Hello Sean,

I have read your reply to tony with regards to the test coupons.We are now
processing the anti caf material with our customer design test coupons.But
unfortunately we cannot fully test in house their test coupon since a
components parts is being soldered to the circuit. Is it possible to
provide me also the test coupon data .thanks



Regards,

Ricky Cadawan
R & D Department
Daeduck Phil. Inc.
Peza,Rosario Cavite
Philippines
Tel. # (046) 437-0747 loc. 319
Cel. # 09205916380



                    Sean Hill
                    <shill@TECHNI        To:     [log in to unmask]
                    TRON.COM>            cc:
                    Sent by:             Subject:     Re: [TN] thermal cycle coupons
                    TechNet
                    <[log in to unmask]
                    org>


                    01/08/2004
                    09:21 AM
                    Please
                    respond to
                    "TechNet
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                    Forum.";
                    Please
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                    Sean Hill






Tony,

I have two types of daisy chain coupons for testing. The coupons are used
for testing CAF,ICDs and registration. We thermal cycle these coupons per
IPC-TM-650 number 2.4.13.1 up to 12 times.
We then inspect the coupons for Laminate degradation and ICDs. Our customer
uses these coupons for CAF testing and thermal cycles them up to 16 times.
If you contact me off line I could email
you the DXF file of the daisy chain coupon and provide more detail to the
test methods of these
coupons.

Best Regards,

Sean Hill
Engineering Manager
TechniTron Inc.
650-962-0770 ext.150
[log in to unmask]

-----Original Message-----
From: Tony Steinke [mailto:[log in to unmask]]
Sent: Wednesday, January 07, 2004 8:23 AM
To: [log in to unmask]
Subject: [TN] thermal cycle coupons


Does any one have knowledge of or can point me in the right direction for
the requirement of making daisy chain
coupons for determination of coupon failure vs. number of thermal cycles.
We
are wanting to update our current material suppliers(and current process)
to
determine
number of thermal cycles before we have failures. Is
there something in IPC which states this.

Tony Steinke

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