Resources Contact Us Home
Photolithographic process for producing etched patterns on the surface of fine tubes, wires or other three dimensional structures

Image Number 8 for United States Patent #6391502.

The present invention involves a photolithographic process, and apparatus and material for use therein, for producing etched or eroded areas or holes in a selected pattern on or in the surface of fine workpieces, such as small diameter tubes. One aspect of the present invention is a photolithographic process for producing a selected pattern on a nonplanar surface of a workpiece using at least one mask to define the selected pattern. The process includes the acts of applying a photoresist material to the workpiece and aligning the mask with the nonplanar surface of the workpiece. The mask may have an inner surface that corresponds to the nonplanar surface. The process may also include the acts of exposing and developing the photoresist material.

  Recently Added Patents
Co-map communication operator
Techniques for image segment accumulation in document rendering
System and method for netbackup data decryption in a high latency low bandwidth environment
Nonvolatile semiconductor memory device and method for manufacturing the same
Image forming apparatus and method of translating virtual memory address into physical memory address
Signal processing and tiered signal encoding
Data unit receiver and sender control method
  Randomly Featured Patents
Temperature and humidity controlled processing system
Chair with control system
Handle for a garden nozzle
Verifying and identifying incoming PBX calls on mobile devices
Distributed force indexing system
Open-ended wrench
Mattress cushion
Method for cleaning a tub in a washing machine and a washing machine performing the same
Semiconductor memory device layout comprising high impurity well tap areas for supplying well voltages to N wells and P wells
Antimicrobial ultraviolet irradiation of connector for continuous ambulatory peritoneal dialysis