Electronics Forum | Fri Nov 13 12:08:46 EST 1998 | fraser
| | | I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | | | | | Fraser- | | | | We use polyimide stencils with great success for our prototype boards. They are cheaper and the acc
Electronics Forum | Fri Nov 13 14:43:36 EST 1998 | Dave F
| | | | I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | | | | | | | Fraser- | | | | | | We use polyimide stencils with great success for our prototype boards. They are cheaper a
Electronics Forum | Thu Apr 22 15:27:44 EDT 1999 | Hugh M
| | I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | | | You are hearing about polyimide as in polyimide film as Kapton (TM Dupont). This material is the stuff of flex and rigid/flex c
Electronics Forum | Sat Nov 14 08:00:34 EST 1998 | Earl Moon
| Also the preheating of the board is done to help evaporate any water/alcohol that is in the flux - water is a big problem in No-clean processes. From our experience, a temp range around 200f - no more than 220f is ideal for the bigger boards, but t
Electronics Forum | Wed Nov 11 06:59:20 EST 1998 | Jim Mitchell
Scott - Good to see things are going well for you. With regard to your comments, Quad has introduced a complete line of Semi-conductor/APT machines (Q Series) that support both SMT and Semi-conductor applications. The machines were introduced in 19
Electronics Forum | Wed Oct 21 09:43:40 EDT 1998 | Stefan Witte
You'll not find any solvent, which removes cured epoxy and not attack the board material as well. If there are traces underneath the surface mount components even mechanical removal of the epoxy may mess up your boards. As a mechanical tool I recomme
Electronics Forum | Fri Oct 16 09:00:47 EDT 1998 | Chrys
| I am trying to find information for one of our engineers on spray fluxing equipment. Years ago, I investigated these somewhat and now remember two suppliers -- Sonotek and AT&T. | | I was able to find information on Sonotek (http://www.sono-tek.c
Electronics Forum | Thu Oct 15 08:06:17 EDT 1998 | Sjef van Gastel
|John, Why do not you consider the Philips Powerline concept ? The Powerline consists of the combination of FCM and ACM. These 2 machines represent the best in class in SMD placement. The FCM can accomodate 96 8 mm tapefeeders, while the ACM can ac
Electronics Forum | Fri Oct 16 00:23:16 EDT 1998 | Jim McCarten
I do not think that the Mydata can pick from wafer or has the accuracy required (12 micron)! Am I missing something? | | I need to install some new lines for high mix low volume products in an already cramp building. Could someone share any info a
Electronics Forum | Fri Oct 16 21:33:51 EDT 1998 | Scott
| I do not think that the Mydata can pick from wafer or has the accuracy required (12 micron)! Am I missing something? I don't have personnal experience with flip chip but the next time you're at Nepcon ask Mydata to show you their demo board with
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