US6460168B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of designing power supply circuit and semiconductor chip
Assignee: Panasonic Holdings Corp
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Filing: 1999-02-10
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Granted: 2002-10-01
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Expires: 2019-02-10
Abstract
Abstract A power supply circuit according to the present invention is a power supply circuit formed on a semiconductor chip, including: an output transistor section outputting a power supply voltage; and a control circuit for controlling the output transistor section. The output transistor section is arranged in the vicinity of an external input/output terminal of the semiconductor chip.
Inventors
- 👤 Akira Yamamoto
- 👤 Shirou Sakiyama
- 👤 Hiroyuki Nakahira
- 👤 Masayoshi Kinoshita
- 👤 Katsuji Satomi
- 👤 Jun Kajiwara
- 👤 Shinichi Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:00
CPC Classifications
H; H10; H10D; H10D84/00; G; G06; G06F; G06F30/00; G06F30/30; G06F30/39; G06F30/392; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1588; H02M7/00; H02M7/003; H10D84/80; H10D84/82; H10D84/83; H10D84/90; H10D84/903; H10D84/907; G06F2119/00; G06F2119/06; H10W; H10W72/00; H10W72/50; H10W72/541; H10W72/5449; H10W72/90; H10W72/931; H10W72/932; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
68 words
A power supply circuit formed on a semiconductor chip, comprising: an output transistor section outputting a power supply voltage; and a control circuit for controlling the output transistor section, wherein the output transistor section is arranged in the vicinity of at least one external input/output terminal of the semiconductor chip, and the power supply circuit provides a converted DC voltage to an internal circuit of the semiconductor chip.
Claim 2
Dependent Claim
68 words
A power supply circuit formed on a semiconductor chip, comprising: an output transistor section outputting a power supply voltage; and a control circuit for controlling the output transistor section, wherein the output transistor section is arranged in the vicinity of at least one external input/output terminal of the semiconductor chip, and the power supply circuit provides a converted DC voltage to an internal circuit of the semiconductor chip.
Claim 3
Dependent Claim
19 words
A power supply circuit according to claim 1 , wherein the output transistor section has a surge protection function.
Claim 4
Dependent Claim
19 words
A power supply circuit according to claim 2 , wherein the output transistor section includes a mesh type transistor.
Claim 5
Dependent Claim
19 words
A power supply circuit according to claim 1 , wherein the output transistor section includes a mesh type transistor.
Claim 6
Dependent Claim
27 words
A power supply circuit according to claim 1 , wherein the power supply circuit is arranged along a periphery of the semiconductor chip excluding four corners thereof.
Claim 7
Dependent Claim
85 words
A power supply circuit according to claim 1 , wherein: the power supply circuit includes a plurality of the external input/output terminals including an output terminal for outputting the power supply voltage, a power supply terminal for inputting a power supply voltage to the output transistor section, and a ground terminal for inputting a ground voltage to the output transistor section, wherein the power supply terminal and the ground terminal are arranged in the vicinity of the output terminal for outputting the power supply voltage.
Claim 8
Dependent Claim
91 words
A power supply circuit according to claim 1 , wherein: the power supply circuit includes a plurality of the external input/output terminals including a plurality of output terminals for outputting the power supply voltage, a plurality of power supply terminals for inputting a power supply voltage to the output transistor section, and a plurality of ground terminals for inputting a ground voltage to the output transistor section, wherein the plurality of output terminals, the plurality of power supply terminals, and the plurality of ground terminals are covered with a common metal.
Claim 9
Dependent Claim
34 words
A power supply circuit according to claim 1 wherein the semiconductor chip is arranged so that a bonding wire connecting the output transistor section with a package which seals the semiconductor chip is shortest.
Claim 10
Dependent Claim
26 words
A power supply circuit according to claim 1 , wherein the output transistor section and the control circuit are arranged in an I/O cell arrangement area.
References Cited (Backward Citations)
US5075577A
Cited
US5099406A
Cited
JPH03212955A
Cited
JPH04267542A
Cited
JPH05259289A
Cited
US5448198A
Cited
JPH0653321A
Cited
US6160417A
Cited
JPH07321293A
Cited
US5512844A
Cited
JPH08153390A
Cited
JPH09162294A
Cited
US5825206A
Cited
US5889415A
Cited
US6278294B1
Cited
US6255850B1
Cited
JP3212955B2
Cited
US6118303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-30 | 2006-04-01 | 2006-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-30 | 2010-04-01 | 2010-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-30 | 2014-04-01 | 2014-10-01 | $7700.00 | Window Closed / Lapsed |