Electronics Forum | Mon Aug 21 19:35:51 EDT 2000 | Dave F
Kyung Sam Park: Sure, several causes of plastic QFP package delamination, other than humidity absorption, are: * Corrosion on component leads * CTE mismatch between leads and package materials * Package material adhesion strength degradation Wh
Electronics Forum | Fri Feb 25 05:42:17 EST 2000 | Istv�n Dominik
Hi, We should wavesolder a PLCC44 package. The PCB is under the design procedure now and we must specify the best parameters (the orientation (45 or 90 degrees) of the package on the PCB,the number, the positon and the size of the solder thief pads
Electronics Forum | Fri Jan 26 09:37:42 EST 2001 | blnorman
Our current solder paste vendor wants us to evaluate a paste. One of the selling points is that this paste (SnPb) will have the same flux package that will be used with some of their lead-free pastes. We are looking at going to SAC when we go lead-
Electronics Forum | Tue Aug 22 09:30:31 EDT 2000 | Kelvin Chow
Mr. Lee, Although most of the lead free alloy used for solder paste and wave soldering have been identified, a suitable alloy used for leaded Ic packages (like QFP, PLCC..etc) have not been identified yet. Do you have any suggestion on this lead-f
Electronics Forum | Thu Aug 23 15:43:24 EDT 2001 | mparker
Have you considered vacuum package in ESD bags, just like the way the IC's are packaged? What about conformal coating for the units being stored? 10 years is a long time for End of Service life of a product. You may need to get accelerated life testi
Electronics Forum | Fri Sep 13 09:02:52 EDT 2002 | tvielhaber
A distributor has some smt components (QFP) packaged in a vacuum sealed package with a 1991 date code. Should I accept these parts? What are the main issues I need to be concerned about? Solerability, moisture? Won't the vaccum seal package minim
Electronics Forum | Fri Jun 27 15:37:02 EDT 2003 | caldon
Charlie- You answered your own question...1206, 0201, 0603, 0805, 0402 are all the package dimensions. In addition Here is a generic link from practical components that list most package sizes, feeder size, tape type... http://www.practicalcomponen
Electronics Forum | Fri Nov 17 08:04:24 EST 2006 | jdumont
Morning all. I was wondering if there is a packaging standard (other than 033B) that we can put on our POs to vendors. We are seeing a lot of MSD components come in packaged incorrectly and do not have the man power to bake everything before it goes
Electronics Forum | Mon Nov 20 10:06:05 EST 2006 | jdumont
Yes, we are in the same boat. We get stuff unsealed, not labeled correctly, wrong packaging or all of the above. Im going to sit down with the purchaser here this week and get this figured out. Being packaged correctly still doesnt mean the parts arn
Electronics Forum | Wed Mar 14 16:23:01 EDT 2007 | J
I am not sure Ersascope and X-Ray will tell you the results you are looking for. My experience with x-ray has proven that misalignment, voids, and bridging are really the only failures that can confidently be observed. You may have solder in place,
