Electronics Forum | Thu Sep 19 20:28:59 EDT 2002 | bugsjoe
* What kind of the eraser can clean clearly?I've been use the eraser but the defect still present.
Electronics Forum | Thu Sep 19 17:14:02 EDT 2002 | davef
Comments are: * Use an eraser if the surface of Au is not clean, but make sure the eraser has no/low ionics (such as sulfur that is a common additive for rubber). * If the plating surface required eraser to remove the top surface, the plasma normally
Electronics Forum | Thu Sep 19 02:45:33 EDT 2002 | bugsjoe
Thank you ur reply Dave. Let me explain our COB workflow: 1. unpack PCB (FR4,LPI,HASL)(the thickness of gold and nickel we can't be find)(No SMT before) 2. clean the pcb by rubber 3. blow the pcb by di-ionic gun 4. attach die by adhesive gel 5. cure
Electronics Forum | Sun Sep 17 22:50:20 EDT 2000 | Sartor
I am looking for a solution for gold finger cleaning and repairing.Can anyone recommend good solution(s)?Also,can anyone recommend a good flux paste source(s)?Thanks.
Electronics Forum | Mon May 15 14:42:27 EDT 2000 | John Thorup
Hi Sal I've used the Stevens product for about 5 years and have nothing but good to say about them. pallets? can't say. The gloves simply extent the finger length by about 0.04" They come in 15" sticks so the length is up to you. Print/reflow contam
Electronics Forum | Fri Jan 22 16:16:17 EST 2010 | stepheniii
My old boss bought some stuff to clean the lead off of gold fingers. At least that is what he thought it did. What it really did was remove the gold fingers. And quite well I might add. The short answer to your question is no. And if you replate mak
Electronics Forum | Thu Oct 28 17:46:44 EDT 1999 | Gary Kemp
My company manufactures memory modules and I'm finding solder specs on the gold fingers following the reflow process. We are using a no-clean solder paste. The spec sheet warns against crossing the 140 degree C mark during the soak stage, preventin
Electronics Forum | Wed Jun 25 08:58:02 EDT 2003 | cyber_wolf
I need something that is very thin so I can screen print while the fingers are protected. We have tried cleaning the fingers prior to shipment, but our customer tells us that even alcohol leaves enough residue to cause problems.
Electronics Forum | Wed Jun 25 08:50:54 EDT 2003 | russ
I believe that Fancort makes some finger protectors that are made of Metal (Aluminum, titanium, etc...) I don't know how well these would process through placement equipment however due to their thickness. Could you clean the Kapton residue off just
Electronics Forum | Sat Jan 23 12:37:35 EST 1999 | parag palshikar
hi, i am working towards developing a no-clean process for a customer at contract manufacturing facility. the assemblies have gold fingers on them. these are masked to prevent from any damage to them during reflow soldering. the earlier process ut
