LEADFREE Archives

April 2000

Leadfree@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"<Ichi $B!! (Bsakamoto>" <[log in to unmask]>
Reply To:
Leadfree Electronics Assembly E-Mail Forum.
Date:
Tue, 18 Apr 2000 19:46:27 +0900
Content-Type:
text/plain
Parts/Attachments:
text/plain (26 lines)
Dear Mr.Nimmo,

I think it is sure that the standard test of Whisker is 50C.
It is because that Whisker fromation is depend on
Sn recrystallization.
However, the organic impurities  $B!" (Bthe intermetallics or oxidation
 increase the probablity of Whisker fromation.
In this case,it isn't enough only in 50 C test.
Therefore, recently, the 125 C heat cycle test, 95C 95% humidity
 test are well done.

thanks

################################################################
Leadfree E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask]
with following text in the body:
To subscribe:   SUBSCRIBE Leadfree <your full name>
To unsubscribe:   SIGNOFF Leadfree
###############################################################
Please visit IPC's Center for Lead-Free Electronics Assembly
(http://www.leadfree.org ) for additional information.
For technical support contact Keach Sasamori [log in to unmask] or 847-790-5315.
################################################################

ATOM RSS1 RSS2