Computer-aided method for producing resistive tapers and resistive taper produced thereby
First Claim
Patent Images
1. A method for producing a desired resistive taper under computer control for controlling surface resistivity comprising the steps of:
- correlating along a function defining said desired resistive taper the magnitudes of surface resistivity to magnitudes representing optical gray levels to be outputted by said computer;
creating a computer-controlled optically graded pattern of said optical group levels on an phototool corresponding to said desired resistive taper; and
photochemically etching said computer-controlled optically graded pattern onto an insulating substrate having a conductive coating using said phototool.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for producing a desired resistive taper under computer control for controlling the surface resistivity of an electrical element, which comprises the steps of creating a computer controlled optically graded pattern corresponding to the desired resistive taper, producing a phototool from the graded pattern and using the phototool to photochemically etch the graded pattern onto a substrate.
-
Citations
11 Claims
-
1. A method for producing a desired resistive taper under computer control for controlling surface resistivity comprising the steps of:
-
correlating along a function defining said desired resistive taper the magnitudes of surface resistivity to magnitudes representing optical gray levels to be outputted by said computer; creating a computer-controlled optically graded pattern of said optical group levels on an phototool corresponding to said desired resistive taper; and photochemically etching said computer-controlled optically graded pattern onto an insulating substrate having a conductive coating using said phototool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification