Electronics Forum | Wed Sep 13 20:58:50 EDT 2000 | Dave F
If you don't know what you have, how the blank are we sposed to tell you? Try your local fab. CEM1 - Opaque tan CEM3 - Translucent FR2 - Opaque brown FR3 - Opaque cream FR4 - Translucent FR5 - Translucent FR6 - Opaque white G10 - Translucent G11 -
Electronics Forum | Wed Dec 08 17:11:24 EST 2004 | SEvers
I am very familliar with various lasers and cutting technologies. This is probably the only laser technology that has a chance to do what you are after on FR-4 G10, G11 etc and not burn. It's new ground for them and I'll bet the system is not tooled
Electronics Forum | Mon Apr 25 22:56:44 EDT 2005 | davef
rush316 First, no one stated that PBB and/or PCBE are in FR4. FR4 contain tetra-bromo-bisphenol A [TBBA]. Second, there are classes [and grades] of dielectric materials used in fabricating printed circuit boards. Grades, NEMA LI-1. From these gr
Electronics Forum | Thu Apr 09 15:31:05 EDT 2020 | kumarb
Thank you for the replies. Neither the analog dimmable ballast (1-10V) nor the dimmable T5 2G11 socket bulbs have been fun to source. After countless hours of searching, believe that the Ebay listing here (Philips) is compatible: https://www.ebay.co
Electronics Forum | Thu May 09 17:21:39 EDT 2002 | davef
In describing a bare board, you need to talk about base, laminate, and conductive materials. Common laminate materials are: * Glass fabric * Cotton fabric * Paper Common NEMA grades of technical laminates are: * Glass Fabric Grades: G3, G7, G10,
Electronics Forum | Wed Jul 18 08:00:48 EDT 2001 | davef
250C flass transition temperature - M = coloring agent or opacifier added to F resin with 110-150C glass transition temperature - N = natural color of resin - P = coloring agent or opacifier added to resin - T = natural color F resin blended with
Electronics Forum | Wed Nov 01 22:58:31 EST 2006 | davef
Durastone is commonly used in flooring. Durostone is a proprietary product of R�chling Permali Composites SA [be aware this is a French company] that many use for reflow and SMT process pallets. Suppliers are: * R�chling Permali Composites SA; Canog
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