Electronics Forum | Tue Mar 16 18:27:34 EST 1999 | Earl Moon
| We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it
Electronics Forum | Mon Mar 15 15:47:51 EST 1999 | Steve Schrader
| Are stencils universal from one printer to another? We are looking into the possibility of going from Solderprint 1414 manual printer to a more automated printer. We are also considering bringing some boards we currently outsource in house. I w
Electronics Forum | Tue Mar 09 18:21:37 EST 1999 | Stan Levitsky
We will wave solder a board with SOIC14 and SOIC16 parts on the bottom. It has been difficult to find any specific wave solder process recommendations from manufacturers of the SOICs. The pad geometry utilizes theiving pads on both sides to reduce br
Electronics Forum | Tue Mar 09 14:29:40 EST 1999 | Jason Hall
When a board has loaded into the machine and the fiducials do not line up I have tried to use mark edit to set an offset into the program. I lined up the crosshairs and set the data. For some reason the machine did not accept this info. Does anyone h
Electronics Forum | Mon Mar 08 10:02:11 EST 1999 | Steve Beck
Hello; I am looking for general info on backplane assemblies. Any info would be appreciated, but some of the questions that come to mind include: -What part types other than connectors do backplane cards have on them? SMT? Leaded? Quantity? Is
Electronics Forum | Wed Mar 03 20:20:30 EST 1999 | Earl Moon
| We have recently had problems with bare boards coming in too thick. I would like to know how to properly specify the minimum and maximum thickness using the 13949F and IPC 4101 specs. (We currently use "MATERIAL: GFN 0620 C1/C1 A2A per MIL - P - 13
Electronics Forum | Fri Feb 19 10:33:16 EST 1999 | Michael Nguyen
I need some help to see if anyone knows of a vendor that makes a permanent marker that is in the Houston area that can write on a PCB the size of a grain of rice using white permanent ink...That's the amount of space we have to write our serial numbe
Electronics Forum | Tue Feb 23 09:21:15 EST 1999 | Steve Schrader
| During inspection and test we find leads which do not get soldered. Some are because of insufficient paste, but with others everything looks right. This will only happen on 1 to 2 pins, and it is not isolated to a specific type of ic or location o
Electronics Forum | Mon Feb 15 15:43:06 EST 1999 | Dave Jurena
Hope some of you out there can help me with this one. I am getting feedback from our test department that they are showing opens on solder joints which have visually good wetting. The touch-up operators confirm that the joint looks good. All they do
Electronics Forum | Sat Feb 06 07:39:30 EST 1999 | Wayne Bracy
| | | I am looking for a piece of equipement that can | safely remove silicon die(200mil by 200mils) from a LTCC board. My present method involves a dental drill which often goes through the dielectric layers and causes scrap. | | | | |
