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. 05, 2000
Filed:
Feb. 26, 1998
Tetsuya Ishii, Aichi, JP;
Hiroshi Katagiri, Aichi, JP;
Tadashi Shingaki, Mie, JP;
Tatsuya Takemura, Gifu, JP;
NGK Spark Plug Co., Ltd., Nagoya, JP;
Abstract
The multilayer microelectronic circuit comprises a main capacitor dielectric layer, a main capacitor first electrode disposed on one of opposite sides of the main capacitor dielectric layer, a main capacitor second electrode disposed on the other of the opposite sides of the main capacitor dielectric layer in a way as to oppose the main capacitor first electrode through the main capacitor dielectric layer, a first trimming capacitor dielectric layer disposed on a side of the main capacitor first electrode opposite to the main capacitor dielectric layer, a first trimming capacitor electrode disposed on a side of the first trimming capacitor dielectric layer opposite to the main capacitor first electrode in a way as to oppose the main capacitor first electrode through the first trimming capacitor dielectric layer, a second trimming capacitor dielectric layer disposed on a side of the first trimming capacitor electrode opposite to the first trimming capacitor dielectric layer, and a second trimming capacitor electrode disposed on a side of the second trimming capacitor dielectric layer opposite to the first trimming capacitor electrode in a way as to oppose the first trimming capacitor electrode through the second trimming capacitor dielectric layer. The first trimming capacitor electrode is first trimmed for rough adjustment of a capacitance of the circuit. The second trimming capacitor electrode is then trimmed for fine adjustment of the capacitance.