Electronics Forum | Fri Oct 16 21:07:31 EDT 1998 | Scott McKee
| I need the following information on uBGA's - body size, ball pitch and ball diameter. Are they a plastic package (with the resulting moisture sensitivity of a PBGA)? Also, does the uBGA put any special requirements on pick and place equipment? |
Electronics Forum | Wed Sep 02 11:52:40 EDT 1998 | Dick Casagrande
We are investigating equipment for a new SMT line. We are an OEM doing thru hole assembly and now must decide whether to do SM assembly in house or sub-contract out. We are a low volume/high board mix company. Our boards are mixed tech with SM on bot
Electronics Forum | Sun Sep 06 12:46:22 EDT 1998 | Phillip Hunter
| We are investigating equipment for a new SMT line. We are an OEM doing thru hole assembly and now must decide whether to do SM assembly in house or sub-contract out. We are a low volume/high board mix company. | Our boards are mixed tech with SM on
Electronics Forum | Wed Jul 15 06:32:03 EDT 1998 | Process Engineer
| We just have a use cp4 .I have a problem on transfering data between cp3 to cp4 .when I use the data for cp4 I can't have parts in correct location. Is that normal? or it's because that has a different vision system.if so.how can i do with it.the d
Electronics Forum | Sun Feb 15 18:07:18 EST 1998 | Scott McKee
| I am beginer in BGA assembly and am confused in selection of pick and place option. As per book on 'implementation of BGA Technology-by 1995 aeic inc. states that BGAs reflow is quite forgiving and you need only Mechanical centering of PBGAs. The I
Electronics Forum | Fri Dec 28 12:58:40 EST 2001 | cyber_wolf
We currently have 4 Mydata pick and place machines in production.(1)TP-9 ,(2)TP-11's,and a new MY-12 machine. We run 3 shifts five days a week, and we also have a weekend shift. We seem to bend alot of A12,A13,and A14 mount tools.When we are busy, we
Electronics Forum | Thu Apr 22 00:14:08 EDT 2004 | snehal acharya
we are in Process controls field we have set up our own SMT line , we have MYDATA TP9-2U Pick & Place M/C & reflow oven & manual printer. since now our product demand is increasing so for enhancement of the quality & for speedy production i wanted to
Electronics Forum | Wed Jun 23 13:34:29 EDT 2004 | df_indy
I am four weeks into my new job, there always seems to be some issues here with PCB every week. Today while I was checking some assemblies with micro-scope, I found a lot of tiny bubbles/blisters on the board. They are just little dots if you look
Electronics Forum | Thu Mar 10 23:23:56 EST 2005 | pmd
We have a MyData TP-9-2 with a in line Y wagon. It is a long screw and the vintage is 1994. The Y wagon vibrates at about 24 micrometers at about 25 hertz. Burnin reviels zero encoder pulse errors. Hystersis test indicates a Y axis Y wise varance of
Electronics Forum | Tue Nov 15 16:57:22 EST 2005 | bk
If your problem is happening part way through the calibration the problem might be there is too much friction from your Y-wagon. Measure the friction on the Y-wagon using the service program if it fails or if it is near the max allowed try oiling up
