Electronics Forum | Mon Jul 27 08:42:13 EDT 1998 | Justin Medernach
| Hi, good friends | I found this site is so wonderful to learn SMT techniques meaningfully. | We now employ 3 Fuji GL-541 dispensors and raw material with Soma IR-120. but we found glue string casually. From my experience from trouble-shooting the c
Electronics Forum | Tue Jun 12 18:06:17 EDT 2001 | davef
The criterion you use will depend on the test method you select. For minimum requirements, look at J-STD-001C, Para 8, "Cleanliness Requirements". I figure that you�d measure the residues on a lot of your current product, measure the res on a lot o
Electronics Forum | Tue May 23 12:18:25 EDT 2000 | mike weekes
Which companies would you consider for protective coatings, (conformal coating) and other levels of protection? I am taking a fresh look at alternatives. Know any good tests for testing compatability of coating with flux - aqueous or no clean? SMT
Electronics Forum | Wed Jun 24 16:30:37 EDT 1998 | Justin Medernach
Hi all, I've received an interesting opportunity. I'm in the contract mfg. game at the prototype level. I have a chance to build a Flip Chip test vehicle. I know little about the process but am very familiar with the packaging / process terminolog
Electronics Forum | Wed Jun 24 17:41:46 EDT 1998 | Wayne
| Hi all, | I've received an interesting opportunity. I'm in the contract mfg. game at the prototype level. I have a chance to build a Flip Chip test vehicle. I know little about the process but am very familiar with the packaging / process termin
Electronics Forum | Tue Apr 02 14:56:30 EDT 2024 | kingkelvin
Hi all - my problem is a bit worse now - I can get all hydra tests to pass in extended service, except indicator levels at current 7 a bit high past 190 limit at ~210-220 - other than that hydra bank re-installs OK - but still it makes a bad hitting
Electronics Forum | Wed Feb 02 12:11:31 EST 2000 | Dave F
Casimir: Resistivity of Solvent Extract (ROSE) testers measure ionic contamination by washing boards with a DI water/IPA solution. (No-clean people: Stop and go on to something else.) The testers are process control instruments used to monitor a
Electronics Forum | Sat Feb 10 17:12:03 EST 2001 | rpereira
I admit, 16 mil QFP printing is very challenging but if all your control factors (print speed, etc...) are setup correctly (through DOE) extremely high yields can be achieved and more importantly a repeatable and robust product will be manufactured.
Electronics Forum | Wed Sep 15 17:13:53 EDT 2004 | GS
Do anyone of you know if are there any Standard (IPC, JEDEC, etc) telling how much can be the acceptable level of TIC (ugr/cm2 NaCl equivalent) allowed on surace of Connectors, Components,before to be assembled on PCB ? Many thanks Rgds GS
Electronics Forum | Wed Nov 29 20:49:14 EST 2006 | davef
According to J-STD-033B, 3.1 Requirements: The levels are determined per J-STD-020 and/or per JESD22-A113 plus reliability testing. Look here: http://www.jedec.org/download/search/jstd020c.pdf
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