Questions tagged [production-testing]
Production Testing is sometimes called in-line testing. That is the PCB or assembly is completed but is only a sub-assembly. There can be many sub-assemblies to get to the final product. In-line testing is used to make sure sub-assemblies are fully functional per engineering standards, then sent to the stock room to be issued for the next assembly level. This procedure assures but does NOT guarantee that the final product will pass final testing.
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How do professional designs compensate for offset voltage in opamps?
I am new to electronics and have been told in class to always add precision potentiometers to compensate for input offset voltages in opamps for signal conditioning. My concern is that this offset ...
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How to measure gigaohm resistors?
I've got an issue that appears to be caused by damaged resistors that are either open circuited or of too low a value due to contamination. The problem is that they're gigaohm resistors, so to a ...
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Low volume PCB assembly testing
I've ordered fabrication and assembly of small PCB batches (~100) a couple of times already. Each time, the assembly factory asked me if I wanted to do testing on the boards. Since I'm not a ...
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Production testing, design-for-test, test points, and other techniques
I have been working with some board layouts that include a test point for every net on the circuit (or close to it). This lead me to a search for other topics about test points and general design-for-...
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How do you determine if a new microcontroller is defective?
I've never dealt with parts being defective strait from digikey, but 3 new Atmel ATmega164A's that I've received have been exhibiting extremely odd behaviour.
I narrowed it down to something to do ...
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What parts would one typically use for automated PCB testing?
I have a circuit board in production, primarily through-hole, to the tune of ~400 units per year. Each one is manually inspected and tested. The board has ten distinct voltage rails, four voltage ...
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How come product makers tend to make their own boards rather than putting together modules?
It seems that most, if not all, companies that produce mass market goods use custom boards rather than putting together modules that are already available in the general market.
For instance, battery ...
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Solution to detect bad vias in production process
I face the problem of damaged (cracked) vias in a rigid/flex assembly.
It is very difficult to detect those defects before mounting the assembly. Products with cracked vias may fail during lifetime ...
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Boundary scan developer and testing tools
I have to choose a tool for production testing of fairly dense PCB's with 4+ FPGAs 10+ DSPs, ethernet controllers and PCI controllers.. Does anyone have any experience with any of the tools available ...
Keh0082
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GPS QA during manufacturing
Testing and integration engineers on electronics.stackexchange
How do you quality check if a GPS module and its subsystems are up to the mark during manufacturing? ...
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Is PCB testing of all nets after assembly required?
That is my first time asking an assembly house to produce 200 units of a PCB (and not the usual 3 or 5 PCBs). The assembly house came back to me saying that the testability of the board was bad and ...
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How to program MCUs and test PCBs in mass production?
I am working on a PCB which includes an microcontroller (STM32), some sensors and a BLE module. Right now it is still a prototype, only 3 units have been produced.
To program the microcontroller, I ...
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What Regulatory Requirements are Really Necessary for Sale in the USA?
I understand that unless you fall into some specific product categories that are exempt from FCC regulations, electronic products sold in the US are legally required to meet FCC EMC limits. However, ...
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AMD/Intel CPU Yield/Failure Rate
This question is based on another question submitted here: Is it possible to make illegal clones of an Intel Core i7?
More specifically, it's based around this quote:
I've been led to believe it's ...
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PCB Panelization tool/SW and adding test connections
I prepared 4 different PCB layouts on Eagle CAD and generated Gerber files. As I can see Eagle CAD doesn't have any option to panelization.
Is there any free tool/program that can allow me to ...
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