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October 2005

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Subject:
From:
"Whittaker, Dewey (AZ75)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Whittaker, Dewey (AZ75)
Date:
Tue, 11 Oct 2005 11:42:09 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (162 lines)
Usually if they get caught on video tape, the Brass is all over the "
fuzz".
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Charles Caswell
Sent: Tuesday, October 11, 2005 11:40 AM
To: [log in to unmask]
Subject: Re: [TN] RoHS - scary tin whiskers

Have not seen the pictures yet but have seen some from a customer
showing Tin, Zinc, and Cadmium growth under certain test conditions.
That is why they are not allowed in space applications. They even had
one of Brass alloy that had "fuzz" all over it.  

-----Original Message-----
From: Brooks,Bill [mailto:[log in to unmask]]
Sent: Tuesday, 11 October 2005 1:24 PM
To: [log in to unmask]
Subject: Re: [TN] RoHS - scary tin whiskers

Note that they are coming from all over the plating on the connector...
not necessarily just from the solder joints... So tin finishes are also
possible sources for tin whiskers. Whew... scares me worse than Freddy
Kruger at the door for trick-or-treat ever could...

Happy Halloween...

BTW I have pasted the link on a new page on my website... I'm going to
run a lead free blog of interesting things I find out on there for
anyone to use as a quick reference to lead free issues.
The web page is http://www.pcbwizards.com/leadfree.htm

cheers

Bill Brooks - KG6VVP
PCB Design Engineer, C.I.D.+, C.I.I.
Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510 Datron World
Communications, Inc.
_______________________________________
San Diego Chapter of the IPC Designers Council Communications Officer,
Web Manager http://dcchapters.ipc.org/SanDiego/
http://pcbwizards.com

-----Original Message-----
From: Franklin Asbell [mailto:[log in to unmask]]
Sent: Tuesday, October 11, 2005 11:05 AM
To: [log in to unmask]
Subject: Re: [TN] RoHS Process Compliant boards

(chuckle) Wow, impressive growth...Looks more like spider webs than
whiskers...

Franklin



-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bloomquist, Ken
Sent: Tuesday, October 11, 2005 12:53 PM
To: [log in to unmask]
Subject: Re: [TN] RoHS Process Compliant boards

You have to make sure you have the entire link (both lines) in order to
get to the web page. The only way I was able to get it to work was copy
and paste the first line into Internet Explorer, don't open it and copy
and paste the second line to the end of the first line. Hit Enter and it
should work.

KennyB

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Franklin Asbell
Sent: Tuesday, October 11, 2005 10:48 AM
To: [log in to unmask]
Subject: Re: [TN] RoHS Process Compliant boards

I'm having trouble locating the horror pictures...which article exactly?

Franklin

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brooks,Bill
Sent: Tuesday, October 11, 2005 12:11 PM
To: [log in to unmask]
Subject: Re: [TN] RoHS Process Compliant boards

Have you seen some of the horror pictures in the recent article from
advanced packaging? Gives me the chills!

http://ap.pennnet.com/Articles/Article_Display.cfm?Section=ARTCL&ARTICLE
_ID=
233627&VERSION_NUM=2&p=95

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