Electronics Forum: fab and notes (Page 1 of 13)

Sample assembly notes

Electronics Forum | Fri May 27 14:00:57 EDT 2022 | SMTA-64387182

I am looking for some sample assembly notes for a 2-sided PCBA IPC Class 2. Notes to put on my assembly drawing. Not the PCB fab drawing. Thanks, Joe

Re: PCB fab supplier supplier/evaluation

Electronics Forum | Sun Aug 08 11:15:32 EDT 1999 | Earl Moon

| | Mike, | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo

Re: Geometric Dimensioning and Tolerancing

Electronics Forum | Sun Jun 07 02:06:26 EDT 1998 | Earl Moon

| Earl, | As always, I am interested in what you have to say, but I am still a little vague on your application of ANSI Y14.5 as it relates to the manufacturability of an assembled printed circuit board. Are you implying that component placement coor

Re: Land patterns for 0612 and 0508 capacitors

Electronics Forum | Tue Nov 30 21:23:55 EST 1999 | cklau

hello; When we are doing component land pattern design , one thing will always be in our mind; that is the basic criteria or common land pattern design guideline for reflow and flow solder assemblies. For basic fomula in calculating resistors are:

X-Outs and Panel Arrays

Electronics Forum | Wed May 14 11:35:04 EDT 2008 | scottefiske

We produce High mix very low volume Military assemblies. So a typical order mya be for 50 pcb's, at a 5 up array. Do you work in the fab shop? Scott

wave pallets and titanium

Electronics Forum | Thu Nov 15 12:11:40 EST 2007 | George

I use Pentagon EMS (503) 924-2747 with Chad Haima. Note: I do not get a penny for referals. I just like the service, super fast, high quality and excellent customer service. I have worked with them for about 4 years. Thanks, George

Material Ageing and Storage

Electronics Forum | Thu Feb 22 21:01:12 EST 2001 | davef

We don't do this, but if we had to and lacking better advice, for all components I�d dry pack according to J-STD-033, store in a low temperature and humidity controlled environment [maybe using some semicon fab inert storage cabinets], review the eff

Stencil cleanliness and inspection

Electronics Forum | Thu Jun 07 16:33:22 EDT 2001 | davef

I too know of no product like you desire, but I have a lead for you to follow that might get you further than you're getting now. Call Lumonics [Lumonics, 130 Lombard St, Oxnard, CA 93030 805.485.5559 fax3335 http://www.gsilumonics.com]. They ma

Gold and Palladium Plating

Electronics Forum | Fri May 17 10:53:15 EDT 2013 | davef

ENEPIG or Imm Pd? Concerns about palladium as a solderability protection are: * Palladium is more difficult to process in fab than gold * Palladium solder alloys can be brittle, similar to gold, without proper soldering process and/or specification/

AXI and AOI

Electronics Forum | Tue Jul 09 10:15:17 EDT 2002 | msjohnston

Cal, Our parent company is a FAB and they are about to release a new generation of parts. Usually the die is qualified in a simple TSOP form factor. This time the first product quals will take place in the BGA and CSP from factors rather than the t

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