Electronics Forum | Fri Aug 18 03:34:20 EDT 2006 | ridzal
i want to know about some basic details of materials in pcb such as CEM, FR1, FR2, FR3 and XPC.The use, advantages and also disadvantages
Electronics Forum | Fri Aug 18 07:40:32 EDT 2006 | davef
There's a fair amount on the web about this. For instance: http://www.felsweb.com/lam_faq.htm
Electronics Forum | Tue Oct 07 12:32:39 EDT 2003 | Don Beane
I'm looking for the dielectric values of materials for flex, rigid and flex/rigid pcb construction. Has anyone put together tables for this information? Where can I find the information to figure out what dielectric resistances I need based on altitu
Electronics Forum | Mon Apr 12 11:32:47 EDT 2004 | Luis Lazcano
Can you share some information on the hazardous materials and cleaning details for your manufacturing processes, please ? These are the questions I need to ask you: 1. Do you use brominated fire retardant in PWB material? If not, what other type
Electronics Forum | Wed Jan 30 09:10:48 EST 2002 | bob_smith
Hi Dave, Sorry about that. Specifically, I am referring to radial leads on a crystal. The leads are supposed to be gold plated but only 1/2 to 2/3 of the lead is plated. We bend the lead to form a foot which is soldered to a pad on the PCB. Normally
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 | Thu May 11 06:33:48 EDT 2000 | Cecep Wahyu
Dear, Give me information about Processing of Platting Circuits Board Sincerely, Cecep Wahyu
Electronics Forum | Wed May 10 22:58:52 EDT 2000 | Dave F
Michael: We all make choices. A first pass at yours is: Resin Tg�C Cost FR4 125 1 Tera Functional 135 1.1 Multi Functional 180 1.2 BT Epoxy Blend 210 1.5 Cyanate Ester 250 2 Polyimide 280 3 It's unclear about your meaning of "compat
Electronics Forum | Thu May 11 21:15:01 EDT 2000 | Dave F
Cecep Wahyu: A fairly broad topic for an online forum, don�t you think? 1 People write books on plating. Buy one: "Electroplating: Fundamentals of Surface Finishing" Lowenheim, FA (0070388369) "Graham's Electroplating Engineering Handbook" 4Ed, Dur
Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
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