Electronics Forum | Mon Sep 06 20:18:37 EDT 2004 | charly
hi, we are running high mixed low volume here, and i encounter many pcb delam after reflow issue. here some doubt need ur advise: 1. actually, what is max temperature and duration can a bare PCB reflow without any quality problem? if i allow bare
Electronics Forum | Sat Aug 21 02:37:56 EDT 2010 | horvath83
What would You recommend? PCB has 5 medium sized lead BGA packages on one side and huge lead - free BGA. On the other side among other elements of course there are 5 big sized lead - free BGA Quad Gigabit Pulse transformers. PCB plating: Ni/Au.
Electronics Forum | Mon Feb 28 20:17:02 EST 2000 | Eldon Sanders
I need to side mount a standard HC-49/U crystal on a board using double sided foam tape. I am looking for a source for pre-cut foam tape. In prototype runs I have used 3M #4950 foam tape cut to size one at a time. But for production I want it pre-
Electronics Forum | Sun Feb 13 19:04:13 EST 2000 | Jackie Hsieh
First I'm a Taiwanese people so excuse my bad english writing. On my experience, The process of double side SMT procedure with two methods ---First one is appling the glue on the solder side, and placeing the R,C,L chips components on it.and 2nd one
Electronics Forum | Mon Dec 11 03:46:14 EST 2000 | JohnW
I have to say I've never heard of anything tombstoning over wave, I've seen issues where the glue dot is too high or off to one side creating a poorly seated component that has too big a gap between pad and endcap(and hence an open), but never a tomb
Electronics Forum | Mon Feb 28 20:17:02 EST 2000 | Eldon Sanders
I need to side mount a standard HC-49/U crystal on a board using double sided foam tape. I am looking for a source for pre-cut foam tape. In prototype runs I have used 3M #4950 foam tape cut to size one at a time. But for production I want it pre-
Electronics Forum | Mon Jun 18 10:14:30 EDT 2001 | surachai
HI ALL; I WOULD LIKE TO KNOW THAT ANYBODY CAN RUN GLUE PRINTING PROCESS WITH 0402 CHIP AND PASS THEM TO WAVE SOLDERING PROCESS ,PLEASE GIVE ME THE INFORMATION ABOUT THEM . 1)HOW WIDE OF APERTURE DO YOU OPEN ON YOUR STENCIL? 2)HOW MANY YIELD OF THIS P
Electronics Forum | Wed Nov 17 15:01:44 EST 1999 | Doug Philbrick
I am a Siemens person myself but you won't get 23", you can get 20 though and I believe you could feed in a 23" board length wise. If your parts fit in a 20" area 80F4 is the way I would go. My second choice would be MYdata. They are the large board
Electronics Forum | Mon Oct 04 11:28:46 EDT 1999 | Mark D.
Does anyone have a list of component types that can be put on the bottomside of a doublesided reflow board that will not fall off during the second pass (Or on the otherhand, a list of components that will fall off)? This would be a list of parts tha
Electronics Forum | Mon Oct 04 11:23:55 EDT 1999 | Mark D.
Does anyone have a list of component types that can be put on the bottomside of a doublesided reflow board that will not fall off during the second pass (Or on the otherhand, a list of components that will fall off)? This would be a list of parts tha
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