Patent ID: 6889425

Claim:
A method for producing a resistive heating element, the method comprising the steps of: a) physically processing a substrate by mechanical machining to form at least one recess track at at least one side of said substrate; b) applying, following step a), an electrically insulating material onto said substrate to seat within said recess track and to coat raised portions of said substrate delimiting said recess track; c) applying, following step b), an electrically conducting material to seat within said recess track and to cover at least portions of said insulating material; and d) evenly removing, following step c), said electrically conducting material in a substantially planer fashion until at least said conducting material is removed from said raised portions of said substrate, thereby forming a conductive path within said recess track which is insulated from said substrate by said electrically insulating material, wherein said substrate, said recess track, said electrically insulating material, and said electrically conducting material are selected, structured, and dimensioned to form a resistive heater element.