Electronics Forum: thread (Page 2781 of 7890)

X out marking

Electronics Forum | Tue Aug 18 13:43:52 EDT 2009 | victorp

Is there a standard (such as IPC) or common industry practice in regards with x-out marking on rejected boards of a panel? Do board shops have to X-out both sides of the rejected board, or one side? If the answer is one side, which side should be ma

X out marking

Electronics Forum | Tue Aug 18 15:36:40 EDT 2009 | davef

There is no standard. You need to decide when you want the cost of bad boards applied to your product cost. Search the fine SMTnet Archives for previous discussions, like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=20871

How many times can a component go through reflow oven?

Electronics Forum | Thu Sep 03 08:39:53 EDT 2009 | markhoch

I'd be more concerned with the pcb itself then I would be with standard SMT components. Are you using a PCB with a high Tg? (170 degrees C or greater)

Problem with flux

Electronics Forum | Thu Aug 20 07:10:46 EDT 2009 | davef

Questions are: * On what portion of the second side of the board [eg, solder only, solder mask only, etc] do you see this white hazy residue? * Could you attach a picture? * You mention cleaning this residue. What have you used to clean the residue?

Problem with flux

Electronics Forum | Thu Aug 20 08:24:07 EDT 2009 | padawanlinuxero

Hi ! In both solder mask and solder joint, I am going to upload a picture today promise, I use only IPA and a ESD brush this kinda clean the problem

Universal GSM

Electronics Forum | Thu Aug 20 08:42:32 EDT 2009 | voytek

Do you know if I can use Multi Pitch Tape Feeder from GSM2 platform on GSM and GSM1 platform? Thank you,

Minimum Tg for LeadFree board.

Electronics Forum | Fri Aug 21 11:00:48 EDT 2009 | boardhouse

Edoardo, if your going to try to push your book, why don't you disclose that the web site your pushing is yours. Boardhouse

Minimum Tg for LeadFree board.

Electronics Forum | Fri Aug 21 13:58:21 EDT 2009 | ghepo

Dear Mike, because that site and handbooks are property of many hands and because I work in a multinational company as manager of a PCB quality dept. Therefore, be mistaken for a "guru" in this major website, is not my purpose. Anyway, thanks for y

Minimum Tg for LeadFree board.

Electronics Forum | Sat Aug 22 09:37:54 EDT 2009 | davef

This gives a different view: http://www.globalsmt.net/regions/mexico/content/view/1184/106/

Minimum Tg for LeadFree board.

Electronics Forum | Sat Aug 29 18:12:25 EDT 2009 | gsala

V-Score, few interesting references http://www.vscore.biz/vsguide.html http://coretec-inc.org/files/Technology_Center/Scoring_Process.pdf regards


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