AnsweredAssumed Answered

STM8L151F3 high failure rate

Question asked by mikhalchenko.andrey_ on Jun 16, 2016

Situation:

Chip STM8L151F3U6.

Circuit = MCU + LED (work time counter) 
circuit.jpg
 

After manual assembly, we have 80% of the output of defective products.

Current consumption in reset from 0.1 mA to 8 mA (from sample to sample).

Power supply voltage - 3.3 V.


Dropped causes the release of low-quality product:

1. Wrong thermoprofile soldering. Not applicable -large experience of

workers, high-quality equipment.

2. ESD damage. Not applicable - the company manages and controls the

media ESD. Working in accordance with ISO 13485.

3.Fake component. It is unlikely - the purchase by www.digikey.com


At the moment, there were two hypotheses: improper storage /

packaging supplier or fake.


Question:

What level of sensitivity to moisture in the component. According to your

response resources are not found. Documentation ECOPACK also does not

answer this question.


With all respect, Andrey.

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