Electronics Forum | Wed Sep 19 09:34:08 EDT 2001 | jschake
Both FormFlex and Grid-lok tooling systems are marketed as compliant tooling systems. Both are able to conform to the variations of the topography on the bottomside of a substrate to provide full support during printing of 2nd side assembly. The ba
Electronics Forum | Fri Jul 06 04:55:59 EDT 2012 | ccgooi
I have fabricated a artwork of stencil on a mylar and make comparison on PCB and Stencil in order to confirm if there is any PCB stretching at both end. The results are comparable for both stencil and PCB without any stretching . So,I assumed that th
Electronics Forum | Mon Aug 23 14:09:56 EDT 2010 | davef
Similar to Coop's comments, above ... Bridging: * Mis-placement: misplaced components, high placement force mushrooms paste * Too much paste: HASL thickness, lead finish, poor underside support, poor underside wipe frequency, printing with too lar
Electronics Forum | Mon Nov 05 16:54:00 EST 2007 | bbarton
There are several things that can be done to increase throughput on you screen printer, including the panelization of your bords as Steve & Hussman has pointed out. However that's of limited use if you have plenty of stock that is not panelized. That
Electronics Forum | Thu Jul 12 21:41:35 EDT 2001 | mugen
A) Questions: 1) What sort of pallet materials used? 2) what PCB thickness & LxW size? 3) what stencil type & thickness used? 4) what profile type used (peak deg-C)? 5) any peak Deg-C contraints for the components SMT onto the PCB? B) We use pallet
Electronics Forum | Tue Jan 30 09:31:08 EST 2007 | russ
these assemblies getting depaneled? ICT? any fixtures or anything? I would check your print and placement equipment and make sure there are no support issues as well. But I believe you mentioned fractures so that would be happening after the reflow
Electronics Forum | Thu Sep 16 07:07:34 EDT 2004 | C Lampron
Hello Chris, "It sticks up about 3/8" or so above the surface of the board." Is this over the ridgid portion of the PCB or in between? Is it possible to create a support fixture for printing that has relief that will allow the flex to bow downward i
Electronics Forum | Thu Aug 12 11:00:42 EDT 2010 | hegemon
Without seeing a picture, my first instinct would be first and foremost some fixturing that provides full support for your print process. After that, since you are citing bow and twist, consider that the fixturing might as well travel through the ov
Electronics Forum | Wed Jan 09 01:50:04 EST 2019 | sarason
Which country are located in, for instance I know a company near me that doe have one of these machines and a mydata line setup for small volume and prototyping. Second question why cant your substrate be supported and than printed. I have worked at
Electronics Forum | Mon Oct 10 17:47:10 EDT 2005 | jhagve
hi We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin
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