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:
Sep. 22, 2015
Filed:
Feb. 17, 2011
Takashi Naito, Funabashi, JP;
Takuya Aoyagi, Tsuchiura, JP;
Shinichi Tachizono, Narita, JP;
Kei Yoshimura, Inzai, JP;
Yuji Hashiba, Narita, JP;
Takashi Naito, Funabashi, JP;
Takuya Aoyagi, Tsuchiura, JP;
Shinichi Tachizono, Narita, JP;
Kei Yoshimura, Inzai, JP;
Yuji Hashiba, Narita, JP;
HITACHI, LTD., Tokyo, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
Disclosed is a constitution formed from an oxide of an element having a smaller work function than aluminum. This oxide is comprises an oxide of vanadium (V), an oxide of an alkaline earth metal and an oxide of an alkali metal. The elements for the alkaline earth metal are comprise one or more elements out of the elements calcium (Ca), strontium (Sr) and barium (Ba) and at least contain barium. The elements for the alkali metal include at least one or more of sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs). When the element vanadium is included as vanadium pentoxide (VO), the vanadium pentoxide content is 40-70 wt %. Thus, a glass composition for aluminum electrode wiring with an apparent work function for electrode wiring that is smaller than the work function for aluminum (Al) can be provided without the inclusion of lead.