Electronics Forum | Sun Nov 30 08:53:15 EST 2003 | davef
IPC-6012A finds "circuit repairs" as acceptable in Class 1, 2, and 3 only "As agreed by user and supplier." So, it is your call, basically. Generally these repairs, if done properly, are reliable. See IPC-7721, 5.2.3, for conductor repair by welding
Electronics Forum | Wed Jul 21 20:52:52 EDT 1999 | Scott
| | I have pcb's in which i am experiencing warping. | | the boards are 12.8125" on a diagonal measurement. | | they are out approximatley .010". | | the boards are combination thru-hole,smt, they also have 3ounce copper.what is acceptable,and what i
Electronics Forum | Thu Jul 22 06:54:45 EDT 1999 | Earl Moon
| | | I have pcb's in which i am experiencing warping. | | | the boards are 12.8125" on a diagonal measurement. | | | they are out approximatley .010". | | | the boards are combination thru-hole,smt, they also have 3ounce copper.what is acceptable,an
Electronics Forum | Thu Aug 02 19:48:53 EDT 2001 | davef
IPC-7711 & IPC-7721 Training and Certification Program Detailed information on the industry standard program for rework, repair and modification of electronic assemblies. [http://www.ipc.org/html/fstraining.htm] Guides and training at http://www.cir
Electronics Forum | Mon Sep 26 10:58:37 EDT 2011 | dyoungquist
Basically in loose general terms: IPC class 1 is for consumer products that you discard when they break. IPC class 2 is for industrial products that last longer than class 1 products and you can repair when they break. IPC class 3 is for military
Electronics Forum | Wed Mar 15 02:21:54 EDT 2017 | soldertraining
Hello Evtimov ! Hope you are well and thanks for replying. I must say here that people must educate for electronics with IPC standards because this industry is going to expand huge in the coming days. I want to share some links which definitely help
Electronics Forum | Tue Jul 27 11:59:19 EDT 1999 | Wolfgang Busko
While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That would m
Electronics Forum | Tue Mar 23 14:08:57 EDT 2010 | davef
You have what looks to be blisters/delamination. Use IPC-A-600F as a guideline for acceptance. Usually, we start from the opinion that blisters/delamination as a fabrication issue, even if it appears during solder processing. Often blisters/delam
Electronics Forum | Wed Sep 20 16:15:53 EDT 2017 | davef
Some requirements to consider are: * Humidity and temperature controlled according to J-STD-001 * Electro-static discharge (ESD) control program according to ANSI/ESD-S-20.20. * Soldering technicians are trained and certified according to J-STD-0
Electronics Forum | Fri Jul 30 10:30:23 EDT 1999 | Wolfgang Busko
| | | While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That w
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