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Date: | Mon, 21 Jul 1997 11:02:52 -0700 |
Content-Type: | text/plain |
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Richard,
It is true that reflow parameters are important not only for the
soldering process but also for components! We have used the Datapaq
Reflow Tracker with great success. It is what is often termed a
"temperature mole". The tracker rides in the furnace with the part
and has thermocouple probes which take measurements. Trackers can
transmit data to a computer which yields real time analysis of the
part, i.e., temps, ramps, max peak, etc.
Frank Hinojos
Watkins-Johnson Co.
______________________________ Reply Separator _________________________________
Subject: Reflow oven temperature
Author: [log in to unmask] at INTERNET
Date: 7/21/97 4:24 PM
I am more familiar with test than board manufacture and would welcome
an answer to a simple question. The quality of the connection depends
on a number of characteristics of a reflow oven - pre-heat,
temperature and time in the oven. CORRECT?
If so, is there something I can attach to boards as they go through
the system to ensure that the settings are correct for the particular
boards? I am thinking of a substance that changes characteristics,
say colour, at a rate depending on the temperature. We manufacture
small quantities but large variety and thus the settings are
potentially needing changing regularly.
I want to eliminate faults before I have to test. I would normally
ask the in-house expert but he is taking a well earned rest.
Thanks in advance.
Richard Philp,
Test Technologist
Matra BAe Dynamics
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