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Title: Microminiature coaxial cable and method of manufacture

Abstract

A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 [mu]m thick and from 150 to 200 [mu]m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately, the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microspheres to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanicalmore » abrasion. 2 figs.« less

Inventors:
Issue Date:
OSTI Identifier:
7267881
Patent Number(s):
4816618 A
Application Number:
PPN: US 6-921792
Assignee:
Univ. of California, Berkeley, CA (United States) PTO; EDB-94-116988
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 15 Oct 1986
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; COAXIAL CABLES; FABRICATION; MINIATURIZATION; ELECTRIC CONDUCTORS; SPRAYED COATINGS; VAPOR DEPOSITED COATINGS; CHEMICAL VAPOR DEPOSITION; DIELECTRIC MATERIALS; METALS; REINFORCED MATERIALS; SPRAY COATING; VACUUM COATING; CABLES; CHEMICAL COATING; COATINGS; CONDUCTOR DEVICES; DEPOSITION; ELECTRIC CABLES; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; MATERIALS; SURFACE COATING; 360601* - Other Materials- Preparation & Manufacture; 426000 - Engineering- Components, Electron Devices & Circuits- (1990-)

Citation Formats

Bongianni, W.L. Microminiature coaxial cable and method of manufacture. United States: N. p., 1989. Web.
Bongianni, W.L. Microminiature coaxial cable and method of manufacture. United States.
Bongianni, W.L. Tue . "Microminiature coaxial cable and method of manufacture". United States.
@article{osti_7267881,
title = {Microminiature coaxial cable and method of manufacture},
author = {Bongianni, W.L.},
abstractNote = {A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 [mu]m thick and from 150 to 200 [mu]m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately, the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric. The cable strength may be increased by adding glass microfilament fibers or glass microspheres to the solution of polystyrene and polyethylene. Further, the outer conductive layer may be applied by electroless deposition in an aqueous solution rather than by vacuum deposition. A thin coating of parylene is preferably applied to the outer conductor to prevent its oxidation and inhibit mechanical abrasion. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}