Electronics Forum | Fri Sep 24 20:33:44 EDT 1999 | Ron Gillam
| | | The machine is a Universal 6796 DIP inserter. The driver card for the X axis burned a couple of resistors and a trace, probably a couple of power transistors too. I had a spare card and put it in. Now on powering-up the machine, the X-Y tabl
Electronics Forum | Fri Aug 13 12:52:17 EDT 1999 | Steve Schrader
| Hello | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | 100 durometer blade. Getting "tails" on deposi
Electronics Forum | Wed Apr 07 08:38:33 EDT 1999 | Dave F
| | | I need help in finding solder paste measuring equipment. | | | | | Cuch: What aspect about paste are you trying to measure? | | | | 1 Paste qualification? | | 2 Incoming quality? | | 3 Print volume? | | | | Dave F | | | mostly looking for
Electronics Forum | Tue Mar 30 11:39:59 EST 1999 | Stefan Witte
| Hello, | | I'm a student assistant in a research project that deals with the simulation of PCB assembly systems. At the moment I collect information about SMDs. | My problem is how to assign the correct feeder width to various devices in a simulat
Electronics Forum | Mon Mar 15 13:33:46 EST 1999 | Stefan Witte
| Is there anyone know where to get information on PIck & Place equipment Program optimisation ( to improve the speed of component placement for boards). Thank you | Program optimization usually includes set up optimization for the feeder table(s) a
Electronics Forum | Fri Feb 19 09:29:38 EST 1999 | Justin Medernach
| What to look for that causes tombstoning and the corective action. | The three biggest causes that I can think of are placement machine component picking inaccuracy, placing inaccuracy, and design design design. If your placement platform is pic
Electronics Forum | Mon Dec 28 12:34:50 EST 1998 | Jon Medernach
Inorder to pick up 0402's RELIABLY correction is required in X & Y axis. Their are Chip Shooter that do this, (KME Create, and Sanyo) You can also place at +/- .002" at 43K cph with a Chip Shooter Bulk feeding is also desirable. It is not only the
Electronics Forum | Thu Dec 10 09:09:31 EST 1998 | Earl Moon
| Hi everybody? | I heard that typical FR-4 would not acceptable for BGA application. | What is the main reason? | (thermal property? or CTE?) | Sombody please answer me the requirement of PCB substrate for PCB application. | Thanks. | | Youngho Son
Electronics Forum | Thu Oct 29 01:21:38 EST 1998 | Erhard
Thinking about that 180� turn unit again: You wouldn't require the the y-movement. The fixed side gets turned over to the other side anyways. | My suggestion would also be to leave the Fuji direction the way it is. (It's more standard anyways?) and
Electronics Forum | Mon Sep 28 11:30:14 EDT 1998 | Bob Barr
No, $60K is for the DRS-24 which has replaced the DRS-22. The 24 adds more bells and whistles, like motorized Z axis. I think they are pricing themselves out of the market, although I understand they are offering a stripped down 24 which is essenti
.gif)
