Electric heating – Heating devices – With heating unit structure
Patent
1997-10-03
2000-09-05
Jeffery, John A.
Electric heating
Heating devices
With heating unit structure
219209, 174250, 338314, H05B 316, H05B 100, H05K 100, H01C 1012
Patent
active
061146749
ABSTRACT:
A multilayer circuit board and an associated heating apparatus is provided for heating electrical components. The multilayer circuit board includes a trace layer having at least one electrical trace terminating with a contact pad that is positioned to electrically contact a respective lead of an electrical component mounted upon the multilayer circuit board. The multilayer circuit board also includes a heating layer disposed in thermal contact with the electrical component mounted upon the multilayer circuit board. The heating layer includes a first electrically resistive heating element disposed upon an insulating substrate in general alignment with the electrical component mounted upon the multilayer circuit board. The electrically resistive heating element provides heat to maintain the operating temperature of the electrical component within a desired range. By increasing the operating temperature of the electrical component, the multilayer circuit board allows less expensive, commercial grade electronics to be utilized which would otherwise have been susceptible to failure at lower temperatures.
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Baugh Walter Thomas
Kusek Stephen Mark
Wessling, III Francis
Jeffery John A.
McDonnell Douglas Corporation
Robinson Daniel L.
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