Electronics Forum | Fri Jul 19 16:27:38 EDT 2013 | microaide
I think I have the vision problems figured out. There were two problems. 1) The Alignment type was set to "Small" for my TQFP48 part. It should have been set to "Complete". This is a clear case of poor documentation. The AutoProgram manual lists the
Electronics Forum | Sat Jun 28 07:19:32 EDT 2014 | sramos
Based on your knowledge and experience, could you tell me about speed differences when placing a mix of SMD at mass production? We could consider packages like the small R & C chips, then SOD323, SOT-23, SOT-23-5, SOT23-6, SON6, QFN8, SOIC-8, SOIC-16
Electronics Forum | Fri May 15 14:41:25 EDT 1998 | Terry Burnette 512-933-5783
| We had some failures on an IC package that the manufacturer has put down to moisture inside the package, leading to popcorning. | This seems a bit odd, the package is a PLCC 84 which is quite thick. I have only seen this problem on thin packages. |
Electronics Forum | Thu Aug 16 20:11:21 EDT 2001 | davef
Hussman is correct. Make those people quit. [Just walk-up, pimp slap 'em, grab their dental pick, and say "Dave says you can't use this any more. I'm just following orders."][Trust me, this is much smoother than the "Tonya Harding Approach" that I
Electronics Forum | Tue Sep 30 21:00:41 EDT 2003 | davef
We're not clear on what you seek. So, as a starting point for our discussion, we wouldn't get agitated if we saw "routine" coplanarity of 4 thou. For instance: Maximum Lead Coplanarity [Altera] Package||Acronym||Lead material||Finish||Maximum Lead
Electronics Forum | Thu May 03 22:51:14 EDT 2007 | jmelson
I am still learning the CSM84, but have gotten one board programmed and working. Now, I'm doing the next board, and need to use the mechanical alignment unit for a 22 x 22 mm TQFP. This chip is too large to clear the jaws on any head. Can the CSM h
Electronics Forum | Thu May 24 17:37:25 EDT 2007 | jmelson
I did one batch of low-density (0805 and standard SO chips) with excellent results. I then spent some time figuring out how to calibrate the mechanical alignment station (most of the calibration offsets on this machine were either zero or several mm
Electronics Forum | Mon Jan 10 17:12:53 EST 2011 | gosswald
I have been researching older lower cost used Pick and Place machines and so far I am leaning towards the Quad IV C. There seems to be a fair amount of these units around and I have heard some pretty good things about them on some of the past posts.
Electronics Forum | Sun Sep 29 09:48:01 EDT 2013 | jvadillo
Hi, we have finally purchased the following second hand equipment: - TWS Quadra pick&place from 2004 - TWS 1100 oven - Motoprint-M automatic screen printer We are quite happy for the price we paid and what we have obtained. The PnP needs some n
Electronics Forum | Tue Jan 20 09:41:25 EST 2015 | rgduval
Well put, Evtimov! :) I've made my argument against it. I'm not comfortable taking a job placing parts outside the capabilities of the machine in general, much less parts that I can't actually see! The machine is good down to .5mm pitch parts, and
