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:
Oct. 07, 1980
Filed:
Oct. 23, 1978
Ichiro Shibasaki, Fuji, JP;
Kaoru Ohmura, Fuji, JP;
Takeo Kimura, Fuji, JP;
Hidehiko Kobayashi, Fuji, JP;
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
Deposited on a glass or ceramic substrate for a thin-film microcircuit board such as a hybrid IC board or a transparent electrode is a thin-film laminate, which comprises a dispersion metal thin-film dispersible and evaporable upon application of an energy above a threshold value and an electrical property-imparting film defining a conductor or a resistor. Then a high intensity of light having an energy sufficient to cause dispersion is applied selectively on the thin-film laminate, thereby removing exposed portions of the thin-film laminate as a result of dispersion and evaporation thereof. Unexposed portions of the thin-film laminate provide a desired pattern. The electrical property-imparting film is a thin-film of noble metal such as gold, silver or platinum or a thin film of transparent electrode material such as SnO.sub.2 or In.sub.2 O.sub.3, which is not easily dispersible upon application of the above energy.