EP0148506A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Circuit board
Assignee: Hitachi Ltd
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Filing: 1984-12-27
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Granted: —
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Expires: 2004-12-27
Abstract
Abstract Resistors (4; 4a, 4b) are formed on one surface of a board (1; 1a, lb, 1c) having through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h min , 7aa) arranged like a lattice, an electrode (6) is further formed on the surface of these resistors, and the electrodes over the through hole conductors are coaxially removed, thereby forming substantially disk-like resistors (4a, 4b).
Inventors
- 👤 Minoru Tanaka
- 👤 Kazuo Hirota
- 👤 Akira Murata
- 👤 Fumiuki Kobayashi
- 👤 Takaji Takenaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 15:54
CPC Classifications
H; H01; H01C; H01C13/00; H01C13/02; H01C1/00; H01C1/14; H01C1/142; H05; H05K; H05K1/00; H05K1/16; H05K1/167; H05K1/02; H05K1/11; H05K1/115; H05K1/116; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0317; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09609; H05K2203/00; H05K2203/03; H05K2203/0361; H05K3/00; H05K3/38; H05K3/388; H05K3/40; H05K3/42
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
83 words
A circuit board in which a plurality of resistors are arranged on a board (1; la, lb, lc), comprising at least: (a) circular electrodes (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa) arranged at the centers; (b) resistors (4; 4a, 4b) arranged coaxially with said circular electrodes, each of said resistors having a radius larger than a radius of each of said circular electrodes; and (c) an external electrode (6) arranged in the outer peripheral portions of said resistors.
Claim 2
Dependent Claim
83 words
A circuit board in which a plurality of resistors are arranged on a board (1; la, lb, lc), comprising at least: (a) circular electrodes (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa) arranged at the centers; (b) resistors (4; 4a, 4b) arranged coaxially with said circular electrodes, each of said resistors having a radius larger than a radius of each of said circular electrodes; and (c) an external electrode (6) arranged in the outer peripheral portions of said resistors.
Claim 3
Dependent Claim
31 words
A circuit board according to claim 1, wherein said circular electrodes are through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa) formed on said board.
Claim 4
Dependent Claim
34 words
A circuit board according to claim 1, wherein a plurality of said circular electrodes and resistors are provided as sets and the resistor of each set is connected to one of said external electrodes.
Claim 5
Dependent Claim
25 words
A circuit board according to claim 3, wherein said external electrode is a through hole conductor (6) formed on said board (1; la, ib, lc).
Claim 6
Dependent Claim
15 words
A circuit board according to claim 3, wherein said resistors are used as terminal resistors.
Claim 7
Dependent Claim
104 words
A circuit board comprising at least: (a) a board (1; la, lb, lc) having a plurality of through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa); (b) resistors (4; 4a, 4b) formed on one surface of said board so as to be electrically connected to said through hole conductors on said board; and (c) an electrode (6) formed on the surfaces of said resistors, the upper portions which face said through hole conductors being coaxially removed such that a radius of each of said upper portions is larger than a radius of each of said through hole conductors.
Claim 8
Dependent Claim
104 words
A circuit board comprising at least: (a) a board (1; la, lb, lc) having a plurality of through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa); (b) resistors (4; 4a, 4b) formed on one surface of said board so as to be electrically connected to said through hole conductors on said board; and (c) an electrode (6) formed on the surfaces of said resistors, the upper portions which face said through hole conductors being coaxially removed such that a radius of each of said upper portions is larger than a radius of each of said through hole conductors.
Claim 9
Dependent Claim
28 words
A circuit board according to claim 6, wherein a plurality of said electrodes are coaxially removed and the resistors immediately under the removed electrodes are used as resistor-elements.
Claim 10
Dependent Claim
16 words
A circuit board according to claim 7, wherein said resistor elements are used as terminal resistors.
Claim 11
Dependent Claim
103 words
A circuit board comprising at least: (a) a board (1; la, lb, lc) having a plurality of through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa); (b) resistors (4; 4a, 4b) formed on one surface of said board so as to be electrically connected to said through hole conductors on said board; and (c) an electrode (6) formed on the surfaces of said resistors, the upper portions facing said through hole conductors being coaxially removed such that a radius of each of said upper portions is larger than a radius of each of said through hole conductors.
Claim 12
Dependent Claim
103 words
A circuit board comprising at least: (a) a board (1; la, lb, lc) having a plurality of through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa); (b) resistors (4; 4a, 4b) formed on one surface of said board so as to be electrically connected to said through hole conductors on said board; and (c) an electrode (6) formed on the surfaces of said resistors, the upper portions facing said through hole conductors being coaxially removed such that a radius of each of said upper portions is larger than a radius of each of said through hole conductors.
Claim 13
Dependent Claim
17 words
A circuit board according to claim 9, wherein said remaining electrodes are constituted as individual electrodes (2h').
Claim 14
Dependent Claim
18 words
A circuit board according to claim 10, wherein electronic circuit elements are connected to said individual electrodes (2h').
References Cited (Backward Citations)
No citation records indexed.
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