Saravanabhavan Chandrasekar

9-point DFM and DFA checklist for #PCBdesigners ⬅️ Swipe left 🟨A lot goes into the development of a circuit board. Misplacement of a single element might lead to unexpected errors. You have to perform specific checks before proceeding to the next step to avoid board respins. 👇Check the link in the comments for more details. --> Repost for better reach. #pcbfabrication #pcbassembly #semiconductors #electricalengineering

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How via impedance impacts signal integrity in #PCBs 🟨 Just like trace impedance, via impedance is also important in maintaining the signal integrity of your PCB design. 🟨 𝑨𝒕 𝒉𝒊𝒈𝒉 𝒇𝒓𝒆𝒒𝒖𝒆𝒏𝒄𝒊𝒆𝒔, 𝒗𝒊𝒂𝒔 𝒃𝒆𝒉𝒂𝒗𝒆 𝒂𝒔 𝒕𝒉𝒆 𝒃𝒓𝒆𝒂𝒌𝒑𝒐𝒊𝒏𝒕𝒔 𝒂𝒍𝒐𝒏𝒈 𝒕𝒉𝒆 𝒕𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏 𝒍𝒊𝒏𝒆 𝒂𝒏𝒅 𝒅𝒊𝒔𝒓𝒖𝒑𝒕 𝒕𝒉𝒆 𝒊𝒎𝒑𝒆𝒅𝒂𝒏𝒄𝒆 𝒄𝒐𝒏𝒕𝒊𝒏𝒖𝒊𝒕𝒚. 🟨 This causes signal reflections and introduces jitters in the signal path. 🟨 𝑽𝒊𝒂 𝒊𝒎𝒑𝒆𝒅𝒂𝒏𝒄𝒆 𝒎𝒂𝒊𝒏𝒍𝒚 𝒅𝒆𝒑𝒆𝒏𝒅𝒔 𝒐𝒏 𝒕𝒉𝒆 𝒑𝒉𝒚𝒔𝒊𝒄𝒂𝒍 𝒅𝒊𝒎𝒆𝒏𝒔𝒊𝒐𝒏𝒔 𝒐𝒇 𝒕𝒉𝒆 𝒗𝒊𝒂 𝒃𝒂𝒓𝒓𝒆𝒍, 𝒑𝒂𝒅, 𝒂𝒏𝒅 𝒂𝒏𝒕𝒊-𝒑𝒂𝒅. 𝑩𝒚 𝒓𝒆𝒈𝒖𝒍𝒂𝒕𝒊𝒏𝒈 𝒕𝒉𝒆𝒔𝒆 𝒄𝒉𝒂𝒓𝒂𝒄𝒕𝒆𝒓𝒊𝒔𝒕𝒊𝒄𝒔, 𝒚𝒐𝒖 𝒄𝒂𝒏 𝒄𝒐𝒏𝒕𝒓𝒐𝒍 𝒕𝒉𝒆 𝒔𝒊𝒈𝒏𝒂𝒍 𝒓𝒆𝒇𝒍𝒆𝒄𝒕𝒊𝒐𝒏𝒔. 💡 Read the full blog to learn the solutions to mitigate the odd effects of via impedance discontinuity: https://lnkd.in/gtirgaWv --> Repost for better reach. #pcbdesigners #electricalengineers #electricalengineering

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7 best practices for designing #RF vias 1️⃣ Design the via to maintain low return loss at the input, especially when dealing with wide bandwidths extending into the GHz range. 2️⃣ Ensure the presence of vias does not negatively impact the insertion loss. While insertion loss is not usually the focal point for vias, it is still a critical factor. 3️⃣ Maintain a minimum spacing of  λ/10 between the ground vias. For instance, at 2.4 GHz, the clearance should be 6 mm. 4️⃣ Place ground-connected vias near the PCB edges to reduce RF losses through the laminate. The EMFs are less confined near the edges. However, avoid placing them too close to the edge to prevent mechanical issues. 5️⃣ For mmWave PCBs, implement a via fence around grounded coplanar waveguides to enhance high-frequency isolation. This technique also suppresses frequencies below a cut-off and prevents mmWave interference with other signals. 6️⃣ Avoid return or stitching vias for slow-speed signals with rise times higher than 20 ns (e.g., GPIOs, I2C, and control signals) because such signals are less sensitive to impedance discontinuities. 7️⃣ Prioritize transition methods and the implementation of return paths (e.g., stitching vias) for higher-frequency signals or those with fast rise times to minimize radiation or crosstalk. 👇Check the link in the comments for more details. --> Repost for better reach. #rfengineers #radiofrequencydesigners #hardwareengieers #electricalengineering

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As electronics continue to shrink in size and grow in complexity, ensuring power integrity and thermal management in PCB design has become crucial. Power integrity issues can lead to: 🚫 Signal degradation 🚫 Data corruption 🚫 System failures Thermal management issues can result in: 🚫 Component failure 🚫 Reduced lifespan 🚫 Increased power consumption To mitigate these risks, consider the following best practices in your PCB design: ▶️ Implement decoupling capacitors and filter circuits ▶️ Use power planes and split planes effectively ▶️Optimize trace widths and lengths ▶️Select components with thermal considerations ▶️Utilize thermal analysis tools Share your experiences and tips on power integrity and thermal management in PCB design! Let's discuss best practices and innovative solutions. Send an email on by profile to learn or for collaboration. Repost #PCBDesign #PowerIntegrity #ThermalManagement #ElectronicsEngineering

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Download your free copy of "The Printed Circuit Designer's Guide to Fundamentals of RF/Microwave PCBs" This micro eBook provides information needed to understand the unique challenges of RF PCBs. The authors answer two main questions: what is the correct material to use for a particular project, and what can be done at the design stage to make a product more manufacturable? Readers, especially RF PCB designers, will gain a better understanding of issues related to the design and manufacture of RF/microwave devices from a PCB fabricator's perspective. You can download it here: https://loom.ly/3uTzDJg Connect with us at KT Technical Solutions today to leverage American Standard Circuits, LLC's expertise! Learn more: ktts.us Book a call: calendly.com/meetings-ktts Request for quote: https://lnkd.in/gAWMHAqh Subscribe for the latest updates: https://lnkd.in/gua6gy9k Shayan Khan David Dillman Biofel Carpio Amera A Catherine (Fergie) Ferguson wendy folise Will Tyson, CPIM Basak Sezgin Harshad Dholakiya Eli L. Smith, ETA CPP™ Benjamin Williams Scott Yeakel Cheryl F. Heidi Derrick Andrea Tibbitts Kyle Thompson Michael Engler Matt Casey Justin Nerdrum Nikita Bordbar Claire Caires Dan Arbuckle Ken Thompson Suma Akter Holland Jackson Robert Duke Holland Jackson Shahmeer Khan 🇺🇸 Garrett Jackson Carla Andreina Fuentes Lopez Isaiah Watson #PCBs #GlobalSourcing #ElectronicsManufacturing #NextGenSupplyChain #BuildWithoutBorders #KTTS #KTTechnicalSolutions

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What are 7 Key technologies are involved in OSAT services? 🚀 Wire Bonding Technology: Thin gold or copper wires are used to connect the chip's die to the package’s electrical connections. Analogy: Imagine connecting different rooms in a house using electrical wiring so that the lights, appliances, and outlets all function properly. Wire bonding ensures that the chip is “wired” to communicate with other components. 🚀 Flip-Chip Bonding Technology: The chip is flipped upside down, and solder bumps are used to connect it directly to the substrate, offering better performance. Analogy: Think of flip-chip bonding like stacking pancakes—if you flip the top pancake and directly connect it to the syrupy plate, it will absorb heat and energy faster than if there’s something in between. Flip-chip technology provides a more efficient connection and heat management. 🚀 Wafer-Level Packaging (WLP) Technology: This involves packaging the semiconductor die while still part of the wafer, offering miniaturization and cost benefits. Analogy: Imagine decorating cookies while they are still on the tray before cutting them into individual pieces. It’s a way to streamline the process and reduce the handling time, resulting in more compact and efficient chips. 🚀 Die-Attach Technology Technology: The process of attaching the die (chip) to the substrate or package using adhesive materials. Analogy: This is like gluing a picture onto a photo frame. The adhesive must be strong and precise, ensuring that the picture (die) stays firmly in place and looks good while still functioning. 🚀 Encapsulation/Molding Technology: The process of covering the die and its connections with a protective material to shield the chip from environmental factors such as moisture or dust. Analogy: Encapsulation is like wrapping a delicate gift with bubble wrap to ensure it doesn’t get damaged during transport. The resin used in molding protects the delicate internal components of the chip, just like bubble wrap protects fragile items. 🚀 Ball Grid Array (BGA) Technology: A packaging technology where solder balls are placed in a grid on the underside of the chip package for electrical connections to the PCB. Analogy: Imagine snapping Lego pieces together. The bumps (solder balls) on one piece (the chip) fit into the holes on another piece (the circuit board), creating a solid, conductive connection. 🚀 System-in-Package (SiP) Technology: Multiple chips or components are integrated into one compact package to function together, optimizing space and performance. Analogy: Different tools (chips) are packed into one compact unit, each performing its own task but working together seamlessly. For all semiconductor and AI related content, follow TechoVedas -------------------- P.S: Read The semiconductor Saga- a book that teaches you everything about semiconductors in simple words. Link in comments. If you are looking to invest in semiconductors and don't know where to start, drop us a DM.

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What’s the difference between 2.5D and 3D ICs? As Moore’s Law slows, the industry is shifting to system-level innovation—especially through advanced packaging. Two approaches lead the charge: 2.5D and 3D ICs. -> 2.5D ICs  Chips are placed side-by-side on a common interposer (silicon or glass), which routes connections between them.  Think of it as horizontal integration with higher bandwidth and lower latency than traditional PCBs. -> 3D ICs  Chips are stacked vertically and connected using TSVs (Through-Silicon Vias)—tiny vertical tunnels through silicon that shorten communication paths between layers. -> Analogy: 2.5D is like a city spread across one giant floor—buildings connected by roads. 3D is a skyscraper—floors stacked with elevators (TSVs) moving data vertically. Faster, denser, but harder to cool and build. 💡 Why it matters: These techniques help us move “beyond Moore” by: Increasing bandwidth Reducing latency Shrinking footprint Combining memory, logic, RF, and more in a single package -> Where it’s used: 2.5D: AMD GPUs, Xilinx FPGAs, HBM-connected AI accelerators 3D: Intel’s Foveros, Samsung HBM stacks, Apple M-series chips, and next-gen edge AI hardware Key takeaway:  It’s not just about smaller nodes anymore. Packaging is becoming the new performance lever—and how you connect dies matters as much as what you put on them. P.S. If you're looking for semiconductor news, and insights, check out our Blog The Semiconductor world—a guide to the chip industry in simple terms. Link in comments. #Semiconductors #AdvancedPackaging #2_5D #3DIC #HBM #AIChips #MooresLaw #SystemIntegration #TestFlow #ATOMS

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*** Chiplets, Low Power Design *** Power consumption is always a top priority in chip design, but chiplet-based SoCs introduce new challenges—and opportunities—for optimizing power. In monolithic SoCs, power efficiency is largely a function of scaling the process node. But in chiplet designs, power management is more about partitioning, communication, and interconnect. Each chiplet can have its own power domain, allowing for optimized low-power states. But the real challenge lies in managing: o Inter-chiplet communication power, which can be a significant drain. o Power islands that are not well synchronized, creating unnecessary power leakage. o Voltage domain crossings, which can introduce noise and inefficiencies. The key to successful chiplet power management is balancing design flexibility with power efficiency. Each chiplet can be optimized for a specific function, but the interconnects and power distribution networks need to be carefully planned. What’s your approach to power management in chiplet-based SoCs?

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CDIL teams up with Infineon to power India’s semiconductor ambitions Germany’s Infineon will supply high-performance bare die wafers to Mohali-based CDIL, which will package them into discrete and module semiconductor products Infineon Technologies Continental Device India Pvt. Ltd. Prithvideep Singh Fortune India #semiconductor #indiasemiconductormission #Infineon #powersemuconductor #CDIL

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