Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1997-11-19
1999-10-26
Sparks, Donald
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361302, 3613062, 361761, 361763, 361782, H01G 435, H05K 116, H05K 111
Patent
active
059739290
ABSTRACT:
A circuit board having a printed capacitor whose capacitance is easily adjusted includes a plurality of through-holes arranged in arrays and electrically connected to each other via conductive films. Therefore, first and second electrode portions are arranged to oppose each other, and form a printed capacitor. The capacitance of the capacitor can be adjusted by the number and diameter of through-holes, and the interval between each two adjacent through-holes. Therefore, even when a large-capacitance capacitor is to be formed, the printed capacitor can be rendered compact.
REFERENCES:
patent: Re35064 (1995-10-01), Hernandez
patent: 3191098 (1965-06-01), Fuller
patent: 4926549 (1990-05-01), Yoshizawa et al.
patent: 5055966 (1991-10-01), Smith et al.
patent: 5197892 (1993-03-01), Yoshizawa et al.
IBM Technical Disclosure Bulletin Multilayer Ceramic Sandwiches' by C. McIntosh vol. 16 No. 1 p. 43, Jun. 1973.
Arakawa Tomoyasu
Inagawa Hideho
Ohsaka Tohru
Otaki Toru
Takeuchi Yasushi
Canon Kabushiki Kaisha
Sparks Donald
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