Electronics Forum: chemical (Page 1 of 79)

chemical etching

Electronics Forum | Wed Oct 16 01:28:45 EDT 2002 | redmary

during the failure analysis, how to etch the tin,nickle,and copper?

chemical etching

Electronics Forum | Thu Oct 17 23:25:53 EDT 2002 | redmary

We generally etch the copper back slightly using a 50/50 mix of 3% Hydrogen Peroxide and laboratory grade Ammonium Hydroxide. Swab for about 5 seconds, then rinse. and etch the tin in the solder to further delineate the intermetallic layer that shou

chemical etching

Electronics Forum | Wed Oct 16 13:16:11 EDT 2002 | davef

Hey Mar, Sounds serious!!! Poke around Buehler, Leco, or Struers Try IPC TM-650 Test Methods Manual: 2.3.6A Etching, Ammonium Persulfate Method - 7/75 2.3.7A Etching, Ferric Chloride Method - 7/75 Cupric Chloride Etching Method - 12/94

Wave solder claw/finger cleaning chemical

Electronics Forum | Wed Jun 09 15:09:29 EDT 2004 | dwoodrow

Does anyone out there use anything besides alcohol in their automatic claw/finger cleaners in their wave solder machines? We are nearing our VOC limit and are looking into other chemicals (VOC-free) for cleaning. Thanks David

Wave solder claw/finger cleaning chemical

Electronics Forum | Wed Jun 09 15:53:09 EDT 2004 | Ordie.

You might want to try Zestron. They make a lot of different cleaners. We use Zestron SD 300 if we clean a stencil by hand. It works great, a lot better than alcohol. Go to http://www.zestron.com. Hope this helps.

Earth Friendly Cleaning Chemical

Electronics Forum | Thu Dec 09 15:50:14 EST 2004 | grayman

Dave, We are using 2 parts of chemical today 1 for wash and the other 1 for rinse, but this is very expensive and time consuming as we have to make preparations for two chemicals. I believed that there are manufacturers of 1 part chemical use for

Common cleaning agent for Water soluble, No-Clean and RMA paste

Electronics Forum | Tue Oct 09 12:23:07 EDT 2001 | Mike Konrad

Hi Danial, Yes, you can use one cleaning chemistry for all paste types. There are many available chemistries from many manufacturers. The chemistries that I would recommend include: StencilWash Plus from Aqueous Technologies http://www.aqueouste

Board Cleaning

Electronics Forum | Wed Dec 05 17:48:58 EST 2001 | Mike Konrad

There are a few good de-fluxing chemicals and many more �not-so-good� de-fluxing chemicals. As a manufacturer of cleaning equipment, it is imperative that our customers use a de-fluxing chemical that: #1: Removes flux #2: Is environmentally safe

BGA function test

Electronics Forum | Wed Dec 22 22:43:16 EST 2004 | davef

Try: * Ito America * Hitachi Chemical * 3M * Sony Chemicals

Solvent for stencil cleaning

Electronics Forum | Wed Nov 09 07:22:28 EST 2005 | davef

No. Aqueous Technologies, Kyzen, Petroferm, Zestron, Alpha Metals and many more companies have tested their chemical for use with many different production materials and should be able to discuss the effectiveness of their chemical. Beyond that, ma

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