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August 2004

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Subject:
From:
"Dehoyos, Ramon" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Dehoyos, Ramon
Date:
Mon, 30 Aug 2004 11:19:32 -0700
Content-Type:
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text/plain (92 lines)
        183C or  361 F




-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Karen Walters
Sent: Monday, August 30, 2004 1:56 PM
To: [log in to unmask]
Subject: Re: [TN] TAMURA Solder Paste


Yes but they allow to 240 peak temp which is high.  220 should be max and
the liquidus is 179 deg C not 200.  This concerns me.  I think they are
recommending one profile for all boards.




(Embedded image moved to file: pic05436.pcx)



                      [log in to unmask]
                      M                        To:       [log in to unmask]
                      Sent by: TechNet         cc:
                      <[log in to unmask]>        Subject:  Re: [TN] TAMURA Solder Paste


                      08/27/2004 08:11
                      PM
                      Please respond to
                      TechNet E-Mail
                      Forum; Please
                      respond to
                      JonAMo9638






In a message dated 8/27/2004 11:17:50 AM US Eastern Standard Time,
[log in to unmask] writes:
Set peak temp between 210 - 240 deg C
Adjust melting time over 200 deg C for 20 to 60 seconds
Ramp rate < 4 deg C
I don't think the peak is necessarily high, if you are in the lower end of
that range.  215 - 218 C is about normal for my experience for a peak, and
45
seconds above liquidus seems normal.

Jon Moore
..

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