Electronics Forum | Wed Apr 21 11:33:20 EDT 2004 | tigerlordgm
As one of our small batch processes, we place BGAs on PCB without using solder paste. We apply tacky flux to a predetermined height on a pallet, "dip" the BGA into the tacky flux to wet the solder balls to the set height, and then use a BGA rework st
Electronics Forum | Wed Sep 01 09:29:03 EDT 2004 | patrickbruneel
Hi Ken, It looks like you have some solid practical experience in the transition from leaded to lead-free soldering. I hope you don�t mind me asking a question. With conventional soldering we have a library of workmanship standards available (SMT,
Electronics Forum | Thu Sep 02 10:51:45 EDT 2004 | patrickbruneel
Hi Ken, Thank you for the reply Ken. I hope I don�t get my behind in trouble for subject change in this thread. But you hit the nail on the head in your comment with Hitachi, when they converted to lead-free they had a �5 times higher defect rate� i
Electronics Forum | Tue Oct 26 13:40:47 EDT 2004 | Paul_pmd
Have the SOIC tested by independant. Clarify as to weather or not you have run this board before. Check to see if the board has been rev'ed. Sometimes IC's are rated at a clock speed or by axcess time. Engneering on this board may be at the tolorance
Electronics Forum | Thu Jan 13 15:13:58 EST 2005 | wallybanger
Hey Folks. I'm new to the board and I figured what better way to introduce my self than with a question =-) I'm living in an Old house and the Power Fluxuations are reaking havoc on my computer. I want to build my self a continuous uninteruptable
Electronics Forum | Wed Apr 06 11:10:47 EDT 2005 | smt_rookie
We process a double-side reflow board (10 ups). Chips and IC's on the bottom side while chips, IC's plus thru-hole connectors and IC sockets on top side (bottom side first then top side reflow). In the past, we were not encountering any soldering pro
Electronics Forum | Mon Apr 25 12:19:21 EDT 2005 | siverts
Hi all, We produced a RoHS (lead-free) prototype order recently, and there was some components that we needed to replace on a couple of PCBA's. We found it very hard to do this even with the new solder iron. The components was just small RoHS SOIC's
Electronics Forum | Tue May 24 21:48:23 EDT 2005 | steve
You can continue repair and rework with tin/lead solder until 7/06. However!!! Any product still on the shelves overseas after 7/06 will be returned to the USA. Thought? Maybe start repairing with SAC305 now? Also SAC is Tin, Silver and Copper. No Ni
Electronics Forum | Tue Jun 07 16:19:58 EDT 2005 | davef
Q1) How to identify on good or bad ICs lead that could contribute to dewetting? A1) Distinguish between good or bad IC that could contribute to dewetting by testing for solderability, according to J-STD-002. Q2) What actions that must be taken in fa
Electronics Forum | Thu Jul 28 05:41:22 EDT 2005 | K
Hi guys, Have any of you encountered harwin connector M80-647 in the past? Have you noticed any problems with the reliability of the component, solderability and 'reworkability' (thats a new word for sure)? Heres a PDF of the component; http://www.
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