Richard Langman resumes & CV records
Resumes
Independent Electrical/Electronic Manufacturing Professional
Location:
Fort Myers und Umgebung, Florida
Industry:
Elektro-/Elektronik-Herstellung
Richard Allen Langman, Age 56Arlington, TX
Richard Langman Phones & Addresses
Arlington, TX
Dallas, TX
Kuna, ID
Centennial, CO
San Antonio, TX
Navarre, FL
Hurlburt Field, FL
Fort Walton Beach, FL
Altus, OK
Panama City, FL
3106 Sunday Song, San Antonio, TX 78245
Work
Position:
Military
Mentions for Richard Allen Langman
Publications & IP owners
Us Patents
Ceramic Substrate For Fine-Line Electrical Circuitry
US Patent:
4340635, Jul 20, 1982
Filed:
Dec 15, 1980
Appl. No.:
6/216397
Inventors:
Richard A. Langman - Lakewood CO
Donald R. Giovanini - Arvada CO
Michael P. Letzig - Broomfield CO
Donald R. Giovanini - Arvada CO
Michael P. Letzig - Broomfield CO
Assignee:
Coors Porcelain Company - Golden CO
International Classification:
B32B 300
US Classification:
428164
Abstract:
In accordance with the invention there is provided a sintered monolithic ceramic substrate for fine-line electrical circuitry, the substrate comprising a base layer containing at least 90% by weight crystalline alumina or beryllia and a thin upper layer containing at least 90% by weight crystalline material the same as that of the base layer but with an average grain size less than that of the crystalline material of the base layer, the upper layer having an irregular interface with the base layer but a planar upper surface with minimal surface irregularities for improved reception of the fine-line circuitry to be applied. Further in accordance with the invention such substrate is made by first forming and firing a ceramic plate of alumina or beryllia ceramic to provide the base layer and then applying and firing a coating of fine grain alumina or beryllia, as the case may be, on the plate to provide the upper layer.
Method Of Manufacturing Ceramic Substrate For Fine-Line Electrical Circuitry
US Patent:
4631160, Dec 23, 1986
Filed:
Nov 4, 1981
Appl. No.:
6/318289
Inventors:
Richard A. Langman - Lakewood CO
Donald R. Giovanini - Arvada CO
Michael P. Letzig - Broomfield CO
Donald R. Giovanini - Arvada CO
Michael P. Letzig - Broomfield CO
Assignee:
Coors Porcelain Company - Golden CO
International Classification:
C04B 3332
US Classification:
264 62
Abstract:
In accordance with the invention there is provided a sintered monolithic ceramic substrate for fine-line electrical circuitry, the substrate comprising a base layer containing at least 90% by weight crystalline alumina or beryllia and a thin upper layer containing at least 90% by weight crystalline material the same as that of the base layer but with an average grain size less than that of the crystalline material of the base layer, the upper layer having an irregular interface with the base layer but a planar upper surface with minimal surface irregularities for improved reception of the fine-line circuitry to be applied. Further in accordance with the invention such substrate is made by first forming and firing a ceramic plate of alumina or beryllia ceramic to provide the base layer and then applying and firing a coating of fine grain alumina or beryllia, as the case may be, on the plate to provide the upper layer.
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