The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2005
Filed:
Feb. 25, 2003
Ulrich Goetz, Buching, DE;
Ulrich Goetz, Buching, DE;
Sintec Keramik GmbH & Co. KG, Halblech, DE;
Abstract
Method for producing a resistive heating element by coating a substrate with an electrically insulating material from the gaseous phase, depositing an electrically conducting material from the gaseous phase onto the layer of insulating material deposited onto the substrate, wherein the layer of conducting material deposited onto the layer of insulating material is subsequently partially mechanically removed thereby forming at least one conductor path. The substrate is machined before depositing the insulating material thereby forming at least one recess provided for receiving the conductor path. The layers of insulating material and conducting material are deposited onto the mechanically processed substrate. Finally, the layer of conducting material is evenly removed until at least the conducting material has been completely removed from the elevated regions of the substrate delimiting the recess of the conductor path, thereby forming the conductor path. The invention also concerns a resistive heating element produced in this fashion.