Electronics Forum: 1601 (Page 2 of 2)

smt plant air quality

Electronics Forum | Tue Jun 05 20:25:27 EDT 2001 | davef

Sorry that I'm so late responding. Your new additon probably has 'backee stains on the floor already. Assuming we're talking about a fairly standard board assembly area, you don't need to specify air quality. 1 We specify * Particulate: Level to b

mechanical pelletizer

Electronics Forum | Tue May 24 18:00:42 EDT 2005 | davef

Pellet Fuels Institute; 1601 N. Kent Street, Suite 1001, Arlington, VA 22209; 703-522-6778 Fax 703-522-0548 pfimail@pelletheat.org http://www.pelletheat.org Pellet Fuels Institute represents the fuel preparation and clean burning technology of

PCB storage for lead Free

Electronics Forum | Tue Sep 16 20:41:41 EDT 2008 | davef

Q1. Can anyone tell me if there is a procedure for storing raw PCB's? A1. Yes, there are thousands of procedures for storing raw PCB. Why so many? Everyone writes their own procedure. Generally, they say: * Boards require individual separation and p

Questions About Risk of PCB Delamination as a Result of Moisture Build Up After Damage to Solder Mask

Electronics Forum | Tue Apr 23 15:36:27 EDT 2019 | davef

Josh, are you setting someone up with these questions? Answers to your questions related to the subject line follow: Q1. Does the Epoxy Solder Mask Layer of a PCB protect against moisture absorption? Is this a primary function of the solder mask?

PCB Baking after Wash

Electronics Forum | Thu Dec 04 09:49:11 EST 2008 | lazzara55

Dear Steven: Often the recommendations for baking prior to assembly are derived from various J-stds. But J's currently concern baking moisture out of components, and fail to address the moisture issues of the PCB. Because of that, there is the IPC D

Silver Immersion Finish - Moisture bake out guideline?

Electronics Forum | Fri Apr 23 17:59:54 EDT 2010 | hegemon

Therein lies the issue. Unknown storage conditions before we received the PCBs, date codes just expired (2 weeks), first article is de-lam city! Had a bad feeling about it. Have read some studies showing that there is no linear tie in of visual cha

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