Electronics Forum | Thu Jan 15 10:08:54 EST 2004 | ADAM
Guys Does anyone have any design rules for a 121 pin BGA . The pitch is 0.031 thou, the ball diameter is 0.0115 thou . I would like to know the following : Pad and via sizes/type on the bareboard ? Stencil thickness and aperture size/sytle ? Solder
Electronics Forum | Mon Jan 19 15:11:30 EST 2004 | cal
www.smema.org Machine Interface Standard http://www.smema.org/smema1.2.pdf Here is where you can find Machine cable/ connector information as well as timing and interface Schemetic. I would contact Universal for the machine interface connection spe
Electronics Forum | Wed Jan 21 10:35:14 EST 2004 | J Smithj
We have not checked the storage plate yet. I did send an email out to a couple of our other plants and discovered they too are seeing problems. The storage plate has come up in disscussions here. Since you mention it as well I think we should take a
Electronics Forum | Sun Jan 25 15:07:14 EST 2004 | davef
No one handling floppy disk should have a magnet on his or her wrist or in their work area. Furthermore, those with a magnetic paperclip holder on their desk should not allow floppy disks to come in close proximity to it. Since only technicians handl
Electronics Forum | Fri Jan 23 17:58:30 EST 2004 | Kevin
I have a very good condition copy of Manufacturing Techniques for Surface Mounted Assemblies for sale. If you are interested send me an e-mail offer and I'll send it to you right away. It is presently on sale from SMTA for $200+ Forgive me if this
Electronics Forum | Tue Jan 27 04:27:59 EST 2004 | loz
Thanks Dave, sounds totally plausible. In answer to Pete B's questions 1. Spot mask IS only being applied to earthing points, top and bottom side. 2. Unsure. Speaking to manufacturer they are telling me it is compatable. However data sheet is vague.
Electronics Forum | Mon Jan 26 11:10:56 EST 2004 | samaniegocesar
Hello to all of you, I'm running some small pcb's about 2.5x3.5 inches, can somebody tell me the zone temps and speed in meters/min that I have to use to get the best solder paste shine and best quality, is an oven of 8 zones. I apreciate your suppor
Electronics Forum | Tue Jan 27 11:40:35 EST 2004 | davef
Our design engineers were always a pain in the keester when they wanted to prototype a new board. They wanted to use a production oven. AND they wanted to use it NOW!!! [Like we have time for that foolishness.] So, we bought them a Oster toaste
Electronics Forum | Tue Jan 27 10:21:07 EST 2004 | ldavis
Has anyone recently compared Assembleon/Samsung/Mydata/Universal equipment for very high mix - low volume applications? We are currently evaluating these vendors and would like to hear from others who have had to make the same kind of decision. Any
Electronics Forum | Wed Jan 28 08:44:16 EST 2004 | mrmaint
We evaluated 3 of the top manuf. and assembleon gave us the best bang for the buck. We are a high mix low volume manuf. Their field service group is excellant and very knowledgable.They have alot of new options on their X-II series. The placement and
