Electronics Forum: cu dewetting on immersion silver pcb. (Page 1 of 2)

Re: silver finishes on pcbs

Electronics Forum | Thu Dec 14 10:14:04 EST 2000 | PeteB

Jacqueline, Asuming you mean immersion silver: Advantages - Very flat finish compared to HASL, more easily solderable than bare copper with OSP and more process tolerant than this in our experience, reasonable shelf life, cheaper than immersion gol

Re: silver finishes on pcbs

Electronics Forum | Wed Dec 13 20:30:59 EST 2000 | Dave F

Immersion Silver PCB Surface Plating - Dennis VanBuren 14:21:24 02/01/2000 [Wudja mean "not much luck" searching the archives? What is this haggis???][Is that like saying "what is this chopped liver??"]

Oxidation on PCB's

Electronics Forum | Fri Aug 01 08:10:29 EDT 2008 | scotceltic

Has anyone come across a standard or study (JEDEC, IPC) where it has the recommended shelf life outside of a dry box for immersion silver coated PCB's to prevent oxidation from affecting the soldering process (Both reflow and Wave). I know it will

De-wetting on Immersion Silver finish board

Electronics Forum | Thu Aug 24 13:20:24 EDT 2000 | Murad Kurwa

One of our divisions is having this problem: - De-wetting on the smt pads and componenent termination on the bottom side after top side procssed through reflow. Board finish is immersion silver. ? Any recommendation on what we should check & verify

Info on OSP PCB�s

Electronics Forum | Tue Jun 05 21:14:10 EDT 2001 | davef

You aren't going to post our stuff on your "Hey, I'm the wizard site", are you? Board fab, Pad coatings, OSP 1 OSPs: Imidazole (Via Systems) is good. Entek (Enthone) works, but requires strict thickness control in fab. 2 Enthone CU56 allows one t

Oxidation on PCB's

Electronics Forum | Sun Aug 03 08:27:41 EDT 2008 | davef

IPC-4553, Specification for Immersion Silver Plating for Printed Circuit Boards, 1.4.1 Solderability. This primary function of IAg is to provide a solderable surface finish, suitable for all surface mount and through-hole assembly applications and wi

Pad dissolution on Thick PCB's

Electronics Forum | Wed Apr 26 03:32:29 EDT 2006 | saaitk

Hi all, Has anyone any experience they can share with regard to pad dissolution on PTH's on thick boards. We are using lead free SAC305 on both OSP and Immersion silver finishes and are experiencing difficulties when removing and replacing connector

Re: De-wetting on Immersion Silver finish board

Electronics Forum | Fri Aug 25 05:23:46 EDT 2000 | Wolfgang Busko

Hi Murad, like with many other questions it�s hard to judge without seeing the effect. Assuming that this site you�re talking about is well equiped with knowledge and that they handle their processes normally to everybody�s satisfaction it�s obvious

No-Lead solder defect - No solder on pads

Electronics Forum | Mon Dec 22 19:43:43 EST 2003 | Dean

I have seen this affect on Immersion Tin and OSP. 70 to 90 % of the solder wicks to the lead and forms a "single" homogenous solder mass. This even though the pad was 100 % covered with paste... Evaluated different solder paste...did find variatio

aluminium wire bonding on Electroless Nickel + Immersion gold

Electronics Forum | Mon Aug 27 15:06:29 EDT 2001 | davef

This otta push Wolfgang over the top ... Recommended reading G.G. Harman, Wire Bonding in Microelectronics : Materials, Processes, Reliability, and Yield, 2nd edition, McGraw-Hill Electronic Packaging and Interconnection Series, 1997. G.G. Harman, R

  1 2 Next

cu dewetting on immersion silver pcb. searches for Companies, Equipment, Machines, Suppliers & Information

Count On Tools, Inc.
Count On Tools, Inc.

COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.


2481 Hilton Drive
Gainesville, GA

Phone: (770) 538-0411

Sell Your Used SMT & Test Equipment

Best Reflow Oven

World Source Equipment: Used equipment sale. Hundreds of items on sale.
Assembly Automation Technology

Private label coffee for your company - your logo & message on each bag!