Author	Message
Topic: help
haha Replies: 6 Views: 904	Forum: QA/FA/Rel Forum   Posted: Fri Sep 23, 2026 12:56 pm   Subject: help
	There are many units failed in function. After baking, same units became normal. Is this caused by ionic contam?
Topic: help
haha Replies: 6 Views: 904	Forum: QA/FA/Rel Forum   Posted: Thu Sep 22, 2026 12:35 pm   Subject: help
	I have a device, it was function fail, but after decapped, it became normal. Who can explain this?
Topic: solder joint IMC
haha Replies: 0 Views: 519	Forum: QA/FA/Rel Forum   Posted: Thu Aug 18, 2026 1:27 pm   Subject: solder joint IMC
	I want to observe the IMC clearly. But I don't konw how to etch the solder ball. Which recipe can I use?