Electronics Forum | Mon Aug 18 10:42:04 EDT 2008 | floydf
We are in the process of preparing for a new board that requires paste in hole processing. The hole is a .020" via, and our customer wants it filled with solder, but not bulging past flush. For printers,we use a DEK 249 with a squeegee, and a DEK 260
Electronics Forum | Tue Apr 07 05:44:02 EDT 1998 | bob willis
If you want there is a video tape, CD ROM and report on the use of the technology available from my web site www.bobwillis.co.uk | | Hi all, | I would like to have some information regarding the paste in holes process.We are the Backplane manufact
Electronics Forum | Mon Aug 18 20:46:08 EDT 2008 | davef
Volume of paste = 2X volume of the hole Questions are: * Why does your customer want the hole filled with solder? * Would materials other than solder be acceptable? * We assume 0.020" is drill size. What is the finished size of the hole? * What is t
Electronics Forum | Tue Mar 17 09:06:25 EST 1998 | Justin Medernach
| | Hi all, | I would like to have some information regarding the paste in holes process.We are the Backplane manufacturing and dealing with lots of thick PCB and would like to change the processes from wave to paste in hole.Any feed back of info
Electronics Forum | Tue Mar 17 13:11:58 EST 1998 | ETS, LLC
ETS (Energy Technology Systems) is a manufacturer of Solder Reflow and Curing Ovens for the Electronics Industry. We offer a specially configured oven designed for processing of Pin in Paste processes as well as double sided mix technology boards. I
Electronics Forum | Mon Aug 18 11:57:37 EDT 2008 | dphilbrick
No I was actually thinking more on the lines of this. http://pcdandf.com/cms/content/view/3845/95/ I think if you try and put solder in the hole you will not have a flat or well filled hole in the end.
Electronics Forum | Mon Aug 18 14:38:51 EDT 2008 | floydf
Real Chunks, Does "aperture opening 100% same size as the via" mean, aperature the same size as the hole, or the barrel of the via. If that makes any sense. Thanks
Electronics Forum | Mon Aug 18 15:18:08 EDT 2008 | realchunks
Open the same size as the via's anular ring. Any slight off print will wet its way back into the via hole.
Electronics Forum | Mon Aug 18 15:09:36 EDT 2008 | pjc
Oops, I thought it was for components- not filling via holes. Yeah, getting it fab'd in would be the way to go I would think.
Electronics Forum | Mon Aug 18 11:20:08 EDT 2008 | pjc
Stencil apertures are cut to deposit solderpaste onto the annular ring, provided its wide enough. Then you can place a solder preform if needed to ensure there is enough solder to fill the barrel. Here is some information on solder preforms: http://
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