Electronics Forum | Tue Aug 10 03:13:30 EDT 1999 | Dreamsniper
| hello to everybody, | we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; | does anybody know how to eliminate flux residues or how not to produce them during rework operatio
Electronics Forum | Thu Aug 05 08:04:32 EDT 1999 | Peter Barton
| Hi , | | Could DIP package ( PTH) run through IR Reflow instead of wave soldering? | | Will there be any reliability impact on this package. | | Thanks | | Jack | | Jack, The dip component package material and the packaging process is the sa
Electronics Forum | Wed Jul 28 20:28:26 EDT 1999 | Carlos Palacios
Currently, we are baking any PCB before process on SMT, the 'reason' is to dry any possible humidity that could be inner the PCB, it does not matter if the PCB is multilayer or not. We bake PCB's at 107C for 4 hrs and the board must be process into n
Electronics Forum | Mon Jul 26 17:21:20 EDT 1999 | Tom Terlizzi
any advice on ionograph testing in the 1 microgram/cm^2 for small devices. We have a old Alpha 500 series machine that is dead but ALpha doesn't service this vintage machine.Any other way to perform this test, or a third party vendors to service th
Electronics Forum | Tue Jul 27 18:00:12 EDT 1999 | Earl Moon
| Jennifer, | | AMI sells some SMT printers, 908-722-7100. Also, some of the pick and place vendors have printers available for assembly line integration with their own equipment. Universal is affiliated with DEK and MPM is affiliated with the whole
Electronics Forum | Fri Jul 23 15:47:31 EDT 1999 | C.K.
| Does anyone have any experiences with EMC stencil screen cleaners or can you recommend a good one? | SMarTsonic makes an excellent cleaner. As Bill states, it uses ultrasonics and an EPA approved detergent to wash stencils and boards. However,
Electronics Forum | Thu Jul 22 05:00:45 EDT 1999 | George Verboven
| I have pcb's in which i am experiencing warping. | the boards are 12.8125" on a diagonal measurement. | they are out approximatley .010". | the boards are combination thru-hole,smt, they also have 3ounce copper.what is acceptable,and what is the pr
Electronics Forum | Thu Jul 15 08:46:50 EDT 1999 | Mike Demos
Is anyone on the list aware of the following manufacturer or equipment? The vintage of this equipment is circa 1988. I am being asked if I want any of this equipment for our facility: Heeb SMT Placement Equipment, Model HM-60 Heeb Reflow oven, Mod
Electronics Forum | Tue Jul 20 10:16:31 EDT 1999 | Alden Lewis
| Is anyone on the list aware of the following manufacturer or equipment? The vintage of this equipment is circa 1988. I am being asked if I want any of this equipment for our facility: | | Heeb SMT Placement Equipment, Model HM-60 | Heeb Reflow o
Electronics Forum | Mon Jul 12 13:06:32 EDT 1999 | Earl Moon
| I had parts replaced on SMT PWBs and the repair created measling defects. | Reliability Question: | Q1. Can measling be aggrevated or grow over time due to | temperature cycling and moisture. Customer environment is | -62C to +85C. | | Thank
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