amazing the initiative got passed without any clue of the alternative
solution...page 47 is scary.  It is brave new world:  the engineering and
science look like politics with "Catherine Harris" in EU..fuzzy logic in the
works..
                             jk

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ingemar Hernefjord
Sent: Wednesday, December 14, 2005 5:07 PM
To: [log in to unmask]
Subject: [TN] SV: [TN] SV: [TN] Qualification of the Pb-free capable
manufacturers


http://www.ul.com/pwb/LeadfreeAndPresentationProceedings.pdf

page 38. what do they point at then?

Inge

-----Ursprungligt meddelande-----
Från: TechNet [mailto:[log in to unmask]] För Werner Engelmaier
Skickat: den 14 december 2005 20:56
Till: [log in to unmask]
Ämne: Re: [TN] SV: [TN] Qualification of the Pb-free capable
manufacturers

Hi Inge,
I do not know abput UL's proposal, but there are some defined
conditions:
T260, T288, T300 & T320 defining temperatures at which time to
delamination is
measured up to 45 minutes--I also do not know who came up with this
measure
[288°C???]. Standard FR-4 has a T260 of less thasn 30 minutes and a T288
of less
than 5 minutes, whereas a high Tg/highTd material has a T288 of 45
minutes and
a T320 of about 25 minutes.

Werner

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