Electronics Forum | Sat Dec 11 11:01:11 EST 1999 | Mark W.
In answer to your question no. Fiducials should always be as far apart from each other in both directions (X,Y) as possible. This will allow ANY placement machine to calculate the EXACT location and rotation of the PCB, and therefore correct the moun
Electronics Forum | Mon Dec 13 21:05:34 EST 1999 | Curtis T.
Ken, we always build the bottom side of the board first. That also insures that there isn't any problems with the actives being reflowed and falling off in the glues curing process. By the way we do both paste and glue on the bottom of the boards t
Electronics Forum | Tue Dec 07 21:38:54 EST 1999 | Sosina outry
Correct me if i am mistaken, I always hear the circle is better fid mark than any. Due to shape and dimension, one value of diameter is needed while square you need width and lenght. beside whichever fid mark, the accuracy will base on cad and techn
Electronics Forum | Fri Dec 10 09:12:16 EST 1999 | Dave F
Boca: I appreciate your point, but that's surely not what the 60+% percent of our female assemblers think!!! Why make someone feel bad when there's no point, aside from learning a new way of doing something? I'm not sure that it makes any less of
Electronics Forum | Tue Nov 30 15:38:27 EST 1999 | Wendy Casker
Hi, I am looking for land patterns for 0612 and 0508 chip capacitors. Because they are not standard (yet) package sizes, i am having trouble finding a standard land pattern. (If you don't know what these are, picture a 1206 or an 0805 with the te
Electronics Forum | Tue Nov 30 12:02:02 EST 1999 | Steve
Hello All, We assemble boards which are small in size. We use nests for support when screen printing the boards. The nest gives support along the edges of the board. However we are bringing in a new product which has components very close to one edg
Electronics Forum | Wed Nov 24 08:44:00 EST 1999 | Chris Jackson
I have a PCB that I am looking to do selective soldering. I am looking at several systems (IE Seho, Pillarhouse, Premier Tool Works, wave pallets). The board is mixed SMT/PTH, but only has SMT on topside. It has 4 PTH(2 leads ea)components (.030 lea
Electronics Forum | Wed Nov 24 13:46:23 EST 1999 | STIMP
HI, I BELIEVE LOOKING TOWARDS MACHANICAL PROBLEMS WANT RESOLVE YOUR PROBLEMS.IT SOUNDS MORE LIKE A SOFTWARE OR MAYBE EVEN YOUR CARD GOING BAD. A MACHINE OF ANY BRAND DOES WHAT YOUR PROGRAM TELLS IT TO.IF YOUR PROGRAM SAYS PULL FROM DEVICE 7 AND YO
Electronics Forum | Fri Nov 19 11:07:17 EST 1999 | Bob Smith
Hi John, I don't know of any posters etc. but specs. are available free on-line at www.jedec.com for classification, time out of packaging before baking is required, bake times & temperatures. My understanding is that it only causes a problem if th
Electronics Forum | Sat Nov 13 08:16:16 EST 1999 | Chris Jackson
I am interested in discussing AOI. I am looking at introducing a system to a new SMT line. I am very interested in hearing from someone with MVP, MVT, Kestra, and CRTechnologies. The combo of x-ray and 2D inspecion that CRTechnologies offers is very
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