US3714527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated monolithic semiconductor circuit with controlled crystal temperature
Assignee: US Philips Corp
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Filing: 1971-07-12
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Granted: 1973-01-30
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Expires: 1991-07-12
Abstract
Abstract An integrated monolithic semiconductor circuit with a controlled crystal temperature includes a heat generating circuit element, a temperature sensor for the temperature sensing in the body, a plurality of temperature dependent circuit elements arranged symmetrically about a circle and at least one heat generating circuit element arranged symmetrically with respect to the circle. Feedback from the temperature sensing element to the control heat generating circuit provides a stable temperature controlled arrangement. The preferred symmetrical disposition of the various circuit elements on circles makes for an economical temperature control.
Inventors
- 👤 H Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:52
CPC Classifications
H; H10; H10W; H10W40/00; H10D; H10D89/00; H10D89/10; H10D89/105
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
An integrated monolithic semiconductor circuit with controlled temperature comprising a semiconductor body, at least one controlled heat generating circuit element in the body, a control circuit element in the body for temperature sensing, means to couple the control circuit element to the controlled heat generating circuit for maintaining the temperature of the body, a plurality of temperature dependent circuit elements in the body, said control circuit element and said plurality of temperature dependent circuit elements being located symmetrically about a first circle, and at least one heat dissipating circuit element in the body, said heat dissipating circuit element and said controlled heat generating circuit element being located in the body symmetrically with respect to the first circle.
Claim 2
Dependent Claim
117 words
An integrated monolithic semiconductor circuit with controlled temperature comprising a semiconductor body, at least one controlled heat generating circuit element in the body, a control circuit element in the body for temperature sensing, means to couple the control circuit element to the controlled heat generating circuit for maintaining the temperature of the body, a plurality of temperature dependent circuit elements in the body, said control circuit element and said plurality of temperature dependent circuit elements being located symmetrically about a first circle, and at least one heat dissipating circuit element in the body, said heat dissipating circuit element and said controlled heat generating circuit element being located in the body symmetrically with respect to the first circle.
Claim 3
Dependent Claim
117 words
An integrated monolithic semiconductor circuit with controlled temperature comprising a semiconductor body, at least one controlled heat generating circuit element in the body, a control circuit element in the body for temperature sensing, means to couple the control circuit element to the controlled heat generating circuit for maintaining the temperature of the body, a plurality of temperature dependent circuit elements in the body, said control circuit element and said plurality of temperature dependent circuit elements being located symmetrically about a first circle, and at least one heat dissipating circuit element in the body, said heat dissipating circuit element and said controlled heat generating circuit element being located in the body symmetrically with respect to the first circle.
Claim 4
Dependent Claim
117 words
An integrated monolithic semiconductor circuit with controlled temperature comprising a semiconductor body, at least one controlled heat generating circuit element in the body, a control circuit element in the body for temperature sensing, means to couple the control circuit element to the controlled heat generating circuit for maintaining the temperature of the body, a plurality of temperature dependent circuit elements in the body, said control circuit element and said plurality of temperature dependent circuit elements being located symmetrically about a first circle, and at least one heat dissipating circuit element in the body, said heat dissipating circuit element and said controlled heat generating circuit element being located in the body symmetrically with respect to the first circle.
Claim 5
Dependent Claim
57 words
An integrated semiconductor circuit as claimed in claim 1, wherein the controlled heat generating circuit element is located at the center of the first circle and a plurality of heat dissipating circuit elements are arranged symmetrically around a second circle concentric with the first and also with respect to orthogonal axes through the center of the circles.
Claim 6
Dependent Claim
74 words
An integrated semiconductor circuit as claimed in claim 1, wherein the controlled heat generating circuit element comprises a plurality of sub-elements, the plurality of sub-elements being located syMmetrically about a second circle and also being located symmetrically with respect to orthogonal axes through the center of the circles, said second circle being concentric with said first circle, said plurality of temperature dependent circuit elements also being located symmetrically with respect to said orthogonal axes.
Claim 7
Dependent Claim
29 words
An integrated semiconductor circuit as claimed in claim 3, wherein said second circle is smaller than said first circle, and said heat dissipating element is located at the center.
Claim 8
Dependent Claim
34 words
An integrated semiconductor circuit as set forth in claim 3, wherein a plurality of dominant heat dissipating elements are provided located on a third concentric circle intermediate that of the first and second circles.
Claim 9
Dependent Claim
59 words
An integrated semiconductor circuit as claimed in claim 3, wherein a plurality of heat dissipating circuit elements are provided in the body located on a third concentric circle, said third circle being greater than said second circle, and said first circle is one of smaller and larger radius with respect to that of said second and said third circles.
Claim 10
Dependent Claim
25 words
An integrated semiconductor circuit as claimed in claim 3, wherein two of the first, the second and the third circles are equal to each other.
Claim 11
Dependent Claim
28 words
An integrated semiconductor circuit as claimed in claim 1, wherein said coupling means comprises a temperature control circuit, said temperature control circuit being located on the first circle.
References Cited (Backward Citations)
US3502997A
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US3596115A
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US3560866A
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US3600650A
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US3566690A
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US3614480A
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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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |