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Новий партнер у сфері науки kpi чт, 03/06/2025 - 21:35

Luminus Devices Inc of Sunnyvale, CA, USA — which designs and makes LEDs and solid-state technology (SST) light sources for illumination markets — has released its Generation 2 warm dimming COB (chip on board) LEDs, engineered to deliver an lighting that mimics the warm glow of traditional incandescent and halogen sources while offering the efficiency and reliability of LED technology...

Професорка ФММ Ольга Вовк отримала премію Президента України kpi чт, 03/06/2025 - 16:41

Another week, another suite of press release-only-announced products. With the exception of the yearly (and mid-year) in-person WWDC, will we ever see Apple do another live event?

I digress. Some of what Apple’s rolled out (so far…it’s only Wednesday night as I write these words) this week was accurately prognosticated at the end of my last-week coverage. Some of it was near-spot-on forecasted, albeit with an unexpected (and still baffling, a day later) twist. And two of the system unveilings were a complete surprise, at least from a timing standpoint. At all the new system’s cores were processor updates (core…processor…get it?). And speaking of which, there’s a new one of those, as well. In chronological order, starting with Tuesday’s news…

The iPad Air(s)

Apple had migrated the iPad Air tablet from the M1 to the M2 SoC less than a year ago, at the same time expanding the product suite to include both 11” and 13” form factors. So when Tim Cook teased that “There’s something in the Air” on Monday, M3-based iPad Airs were not what I expected. But…whatevah… By the way, careful perusers of the press release might have already noticed that all the performance-improvement claims mentioned there were versus the 2022 M1-based model, not last year’s M2. That selective emphasis wasn’t an accident, folks.

And of course, there’s a new accompanying keyboard; heaven forbid Apple forego any available opportunity for obsolescence-by-design forced updates to its devoted customer base, yes? Sigh.

The iPad

 

This one didn’t even justify a press release of its own; instead, Apple tacked a paragraph and photo onto the end of the iPad Air announcement. Predictably, there were performance-improvement claims in that paragraph, and once again Apple jumped two product generations in making them, comparing against the September 2021 9th-generation A13 Bionic-based iPad versus the year-later (but still 2.5 years old) 10th-generation offering running the A14 Bionic SoC. And the doubled-up internal storage is nice. But here’s the surprising-to-me (and pretty much everyone else whose coverage I read) twist; the new 11th-gen iPad is based on the A16 SoC.

“What’s the big deal, Dipert?” you might understandably be asking at this point. The big deal is that the A16 is not Apple Intelligence-compatible. On the one hand, I get it; the iPad is the lowest-priced offering in Apple’s tablet portfolio, so to maintain shareholder-friendly profit margins, the bill-of-materials cost must be similarly suppressed. But given how increasingly fiscal-reliant Apple is on the services segment of its business, I’m still shocked that Apple didn’t instead put the A17 Pro, already found in the latest iPad mini, into the new iPad too, along with enough RAM to enable AI capabilities. Maybe the company just wants to upsell everyone to the iPad Air and Pro instead? If so, I’ve got an intentionally terse response: “good luck with that”.

The MacBook Air(s)

This is what everyone thought Tim Cook was alluding to with Monday’s “There’s something in the Air” tease, in-advance suggested by dwindling inventory of existing M3-based products. And one day later than the iPad Air, they belatedly got their wish. That said, with the exception of a new sky blue scheme (No more Space Gray? You gotta be kidding me!), all the changes are on the inside. The M4 SoC (this time exclusively with a 10-core CPU, albeit in both 8-and-10-core GPU variants) is more energy-efficient than its M3 forebear; we’ve already discussed this. But Apple was even more comparison-silly this time, benchmarking against the three-generations-old (and more than four years old) M1 MacBook Air, as well as even more geriatric x86-based variants (Really, Apple? Isn’t it time to stop kicking Intel?). About the most notable thing I can say, aside from the price cut, is that akin to its M4 Mac mini sibling, the M4 MacBook Air now supports up to two external displays in addition to the integrated LCD, without any software-based (therefore CPU-burdening) DisplayLink hacks. Oh, and the front camera is improved. Yay.

The Mac Studio

Speaking of the Mac mini, let’s close by mentioning its bigger (albeit not biggest) brother, the Mac Studio. Until earlier today (again, as I write these words on Wednesday evening) the most powerful Mac Studios, introduced at the 2023 WWDC, were based on M2 SoC variants: the 12 CPU core and 30-or-38 GPU core M2 Max; and dual-die (interposer-connected) 24 CPU core and 60-or-76 GPU core M2 Ultra. They were follow-ups to 2022’s M1 Max (an example of which I own) and M1 Ultra premiere Mac Studio products. So, we were clearly (over)due for next-gen offerings. But, although the M1 versions were introduced in March, M2 successors arrived the following June. So, I’d placed my bets on the (likely June) 2025 WWDC for the next-gen launch timing.

Shows you how much (or accurately, little) I know…Apple instead decided on a 2022-era early-March re-do this time. And skipping past the M3 Max, the new “lower-end” (I chuckle to even type those words, and you’ll see why in second) version of the Mac Studio is based on the 14-or-16 CPU core, 32-or-40 GPU core, and 16 neural processing core M4 Max SoC also found in the latest high-end MacBook Pros.

The M3 Ultra SoC

But, at least for now (and maybe never?) there’s no M4 Ultra processor. Instead, Apple revisited the M3 architecture to come up with the M3 Ultra, its latest high-end SoC for the Mac Studio family. It holds 28-or-32 CPU cores, 60-or-80 GPU cores, and 32 neural processing cores, all prior-gen. I’m guessing the target market will still be satisfied with the available “muscle”, in spite of the generational back-step. And it’s more than just an interposer-connected dual-die M3 Max pairing. It also upgrades Thunderbolt capabilities to v5, previously found only on higher-end M4 SoC variants, and the max RAM to 512 GBytes (the M3 Max only supports 128 GBytes max…see what I did there?).

Maybe we’ll see a next-gen Mac Pro at WWDC, then? And maybe it (or if not, which of its other product line siblings) will be the first system implementation of the next-gen M5 SoC? Stand by. Until then, let me know your thoughts on this week’s announcements in the comments!

—Brian Dipert is the Editor-in-Chief of the Edge AI and Vision Alliance, and a Senior Analyst at BDTI and Editor-in-Chief of InsideDSP, the company’s online newsletter.

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• The 2024 WWDC: AI stands for Apple Intelligence, you see…
• Apple’s fall 2024 announcements: SoC and memory upgrade abundance
• 2024: A technology forecast for the year ahead

The post Apple’s spring 2025 part II: Computers, tablets, and a new chip, too appeared first on EDN.

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Japan-based ROHM Co Ltd says that its EcoGaN series of 650V GaN HEMTs in the TOLL package has been adopted by Murata Manufacturing Group subsidiary Murata Power Solutions (a Japan-based supplier of electronic components, batteries and power supplies) for AI server power supplies that will enter mass production this year. ROHM says that integrating its GaN HEMTs (which combine low-loss operation with high-speed switching performance) in Murata’s 5.5kW AI server power supply unit achieves greater efficiency and miniaturization...

📰 Газета "Київський політехнік" № 9-10 за 2025 (.pdf) Інформація КП чт, 03/06/2025 - 14:58

The post Global manufacturers welcome smart manufacturing and PCB technology platform linking Southeast Asian industrial supply chain appeared first on ELE Times.

The United States has been making significant strides in renewable energy, with solar power emerging as a key player in the clean energy transition. Over the past decade, massive solar farms have been established across the country, contributing significantly to the national grid. These solar power plants not only generate sustainable electricity but also help reduce carbon emissions and promote energy independence. Below is an in-depth look at the top 10 largest solar power plants in the USA, detailing their capacity, location, and impact.

1. Copper Mountain Solar Facility

• Location: Nevada
• Capacity: 802 MW (AC)

The Copper Mountain Solar Facility in Nevada is one of the largest photovoltaic (PV) solar plants in the United States. Developed in five phases, this project has continually expanded since its inception. Its large-scale capacity supplies clean energy to thousands of homes while reducing reliance on fossil fuels. The facility showcases how solar energy can be scaled up efficiently to integrate with the national electricity grid.

2. Gemini Solar Project

• Location: Nevada
• Capacity: 690 MW (AC)

The Gemini Solar Project is one of the most ambitious solar power projects in the U.S. In addition to its impressive solar power generation, it includes 380 MW of battery storage, ensuring stable energy supply even during periods of low sunlight. This hybrid solar-plus-storage system demonstrates the future of renewable energy, where energy storage plays a crucial role in grid stability and efficiency.

3. Edwards Sanborn Solar and Energy Storage Project

• Location: California
• Capacity: 864 MW (Solar) + 3,320 MWh (Battery Storage)

Located in California, the Edwards Sanborn Solar and Energy Storage Project is a groundbreaking renewable energy initiative. This facility integrates large-scale solar power generation with one of the largest battery storage capacities in the country. The battery component ensures that excess solar energy generated during the day is stored and used when needed, making it a game-changer in the renewable energy sector.

4. Lumina I and II Solar Project

• Location: Texas
• Capacity: 828 MW

Texas is rapidly becoming a leader in solar power, and the Lumina I and II Solar Project is a testament to that growth. Expected to be completed by 2024, these twin solar farms will add 828 MW of clean energy to the state’s power grid. Texas’ solar expansion highlights how renewable energy can complement traditional power sources, especially in a state known for its oil and gas industry.

5. Mount Signal Solar

• Location: California
• Capacity: 794 MW

The Mount Signal Solar project, also known as the Imperial Valley Solar Project, has been built in multiple phases since 2014. This massive solar farm is located in the sun-drenched Imperial Valley of California, where it harnesses abundant sunlight to generate clean electricity. The project has played a critical role in California’s transition towards 100% clean energy goals.

6. Solar Star I & II

• Location: California
• Capacity: 747 MW

When it was completed in 2015, Solar Star I & II was the largest solar power plant in the world, with a capacity of 579 MW (AC). It set new benchmarks for utility-scale solar installations and inspired the development of even larger projects. Spread across 13 square kilometers, this solar farm utilizes advanced photovoltaic technology to efficiently convert sunlight into electricity.

7. Topaz Solar Farm

• Location: California
• Capacity: 550 MW (AC)

The Topaz Solar Farm is another key solar project in California, operational since 2014. One of the pioneering utility-scale solar projects, it consists of over 9 million thin-film photovoltaic panels. This farm has been instrumental in proving the economic and environmental feasibility of large-scale solar projects in the United States.

8. Desert Sunlight Solar Farm

• Location: California
• Capacity: 550 MW (AC)

Commissioned in 2014, the Desert Sunlight Solar Farm is one of the largest solar projects in the world. It spans 3,800 acres in the Mojave Desert and consists of over 8 million solar panels. This farm contributes significantly to California’s ambitious renewable energy targets, reducing carbon emissions and supporting a cleaner energy future.

9. Ivanpah Solar Electric Generating System

• Location: California
• Capacity: 392 MW

Unlike traditional photovoltaic solar farms, the Ivanpah Solar Electric Generating System uses solar thermal technology. It employs mirrors (heliostats) to focus sunlight onto central towers, generating steam to power turbines. This innovative approach allows the plant to produce electricity even when sunlight is not directly available, making it one of the most advanced solar plants in the country.

10. Agua Caliente Solar Project

• Location: Arizona
• Capacity: 290 MW

The Agua Caliente Solar Project in Arizona is notable for utilizing thin-film cadmium telluride (CdTe) solar panels, which offer cost-effective and high-efficiency energy production. The plant generates over 626 GWh of clean energy annually, powering thousands of homes and reducing dependence on conventional power sources.

The Future of Solar Energy in the USA

The U.S. solar industry continues to grow, with large-scale projects like these playing a crucial role in the transition towards clean and renewable energy. These power plants not only contribute to reducing greenhouse gas emissions but also help in creating jobs, boosting energy security, and promoting technological advancements in solar power and battery storage.

With increasing investments in solar farms and energy storage, the United States is well on its way to achieving a sustainable and carbon-free energy future.

The post Top 10 Solar Power Plants in the USA appeared first on ELE Times.

Agriculture in India has witnessed a technological revolution, with drones playing a pivotal role in modernizing farming practices. These unmanned aerial vehicles (UAVs) assist in tasks such as crop monitoring, precision spraying, and data analysis, leading to increased efficiency and sustainability. Here are ten prominent agriculture drone companies in India contributing to this transformation:

1. Garuda Aerospace

Based in Chennai, Garuda Aerospace specializes in drone solutions for various sectors, including agriculture. Their drones are designed for precision spraying, crop health monitoring, and surveillance, aiming to enhance productivity and reduce manual labor in farming.

2. IoTechWorld Avigation

IoTechWorld Avigation, headquartered in Gurugram, offers innovative agricultural drones like the Agribot. This multi-rotary drone is India’s first DGCA-approved agriculture drone, used for spraying, broadcasting, and assessing soil and crop health.

3. Throttle Aerospace Systems

Bangalore-based Throttle Aerospace Systems manufactures UAVs for various applications, including agriculture. Their drones assist in land mapping, surveillance, cargo delivery, inspection, and disaster management, providing versatile solutions for the farming sector.

4. Aarav Unmanned Systems (AUS)

AUS, located in Bangalore, offers drone-based solutions for mining, urban planning, and agriculture. Their drones facilitate precision agriculture by providing high-resolution aerial imagery for crop health monitoring and yield estimation.

5. Dhaksha Unmanned Systems

Chennai-based Dhaksha Unmanned Systems provides drones for agriculture, surveillance, and logistics. Their agricultural drones are equipped with intelligent spraying systems and real-time data analysis capabilities, enhancing farming efficiency.

6. ideaForge

Headquartered in Mumbai, ideaForge is a leading manufacturer of UAVs for defense, homeland security, and industrial applications, including agriculture. Their drones offer high endurance and are used for large-scale mapping and surveillance in farming.

7. General Aeronautics

Bangalore-based General Aeronautics offers the Krishak series drones for agricultural purposes. Known for their durability and efficient spraying systems, these drones are compatible with various attachments, allowing multi-functional use in diverse agricultural settings.

8. Paras Aerospace

Paras Aerospace, located in Bangalore, specializes in user-friendly and affordable drones for agriculture. Their Paras Agricopter series is designed for precision spraying and crop monitoring, aiming to optimize resource utilization and increase yields.

9. Johnnette Technologies

Based in Noida, Johnnette Technologies offers agricultural drone services, including crop health monitoring, precision spraying, and remote sensing. Their drones are designed to optimize agrochemical applications, reducing wastage and maximizing crop yields.

10. Asteria Aerospace

Bangalore-based Asteria Aerospace provides drone-based solutions for various sectors, including agriculture. Their drones are used for crop monitoring, field mapping, and surveillance, aiding farmers in making data-driven decisions.

 

These companies are at the forefront of integrating drone technology into Indian agriculture, offering solutions that enhance productivity, efficiency, and sustainability. As the industry continues to evolve, these innovations are expected to play a crucial role in meeting the growing demands of modern farming.

The post Top 10 Agriculture Drone Companies in India appeared first on ELE Times.

k-Space Associates Inc of Dexter, MI, USA — which was founded in 1992 and produces thin-film metrology instrumentation and software for research and manufacturing of microelectronic, optoelectronic and photovoltaic devices — has introduced kSA RHEED-Sim as its new reflection high-energy electron diffraction (RHEED) simulation software. Suitable for both researchers and students, simulation possibilities range from basic simulated RHEED patterns of common structures to complex patterns produced by reconstructions or complex surfaces, and even dynamic simulations with changing phenomena...

A new design platform streamlines electronics system development from component selection to software development by integrating hardware, software, and lifecycle data into a single digital environment. Renesas 365 is built around Altium 365, a design suite that provides seamless access to component sources and intelligence while connecting all stakeholders throughout the creation process.

Embedded system developers often struggle due to manual component searches, fragmented documentation, and siloed design teams. Renesas 365 addresses these challenges by connecting Altium’s cloud-connected system design platform with Renesas’ components for embedded compute, connectivity, analog, and power applications.

Renesas 365, built around Altium’s system design platform, streamlines development from component selection to lifecycle management. Source: Renesas

Renesas CEO Hidetoshi Shibata calls it a first-of-its-kind solution. “It’s the next step in the digital transformation of electronics, bridging the gap between silicon and system development.” Renesas has joined hands with the company it acquired last year to redefine how electronics systems are designed, developed, and sustained—from silicon selection to full system realization—in a connected world.

Here is how Renesas 365 works in five steps.

1. Silicon: Renesas 365 will ensure that every silicon component is application-ready, optimized for software-defined products, and seamlessly integrated with the broader system.
2. Discover: This part powered by Altium enables engineers to find components as well as complete solutions from Renesas’ portfolio for faster and more accurate system design.
3. Develop: Altium powers this part to provide a cloud-based development environment to ensure real-time collaboration across hardware, software, and mechanical teams.
4. Lifecycle: Also powered by Altium, this part establishes persistent digital traceability to facilitate over-the-air (OTA) updates and ensure compliance and security from concept to deployment.
5. Software: This part provides developers with artificial intelligence (AI)-ready development tools to ensure that the software is optimized for their applications.

The final part of Renesas 365 offerings demonstrates how a unified software framework covering low- to high-compute performance can help developers create software-defined systems. For instance, these development tools enable real-time, low-power AI inference at the edge. They can also track compliance and automate OTA updates to ensure secure lifecycle management.

This cloud-connected system design platform can aid developers in everything from component selection to embedded software development to OTA updates. Meanwhile, it ensures that existing workflows remain uninterrupted and supports everything from custom AI models to advanced real-time operating system (RTOS) implementations.

Renesas will demonstrate this system design platform live at embedded world 2025, which will be held from 11 to 13 March in Nuremberg, Germany. The company’s booth 5-371 will be dedicated to presentations and interactive demonstrations of the Renesas 365 solution.

Related Content

• PCB design basics
• PCB Design Considerations and Tools
• PCB Design Basics: Example design flow
• Renesas acquires Altium as part of its digitalization strategy
• What does Renesas’ acquisition of PCB toolmaker Altium mean?

The post This is how an electronic system design platform works appeared first on EDN.

Календар вступника КПІ kpi чт, 03/06/2025 - 11:35

submitted by /u/BlownUpCapacitor [link] [comments]

📖 Конкурс на здобуття премій КПІ ім. Ігоря Сікорського за кращі видання kpi ср, 03/05/2025 - 16:31

It’s remarkable how many switching regulator chips use the same basic two-resistor network for output voltage programming. Figure 1 illustrates this feature in a typical (buck type) regulator. See R1 and R2 where:

Vout = Vsense(R1/R2 + 1) = 0.8v(11.5 + 1) = 10v

Figure 1 A typical regulator output programming network with a basic two-resistor network for output voltage programming.

Wow the engineering world with your unique design: Design Ideas Submission Guide

Quantitatively, the Vsense feedback node voltage varies from type to type and recommended values for R1 can vary too, but the topology doesn’t. Most conform faithfully to Figure 1. This defacto uniformity is useful if your application needs digital control of Vout via PWM. 

Figure 2 shows the simplistic three-component solution it makes possible where:

Vout = Vsense(R1/(R2 + R3/DF) + 1) = 0.8v to 10v as DF = 0 to 1

All that’s required to add PWM control to Figure 1 is to split R2 into two equal halves, connect filter cap Cf to the middle of the pair, and add PWM switch Q1 in series with its ground end.

Figure 2 Simple circuit for regulator programming with PWM where Vout ranges from 0.8 V to 10 V as the duty factor (DF) goes from 0 to 1.

The Cf capacitance required for 1-lsb PWM ripple attenuation is 2(N-2)Tpwm/R2, where N is number of PWM bits and Tpwm is the PWM period. Since Cf will never see more than perhaps a volt, its voltage rating isn’t much of an issue.

A cool feature of this simple topology is that, unlike many other schemes for digital power supply control, only the regulator’s internal voltage reference matters to regulation accuracy. Precision is therefore independent of external voltage sources, e.g. logic rails. This is a good thing because, for example, the tempco of the TPS54332’s reference is only 15 ppm/oC.

Figure 3 graphs Vout versus the PWM DF for the Figure 2 circuit where the X-axis is DF, the Y-axis is Vout and,

Vout = Vsense(R1/(R2 + R3/DF) + 1)
Vout(min) = Vsense
Vout(max) = Vsense(R1/(R2 + R3) + 1)
R1/(R2 + R3) = Vout(max)/Vsense – 1

Figure 3 Graph showing Vout versus the Figure 2 PWM DF.

Figure 4 plots the inverse function with DF vs Vout where,

DF = R3/(R1/(Vout/Vsense – 1) – R2)

The nonlinearity of DF versus Vout does incur the cost of a bit of software complexity (two subtractions and three divisions) to do the conversion. But since it buys substantial circuitry simplification, it seems a reasonable (maybe zero) cost. Or, if the necessary memory is available, a lookup table is another (simple!) possibility.

 Figure 4 DF versus Vout; the non-linearity necessitates a bit of software complexity to perform the conversion.

Stephen Woodward’s relationship with EDN’s DI column goes back quite a long way. Over 100 submissions have been accepted since his first contribution back in 1974.

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The post Three discretes suffice to interface PWM to switching regulators appeared first on EDN.

According to the new market & technology report ‘Status of the Compound Semiconductor Device Industry’ from market analyst firm Yole Group, the compound semiconductor device market is growing rapidly at a compound annual growth rate (CAGR) of nearly 13% from 2024 to about $25bn by 2030, outpacing the broader semiconductor market...

Left one is bought from Mouser for about 6$ each and the right one was less than 1$ from Alibaba. Right one couldnt handle 200V drain to source. While its rated for 600V. I know they are not the same part but watch out for culprits when buying mosfets. I read some legit suppliers got fake ICs back when there was silicon shortage. submitted by /u/Real-Entrepreneur-31 [link] [comments]

Reflow soldering is a widely used technique in electronics manufacturing for assembling surface-mount devices (SMDs) onto printed circuit boards (PCBs). This method involves applying solder paste to the board, placing components on top of it, and then heating the assembly in a controlled manner to melt and solidify the solder. The process ensures strong and reliable solder joints, making it a preferred method for mass production in the electronics industry.

Unlike wave soldering, which is typically used for through-hole components, reflow soldering is designed for SMDs, allowing for higher component density and miniaturization of electronic circuits. The precision and efficiency of reflow soldering make it ideal for modern electronic manufacturing, where consistency and high reliability are critical.

How Reflow Soldering Works

The reflow soldering process consists of several carefully controlled stages to ensure optimal soldering results. Each stage plays a crucial role in preventing defects such as solder bridging, tombstoning, or incomplete solder joints. The main steps include:

1. Solder Paste Application

The process begins with the application of solder paste, a mixture of powdered solder alloy and flux, onto the PCB. This is typically done using a stencil and a squeegee to ensure uniform deposition. The accuracy of solder paste application is critical as it determines the quality of the solder joints.

