Electronics Forum: yellow often (Page 1 of 1)

Part of PCB silkscreen turns yellow brownish

Electronics Forum | Thu Sep 04 05:18:45 EDT 2014 | sasa29

PCB Manufacturing demands preparation of design well in advance. The finalized designs are fed into the systems and the production is carried away. If the boards are of small sizes, multiple boards are made on a single large board and separated into

Pallet Maintenance

Electronics Forum | Tue Mar 13 14:45:07 EST 2001 | kerryn

Hi Mike, I appreciate your views, but how does this relate to the original question? Roger asked "Wash how? Wash How often? amd PM? He didn't ask who. It seems that your response in a "yellow page" ad and not an answer to the question. At least Bi

Re: polyimide stencils

Electronics Forum | Sat Nov 14 08:58:38 EST 1998 | Earl Moon

| I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | You are hearing about polyimide as in polyimide film as Kapton (TM Dupont). This material is the stuff of flex and rigid/flex circuit

Hardware for ROHS builds

Electronics Forum | Tue Nov 07 11:04:06 EST 2006 | muse95

What type of hardware are you looking for? Nuts and bolts? Custom machined/stamped parts? In general, stainless steel is usually considered RoHS, but more expensive. However, medical equipment usually uses things like stainless steel. However, som

Re: polyimide stencils

Electronics Forum | Thu Apr 22 15:27:44 EDT 1999 | Hugh M

| | I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | | | You are hearing about polyimide as in polyimide film as Kapton (TM Dupont). This material is the stuff of flex and rigid/flex c

Samsung CP45FV Neo Programming

Electronics Forum | Fri Apr 11 11:41:31 EDT 2014 | superlen

JB, I have found the same thing with the visions codes & auto-teach. I'm sure there are some nifty tips/tricks to make all this work faster/better. I just wish they were documented in the manuals better. One thing I did on a yellow tant just a few d

Re: PCB Warping.

Electronics Forum | Wed Mar 18 09:03:57 EST 1998 | Earl Moon

| Problem occurs because the glass transition temp for FR4 is lower than reflow temperature. Our company wrote an article which was printed in SMT magazine some years ago | that deals with this exact subject. Best way to deal with this is to use a ce

Re: Cleaning procedures for Entek-Plus Cu-106A

Electronics Forum | Mon Apr 26 11:04:53 EDT 1999 | Dave F

| | Earl said, in essence: | | | | | Justin is absolutely right ... | | | | | | Again, Entek is not much more than a flux coating ... | | | | | | Metallic coatings protect best, as we all know - especially those electroplated. Those coatings chemi

Re: Cleaning procedures for Entek-Plus Cu-106A

Electronics Forum | Mon Apr 26 17:45:26 EDT 1999 | Earl Moon

| | | Earl said, in essence: | | | | | | | Justin is absolutely right ... | | | | | | | | Again, Entek is not much more than a flux coating ... | | | | | | | | Metallic coatings protect best, as we all know - especially those electroplated. Those

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