Electronics Forum | Tue Jun 05 10:24:46 EDT 2007 | russ
De ionized is de-ionized. Contact your local water supplier such as culligan or whoever. They can give you the rundown on leasing or buying tanks, etc... Your cleaner will have to have some type of provision for adding external filtration/deioniza
Electronics Forum | Thu Aug 02 17:27:54 EDT 2007 | jmelson
This process is going to make conventional rework, and most mods and ECOs impossible. You might be able to make some changes by patching a component across the exposed pads, but most of the circuitry will be buried. You could, of course, make speci
Electronics Forum | Tue May 16 16:54:14 EDT 2000 | Ashok Dhawan
For a typical assembly facility ( where assembly of circuit cards and shelves is carried out), what are usual recommendation for : 1.Ambient conditions ( Temp and Relative Humidity) 2.Use of Smocks If humidity is less than 40%, what are special prov
Electronics Forum | Tue Apr 15 14:10:30 EDT 2003 | russ
here is how it is done. 1.Position the stencil in the machine. 2.Position the board onto the PCB tooling as close to being aligned with the stencil as you can. 3.Place mylar or some thin clear material over the board. your printer should have prov
Electronics Forum | Thu Apr 05 13:40:15 EDT 2007 | slthomas
"I just need better reasons than it [...] increases defect probability." If that's not enough, you have bigger problems. Have you seen any rework/repair that was generated by this handling gem? Does your company profess to build to IPC specificati
Electronics Forum | Fri Aug 04 15:45:27 EDT 2000 | John Thorup
Ditto to everything said. If everything in the process is correct you will have good success at 25 mil but it will take much care. I have done 20 mil on this type of printer but, as Steve says, I wouldn't want to on a daily basis. Those wipe-offs a
Electronics Forum | Tue Feb 01 12:02:56 EST 2000 | Mike Konrad
Your question may be answered in two parts. First, if you are using a water soluble (OA) paste, then water is an excellent �solvent�. Water, in one way or another, is used to clean all fluxes and pastes from PCB�s. In some cases, a chemical is add
Electronics Forum | Wed Dec 08 08:29:25 EST 2004 | davef
Se�or Tech, It would be a cool feature. The previous version of software used to administer the site had a provision that allowed imbedding a link in the posting. The software automatically pulled the link and posted the picture in the posting. S
Electronics Forum | Tue Jun 17 12:57:26 EDT 2008 | sleech
You are correct. For the 70 deg. C drying temperature to be effective, the relative humidity must be as near to zero as possible. A pulling a vacuum on the chamber is an inexprensive and reliable way to accomplish this. Contrary to some claims, our e
Electronics Forum | Thu May 01 12:28:56 EDT 2008 | petergog
what is the main concern about this reqirement? Why IPC-A-610c is revsised to this? IPC-A-610c said it is a defect.Solder touches the body of a plastic bodied component, eg SOICs and SOTs. But D version think it is acceptable. WHY? I thought "plasti
