Hello. I am one of the welding quality managers who cooperate with representative semiconductor companies. Our customer has their own acceptance criterion that refer some international code such as ASME Section IX, BPE, 31.3, SEMI F81 etc. Recently, one of the related codes was questioned. It refers about the "Light Straw Color" in SEMI F81 regarding to the acceptance criteria of automatic welding surface color. We are using M200 automatic welding machine. There is no included any picture and details of it. Therefore, I wasn't able to find any exact standard of it. How could I verify that criteria. It's surface standard. It's not about the back bead which has certain criterion like AWS D18.2 or ASME BPE.
-- I would like to get some advices related to this from your various experiences.
Thank you.
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