Electronics Forum | Thu Jun 25 21:13:11 EDT 1998 | Phillip Hunter
| looking for help with fine-pitch printing for what would be the best settings for printing speed, squeegee pressure, seperation speed. | thanks for you time Print speed is determined by your aperture dimensions, paste viscosity type of blade (metal
Electronics Forum | Thu Dec 16 15:00:20 EST 2004 | glaucon
Simple differences. Both processes require a very similar machine platform, controlled motion, vision fiducial recognition and alignment of a substrate (PCB or hybrid ceramic) to the "image", the image being either a stencil (hence stencil printing)
Electronics Forum | Tue Jul 16 07:59:14 EDT 2002 | hany_khoga
Hello there: 1- I know someone who diluted expired solder paste, which obviously lost its tackiness using Isopropanol. The paste was expired by more than 6monthes but after dilution I saw by myself the paste has retrieved its tackiness. The amazing
Electronics Forum | Mon Feb 22 14:21:14 EST 1999 | Rick Wyman
| | Hey all- | | | | My question is this: My stencil printer operator has said that he has to | | wipe our 6-mil stencil each pass to get the paste in the 20-mill pitch | | aperatures for a QFP to release well. We are using Amtech NC-559 type 3 |
Electronics Forum | Fri Dec 28 17:44:41 EST 2007 | flipit
Back in the mid 90s I used an SVS 3D solder paste inspection system. We used it as a stand along unit but it was an inline model. We would bring printed PCBs off the Dek 265 solder printers and check every 5 or 10 printed panels. They almost alway
Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef
Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c
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 | Wed Mar 27 16:54:47 EST 2002 | davef
STARTING RANGES * Pressure � 1 pound/inch of blade (metal); 1.6-3 pound/inch (plastic) * Speed - 0.5 to 3 inch per sec [for standard pitch]; 0.5 to 1 inch per sec [for fine pitch] Your paste supplier�s recommendation is a good place to start. * Sepa
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
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