Electronics Forum: cracked joints (Page 1 of 23)

cracked joints

Electronics Forum | Fri Jul 12 22:15:56 EDT 2013 | ericrr

Sorry to build up your hopes. The latest thing to hit the air ways at work, I was accessed of fiddling with the oven settings, because there were reports of "cracked joints" there was no mention of where the cracks were, cracked at the pcb or cracke

cracked joints

Electronics Forum | Mon Jul 15 08:11:04 EDT 2013 | emeto

I am pretty sure that is a moisture issue. You should probably bake your boards and some of your parts.

cracked joints

Electronics Forum | Thu Jul 18 04:42:32 EDT 2013 | ericrr

Thanks for that, sorry Im late setting (set by someone else) Speedline Bravo Top 1st chamber, 2nd, 3rd, 4th. 170° (c), 180°, 190°, 270°. Bottom 170°, 180°, 180°, 260° chain speed 27cm/second.

warped boards and cracked solder joints

Electronics Forum | Tue Oct 30 10:54:37 EST 2001 | slthomas

Hey, Preacher, choir here. Unfortunately I didn't get to make the call here (hot boards, new product, same ol' same ol'), but I dam* well am looking for future (print) backup to assist in persuading the bottom line guys that it's cheaper to wait for

warped boards and cracked solder joints

Electronics Forum | Mon Oct 29 18:21:43 EST 2001 | slthomas

We recently have received a lot of warped (bowed and/or twisted behond IPC 600 specs.) bare boards (some our fabricator's fault, some ours by design) and I can't help but figure that long term reliability will suffer when building product with them.

warped boards and cracked solder joints

Electronics Forum | Mon Oct 29 20:19:44 EST 2001 | davef

DON'T do it!!! The two problems you'll have are: 1 Poor manufacturing process control, resulting in weak solder connections. 2 Weak solder connections are stressed, when the board is straightened upon installation in the "box". There's several hits

Lumpy joints

Electronics Forum | Fri Dec 14 13:58:07 EST 2001 | slthomas

This is one I haven't seen before (not in this context, anyway). We have an assembly that we have the SMT done out of house on, because of the high volumes. The boards have two distinct characteristics with respect to the appearance of the solder jo

Re: Cracking solder joints

Electronics Forum | Tue Feb 02 12:31:26 EST 1999 | John

I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product i

Cracking solder joints

Electronics Forum | Mon Feb 01 16:40:45 EST 1999 | Dave Waddick

I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product is

Bulbous joints from wavesoldering

Electronics Forum | Fri Jul 03 04:03:36 EDT 1998 | Steve Cheung

Does anyone know why this typically occurs. We have seen capacitors crack due to stressing. Any good solutions? Regards, Steve.

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