Heater and method of manufacturing the same

Details Heater and method of manufacturing the same Heater and method of manufacturing the same

2008-03-18

2008-03-18

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

C219S544000, C219S548000, C219S121430, C219S443100, C338S304000, C118S725000

Reexamination Certificate

active

11484284

ABSTRACT:
A heater including a plate-shaped substrate having a heating surface for heating an object and a heater element provided in the substrate or on its surface. A central axis C2of a circumscribed circle of the heater element and a central axis C1of the substrate are not on the same axis and a gap exists between the axes. When manufacturing the heater, a central axis C1of a resistant heater is specified, thermal uniformity of the heating surface of a preliminary substrate is evaluated, and a central axis C2of the substrate is specified. The central axis C2is specified at a position where the thermal uniformity of the heating surface is superior to a case where the central axis C2of the substrate is located on the central axis C1. Then a substrate having the central axis C2is formed by subjecting the preliminary substrate to grinding processing.

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