Electronics Forum | Mon Jun 11 16:40:17 EDT 2007 | mlb
Dear GR, I represent Kyzen Corporation and would like to address a couple points in your message. Both Kyzen and Zestron are global suppliers of engineered cleaning fluids for removing flux residues from electronic assemblies. Aqueous cleaning fl
Electronics Forum | Tue Mar 31 12:44:20 EST 1998 | JoSi
= 20 Mils ), one sided reflowed MLB ? For exempel for defects like: -missing components -misplaced component -wrong component -etc Brs, JoSi
Electronics Forum | Thu Jan 03 03:55:29 EST 2002 | Hany_khoga
Thanks Dave , but what is meant by Tg & MLB ? Hany
Electronics Forum | Tue Mar 03 13:04:36 EST 1998 | tom lambert, component engineer
We have been told that we should bakeout FR4 boards prior to assesmbly - i gather from your discussion that you disagree - any details will be sincerely appreciated. Regards.
Electronics Forum | Sun Jul 24 07:03:33 EDT 2005 | davef
Warpage problem causes * MLB constructions (not homogeneous or unbalanced - too resin rich or poor) * Supplier process capabilities (lamination cycles) * Material selections (usually cheap and dirty), etc.
Electronics Forum | Thu Jun 21 18:20:25 EDT 2018 | vinitam
Hello, My company manufactures MLB's and is currently experiences so many voids due to a mistake in direct metallization (shadow line). We have tried testing every chemical component in the line and every possible maintenance. The scrap rate is goi
Electronics Forum | Mon Jun 07 15:11:43 EDT 1999 | Earl Moon
| | | | Where I can find some informations about repairing of SMT boards? | | | | | | | | Thanks | | | | | | | | Marcos | | | | | | | A first place to start is IPC's 7711 and 7721 encompasing repair, modification, and rework procedures. | | | |
Electronics Forum | Thu Nov 19 15:44:34 EST 1998 | Earl Moon
| We are investigating purchasing boards off-shore (Topsearch). Part of their process is to punch the matrix instead of router them. These boards are mixed technology. Is anyone aware of difficulity processing punched boards? | Thanks, | Mike | Big
Electronics Forum | Fri Mar 06 12:54:37 EST 1998 | Earl Moon
| We have been told that we should bakeout FR4 boards prior to assesmbly - i gather from your discussion that you disagree - any details will be sincerely appreciated. Regards. Please bake. I agree. Let me know how we have a disagreement.
Electronics Forum | Thu Jan 03 06:45:42 EST 2002 | Scott Davies
Hany, Tg is "Glass Transition Temperature". For an informative explanation of what this is, take a look at; http://www.psrc.usm.edu/macrog/tg.htm MLB = Multi Layered Board Does the board which you have the problem with only pass through the wave
