Polymer thick film heating element on a glass substrate
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United States of America Patent
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-
Jan 28, 2003
Issued Date -
N/A
app pub date -
Sep 14, 2001
filing date -
May 6, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and methods for attaching a heating element to a glass substrate. The heating element is formed of a plurality of conductive polymer thick film inks screen printed on the substrate. The heating element includes a resistive strip or resistor, conductive strips or conductors, and terminal portions, which form part of an electrical circuit. Electrical power applied to the terminal portions causes current to flow through the resistive strip, which generates heat through resistive heating. The heat is transferred to the substrate. The method of applying the heating element to the substrate includes, in one embodiment, screen printing polymer thick film materials onto a surface of a glass substrate to form the circuit conductors and resistive elements and surface mounting other components of the circuit on the substrate.
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