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Subject:	Re: Eutectic alloys?????
From:	"McCullen, Jack T" <[log in to unmask]>
Reply To:	Leadfree Electronics Assembly E-Mail Forum.
Date:	Wed, 1 Aug 2001 16:00:14 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (51 lines)

Werner,

Did they fix it by changing solder alloys?

Jack McCullen

-----Original Message-----
From: Werner Engelmaier [mailto:[log in to unmask]]
Sent: Wednesday, August 01, 2001 1:18 PM
To: [log in to unmask]
Subject: Re: [LF] Eutectic alloys?????


Hi,
I am not so sure that the automotive industry is at the forefront of
soldering technology--only 2 years ago one of the Detroit Big 3 had to
recall
2 years worth of SUVs because 60/40 SJs on CEM-1 [!?] PCBs for the
windshield
wiper controls under-the-hood failed well within the warranty period. CEM-1
not only grossly thermally expands, but swells on H2O-absorption, and the
bad
housing design caused the PCBs to warp.

Werner Engelmaier

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