Electronics Forum | Mon May 30 06:36:16 EDT 2011 | mbnetto
This is a requested point from some customers. It's part of the audit check points. But I agree it´s important for the process. You can garantee the stencil is in a good condition after many time using it. If your stencil looses the tension, you can
Electronics Forum | Tue May 31 08:51:26 EDT 2011 | kahrpr
I also never heard of that. Even if you measured the stencil tension what would be the spec be and how would that even relate to quality. Other than the stencil just flopping around I doubt that minor changes in screen tension are going to change any
Electronics Forum | Wed Jun 01 01:08:43 EDT 2011 | boardhouse
Hi Aj, for the most part we have gotten away from calling out specific material and instead calling out IPC4101 back slashes to needed requirements. But if you are just looking for what most domestic shops have switch to you would be looking at 370
Electronics Forum | Tue May 31 10:58:23 EDT 2011 | killa12356
This is probably a stupid question but how come it is so hard to find moisture sensitivity levels from some manufacturers. Data sheets don't show this information.Is there any easy way of finding this out other than contacting the manufacturer or doi
Electronics Forum | Fri Jun 03 05:38:54 EDT 2011 | grahamcooper22
Ideally the MSL should be recorded on the label on the DRY PACK that you receive the devices in....that's the protocol the device manufacturers / distributors should use to help your goods in and shop floor personnel know which are/are not moisture
Electronics Forum | Tue May 31 15:29:09 EDT 2011 | leemeyer
I have a QSP-2 which I assume is in the same family as the QSA-30. I compared the diagram that is in the service manual with a board from a 2-C and they appear to be the same. Your best bet would be to contact PPM at http://www.goppm.com. They shoul
Electronics Forum | Wed Jun 01 10:02:56 EDT 2011 | bobpan
Those cards are all different. The c-series stands alone by itself while a qsp2 and qsa-30 mount into a slot. They were all manufactured seperately for each machine. I would purchase a new refurbished one for the 2c machine and forget about the other
Electronics Forum | Wed Jun 01 00:25:28 EDT 2011 | alcatel
I have one pcb which has via holes on both solder pads of 0402 chips. Right now im using type 3 solder paste with 45 degree squeegee. and a lot of these chips are tombstoning. Im guessing with larger particle size of solder paste, the solder will
Electronics Forum | Wed Jun 01 10:33:18 EDT 2011 | tzhangaclara
Hello, Attached is the X-ray picture of a SMT transistor. Please give me your opinion whether this is a good solder or not. From my view, I did not see any solder in the middle pad. I feel it is a production problem. But someone told me unless you s
Electronics Forum | Thu Jun 02 13:32:05 EDT 2011 | davef
Melanie: We're with AVFOM. If you don't believe there is solder on the pads, use a beer can opener to pop the component off the board and you will have your answer. Easy-peasy. Who ever told you 'if there is solder, there is voids' in solder connect
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