Electronics Forum: 16mil part (Page 1 of 2)

Re: 8 mil placement, part Deaux!!

Electronics Forum | Fri Sep 11 16:52:00 EDT 1998 | Dave F

0.050" -> 50 mil -> 50 pitch 0.80 mm -> 0.032" -> 32 mil -> 32 pitch 0.64 mm -> 0.025" -> 25 mil -> 25 pitch 0.50 mm -> 0.020" -> 20 mil -> 20 pitch 0.40 mm -> 0.016" -> 16 mil -> 16 pitch 0.20 mm -> 0.012" -> 12 mil -> 12 pitch Dave F

Re: 8 mil placement, part Deaux!! / My Mistake - Sorry

Electronics Forum | Mon Sep 14 09:25:49 EDT 1998 | Dave F

0.050" -> 50 mil -> 50 pitch 0.80 mm -> 0.032" -> 32 mil -> 32 pitch 0.64 mm -> 0.025" -> 25 mil -> 25 pitch 0.50 mm -> 0.020" -> 20 mil -> 20 pitch 0.40 mm -> 0.016" -> 16 mil -> 16 pitch 0.20 mm -> 0.012" -> 12 mil -> 12 pitch Dave F Y

Re: about QP242

Electronics Forum | Sun Nov 21 07:01:14 EST 1999 | Michael stephens

Charley, I have worked on QP242's for 1 and 1/2 years. It is a very reliable machine but like all machines, PM's are very important. When I first got to NOKIA I wasn't familiar with the QP's. Mostly IP3's, IP2's. We are placing 16 mil pitch parts

fine pitch QFP

Electronics Forum | Thu Jun 16 08:31:15 EDT 2005 | jh0n!

The most part I have the most difficulty with is a 16mil QFN. We found that reducing stencil thickness to 4mil, and reducing aperatures for the IC by 20%, and setting local fiducials to the IC helped immensely. We used to get 75% or more bridged ou

solution to design challenge (ubga, NSMD pads, heavy traces)

Electronics Forum | Wed Mar 18 11:27:24 EDT 2020 | slthomas

I am about to order a stencil and I can already see that I'm going to have issues. I'm hoping someone has a recipe for this scenario that we haven't tried yet. The parts are 16 mil pitch bga's, the pads are NSMD (10 mil dia. with 12.6 mil mask open

Stencil Design

Electronics Forum | Tue Sep 16 10:51:09 EDT 2008 | rayjr1491

Here is the scenario: We are using Lead Free Type III paste. We are using 5 Mil EFORM stencils The part we are having issues with is a SOT883. Stencil design is the SMALL PADs are 10x16mil Large PAD 14 x 24 mil. We are getting some see-sawing of th

16 mil pitch QFPs / solder paste type 4 & 5?

Electronics Forum | Mon Apr 07 13:02:30 EDT 2003 | kmorris

Sorry, I forgot to include the stencil thickness. It is 5 mil. Thanks for the input, everbody. I just checked with our stencil supplier & I thought that Electro-polish was standard with lazer, but I now find out it is not. Our stencil did not get

Pick & place

Electronics Forum | Tue Mar 27 08:49:57 EDT 2007 | slthomas

If by 15 mil accuracy you're looking to place 15 or 16 mil pitch, yeah, you're asking a lot of a IVc. Ours do OK for 20 mil pitch but I wouldn't want my living to depend on placing high volume ultra fine pitch with it. They're not designed for that.

Used Contact 3S

Electronics Forum | Mon Sep 22 10:45:44 EDT 2003 | adlsmt

Unless its dirt cheap stick with a 3AV or better. The 3S is SLOW. 3AV's go around $20K to $30K (I can get you one for $25K with 75 8mm feeders). The machines are pretty good but dont expect perfect results with fine pitch parts. We ran down to 16mil

MyData Vs. Samsung?

Electronics Forum | Wed May 22 17:16:11 EDT 2002 | russ

We currently have two samsung CP20 CVs unfortunately I have no experience with the MyDatas The Samsungs are pretty good machines, They seem to be pretty solid all around but have experienced placement problems with 216 pin 16mil pitch QFP. The soft

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