Electronics Forum | Tue May 07 02:58:27 EDT 2002 | dwoon
Hi, We are looking for some measuring machines to evaluate the ability of a SMT placement machine to produce quality. We will mount some dummy components on a glass plate and then insert the assembly into the measuring system which can measure the
Electronics Forum | Wed May 08 23:19:12 EDT 2002 | Jones
We currently use the Mitutoyo vision measuring machine Model #qv202-pr05f. We use it as a tool for measuring placement accuracy on both our chipshooters and glue machines. It also has the ability to check the glue dots for accurate sizing. As far as
Electronics Forum | Mon Nov 11 13:46:43 EST 2002 | ksfacinelli
I have a interesting problem. I have a client that would like us to build 15-20 prototypes of a fairly complex design that contains a Enplas OTB-289-0.8 BGA socket. The problem I have is the customer does not have enough sockets and is asking if we
Electronics Forum | Wed Feb 05 11:38:46 EST 2003 | Stephen
Don't forget placement. I"ve seen chips broken when they are being placed because they were thicker than the parts data used for them. This is not an issue on Panasonic machines because they measure the thickness of parts but I have seen it happen
Electronics Forum | Tue Mar 04 10:50:25 EST 2003 | ggspook
Hi Mike Interested on your thoughts about (Pam) Placement Accuracy Measurement I am looking into establishing Accurate repeatability of my equipment we check our calibrations Regular and the calibrations are in spec but this does not guarantee
Electronics Forum | Thu Mar 06 09:34:56 EST 2003 | msivigny
Hello Joseph, I'll be honest, I'm finding it a bit difficult to understand and visualize the complete scenario. If this component is designed for surface mount placement into a slot on a PCB, then why does it even need support from the bottom side? I
Electronics Forum | Tue Mar 18 16:41:04 EST 2003 | russ
Here is what I have been finding lately. We switched to a 22mil square pad on 40 mil centers (from the IPC "75/25"). ALL OF OUR TOMBSTONES HAVE GONE AWAY! (at least for now) we did not change profiles, paste, or any other parameter. Obviously placem
Electronics Forum | Wed Aug 20 17:25:02 EDT 2003 | Dean
Coincidence? I just finished a glass calibration this morning on a P&P machine. Excellent tool for precision calibration. Takes the guess work out of the process. I would disagree with Cal's assessment. His calibration methods may work to suit h
Electronics Forum | Mon Dec 15 22:05:02 EST 2003 | Sam
hi Liang, We had the same problem like you before, it happened during starts up the machine (S13) and run the production for the first or second board. We also replaced the 2/2-way microvalve of placement circuit. The problem had solved at the begini
Electronics Forum | Sun Oct 31 17:36:44 EST 2004 | Ian
GerberGrab does exactly this, and it's low cost, and you can use it for a month for free. It is a sophisticated but easy to use reverse engineering tool which will automatically generate top / bottom BOMs with placement and rotation after teaching of
