Electronics Forum | Fri May 14 00:28:09 EDT 1999 | Mike D.
| I am seeing reflow around my signal pins after being subjected | to a profile of 204c for 1 minute and 225c for a min of 30 seconds. Signal pins are soldered into a copper plated alum. case with SB5 and then silver plated. The pins have a hot oil
Electronics Forum | Thu May 13 12:41:10 EDT 1999 | Eric
| | We are currently looking at purchasing some BGA rework equipment. Could someone give us the pro's and cons of IR heating (top/bottom)vs. hot air convection ? | | All other tips are also welcome. | | | | Thanks | | | Philip, | I have been doing
Electronics Forum | Mon May 10 15:17:37 EDT 1999 | C.K.
| If I clean my assembly and find no visable contamination with the unaided eye, do I need to do cleanliness testing prior to conformal coating? | More than likely, you're okay if you can't see any contamination with the unaided eye. However, the
Electronics Forum | Mon Apr 26 16:06:32 EDT 1999 | Chrys Shea
Hey - remember the evaluation of VOC-Free fluxes that I promised a couple of months ago? well, I finally scrounged up the time to remove the propreitary (board name and number) info from the report. So it's ready. I posted it in the SMTnet library
Electronics Forum | Mon Apr 26 21:29:34 EDT 1999 | Dave F
| Hey - remember the evaluation of VOC-Free fluxes that I promised a couple of months ago? well, I finally scrounged up the time to remove the propreitary (board name and number) info from the report. So it's ready. I posted it in the SMTnet libra
Electronics Forum | Thu Apr 22 12:36:34 EDT 1999 | Steve Gregory
Hey ya'll! I just wanted to give you a picture of the washer baskets I made to show how simple they are to make (and I wanted to try out my new digital camera too). The picture shows a basket I made in about 15-minutes and with about $1.99 worth of
Electronics Forum | Thu Apr 22 13:12:50 EDT 1999 | Ben Kirk
| Hey ya'll! | | I just wanted to give you a picture of the washer baskets I made to show how simple they are to make (and I wanted to try out my new digital camera too). | | The picture shows a basket I made in about 15-minutes and with about $1.9
Electronics Forum | Thu Apr 22 14:16:00 EDT 1999 | Chrys Shea
| | Hey ya'll! | | | | I just wanted to give you a picture of the washer baskets I made to show how simple they are to make (and I wanted to try out my new digital camera too). | | | | The picture shows a basket I made in about 15-minutes and with
Electronics Forum | Thu Apr 22 20:26:39 EDT 1999 | Dave F
| | On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although whe
Electronics Forum | Mon Apr 26 22:25:04 EDT 1999 | Big K
75) but the right thing is to change the light source in the robot that is rejecting PLCC's..it worked for us!!! | | Larry, | | | | I have seen this problem on our machine with PLCC 28's, same part same PD, same program except head 2 would place hea