Patent ID: 6930009

Claim:
A method for making a plurality of electrical components and elements on a monolithic substrate having a first and a second parallel surface, essentially of a crystalline or polycrystalline wide-bandgap semiconductor compound in oxygen containing atmosphere, said method comprising, the steps of: a. directing a focused laser beam onto a first surface portion of said substrate and causing relative motion between said beam and substrate so as to laser synthesize a conductive hole or via through said substrate between said first and second parallel surfaces thereof, said conductive hole or via having a first and second end; b. directing said laser beam onto a second surface portion of said substrate and causing relative motion between said beam and substrate so as to laser synthesize an area thereon which is converted to a semiconductor material and which is connected to said first end of said conductive via; c. directing said laser beam onto a third surface portion of said substrate and causing relative motion between said beam and substrate so as to delineate a continuous conductive trace connected to said semiconductive material on said first parallel surface to said second parallel surface as said laser beam traverses a surface of said substrate connecting said first and second parallel surfaces, and terminating said trace by forming an electrical tab thereon by laser synthesis with said laser beam; and d. directing said laser beam onto a fourth surface portion of said substrate and causing relative motion between said beam and substrate so as to laser synthesize an area thereon which is converted to an electrical conductive area connected to said second end of said conductive via, to thereby provide an electrical connection to said semiconductive material on a reverse side of said substrate.