US5406232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor capacitor element and a circuit employing the same
Assignee: Compaq Computer Corp
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Filing: 1993-07-28
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Granted: 1995-04-11
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Expires: 2013-07-28
Abstract
Abstract A composite semiconductor capacitor element, applicable to various kinds of circuits to reduce the influence of parasitic capacitance therein, includes two semiconductor capacitor elements connected in parallel by connecting terminals which have parasitic capacitances to terminals which do not have parasitic capacitances. Alternatively, two such semiconductor capacitor elements are connected in series by connecting terminals which have parasitic capacitances to each other. Hence, parasitic capacitances at the respective terminals are equal to each other. In addition, as compared with a conventional structure wherein a greater number of parasitic capacitances are connected to one terminal than to the other terminal, the parasitic capacitances are smaller at each terminal side.
Inventors
- 👤 Yasuhiro Hashimoto
- 👤 Motofumi Tokuriki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:26
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/201; H10D84/204; H10D84/212; H03; H03B; H03B5/00; H03B5/20; H03B5/24; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2821; H03B2200/00; H03B2200/003; H03B2200/004
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
107 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element and a second semiconductor capacitor element, each of said first and second semiconductor capacitor elements comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal, and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and second semiconductor capacitor elements thereby being connected in parallel.
Claim 2
Dependent Claim
107 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element and a second semiconductor capacitor element, each of said first and second semiconductor capacitor elements comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal, and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and second semiconductor capacitor elements thereby being connected in parallel.
Claim 3
Dependent Claim
78 words
A semiconductor capacitor element according to claim 1, each of said first and second semiconductor capacitor elements comprising: a semiconductor substrate having a first conductivity type; a lower electrode region defined the surface of said semiconductor substrate and having an opposite conductivity type, relatively to said semiconductor substrate, and connected to said second terminal; a dielectric film formed on said lower electrode region; and an upper electrode formed on said dielectric film and connected to said first terminal.
Claim 4
Dependent Claim
20 words
A semiconductor capacitor element according to claim 1, further comprising: a plurality of said parallel-connected capacitor elements connected in parallel.
Claim 5
Dependent Claim
20 words
A semiconductor capacitor element according to claim 1, further comprising: a plurality of said parallel-connected capacitor elements connected in series.
Claim 6
Dependent Claim
150 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 7
Dependent Claim
150 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 8
Dependent Claim
150 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal: a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 9
Dependent Claim
150 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal: a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 10
Dependent Claim
151 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 11
Dependent Claim
151 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in parallel.
Claim 12
Dependent Claim
85 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element and a second semiconductor capacitor element, each of said first and second semiconductor capacitor elements comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first and second semiconductor capacitor element thereby being connected in series.
Claim 13
Dependent Claim
85 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element and a second semiconductor capacitor element, each of said first and second semiconductor capacitor elements comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first and second semiconductor capacitor element thereby being connected in series.
Claim 14
Dependent Claim
77 words
A semiconductor capacitor element according to claim 8, each of said first and second semiconductor capacitor elements comprising: a semiconductor substrate having a first conductivity type; a lower electrode region defined in the surface of said semiconductor substrate and having an opposite conductivity type to said semiconductor substrate and connected to said second terminal; a dielectric film formed on said lower electrode region; and an upper electrode formed on said dielectric film connected to said first terminal.
Claim 15
Dependent Claim
20 words
A semiconductor capacitor element according to claim 8, further comprising: a plurality of series-connected capacitor elements are connected in parallel.
Claim 16
Dependent Claim
19 words
A semiconductor capacitor element according to claim 8 further comprising: a plurality of series-connected capacitor elements connected in series.
Claim 17
Dependent Claim
128 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 18
Dependent Claim
128 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 19
Dependent Claim
128 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 20
Dependent Claim
128 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 21
Dependent Claim
129 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 22
Dependent Claim
129 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the respective emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; a second semiconductor capacitor element having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; and said second terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element, said first semiconductor capacitor element and said second semiconductor capacitor element thereby being connected in series.
Claim 23
Dependent Claim
163 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements further comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
Claim 24
Dependent Claim
163 words
A semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements further comprising a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
Claim 25
Dependent Claim
81 words
A semiconductor capacitor element according to claim 15, each of said first, second, third, and fourth semiconductor capacitor elements comprising: a semiconductor substrate having a first conductivity type; a lower electrode region defined on the surface of said semiconductor substrate and having an opposite conductivity type, relatively to said semiconductor substrate, and connected to said second terminal; a dielectric film formed on said lower electrode region; and an upper electrode formed on said dielectric film and connected to said first terminal.
Claim 26
Dependent Claim
18 words
A semiconductor capacitor according to claim 15, further comprising: a plurality of parallel-connected capacitor elements connected in parallel.
Claim 27
Dependent Claim
184 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
Claim 28
Dependent Claim
184 words
A semiconductor circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
Claim 29
Dependent Claim
183 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor elements, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected said first terminal of said first semiconductor capacitor element in series.
Claim 30
Dependent Claim
183 words
An oscillator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor elements, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected said first terminal of said first semiconductor capacitor element in series.
Claim 31
Dependent Claim
185 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
Claim 32
Dependent Claim
185 words
A mono-stable multivibrator circuit comprising a pair of transistors and a semiconductor capacitor element connected between the emitters of the pair of transistors, said semiconductor capacitor element comprising: a first semiconductor capacitor element, a second semiconductor capacitor element, a third semiconductor capacitor element and a fourth semiconductor capacitor element, each of said semiconductor capacitor elements having a first terminal, a second terminal, a regular capacitance formed between the first and second terminals and a parasitic capacitance formed at the second terminal; said first terminal of said first semiconductor capacitor element being connected to said second terminal of said second semiconductor capacitor element and said first terminal of said second semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element, said first and said second semiconductor capacitor elements thereby being connected in parallel; and said second terminal of said third semiconductor capacitor element being connected to said second terminal of said first semiconductor capacitor element in series and said second terminal of said fourth semiconductor capacitor element being connected to said first terminal of said first semiconductor capacitor element in series.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-04-10 | 1998-10-10 | 1999-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-10 | 2002-10-10 | 2003-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-10 | 2006-10-10 | 2007-04-11 | $7700.00 | Window Closed / Lapsed |