What is usually done is that a stiffener is added to the area of the connector. The stiffener is usually FR4 (with no copper) glued/epoxied to the flex on the backside of the connector.
However, maybe the application results in minimal bending without stiffeners. What counts as acceptable is rather dependent on the particular parts, the application, and the required reliability and lifetime, so it’s not easy to quantify.
Read More: Best Practices of Rigid Flex PCB Design
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I have a small hobby project in which I want to include the Kingston EMMC04G-M657 eMMC chip. This chip comes in BGA packaging with 0.5mm pitch between balls. I want my board to be cheap, so I’m laying it out for a 4-layer PCB using rigid board design rules of my supplier. I’ve put these rules into KiCAD and it seems to me that there are a few pins that I can neither escape from the BGA with a trace nor disappear with a via. How can I move on?
Sometimes, my PCB supplier mentions about silkscreen ink when it comes to logo printing. I am curious about the types and features of different inks.
I see recommendations of 2-4 mils for solder mask expansion. But why is it necessary?
PCB Schematic: What Is It? Why Is It Important? A printed circuit board design starts with a PCB schematic diagram. This PCB schematic layout visually depicts the
0 ohm resistor, when you first see it, you must be wondered: what’s the function of such an electronic component if it cannot resist anything?
More and more companies are turning to outsourcing PCB design services, especially those lacking PCB expertise and newly established companies, because designing a qualified printed
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