Patent ID: 7361869
Filing Date: 2008-04-22
Classification: C23C,F24H,H01C,H05B,Y10T

Abstract:
1. A heater adapted for fixed placement proximate a separate and external part or medium to be heated and defining a shape commensurate with the part or medium to be heated, the heater comprising: a complex shaped substrate; a nonconductive layer formed over the substrate; and an electrically conductive resistive layer formed on the nonconductive layer by a process of forming a material in the form of particles onto the nonconductive layer and subsequently and selectively removing areas of the material using a laser to form a complex contour pattern, wherein removing areas of the material creates a desired resistance of the electrically conductive resistive layer such that at least a portion of the particles are micro-welded along a length of the pattern and local oxides are brought into the pattern to fine tune an electrical resistance along the length of the pattern.