Subject: | |
From: | |
Reply To: | (Leadfree Electronics Assembly Forum) |
Date: | Wed, 17 Aug 2005 06:35:06 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Dave,
I have heard of Palladium over Nickel for wire bond boards but the
problem with Electroplated Palladium or Electroless Palladium over
Nickel for a soldered assembly (other than the cost) is the Palladium
boards display a reduced hole fill and surface mount pad wetting quickly
after the first pass through the SMT process.
Most people who still use Palladium put a final gold layer over the
Palladium such as Electroless Nickel / Electroless Palladium / Immersion
Gold or Electroless Palladium / Immersion Gold.
Thanks
Tony Cosentino
Tekelec
[log in to unmask]
919-460-3656
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of MA/NY DDave
Sent: Tuesday, August 16, 2005 10:39 PM
To: [log in to unmask]
Subject: [LF] PWB (Board) finishes: Pal
Hi IPC LF Listservers,
In an article I recently gave a link for, there was a section on Board
(PWB) finishes for Lead-free.
I have never heard of Palladium or Palladium over Nickel as a board
finish.
I do know about Palladium used in component lead, and lead frame
finishes so I think it was an author mistake.
SO - - -, Does anyone know of Palladium or Palladium over Nickel as a
board finish??
Yours in Engineering, Dave
YiEngr, MA/NY DDave
P.S. Yes I have written the magazine editor, yet I also wanted to ask
here.
------------------------------------------------------------------------
-------Leadfee Mail List provided as a service by IPC using LISTSERV
1.8d To unsubscribe, send a message to [log in to unmask] with following
text in the BODY (NOT the subject field): SIGNOFF Leadfree To
temporarily stop/(start) delivery of Leadree for vacation breaks send:
SET Leadfree NOMAIL/(MAIL) Search previous postings at:
http://listserv.ipc.org/archives Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
------------------------------------------------------------------------
-------
-------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Leadfree
To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
Search previous postings at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-------------------------------------------------------------------------------
|
|
|