Electronics Forum | Thu Jun 22 12:50:13 EDT 2000 | JAX
Igmar, Although I agree with Chrys that square is good,( Better volumn ) his explanation is not entirely correct. Heres a little insert from automata: With square apertures, solder paste is deposited at the center of the aperture. The center release
Electronics Forum | Fri Nov 19 22:31:30 EST 1999 | mark
Please be carefull handling these mechanical "foil only" systems. Many people have recieved serious cuts from the razor like foils. People to be concerned about include the reciever who takes it out of the box, the technician who has to mount it in a
Electronics Forum | Thu Sep 02 07:22:03 EDT 1999 | Earl Moon
| I'd like to know the advantages and disadvantages between the two. | | Thanks and regards, | | Both have their place. When using less fine pitch (.025" +) with fine pitch (.020" or less and BGA's) a .007" thick stencil may be used. This would re
Electronics Forum | Tue Jan 12 21:42:33 EST 1999 | Jon Medernach
What's important in stencil printing (which differs from screen printing) is providing a consistant volume of paste at each interconnect. The process window varies in proportion to the pitch. More than 60% of all defects are related to solder depos
Electronics Forum | Thu Feb 27 16:23:37 EST 2020 | dwl
http://www.circuitnet.com/news/uploads/3/Comparing-Soldering-Results-of-ENIG-and-EPIG-Post-Steam-Exposure.pdf Years ago, I battled this problem. ENIG PCBs reflowed with active WS flux. We built one side, and then washed them because they were going
Electronics Forum | Wed Dec 08 03:29:35 EST 2004 | seeker
try http://www.protec.jp STG-series tension gauge
Electronics Forum | Thu May 03 01:07:18 EDT 2007 | pavel_murtishev
Good morning, Worth system for 0.5mm or more pitch paste printing. For less pitch (uBGA, 0.4mm etc) framed stencil are preferred due to better tensioning. Main issue with them is handling. Stencil apertures that are used for tensioning might be easi
Electronics Forum | Mon Oct 25 11:15:10 EDT 2004 | davef
We assume by "stencil tension" you mean a measurement of how securely [or how tauntly] the stencil foil is held in the stencil frame. If so, we do not know how you would go about making your "30 ~ 50 N/cm" limit measurement when verifying conformanc
Electronics Forum | Sun Oct 24 20:12:05 EDT 2004 | Alex Yalung
Hi Everybody, Can someone help me regarding the stencil tension limit standard. We have now in our process 30 ~ 50 N/cm. Is that right? Thanks.
Electronics Forum | Wed Oct 27 16:12:36 EDT 2004 | Grayman
Hi ALL, Please confirm what measuring instrument do you use on stencil measurement. may we know the brand and website of this instrument.? We also need to measure the sencil tension but we do not have the instrument. Thank you, Arman
