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
Electronics Forum | Fri Feb 10 12:21:20 EST 2023 | youngbuck
Also, tried swapping the Servo card. X7 which is the Rising table servo motor card, swapped with X8,9,10 which are all the same and same result.
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.
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
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
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
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
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. | | | | | | | | | |
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
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
