Electronics Forum | Fri Aug 13 13:38:23 EDT 1999 | Bian Wycoff
| Has anybody adopted the method of stencil printing with the board at a 45 degree angle to the squeegee blade? What are the benefits and drawbacks? I've heard you get better fine pitch results. | | TX | Mark | I have used thetechnique extensiv
Electronics Forum | Fri Aug 13 09:51:25 EDT 1999 | Dave F
| Ladies and Gentlemen, | | As a newly appointed DFM/CE "guru" here, one of my responsibilities has become repair (of course). As I have some knowledge of BGA repair/rework using semi-automated equipment, it naturally follows I would hav tremendous
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 | Thu Aug 19 19:10:31 EDT 1999 | Brian Wycoff
| | | | Hello, | | | | | | | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | | | | | | | B.Regards, | | | | Felix | | | | | | | I have a proce
Electronics Forum | Tue Aug 10 13:05:57 EDT 1999 | ScottM
| Folk's, | | I'm looking for some helpful suggestions for reworking wave soldered bottomside components that have been glued. | I'm not a fan of the twist and break approach and as some of them either have a double dot or a slot configuration this
Electronics Forum | Wed Aug 18 15:52:21 EDT 1999 | DENNIS FOWLER
| | | Gian | | | | | | You alarm me when you talk of white residues in a "no-clean" process. This should not happen. It sounds like you have compatibility problems between different residues and/or a poorly polymerised solder mask. | | | | | | Ther
Electronics Forum | Fri Aug 06 08:45:32 EDT 1999 | Dave F
| Folks, | | Probably not the forum, but forgive me as I am but a dog as described by Justin and admitted by me. However, I am looking for a previously owned Camalot 1818 "goop" dispensing system for selective wave soldering operations. Anyone knowi
Electronics Forum | Fri Aug 06 06:13:37 EDT 1999 | Wolfgang Busko
| | | | | | | | | | | | | | | | | | Hello, | | | | | If you are using no-clean and they are entrapped in the flux it is also IPC accepted but i havent found a customer yet who agrees with that. Im sure you have checked your profile. I had the same
Electronics Forum | Fri Aug 06 10:06:34 EDT 1999 | Peter Brant
| | | I need to find quality benchtop develop, strip, & etch equipment. | | | Any ideas? | | try LPKF in Beaverton, Or. 503/634-0604 or the link below. I haven't used their eq so this is not an endorsement | | John Thorup | | let's try that link a
Electronics Forum | Wed Aug 04 08:08:10 EDT 1999 | Paul O.
| | We're getting field failures in a high impedance portion of the circuit. Think the unpopulated pc card has contaminates because we were able to grow dendrites by applying a 9 volt battery across the suspected pad, placed a drop of de-ionized wat
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