The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 1994
Filed:
Feb. 06, 1992
Applicant:
Inventors:
Brian M Ditchek, Milford, MA (US);
Marvin Tabasky, Peabody, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257281 ; 257 45 ; 257287 ;
Abstract
Electrical ohmic contacts are made to a matrix of silicon having conductive rods embedded therein without making contact to any of the rods. Those rods which extend to the surface in the selected area of the matrix to be contacted are etched to form holes. The holes are filled with insulating polycrystalline silicon. The region of the selected area is heavily doped, and an ohmic contact member is made thereto. The underlying rods are spaced from the ohmic contact member and the heavily-doped region by intervening polycrystalline silicon.