US3715635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency matched impedance microcircuit holder
Assignee: Bendix Corp
•
Filing: 1971-06-25
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Granted: 1973-02-06
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Expires: 1991-06-25
Abstract
Abstract A high frequency (greater than 108 hertz) microcircuit holder having a predetermined characteristic impedance that matches the impedance of the incoming transmission lines. The package is designed to achieve maximum power and/or signal transfer to a microcircuit hermetically sealed in the package. The characteristic impedance of the holder is reduced by a predetermined capacitance established between an input contact and a metal base plate. The impedance of the input contact is increased by reducing the cross-sectional area of the input contact as it passes through the dielectric wall of the microcircuit package. This increase in the impedance of the contact reduces the effect of the dielectric surrounding the contact which otherwise would result in a decrease in the impedance of the contact.
Inventors
- 👤 D Michel
- 👤 R Komatinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:38
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/02; H01P3/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
88 words
In combination with a microcircuit holder of the type having a metal base plate, dielectric walls forming a cavity to receive said microcircuit, and at least one electrical lead mounted in and passing through a dielectric wall, the improvement wherein said lead comprises: a strip of electrically conducting material of substantially uniform thickness, generally parallel to and spaced from said base plate, said strip having a first width W1 outside said dielectric wall, a second width W2 in said wall and a ratio of W1/W2 greater than 1.
Claim 2
Dependent Claim
88 words
In combination with a microcircuit holder of the type having a metal base plate, dielectric walls forming a cavity to receive said microcircuit, and at least one electrical lead mounted in and passing through a dielectric wall, the improvement wherein said lead comprises: a strip of electrically conducting material of substantially uniform thickness, generally parallel to and spaced from said base plate, said strip having a first width W1 outside said dielectric wall, a second width W2 in said wall and a ratio of W1/W2 greater than 1.
Claim 3
Dependent Claim
88 words
In combination with a microcircuit holder of the type having a metal base plate, dielectric walls forming a cavity to receive said microcircuit, and at least one electrical lead mounted in and passing through a dielectric wall, the improvement wherein said lead comprises: a strip of electrically conducting material of substantially uniform thickness, generally parallel to and spaced from said base plate, said strip having a first width W1 outside said dielectric wall, a second width W2 in said wall and a ratio of W1/W2 greater than 1.
Claim 4
Dependent Claim
88 words
In combination with a microcircuit holder of the type having a metal base plate, dielectric walls forming a cavity to receive said microcircuit, and at least one electrical lead mounted in and passing through a dielectric wall, the improvement wherein said lead comprises: a strip of electrically conducting material of substantially uniform thickness, generally parallel to and spaced from said base plate, said strip having a first width W1 outside said dielectric wall, a second width W2 in said wall and a ratio of W1/W2 greater than 1.
Claim 5
Dependent Claim
56 words
The combination as recited in claim 1 including a metal cover disposed on said dielectric walls and generally parallel to and spaced from said metal base plate a distance equal to or greater than 2h where h is the distance between the metal base plate and said strip of conducting material located in said dielectric wall.
Claim 6
Dependent Claim
18 words
The combination recited in claim 2 wherein the ratio W1/W2 is greater than 1 but less than 2.
Claim 7
Dependent Claim
92 words
A microwave circuit holder comprising: a housing comprising: a metal base plate; four walls defining a cavity of said housing, and at least one wall comprised of a dielectric material; and an electrical conductor mounted in said dielectric wall about said metal base plate, said conductor having a first portion of cross-sectional area A1 outside of said housing and a second portion of cross-sectional area A2 disposed in said dielectric wall, a third portion of cross-sectional area A3 inside said housing cavity and a cross-sectional area ratio of A1/A2 greater than 1.
Claim 8
Dependent Claim
92 words
A microwave circuit holder comprising: a housing comprising: a metal base plate; four walls defining a cavity of said housing, and at least one wall comprised of a dielectric material; and an electrical conductor mounted in said dielectric wall about said metal base plate, said conductor having a first portion of cross-sectional area A1 outside of said housing and a second portion of cross-sectional area A2 disposed in said dielectric wall, a third portion of cross-sectional area A3 inside said housing cavity and a cross-sectional area ratio of A1/A2 greater than 1.
Claim 9
Dependent Claim
17 words
The microwave circuit holder as recited in claim 4 wherein the ratio A3/A2 is greater than 1.
Claim 10
Dependent Claim
38 words
The microwave circuit holder as recited in claim 4 including a microwave circuit disposed in said housing cavity and in electrical circuit relationship with said electrical conductor; and means for hermetically sealing said microwave circuit in said housing.
Claim 11
Dependent Claim
37 words
The microwave holder as recited in claim 5 including a microwave circuit disposed in said housing cavity and in electrical circuit relationship with said electrical conductor; and means for hermetically sealing said microwave circuit in said housing.
Claim 12
Dependent Claim
30 words
The microwave circuit holder as recited in claim 4 wherein said dielectric material is glass and said base plate, said electrical conductor, and said metal strip are comprised of Kovar.
Claim 13
Dependent Claim
30 words
The microwave circuit holder as recited in claim 5 wherein said dielectric material is glass and said base plate, said electrical conductor, and said metal strip are comprised of Kovar.
Claim 14
Dependent Claim
30 words
The microwave circuit holder as recited in claim 6 wherein said dielectric material is glass and said base plate, said electrical conductor, and said metal strip are comprised of Kovar.
Claim 15
Dependent Claim
30 words
The microwave circuit holder as recited in claim 7 wherein said dielectric material is glass and said base plate, said electrical conductor, and said metal strip are comprised of Kovar.
Claim 16
Dependent Claim
99 words
In the combination of a microwave circuit package of the type including an enclosure, a microcircuit disposed in said enclosure, and a plurality of electrical lead wires extending from the enclosure and electrically communicating with said microwave circuit, the improvement wherein at least one of said electrical lead wires has a first portion of cross-sectional area A1 extending from the enclosure, a second portion of cross-sectional area A2 passing through a Portion of said enclosure, a third portion of cross-sectional area A3 electrically connected to said microwave circuit inside said enclosure and a ratio of A1/A2 greater than 1.
Claim 17
Dependent Claim
99 words
In the combination of a microwave circuit package of the type including an enclosure, a microcircuit disposed in said enclosure, and a plurality of electrical lead wires extending from the enclosure and electrically communicating with said microwave circuit, the improvement wherein at least one of said electrical lead wires has a first portion of cross-sectional area A1 extending from the enclosure, a second portion of cross-sectional area A2 passing through a Portion of said enclosure, a third portion of cross-sectional area A3 electrically connected to said microwave circuit inside said enclosure and a ratio of A1/A2 greater than 1.
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |