Electronics Forum | Mon Jun 07 15:12:13 EDT 1999 | John Thorup
| I was wondering what measurements are used to define pitch? Generally we would use it for the distance from lead center to lead center of an IC. For instance, an SOIC would usually have a pitch of 0.050" or 50 thousandths of an inch (1.27mm)|
Electronics Forum | Wed Mar 03 15:48:31 EST 1999 | Timothy Loose
What do you recommend for engineering lab SMT tools? We'll be doing general PCB assembly and repair, fine pitch and others.
Electronics Forum | Mon Jan 18 20:38:02 EST 1999 | Dave F
| I am looking for a "general guideline" for assembly processing these types of assemblies. Do any exist? | John, try the following link to get started:
Electronics Forum | Tue Mar 10 19:27:18 EST 1998 | Barry Hill
We are currently using a product made by Syspro called Impact Encore. Although we have had misc. problems here and there in general it is a fully featured product at a reasonable price. It is worth checking out.
Electronics Forum | Tue Dec 16 15:00:45 EST 1997 | Chris Fontaine
I am looking for information regarding the removal of parylene through a plasma etching process. Any information about this subject, or the plasma etching process in general would be greatly appreciated. Vendor comments are also welcome. Thank y
Electronics Forum | Wed Aug 22 12:39:58 EDT 2001 | andyy
From the manufacturer's perspective, we aim to be able to fully inspect all components within the beat rate of the line and generally do. I'm not aware of any competitive machines that do the random sampling that is suggested above, however it is do
Electronics Forum | Fri Feb 01 10:57:52 EST 2002 | davef
Yes, that's what people are thinking. The 217�C melting temperature that you mention requires a ~250�C reflow temperature. Generally, boards, legend ink, and components cannot take that temperature. Further, few ovens can produce that temperature
Electronics Forum | Wed Apr 10 11:45:08 EDT 2002 | mwoodall
We measure the thickness of solder paste printed onto PCBs as a control of the printing process. Generally 6 thou stencils are used and give between 6.2 and 6.8 thou. What thicknesses do other users get? Cheers! Mark
Electronics Forum | Wed Feb 05 10:26:18 EST 2003 | russ
Go one to one at 7mils for these connectors. Generally your stencil shop will do this for you. Somebody has the artwork since a stencil was made for it at sometime? Russ
Electronics Forum | Mon May 20 23:01:16 EDT 2002 | dwoon
Hi guys, What are the major inefficiencies that most EMS companies faced in a high-mix/low-volume manufacturing? And, what in general an equipment manufacturer (especially surface-mounting equipment manufacturer) can help them to improve the product
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