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.
Echter, 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.
Lees verder: Best practices van Rigid Flex PCB-ontwerp
#PCB-ontwerp
When I sourcing PCB online, I found some of them are with heavy copper. Why would the designer use copper for PCB?
I’ve ordered fabrication and assembly of small PCB batches (100st) a couple of times already. Each time the factory asked me if I want to do test on the PCB. But I don’t what to do about it. And I test them by myself. Vervolgens, the result of the testing is unacceptable with 15% soldering problems. So bad. I think I will ask the supplier to test them before delivery.
Wat zou voor een ervaren persoon de gemiddelde snelheid zijn van het assembleren van componenten voor opbouwmontage op een PCB?? Ervan uitgaande dat ze een bureau hebben dat correct is ingesteld (pick and place station) and the PCB has solder paste already applied.
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