Electronics Forum | Wed Mar 06 12:28:45 EST 2002 | kg
How could you know if your printing process is capable or in control if you don't have a print measurement tool? Still, I suspect it's a myth that 60% of SMT defects are screening defects. Are there data behind these figures or do we just continue
Electronics Forum | Tue Jan 13 19:16:03 EST 2004 | pjc
Dedicated tooling uses what MPM calls an "H" tower. You mount the board support plate (dedicated tooling) on top of the H tower. If boards are only single-sided SMT, meaning only components on one side, the board support plate is flat with vacuum hol
Electronics Forum | Thu Apr 21 12:07:30 EDT 2005 | ddennison
Here is the name of another good company to contact: Production Solutions, Inc. 12675 Danielson Court Suite # 403 Poway, CA 92064 P: 858-486-1088 F: 856-486-9178 Contact: Doug Farlow E-mail: dfarlow@production-solutions.com Web Site: http://ww
Electronics Forum | Wed Feb 03 15:42:31 EST 2016 | tombstonesmt
The way I view SPI is that is simply a tool. A tool to gather data to improve printing and prevent failures down the line due to screen printer anomalies. They can all inspect paste as necessary, work in closed loop with screen printer and provide a
Electronics Forum | Fri Dec 06 09:47:31 EST 2002 | Claude_Couture
Printing: use rigid carrier plate to hold and support your flexible PCB. tooling holes in PCB to position on the plate, two-sided tape to hold PCB in place. Oven: same carrier plate, use capton tape or clamps to hold PCB in place. I believe some in
Electronics Forum | Mon Apr 18 09:52:36 EDT 2005 | pjc
FormFlex and the GridLok system will not work on a semi-automatic printer. They were designed for fully automatic machines. The print table is very shallow on the DEK 248, SMTechs and MPM SPM, UP100 and MicroFlex. DEK should have magnetic base suppor
Electronics Forum | Fri Aug 04 14:44:23 EDT 2006 | bvdb
RoHS actually allows for up to 0.1% lead in solder. Unless you are really sloppy at cleaning your tools it would be very unlikely that you would get 0.1% lead into your lead-free process (remember leaded solder is only about 50% lead). Regards, Ber
Electronics Forum | Fri Mar 16 13:47:56 EDT 2007 | ck_the_flip
Another thing to look out for... Flex circuits, if not fixtured properly tend to move around and, well, "flex" during screen printing. At another place I worked, we fixtured the flex circuit on a SMT pallet on the corner tooling pins to "stretch"
Electronics Forum | Thu Jul 22 17:39:58 EDT 2021 | proceng1
We do use a company for custom fixtures, but we also make some in house. The biggest hurdle for a board that requires a fixture to go through printing and SMT is that the board has to be the tallest thing. So any hold downs or locating hardware has
Electronics Forum | Wed May 22 21:20:31 EDT 2019 | davef
Not gone, just renamed. ASM SMT Solutions segment is made up of SMT Printing Solutions (DEK) and SMT Placement Solutions (SIPLACE). Suwanee, Georgia, USA [https://smtnet.com/company/index.cfm?fuseaction=product_catalog&company_i
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