Thick film circuit with fuse
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 2, 2003
Grant Date -
Jul 25, 2002
app pub date -
Jan 22, 2001
filing date -
Jan 24, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A thick film circuit on an insulating substrate includes a thermal fuse. The circuit includes a conductive strip, which may be sufficiently resistive to comprise the resistor of an automotive fan motor controller, which is made of a material dissolved by a solder which melts at a predetermined temperature. When an abnormal event occurs which raises the temperature of the circuit, the solder melts and dissolves the underlying conductive strip. The solder and melted material of the strip then coalesce into one or more droplets thereby breaking the circuit.
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Cited Art Landscape
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