Electronics Forum | Wed Sep 27 11:38:58 EDT 2006 | sliebl
What are you guys using for SMT Adhesive? When we started into SMT many years ago, we used a Loctite with a pneumatic pump. When we got into automated dispensing with our Contact 3S placement machine, we switched to Heraeus PD955M. It has worked very
Electronics Forum | Tue Feb 07 11:55:27 EST 2023 | tommy_magyar
What I would look at is the chemicals being used in the facility where the complaints are. Flux/flux gel, IPA, cleaning agents, etc. Perhaps you should limit the usage to certain people only, who would be trained how to properly use these. Something
Electronics Forum | Fri May 29 16:07:55 EDT 1998 | Steve Gregory
| | Thanks Steve- | Here is the whole story: | | The solder balls are appearing all over, similar to a | splatter. They are relatively small. We are using H-Technologies | S-HQ no-clean solder paste. The stencil is 6 mil and the boards | are ru
Electronics Forum | Tue Sep 07 15:28:13 EDT 1999 | Earl Moon
Listed below are the issues Viking has been experiencing since the installation of the Proflow Head: 1. After installing new 350mm Wiper foil with metal strip glued on it, It worked for about a week and suddenly metal stri
Electronics Forum | Wed Sep 08 08:25:26 EDT 1999 | Brad Kendall
Listed below are the issues Viking has been experiencing since the | installation of the Proflow Head: | 1. After installing new 350mm Wiper foil with metal | strip glued on it, It worked for about a week and suddenly meta
Electronics Forum | Mon Aug 07 10:22:13 EDT 2000 | genglish
Ramon, I have had experience in the problems you are witnessing. The problem can relate to a number of factors. Obviously the printing process is the first place to start your investigations, try looking at the stencil apertures for bleed under the
Electronics Forum | Tue Jun 13 21:57:01 EDT 2000 | Dave F
Todd: You say: "... solder masking between the lands of fine pitch components can cause stenciling problems and or manufacturing problems." I say: Fine pitch components without solder masking between the lands can cause stenciling problems and o
Electronics Forum | Sun Aug 02 06:54:26 EDT 1998 | Bob Willis
You may liketo contact Chemtech in the UK. http://chemteck.co.uk as they have a new hand book on stencils and a design guide due for release shortly there is also some stencil information as a survey on types and price on my web sites under surveys h
Electronics Forum | Wed Apr 08 05:41:37 EDT 1998 | Alan Pestell
We currently use the Loctite system of Glue/stencils and are getting very good results. You may still have a height problem is you solder resist is too thick. The UK sales person is Bob.goss@loctite-europe.com & he may give you more help. The only ot
Electronics Forum | Tue May 18 03:17:50 EDT 1999 | Philip B
| | Hi Guys, | | | | I am going to be graced with the good luck of processing microBGA's in the near future. A bit of a step forward from printing 20-mil pitch and wave soldering 0805's, wouldn't you say? | | | | So, any of you folks who have alre
