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
Second order correction circuit and method for bandgap voltage reference
Programming method of non-volatile memory device
Medicament delivery device and a method of medicament delivery
Device and implantation system for electrical stimulation of biological systems
Low-coupling oxide media (LCOM)
Modified and stabilized GDF propeptides and uses thereof
Magnetoresistive shield with coupled lateral magnet bias
  Randomly Featured Patents
Crystalline 1.alpha.-hydroxyvitamin D2 and method of purification thereof
Method and apparatus for a digitized CATV network for bundled services
Vacuum apparatus
Method and apparatus for forming subterranean concrete piles
High-speed liquid dispensing modules
Low loss synchronous rectifier for application to clamped-mode power converters
Needle tip guard for percutaneous entry needles
System and method for controlling patient temperature
Alkyl tetrahydrofurfuryl ethers as anionic polymerization modifier in the synthesis of rubbery polymer
Method for attaching spacers in an emission display