Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Retransmission and retransmission request in data communication systems
Regenerative braking control to mitigate powertrain oscillation
Touch panel structure and manufacturing method thereof
Suspension with flexure having laminated structure and bonding pads on opposing surfaces thereof, and head gimbal assembly and disk drive unit with the same
Modular storage system
Dielectric insulation medium
Method of forming solderable side-surface terminals of quad no-lead frame (QFN) integrated circuit packages
  Randomly Featured Patents
Methods of treating hypertriglyceridemia
Frequency conversion
Cryogenic distillation system for air separation
Bottle
Organic EL element and organic EL device
Initial terminal tester
Fishing lure with chum passage
Sectional frame and sectional insert
Hypoglycaemically active 2-(phenylalkyl- or -alkenyl hydrazono)-propionic acid derivatives
Pipe for use in systems for hot gases