Electronics Forum | Mon Sep 19 19:22:11 EDT 2011 | henrytcx89
Thanks for taking ur time to answer this. =) The pick and place machine is just pick from wafer(on tape) and place into waffle pack. I read from some of the sources saying that the ejecting needle and the vacuum pick up bits could cause the die to c
Electronics Forum | Wed Dec 27 21:16:51 EST 2000 | Dave F
Expanding on Dason's suggestion ... 4 Waffle Tray Size 4a www.jedec.org/download/default.htm search for "registered microelectronic carrier". 4b JEDEC Publication 95, under the CO- and CS- standards. 4c Tray manufacturers [ie, Peak, Summit, Nepenthe
Electronics Forum | Fri May 19 08:05:23 EDT 2000 | David
We do a lot of prototype work, builds occur days or months apart and moisture Absorption in IC's is a worry. I would like to bake, chuck in some silica gel and then seal or vac seal in an envelope. Does anyone have any experience of vacuum sealing wa
Electronics Forum | Thu Mar 15 17:34:38 EST 2001 | rentreo
I place 0302's on my Quad 4c's all the time. Use a repeat pick-up just like a waffle tray part but make sure the z height is perfect on your pick-up or you will bounce the other parts out of their pockets. Also change your mod code to only try once o
Electronics Forum | Thu Jun 06 08:16:13 EDT 2002 | caldon
Jim- Sorry I can not offer advice on the Panasonic machine but do want to shed light on the Die and waffle pack issue. Take note that if the Die are loose in the pockets the balls or terminations could be damaged. The thin layer that the ball is atta
Electronics Forum | Fri Feb 23 08:28:11 EST 2007 | James
I just wanted to know if anyone stores their vacuum sealed bags on their sides instead of flat. We are trying to save room, but I dont want to create defects either. The ones we have are tightly vacuum sealed and would like to store on their sides
Electronics Forum | Wed Jul 21 06:10:33 EDT 2010 | cyber_wolf
Of course the best way is to get a dimensioned tray drawing if possible. The next best way is measure point to point over as many cavities as you can open your calipers up to. Divide the measurement by the number of pockets you spanned. This reduces
Electronics Forum | Mon Sep 19 09:25:29 EDT 2011 | tech1
There are a few questions I have before we can answer this: 1. How are the die presented to the pick and place machine? (Tape, waffle Pak, tray) 2. What are the dimensions of the die (LxWxH)? 3. Are they bumped die? 4. What is the material of the
Electronics Forum | Tue May 08 08:26:15 EDT 2001 | caldon
Yes Siemens has a fixed tray feeder for matrix trays. If I remember correctly the tray will occupy 1/2 of the table.The feeder is a two part system 1) is the base 2) the the flat tray (just like what is used in the waffle pack changer). the flat tray
Electronics Forum | Mon May 14 13:01:21 EDT 2001 | Charlie
We had two 51 space trays. One was modified by machine shop to hold two waffle trays. We bought a 31 space tray thinking it would hold one tray, it doesn't. We modified it to hold one tray. We than learned, from tech support, that a 31 space base sho
