Electronics Forum | Wed Sep 29 22:48:07 EDT 1999 | Dave F
| Can someone help me find info on gold repair? I know it can be done, but I need to know how expensive it is, etc. | Paul: The following seel gold finger repair kits, in-case you haven't had your dose of heavy metals: Hunter Products 792 Partridg
Electronics Forum | Sun Sep 26 11:54:06 EDT 1999 | Earl Moon
| i had a problem here, during the wave soldering process, we apply a water soluble mask on the gold finger to protect it from contamination. But after washing, there is still some mask left on the gold finger. | Can anyone pls advise is there any pa
Electronics Forum | Thu Sep 23 12:42:02 EDT 1999 | Bob Barr
Dear Administrator, On 9/25, a forum user named Seli posted a question titled "Electronic Manufacturing on the Beach". Out of 11 responses to his posting, exactly one had anything to do with his question. The other 10 were completely off topic. P
Electronics Forum | Fri Sep 24 10:43:42 EDT 1999 | Ken Kkoyen
| 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 table mo
Electronics Forum | Fri Sep 24 13:44:06 EDT 1999 | Eric Lee Williams
| | 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 table
Electronics Forum | Tue Sep 21 04:00:27 EDT 1999 | Wolfgang Busko
| My stencil thickness is 6 mil and we got qfp's with fine pitch. | how many percent should i reduce my stencil aperture using a 6 mil stencil for 0.5 mm pitch and 0.4 mm pitch ? | | thanks | We use 6 mil lasercut stencils with 15% reduction and th
Electronics Forum | Tue Sep 21 11:28:26 EDT 1999 | Dave F
| 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 | Tue Sep 21 13:43:33 EDT 1999 | Glenn Robertson
| 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 | Fri Sep 17 18:33:51 EDT 1999 | Michael
| One problem we found was that when more than one person was working on the system at one time we had problems. For example one person working on the line computer, another on the machine computer and another on the VMPS system. That was usually a
Electronics Forum | Thu Sep 16 17:22:16 EDT 1999 | DaveJ
We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a recomm