Electronics Forum | Mon Nov 01 22:16:04 EST 1999 | Dean
Without a detailed description of the suspect parts It is difficult to pin-point the exact solution to your process problem. However, whenever possible avoid non-value added additions to your current process. Here is the reality of the situation:
Electronics Forum | Thu Oct 21 14:02:32 EDT 1999 | Ron Costa
We are a contract manufacturer currently building a job with IBM CBGA-255 devices and 20mil QFP's that are close to each other. We use a 6 mil laser cut and electro polished stencil with one to one apertures on the BGA's. The customer is experiencing
Electronics Forum | Fri Oct 08 21:04:47 EDT 1999 | John
Thanks you all, both to those who responded on the forum and to those who sent me email. I appreciate your help very much. I will contact my vendor and try to help them with your suggestions. I only hope they are open to suggestions. Thanks Again, J
Electronics Forum | Mon Oct 04 03:48:02 EDT 1999 | Chris May
| What is the average pay that a SMT Programmer would get? The machines would be Fuji and Universal. | This is going to open up a can of worms involving phrases relating to monkeys and peanuts. I have come across a spectrum of scales depending on the
Electronics Forum | Mon Oct 04 03:52:26 EDT 1999 | JAX
| | What is the average pay that a SMT Programmer would get? The machines would be Fuji and Universal. | | This is going to open up a can of worms involving phrases relating to monkeys and peanuts. I have come across a spectrum of scales depending on
Electronics Forum | Tue Sep 28 09:41:17 EDT 1999 | Hon Choi
Dear all, We've got a curious problem. We have had a major problem with BGA's occasionally being placed one to several rows or columns off the pads. We are using Universal's GSM2 platform for our general purpose placements. Our Universal rep here
Electronics Forum | Mon Sep 20 17:26:22 EDT 1999 | Earl Moon
| I've had some trouble pasting a test board for a MicroBGA trial. Most of the paste remains in the stencil apertures. | The stencil is 6 mil thick, laser cut and electo-polished. | The apertures are 12 mil in diameter with 20 mil pitch. | We are usi
Electronics Forum | Sun Sep 05 03:52:11 EDT 1999 | Brian
| We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these sizes
Electronics Forum | Wed Aug 25 19:44:35 EDT 1999 | Dave F
| Does anyone have any information on stencil aperture/pad ratios for noclean solder paste. In the past I have experienced severe solder ball problems when using the same size apertures from aqueous products as I do with the No-clean products. Cons
Electronics Forum | Wed Aug 18 15:20:25 EDT 1999 | John Thorup
| Hi, | I'd like to ask some tips about the merits and shortcomings o | of both screen printer and stencil printer. For small quantity and highly mixed usage, which type of printer is suitable to our | application? | The boards contain no BGA and
