Electronics Forum: tm and flex (Page 5 of 7)

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Tue Jun 16 15:00:12 EDT 1998 | Gary Simbulan

There are some common reason for capacitor cracking on my web page if you want to have a look. The document can be downloaded for your reference. | Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 15:29:17 EDT 1998 | Gary Simbulan

| Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. | First the caps. We stil

Re: Cracking Capacitors and Solder Balls

Electronics Forum | Mon Jun 08 14:52:16 EDT 1998 | Gary Simbulan

| Earl, et al, | Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. | First the caps. We stil

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef

Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept

Pick and place machine for small productions. Any suggestions?

Electronics Forum | Fri Jan 10 00:52:46 EST 2014 | mmdashti

Dear Madam/Sir; 1)Unfortunately after some installations and commissioning SMT and THT machines from Beijing Torch (Termway) company in Iran , the quality and operation of these machines seems so so... bad in quality. Because we have some advertise

Standard of PCB Bow and Twist in Incoming Inspecion

Electronics Forum | Thu Feb 27 12:27:10 EST 2003 | stevel

Hi all, We got some bare pwb in our incoming inspecion looked really wrapped. The maximum twist of the pwb we messured is 0.056inch by following the method in IPC-TM-650 2.4.22 C. (The diagonal size of our pwb is 7.5inch) According to the IPC standa

Need help on PCBA Cleanliness Standards and Specs

Electronics Forum | Tue Nov 25 16:26:43 EST 2003 | tdurston

We are trying to establish requirements and process controls for completed, cleaned SMT assemblies. We have problems with our high impedance circuits (100 meg ohms) being affected by residue. Some boards require additional cleaning cycles to remove

Pick and place machine for small productions. Any suggestions?

Electronics Forum | Sat Oct 05 23:03:05 EDT 2013 | tonnyneoden

Dear Jvadillo, Ok,it doesn't matter ,thank you for your reply. We are researching and developing our new machine which have vision systerm can ensure the precision about mounting for a long time .Maybe will come into the market next year and hoping

Pick and place machine for small productions. Any suggestions?

Electronics Forum | Sat Oct 05 23:05:04 EDT 2013 | tonnyneoden

Dear Jvadillo, Ok,it doesn't matter ,thank you for your reply. We are researching and developing our new machine which have vision systerm can ensure the precision about mounting for a long time .Maybe our new machine will come into the market next

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 12:25:32 EST 2005 | Rob

Hi CW, Larger chip caps can be susceptable to cracking, but mainly this is due to handling - flexing of boards is the main culprit (the part being mechanically joined at both ends to the board). PCB's usually flex easiest along one axis, and larger


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