US6084780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit board with high electronic component density
Assignee: Toshiba Corp
•
Filing: 1997-01-28
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Granted: 2000-07-04
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Expires: 2017-01-28
Abstract
Abstract A printed-circuit board (10) is provided with a main printed-wiring board (12) having a first conductor pattern (16), and first electronic components (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern. Component units (22) are mounted on the main printed-wiring board. Each of the component units includes an auxiliary printed-wiring board (24) having a second conductor pattern (28), and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern. Each component unit is mounted on the main printed-wiring board, covering one first electronic component (18). Each second conductor pattern is electrically connected to the first conductor pattern.
Inventors
- 👤 Akihiko Happoya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/14; H05K1/141; H05K1/147; H05K1/0272; H05K1/0284; H05K1/18; H05K1/182; H05K2201/00; H05K2201/04; H05K2201/049; H05K2201/09; H05K2201/09009; H05K2201/09036; H05K2201/09063; H05K2201/09072; H05K2201/09145; H05K2201/09181; H05K2201/10; H05K2201/10431; H05K2201/10507; H05K2201/10515; H05K2201/10613; H05K2201/10621; H05K2201/10689; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3431; H05K3/3442; H05K3/36; H05K3/361; H05K3/363; H05K3/368
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
161 words
A printed-circuit board comprising: a main printed-wiring board (12) having a first conductor pattern (16); a first electronic component (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern; an auxiliary printed-wiring board (24) mounted on the main printed-wiring board, covering the first electronic component, and having a second conductor pattern (28) electrically connected to the first conductor pattern; and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor patterns, the auxiliary printed-wiring board having an upper surface, two opposite side surfaces, and a lower surface in which a recess for storing the first electronic component is formed, the second conductor pattern being formed on the upper and side surfaces of the auxiliary printed-wiring board and including wires which are provided on the side surfaces, connected to the first conductor pattern, wherein the auxiliary printed-wiring board (24) has a through hole (38) communicating with the recess (36).
Claim 2
Dependent Claim
161 words
A printed-circuit board comprising: a main printed-wiring board (12) having a first conductor pattern (16); a first electronic component (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern; an auxiliary printed-wiring board (24) mounted on the main printed-wiring board, covering the first electronic component, and having a second conductor pattern (28) electrically connected to the first conductor pattern; and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor patterns, the auxiliary printed-wiring board having an upper surface, two opposite side surfaces, and a lower surface in which a recess for storing the first electronic component is formed, the second conductor pattern being formed on the upper and side surfaces of the auxiliary printed-wiring board and including wires which are provided on the side surfaces, connected to the first conductor pattern, wherein the auxiliary printed-wiring board (24) has a through hole (38) communicating with the recess (36).
Claim 3
Dependent Claim
27 words
A printed-circuit board according to claim 3, wherein the auxiliary printed-wiring board (24) has the through hole (38) further storing a part of the first electronic component(18).
Claim 4
Dependent Claim
38 words
A printed-circuit board according to claim 3, wherein the first conductor pattern (16) includes a pad (14) to which the first electronic component (18) is connected, and another pad (14) to which the second conductor pattern is connected.
Claim 5
Dependent Claim
219 words
A printed-circuit board comprising: a main printed-wiring board (12) having a first conductor pattern (14); a first electronic component (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern; and a component unit (22) including an auxiliary printed-wiring board (24) having a second conductor pattern (28) and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern; wherein the component unit (22) is mounted on the main printed-wiring board (12), covering the first electronic component (18), and the second conductor pattern (28) is electrically connected to the first conductor pattern, the auxiliary printed-wiring board having an upper surface, two opposite side surfaces, and a lower surface in which a recess for storing the first electronic component is formed, the second conductor pattern being formed on the upper and side surfaces of the auxiliary printed-wiring board and including wires which are provided on the side surfaces, connected to the first conductor pattern, and the auxiliary printed-wiring board (24) of the component unit (22) is large enough to cover a plurality of first electronic components (18) mounted on the main printed-wiring board (12), and a plurality of second electronic components (32) are mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern (28).
Claim 6
Dependent Claim
219 words
A printed-circuit board comprising: a main printed-wiring board (12) having a first conductor pattern (14); a first electronic component (18) mounted on the main printed-wiring board and electrically connected to the first conductor pattern; and a component unit (22) including an auxiliary printed-wiring board (24) having a second conductor pattern (28) and a second electronic component (32) mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern; wherein the component unit (22) is mounted on the main printed-wiring board (12), covering the first electronic component (18), and the second conductor pattern (28) is electrically connected to the first conductor pattern, the auxiliary printed-wiring board having an upper surface, two opposite side surfaces, and a lower surface in which a recess for storing the first electronic component is formed, the second conductor pattern being formed on the upper and side surfaces of the auxiliary printed-wiring board and including wires which are provided on the side surfaces, connected to the first conductor pattern, and the auxiliary printed-wiring board (24) of the component unit (22) is large enough to cover a plurality of first electronic components (18) mounted on the main printed-wiring board (12), and a plurality of second electronic components (32) are mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern (28).
Claim 7
Dependent Claim
30 words
A printed-circuit board according to claim 9, wherein another component unit (22) is mounted on the component unit (22), covering the second electronic component (32) provided on the component unit.
Claim 8
Dependent Claim
126 words
A printed-circuit board comprising: a main printed-wiring board having a first conductor pattern; a first electronic component mounted on the main printed-wiring board and electrically connected to the first conductor pattern; an auxiliary printed-wiring board mounted on the main printed-wiring board, covering the first electronic component, and having a second conductor pattern electrically connected to the first conductor pattern; and a second electronic component mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern; the auxiliary printed-wiring board having an upper surface on which the second conductor pattern is formed, a lower surface in which a recess for storing the first electronic component is formed, and a through hole communicating with the recess and storing a part of the first electronic component.
Claim 9
Dependent Claim
126 words
A printed-circuit board comprising: a main printed-wiring board having a first conductor pattern; a first electronic component mounted on the main printed-wiring board and electrically connected to the first conductor pattern; an auxiliary printed-wiring board mounted on the main printed-wiring board, covering the first electronic component, and having a second conductor pattern electrically connected to the first conductor pattern; and a second electronic component mounted on the auxiliary printed-wiring board and electrically connected to the second conductor pattern; the auxiliary printed-wiring board having an upper surface on which the second conductor pattern is formed, a lower surface in which a recess for storing the first electronic component is formed, and a through hole communicating with the recess and storing a part of the first electronic component.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |