Electronics Forum: masking (Page 4 of 194)

conformal coating - masking problem with ammonia

Electronics Forum | Mon May 18 02:22:34 EDT 2009 | jhk71

Unfortunately I have no information about the metal layers and the processes. I only see the effect. Is it possible or common that the nickel undercoat could have been forgotten?

Question about solder masking BGA vias...

Electronics Forum | Mon Sep 20 13:04:25 EDT 2004 | davef

The Intel BGA Developer�s Guide [ http://developer.intel.com/design/packtech/ch_14.pdf ] says: 14.8.3.3 Plated Through Hole (PTH) Isolation Regardless of the technique used for the mounting pads shape or definition, isolation of the plated through h

Question about solder masking BGA vias...

Electronics Forum | Sat Sep 18 12:10:19 EDT 2004 | Steve Gregory

I have a question about solder masking via's in a BGA pattern, and want to see if I'm thinking correctly about this. This problem is kind of along the same line as Carol's problem earlier. I think it's a bad idea to leave the via's free from solder

rubber masking boots for conformal coatings

Electronics Forum | Tue Nov 15 14:31:59 EST 2005 | Samir Nagheenanajar

Back in the days when I was in charge of a Paintline Dip conformal coater, I had the same issue with a non-hermetically sealed Potentiometer. We tried to use rubber boots, but the capillary/wicking action of our silicone-based heat cured coating was

Re: Need to automatically dispense latex masking material

Electronics Forum | Tue Nov 10 12:47:06 EST 1998 | Dave F

| I have a need to dispense a latex masking material using an automated dispensing system. We are presently looking at the I&J750. Does anyone have any experience with this piece of equipment, or have a better solution available? | Doug: Fisnar m

Re: Need to automatically dispense latex masking material

Electronics Forum | Thu Nov 12 10:05:05 EST 1998 | Doug Clement

| | I have a need to dispense a latex masking material using an automated dispensing system. We are presently looking at the I&J750. Does anyone have any experience with this piece of equipment, or have a better solution available? | | | Doug: Fi

Old machine for Picking and placing masking dots

Electronics Forum | Thu Jun 05 16:58:16 EDT 2014 | proy

I would love to use my old zevatech with a large nozzle (qfp) to pick kapton masking dots and place them on a board. I am getting some 'thicker' kapton dots to test, and need to find a way to present them, might be a trick but worth a try. Has anyon

Re: Need to automatically dispense latex masking material

Electronics Forum | Wed Nov 11 08:37:46 EST 1998 | Wayne Bracy

| I have a need to dispense a latex masking material using an automated dispensing system. We are presently looking at the I&J750. Does anyone have any experience with this piece of equipment, or have a better solution available? | Doug: You mig

Re: Need to automatically dispense latex masking material

Electronics Forum | Thu Nov 12 11:16:55 EST 1998 | Dave F

| | | I have a need to dispense a latex masking material using an automated dispensing system. We are presently looking at the I&J750. Does anyone have any experience with this piece of equipment, or have a better solution available? | | | | | Dou

Re: Need to automatically dispense latex masking material

Electronics Forum | Fri Nov 13 10:25:11 EST 1998 | Doug Clement

| | | | I have a need to dispense a latex masking material using an automated dispensing system. We are presently looking at the I&J750. Does anyone have any experience with this piece of equipment, or have a better solution available? | | | | | |


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