Electronics Forum | Wed Dec 13 13:42:57 EST 2000 | Mike Ihm
The dielectic absorption characteristic of printed circuit board materials is usually not listed on the manufacturers spec. sheets. Can anyone point me in a direction to help determine which laminate materials might exhibit better dielectric absorpt
Electronics Forum | Mon Feb 05 09:21:22 EST 2001 | pteerink
Talking about delamination...... I have a customer requesting info about the max temperature ratings for FR4. Can anyone point me to a good source? ( and yes, I HAVE checked the archives, to no avail.....) Phil
Electronics Forum | Thu Oct 26 14:41:33 EDT 2000 | Derek Vanditmars
We are planning on replacing a SMT 100Pin QFP with a COB module that will have two dies that are functionaly equivalent to the old part that will not be available. Questions: 1)Suggestions on substrate material FR-4 or something better? 2)Are there d
Electronics Forum | Tue Sep 05 04:19:23 EDT 2000 | P.GERARDIN
We intend to promote the new PCB cleaning process with acqueous chemistry , but we face with an important demand : Do we have to dry the pcb after ? Wich is the treshold humidity content to avoid any risk for FR4 material ? Regards Pascal
Electronics Forum | Wed Jul 19 11:06:42 EDT 2000 | polymer
Where can I find laminates containing non-halogenated PCB? I'm especially interested in FR-4 and CEM-3, 1.6 mm 25um. Thanks in advance! Dr. Lennart Johansson Polymer Support
Electronics Forum | Wed May 17 11:00:00 EDT 2000 | emmanuel
Has somebody yet process pcb (FR4) with a thickness of 0.8 mm ? Thank you for all kind of responses.
Electronics Forum | Wed May 10 16:49:14 EDT 2000 | Michael Parker
I would like informnation regarding this high heat withstanding type material for PCB, also any other types that are compatible. We currently use FR4 but have an application that may require most advanced composition.
Electronics Forum | Tue Mar 21 20:37:51 EST 2000 | Dave F
Charlie: I�d plan never bake boards. Check the SMTnet Archives. Dave F
Electronics Forum | Thu Oct 26 12:27:40 EDT 2000 | Dave Cunningham
What guidelines would you suggest for an assembly house concerning the baking of bare PCB's (assume FR4) and flexes/rigid-flexes before assembly.
Electronics Forum | Thu Jul 20 14:25:03 EDT 2000 | Bob Willis
Better design for manufacture Better education for engineers in manufacture at college and university Realising that there is just so far you can push FR4 laminate Finding a way of making all the knowledge in our industry available to those future en
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