Electronics Forum | Thu Oct 12 08:46:16 EDT 2000 | T Jones
Several online PCB fabrication quote forms offer SMOBC as a surface finish along with HASL, Ni/AU, etc. How does one specifify SMOBC for traces and untented vias, and elctroless Ni/Au for smt pads? Are these processes mutually exclusive? Or can I g
Electronics Forum | Thu Oct 12 09:48:05 EDT 2000 | John Thorup
Actually they are complimentary. SMOBC describes how the solder mask shall be applied (but not the type, surface finish, color, etc). The other terms describe the type of surface protective finish applied to the solderable surfaces. You need to sp
Electronics Forum | Thu Oct 19 09:39:53 EDT 2000 | NLykus
Great information. Your all right in my book "Dave F". Thanks for your help. Will redesign D.O.E. with more refined profiles for the different materials and let you know how it goes. Take care N. Lykus
Electronics Forum | Wed Oct 11 13:15:26 EDT 2000 | T.A.
Does anyone know were I can get the number for EMC stencil cleaner. I need technical books for an EMC 30S stencil cleaner.. Thanks in advance. T.A
Electronics Forum | Wed Oct 11 15:52:33 EDT 2000 | John Thorup
Hello TA Please go to the "search" box immediately to the left of the screen, click "companies" for Search Section and enter EMC in the Search Terms. You'll go right to it.
Electronics Forum | Thu Oct 12 09:21:04 EDT 2000 | DaveH
T.A. Give me a call at 215-340-0650, Ext.241. I will need some additional information from you, but we will supply you with the documentation that you need.
Electronics Forum | Thu Oct 12 17:56:58 EDT 2000 | DennisF
The white residue can be caused by putting Alcohol on the no clean product. Some people will attempt to clean an area they have reworked.
Electronics Forum | Fri Oct 13 15:16:43 EDT 2000 | Dave F
George and the others make good points. Check Les Hymes response to a similar question in 7/00 "Circuits Assembly"
Electronics Forum | Tue Oct 10 11:21:20 EDT 2000 | dpoling
We are currently having a lot of problems in Circuit testing many of our product due to the use of our no clean flux. We don't clean our board in any way. How is the industry dealing with this problem? Or are we unique?
Electronics Forum | Fri Oct 13 15:46:43 EDT 2000 | zorox
You are not unique. We too are using "no-clean" flux but yet we still have to use flux off to clean the boards before our test bays. I know of no solution to this yet but I am actively seeking one.
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