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 | Wed Aug 12 04:52:54 EDT 2009 | sachu_70
A client document mentions the following: "PCBA to comply with IPC class-2 guidelines, and performance grade 2 for components." What does "performance grade 2 for components" mean? Would appreciate your help.
Electronics Forum | Fri Jul 16 22:22:12 EDT 1999 | Barden
My wavesoldering machine is equipped with Titanium finger. What composition of Titanium alloy used ? Any grade difference, and which is the best grade for long life ? An info or website concerning it.
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 | Tue Feb 24 18:04:22 EST 2004 | adlsmt
Im using Hi-Grade 1075 now. Is the 3541 a no-clean?
Electronics Forum | Thu Jan 27 01:21:48 EST 2011 | eliezerk
How can I print two various heights of solder paste on the same board , no space for graded stencil
Electronics Forum | Wed Sep 25 20:23:44 EDT 2002 | davef
Federal Specification GGG-P-463c "Granite Surface Plates" defines the three standard grades of tolerance for surface plates as follows: * AA - Laboratory Grade: For high precision operations in consistent temperature gauging rooms and metrology depa
Electronics Forum | Fri Jul 16 22:55:17 EDT 1999 | Vic Lau
| My wavesoldering machine is equipped with Titanium finger. What composition of Titanium alloy used ? Any grade difference, and which is the best grade for long life ? An info or website concerning it. Dear Barden, Sorry, I am not familiar with
Electronics Forum | Wed Feb 28 11:10:14 EST 2001 | Andy L
Binks does not build the Z-6-434 spray gun anymore, you will have to up-grade to the Binks Model 460. It works as well as the other type if not better.
Electronics Forum | Mon Apr 02 09:42:35 EDT 2001 | davef
Check "Chapter 5: Punching Grade Of Copper Laminates" by RJ Konsowitz in "Printed Circuits Materials Handbook" edited by MW Jawitz
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