Electronics Forum | Wed Jan 26 21:23:51 EST 2000 | Dennis
Hello! all Will anybody give me advice for missing componets for 0402, 0603 R or C chips? I am not gonna tell you which machine I use, but from my experience, every p&p machine has possibility for missing component after placing 400 or more componen
Electronics Forum | Thu Sep 06 20:26:07 EDT 2001 | Eric
We see alot of missing component ( on/off ) after chip mounter, and had check on the component height, is correct. Nozzles had change, vaccume strong enough and table height. But we still have missing component.
Electronics Forum | Tue Nov 27 07:51:21 EST 2007 | shy
is there any gap between the pad and terminal if we place the glue? Btw, my practice to print solder pate then punch glue then PNP component and finally reflow. Also we find drop/missing chip after wave eventhough we glue the component.
Electronics Forum | Mon Sep 13 11:23:41 EDT 1999 | Bing Feng
Hi, Recently encountered missing components problem at the SMT process. Among 13 chip components from the same part number mounted on the board, only 4 ( located in a same row and next to each other) were missing after post reflow. Checked the pick
Electronics Forum | Fri Jun 22 03:11:53 EDT 2007 | vlazern
Our Heller oven is functioning well. However, we see defects from the oven, such as shifted coil inductor components, and missing chip components from time to time. When we re-scan the board at the AOI, the defect was not present at that stage,hence
Electronics Forum | Thu Jul 20 16:10:34 EDT 2000 | armintan
Hi Bob, From my memory about almost 4 yrs. ago, I remember we did something similar to this in Apple Computer Singapore. Process sequence are: Bottom Side Process: Print Solder Paste(Dek 265GS) Dispence Adhesive (Cam/Alot 3800) Place Components (
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 | Mon Sep 13 12:31:41 EDT 1999 | Wolfgang Busko
| Hi, | | Recently encountered missing components problem at the SMT process. | Among 13 chip components from the same part number mounted on the board, only 4 ( located in a same row and next to each other) were missing after post reflow. Checked t
Electronics Forum | Fri Sep 07 08:47:45 EDT 2001 | Hussman
Board support will almost always cause the part to be miss-mounted. The bouncing affect of the board can cause the part to bouce off the board. BUT, you never stated where the ends up or anything like that. Is the part on the board but just floppi
Electronics Forum | Sun Sep 09 14:34:50 EDT 2001 | darburch
Eric Whenever I see a board come out of the chipshooter missing parts the first thing to check is the support pins. However if you have checked table and part height I assume that you have also checked the pins. So the next thing to check is the vac
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