Electronics Forum | Tue Oct 03 16:55:26 EDT 2000 | Chris
Does anyone have any recomendations for a NC flip chip attach flux? I have info from Indium and Kester. Who else makes a good flux for flip chip. I will be dispensing this flux using a doctor blade and rotating disk. I will then dip the flip chip
Electronics Forum | Sat Sep 30 12:14:32 EDT 2000 | jarnopy
Hi Maybe you have too small apertures in stencil. Good apertures size is 90% from pad. And one thing what you can try is that you cut your stencils(blades) aperture corners round (i mean like a oval). I hope that these advices can help you.
Electronics Forum | Thu Mar 22 16:19:40 EST 2001 | rwilliams
In regards to SMT adhesive application by stencil: Can anyone make any recommendations for: SMT Adhesive Material itself? Squeegee Blade Material? Stencil Material? Characteristics/Features of your Stencil? E.g., thickness, aperture ratios, etc... P
Electronics Forum | Fri Apr 20 11:05:23 EDT 2001 | gcs
Just a bullet! My results are, .005" stencil thickness should measure between .0055" - .006" if your pressure is correct, metal blades and snap-off is set up correctly. Do you have aperture reductions at the QFP locations "typicial industry standard
Electronics Forum | Tue May 01 15:39:34 EDT 2001 | blnorman
Anybody else out there using LR-737? How is it packaged? We're using it in Semco cartridges which include a dasher and stir rod (used because the paste and flux separate relatively easily). If you are using it in this configuration, do you get a p
Electronics Forum | Fri Feb 04 11:55:08 EST 2000 | Casimir Budzinski
I am looking for a faster way to trim component leads after wave solder. We now cut by hand, we have a Q-cuter but stoped using it the blades dulled quickly and left flags. we just got a cut and clinch locator and hope this will solve some of are pro
Electronics Forum | Tue Oct 23 20:12:48 EDT 2001 | dougk
Has anyone has experience using DEK's PumpPrint plastic stencils? We're starting to think about adhesive printing on THT populated boards. These stencils are thick and have undersides routed-out for clinched leads. But, they're plastic, and I'm worri
Electronics Forum | Thu Mar 14 10:51:12 EST 2002 | Chuck
I have a trace about 0.060' wide and I need to place a chip resister on it. * What is the best tool to use to cut the trace without slipping and scratching other traces or masking around it? I have used X-Acto #11,#16,#24 blades without success.
Electronics Forum | Fri Apr 12 13:22:49 EDT 2002 | mikecollier
I am currently exploring the option of screenprinting chipbonder for backside devices, mostly passives, 0603 and up. Does anyone have any experience with this? What are the pros/cons? What are the stencil design considerations? What about blades,
Electronics Forum | Tue Jul 16 21:35:48 EDT 2002 | davef
Reworking used paste. We do not rework or reuse used paste, because we have no experience reformulating paste or controlling the process. Squeegee life. We do not use squeegees with damaged blades. After that, if we can fixture them and get good