2. Component Placement

Once the solder paste is applied, surface-mount components are carefully placed on the PCB using automated pick-and-place machines. These machines use vision systems to precisely position components, ensuring alignment with the solder paste deposits.

3. Preheating Stage

The assembled board is then gradually heated in a reflow oven. The preheating stage raises the temperature of the PCB and components at a controlled rate to prevent thermal shock. This phase also activates the flux in the solder paste, which removes oxidation and improves wetting.

4. Thermal Soaking

After preheating, the PCB enters a thermal soaking phase where the temperature is maintained at a specific range to ensure uniform heat distribution. This helps in stabilizing the components and further activating the flux.

5. Reflow Zone (Peak Temperature Stage)

In this stage, the temperature reaches its peak, typically between 220°C and 250°C, depending on the solder alloy used. This is the critical moment where the solder paste melts, creating reliable electrical and mechanical connections between the components and the PCB.

6. Cooling Phase

Once the solder has melted and formed solid connections, the PCB is gradually cooled in a controlled manner. Controlled cooling prevents thermal stress and ensures the formation of strong, defect-free solder joints.

Reflow Soldering Uses & Applications

Reflow soldering is widely used in various industries, primarily in the manufacturing of electronic devices. Some key applications include:

• Consumer Electronics: Smartphones, laptops, tablets, and gaming consoles all rely on reflow soldering to ensure compact and efficient circuit assemblies.
• Automotive Electronics: Modern vehicles contain complex electronic systems, including engine control units (ECUs), infotainment systems, and safety sensors, all of which use SMD technology and reflow soldering.
• Medical Devices: High-precision medical equipment, such as diagnostic devices and portable health monitors, require reliable soldering for seamless functionality.
• Industrial Electronics: Industrial automation, control systems, and robotics benefit from reflow soldering due to its ability to create robust and durable electronic circuits.
• Aerospace & Defense: High-reliability electronics for satellites, avionics, and defense applications depend on precise and high-quality soldering techniques like reflow soldering.

Advantages of Reflow Soldering

Reflow soldering offers several advantages that make it the preferred method for assembling SMD components:

• High Precision: Automated solder paste application and component placement result in accurate soldering with minimal defects.
• Consistency and Reliability: Controlled heating profiles ensure strong and uniform solder joints, reducing the chances of failure.
• Mass Production Efficiency: The process is highly automated and scalable, making it suitable for high-volume manufacturing.
• Compatibility with Small Components: Reflow soldering supports miniaturized electronics, enabling the development of compact and lightweight devices.
• Improved Aesthetic and Functionality: Unlike wave soldering, reflow soldering does not leave excess solder, resulting in cleaner circuit boards with better electrical performance.

Disadvantages of Reflow Soldering

Despite its benefits, reflow soldering also has some limitations:

• Complex Equipment Requirements: Reflow ovens and pick-and-place machines are expensive, making the initial setup costly for small manufacturers.
• Component Sensitivity: Some temperature-sensitive components may get damaged if exposed to high temperatures during the reflow process.
• Risk of Defects: Issues such as tombstoning (where small components lift on one side) or solder bridging (where excess solder creates unintended connections) can occur if process parameters are not optimized.
• Limited Use for Through-Hole Components: While hybrid techniques exist, reflow soldering is primarily designed for surface-mount devices, requiring additional methods for through-hole components.

Conclusion

Reflow soldering is a highly efficient and precise method for assembling surface-mount components on PCBs. With applications ranging from consumer electronics to aerospace, it remains a crucial technique in modern electronic manufacturing. While the process requires careful temperature control and specialized equipment, its benefits in terms of reliability, efficiency, and scalability make it indispensable. As technology advances, improvements in solder paste formulations and reflow oven designs continue to enhance the effectiveness of reflow soldering, ensuring its relevance in the ever-evolving electronics industry.

The post Understanding Reflow Soldering: Definition, Process, Working, Uses & Advantages appeared first on ELE Times.

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