Electronics Forum | Tue May 06 21:35:27 EDT 2014 | davef
Indium recommendations: 0201's: * Stencil Opening = 11mil x 16mil rectangle * Foot Print = 12mil x 15mil rectangle * Stencil Thickness = 5mils * Spacing = 9mils Note: The most common stencil being utilized, is the laser cut electropolished, and in so
Electronics Forum | Wed May 07 08:16:58 EDT 2014 | emeto
It really depends on pad design and other component on the PCB. Most of the time I run 0201s I have microBGAs on the board and usually print 3mil. Reduction will depend on the paste. For leaded paste you will have reduction (about 10% or so).For Lea
Electronics Forum | Tue Aug 17 10:41:13 EDT 1999 | Steve A
Wayne, Sounds like a gasketing problem. When the horizontal apertures are bleeding but not the vertical apertures. Could be poor underside support, HASL miniscus issues, masking or plugging issues, but what many people do not account for is that t
Electronics Forum | Wed Apr 27 01:20:22 EDT 2005 | Frank
Are you sure about your dimensions? .45mil ball diameter and .8mil pitch, and a body size of 16x8mils is really, really tiny. I assume you mean millimeters and not mils? 1mil = 0.0254millimeters If your stencil is 5mils and your ball diameter is
Electronics Forum | Tue Jun 23 11:08:42 EDT 1998 | Russ Miculich
| Any ideas on what to buy? Only need to build surface mount protos, ability to rework. Is a rework station okay? | Will subcontract production after design is proven. Best bet is to get an Elite or OK Industries manual printer if you are not doing
Electronics Forum | Fri Oct 09 23:17:05 EDT 1998 | kallol Chakraborty
| | I need to set a cleanliness limit for our incoming boards. I know that some people use 14-10 microgr. sq. in. But how can I determine what is best for me. | | Can anybody tell me if there's a standard for this. | | Right now we are using an Alph
Electronics Forum | Thu Oct 21 14:02:32 EDT 1999 | Ron Costa
We are a contract manufacturer currently building a job with IBM CBGA-255 devices and 20mil QFP's that are close to each other. We use a 6 mil laser cut and electro polished stencil with one to one apertures on the BGA's. The customer is experiencing
Electronics Forum | Thu Jul 27 14:48:26 EDT 2000 | Bob Barr
Is Mil-I-46058 still an active spec or has it been obsoleted by the Feds in favor of IPC specs? I have an internal process document that is based on IPC requirements, but a customer wants me to use their specs that are based on the mil spec. I am ho
Electronics Forum | Wed Dec 20 10:04:07 EST 2017 | junkeymonkey246
Hello there, I work at Redcom Laboratories in Victor NY. I'm a student and new to being a machine repair technician. I'm having some bother with one of our TYCO QUAD QSP-2 machines. I keep getting the errors: "WARNING: Head#2 Nozzle RUNOUT=27.1 mi
Electronics Forum | Wed Dec 26 08:42:23 EST 2001 | davef
Look here: http://www.dscc.dla.mil/Programs/MilSpec/ListDocs.asp?BasicDoc=MIL-STD-883 I found this by searching the internet with "google" [ http://www.google.com/ ]