Electronics Forum | Wed Mar 27 12:37:12 EST 2002 | jax
Barry, If you are looking to set up a documented process with set parameters you might think about performing a DOE based on the parameters you can control or change. With any measurement device you should be able to log the info gathered so you ca
Electronics Forum | Wed Mar 27 10:32:29 EST 2002 | barryg
hello evryone. I am rleatively new to smt production. Though we have been successfully running pcb assy's and getting very good solder quality we are trying to get some proccess control parameters set up for our printing process. We have a semiauto s
Electronics Forum | Thu Aug 12 05:06:12 EDT 1999 | FMung
Hello, Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... B.Regards, Felix
Electronics Forum | Mon Jan 20 22:39:46 EST 2003 | davef
Hi Stevo, Most paste suppliers say something like, �above 183*C for 45 to 60 seconds.� The problem we have with statements like that is that they seem to assume that the pads, component leads, and solder paste are all near eutectic 60/40 solder. A
Electronics Forum | Wed Jan 22 14:53:50 EST 2003 | MA/NY DDave
Hi I thought I would come back to this one for a second. Joe Fox above gave a nice concise note as to why you must raise the temp high enough above the soldering melting temp (liquidus) yet not too high. You want to go high enough for paste so tha
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 | Thu Aug 12 17:07:09 EDT 1999 | Brian Wycoff
| Hello, | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | B.Regards, | Felix | I have a process cause and effect diagram for the entire print
Electronics Forum | Fri Aug 13 00:05:12 EDT 1999 | Felix Mung
| | Hello, | | | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | | | B.Regards, | | Felix | | | I have a process cause and effect diagram for
Electronics Forum | Fri Aug 13 00:08:16 EDT 1999 | FMung
| | | Hello, | | | | | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | | | | | B.Regards, | | | Felix | | | | | I have a process cause and eff
Electronics Forum | Thu Aug 19 19:10:31 EDT 1999 | Brian Wycoff
| | | | Hello, | | | | | | | | Can any netters suggest what critical parameters should be considered & what are there assoicated impacts for a solder paste printing process ... | | | | | | | | B.Regards, | | | | Felix | | | | | | | I have a proce
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