Electronics Forum: 9

Siplace X

Electronics Forum | Fri Aug 26 05:20:12 EDT 2016 | ariss_t

component jumping should not be the issue cause u can play with the indexing speed.. overall i give 9/10

Re: Metal Inspection Templates

Electronics Forum | Tue Sep 21 15:31:05 EDT 1999 | Hugh Martin

I like to see if anyone has any info or experinces with metal inspection templates in a post oven process. My problem issue is the ESD, since they are metal(12 mil stencil material). I welcome any comment. Thank you.

20 mil qfp bridging

Electronics Forum | Thu Aug 12 18:43:49 EDT 1999 | Wayne S.

Hello Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening 100 durometer blade. Getting "tails" on deposits. Trie

Re: 20 mil qfp bridging

Electronics Forum | Thu Aug 12 20:17:12 EDT 1999 | Kelly Morris

Hello Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening 100 durometer blade. Getting "tails" on deposi

Fine Pitch Printing Issues

Electronics Forum | Mon May 24 13:11:12 EDT 2010 | deanm

A guideline that I use agrees with MikeS: For 20mil pitch, apertures should be 9-10mil with a stencil thickness of 5-6mils to achieve an acceptable aspect ratio of 1.7. Just be sure you are using a mesh Type 3 or 4 solder paste. Otherwise, larger par

Excessive solder balls!

Electronics Forum | Fri Jul 08 12:53:56 EDT 2011 | markhoch

I concur with Mr. KaHrpr and Mr. Dave. Just because your measured profile falls in the middle of a process window doesn’t mean that you won’t ever have to analyze it. You may be 9/10ths of the way there, but running 25 miles won't win you a marathon

Re: Metal Inspection Templates

Electronics Forum | Wed Sep 22 17:21:45 EDT 1999 | Hugh Martin

I like to see if anyone has any info or experinces with metal inspection templates in a post oven process. My problem issue is the ESD, since they are metal(12 mil stencil material). I welcome any comment.

Re: 20 mil qfp bridging

Electronics Forum | Fri Aug 13 12:52:17 EDT 1999 | Steve Schrader

Hello Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening 100 durometer blade. Getting "tails" on deposi

Re: 20 mil qfp bridging

Electronics Forum | Tue Aug 17 10:41:13 EDT 1999 | Steve A

Wayne, Sounds like a gasketing problem. When the horizontal apertures are bleeding but not the vertical apertures. Could be poor underside support, HASL miniscus issues, masking or plugging issues, but what many people do not account for is that t

FS: Electrovert 500CLV (10 Zones) IR Oven

Electronics Forum | Thu Feb 19 15:17:52 EST 1998 | Bipin Napal

Available immediately. Call Bipin at 416-385-0855 Make: Electrovert Model: 500 CLV Electrical: 440V, 3Phase, 60HZ Manufacturing Date: Dec 22, 1992, and upgraded in 1994 Physical Size: Length 205.5�, Width 55� Heating Zones : 10 Upper & 10 Lo

  1 2 3 Next

9,10 searches for Companies, Equipment, Machines, Suppliers & Information