Electronics Forum | Thu Jun 14 23:21:30 EDT 2001 | oem boy
I am working on 0201 development for my company in the UK, and I am planning a rather extensive DOE for my reflow oven profile. I am planning on studying various ramp rates, soak times, times above liquidus, peak temps, etc... My biggest concern
Electronics Forum | Thu Jun 21 12:05:54 EDT 2001 | brownsj
I used to assembly 0402 devices on to a double sided PCBA using a 96% tin 4% silver alloy. This material printed fine but the higher processing temperatures did present a problem. This material had a melting point of 221 deg C which required a peak r
Electronics Forum | Thu Jul 26 17:38:02 EDT 2001 | Russ Cutler
We are looking into using Scored PWB's on a new high volume design. We've used Tab Routed PWB's exclusively in the past. I understand that Scored PWB's are more efficient to produce and depanelize. Question: What are the industry standards for cr
Electronics Forum | Mon Sep 20 11:53:41 EDT 1999 | Scott S. Snider
| HI everyone, | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 and .001
Electronics Forum | Thu Sep 23 21:51:27 EDT 1999 | harry
| | HI everyone, | | | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 an
Electronics Forum | Wed Sep 08 17:25:49 EDT 1999 | Earl Moon
| My company is looking to perform "real time" statistical process control on our current SMT operations. I have identified the critical processes for SPC but have not had much luck in finding a system(s) that can monitor the required processes for m
Electronics Forum | Tue Jul 13 13:58:50 EDT 1999 | JohnW
| We are looking to automate the paste printing portion of our SMT process. We are looking at used equipment from DEK and MPM from 1994 onward.(DEK 260 & 265 MPM AP20 & AP27) Does anyone have some feedback or concerns with any of these machines? Does
Electronics Forum | Tue Jul 13 16:50:20 EDT 1999 | Boca
| We are looking to automate the paste printing portion of our SMT process. We are looking at used equipment from DEK and MPM from 1994 onward.(DEK 260 & 265 MPM AP20 & AP27) Does anyone have some feedback or concerns with any of these machines? Does
Electronics Forum | Thu Aug 23 16:41:06 EDT 2001 | slthomas
Naw, the rest of the BOARD we use them on. Same assembly. Actually we use them on one other assembly and have the same problem. Same oven, same line, same paste, same problem. I've tried to get the production super. to move them to another line w
Electronics Forum | Thu Nov 15 13:51:23 EST 2001 | jhingtgen
John, To answer your question, we have a number of customers that are using this process, Pumpprinting very successfully! If you would like to contact myself I can provide you with some very good references that will be able to answer all your ques
