Patent US5404628A successfully refreshed from Google Patents.
US5404628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for optimizing piezoelectric resonator-based networks
Assignee: Qorvo US Inc
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Filing: 1993-04-14
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Granted: 1995-04-11
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Expires: 2013-04-14
Abstract
Abstract The method comprises decomposing an original resonator within a network into a pair of series connected resonators to add an additional connecting electrode to the network. The pair of resonators are series connected by a shared electrode. To preserve the original electrical characteristics of the network, the composite characteristics of the series connected resonators are chosen to match those of the original resonator. With this method, the additional electrode is placed on a surface of the piezoelectric material opposing the surface to which the shared electrode is mounted. The method allows for the addition of an electrode to a piezoelectric resonator-based network so that the electrodes which connect the network to other circuitry may be placed where desired. This may be on the upper surface of the piezoelectric material for connection to discrete components or on the lower, buried surface for connection to buried layers of an adjacent integrated circuit.
Inventors
- 👤 Richard S. Ketcham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:36
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46; H03H9/54; H03H9/56; H03H9/566; H03H9/568; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A method of optimizing the implementation of a piezoelectric resonator-based network, comprising the following steps: decomposing an original resonator in the network into a pair of series connected resonators to add an additional electrode to the network; connecting the pair of resonators to a shared electrode mounted to a surface of the piezoelectric material; placing the additional electrode on a surface of the piezoelectric material opposing the surface to which the shared electrode is mounted; and matching the characteristics of the series connected resonators with those of the original resonator to preserve the characteristics of the original resonator.
Claim 2
Independent Claim
98 words
A method of optimizing the implementation of a piezoelectric resonator-based network, comprising the following steps: decomposing an original resonator in the network into a pair of series connected resonators to add an additional electrode to the network; connecting the pair of resonators to a shared electrode mounted to a surface of the piezoelectric material; placing the additional electrode on a surface of the piezoelectric material opposing the surface to which the shared electrode is mounted; and matching the characteristics of the series connected resonators with those of the original resonator to preserve the characteristics of the original resonator.
Claim 3
Dependent Claim
42 words
The method of claim 1 in which the piezoelectric resonator has first and second electrodes on opposing surfaces of the piezoelectric material, and the added electrode is placed on the same surface of the piezoelectric material as the first electrode is placed.
Claim 4
Dependent Claim
37 words
The method of claim 1 in which decomposing an original resonator comprises: locating a piezoelectric resonator in the network; and replacing the resonator with two series connected resonators which are the only connections to the shared electrode.
Claim 5
Dependent Claim
59 words
The method of claim 1 in which matching the characteristics of the series connected resonators with those of the original resonator comprises: placing two electrodes on one surface of the piezoelectric material; and placing the shared electrode on the other surface of the material in overlapping relation to the two electrodes to create the pair of series connected resonators.
Claim 6
Dependent Claim
26 words
The method of claim 4 in which the electrodes are placed to create two series connected resonators having the equivalent series capacitance of the original resonator.
Claim 7
Independent Claim
165 words
A method for optimizing the implementation of a piezoelectric resonator for connecting the resonator to other circuitry, the resonator comprising a layer of piezoelectric material having opposing surfaces to which electrodes are mounted, the method comprising the following steps: determining the characteristics of the piezoelectric resonator; determining on which surfaces of the piezoelectric material electrodes are mounted to provide the resonator characteristics; determining on which surfaces of the piezoelectric material electrodes should be placed for connecting the resonator to other circuitry; determining that a piezoelectric material surface on which an electrode is mounted for providing the resonator characteristics is not the same surface as the surface on which an electrode should be placed for connecting the resonator to other circuitry; placing an electrode on a surface for connecting the resonator to other circuitry to make a pair of series connected resonators; and matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator to preserve the characteristics of the piezoelectric resonator.
Claim 8
Independent Claim
165 words
A method for optimizing the implementation of a piezoelectric resonator for connecting the resonator to other circuitry, the resonator comprising a layer of piezoelectric material having opposing surfaces to which electrodes are mounted, the method comprising the following steps: determining the characteristics of the piezoelectric resonator; determining on which surfaces of the piezoelectric material electrodes are mounted to provide the resonator characteristics; determining on which surfaces of the piezoelectric material electrodes should be placed for connecting the resonator to other circuitry; determining that a piezoelectric material surface on which an electrode is mounted for providing the resonator characteristics is not the same surface as the surface on which an electrode should be placed for connecting the resonator to other circuitry; placing an electrode on a surface for connecting the resonator to other circuitry to make a pair of series connected resonators; and matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator to preserve the characteristics of the piezoelectric resonator.
Claim 9
Dependent Claim
21 words
The method of claim 6 in which three electrodes are placed to create two series connected resonators of identical resonant frequency.
Claim 10
Dependent Claim
20 words
The method of claim 6 in which each of a pair of electrodes is placed for connection to other circuitry.
Claim 11
Dependent Claim
17 words
The method of claim 6 wherein the series connected resonators form part of a resonator-based T network.
Claim 12
Dependent Claim
17 words
The method of claim 6 wherein the series connected resonators form part of a resonator-based pi network.
Claim 13
Dependent Claim
17 words
The method of claim 6 wherein the series connected resonators form part of a resonator-based L network.
Claim 14
Dependent Claim
35 words
The method of claim 6 wherein matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator comprises adjusting the size and location of the electrodes mounted on the piezoelectric material.
Claim 15
Independent Claim
130 words
A method for connecting a piezoelectric resonator to other circuitry in a network, the resonator comprised of a layer of piezoelectric material having opposing surfaces to which electrodes are mounted, the method comprising the following steps: determining the characteristics of the piezoelectric resonator; determining on which surfaces of the piezoelectric material electrodes should be placed for connecting the resonator to other circuitry; determining that an electrode of the piezoelectric resonator is not mounted on a piezoelectric material surface for connecting the resonator to other circuitry; placing an electrode on a surface for connecting the resonator to other circuitry to make a pair of series connected resonators; and matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator to preserve the characteristics of the piezoelectric resonator.
Claim 16
Independent Claim
130 words
A method for connecting a piezoelectric resonator to other circuitry in a network, the resonator comprised of a layer of piezoelectric material having opposing surfaces to which electrodes are mounted, the method comprising the following steps: determining the characteristics of the piezoelectric resonator; determining on which surfaces of the piezoelectric material electrodes should be placed for connecting the resonator to other circuitry; determining that an electrode of the piezoelectric resonator is not mounted on a piezoelectric material surface for connecting the resonator to other circuitry; placing an electrode on a surface for connecting the resonator to other circuitry to make a pair of series connected resonators; and matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator to preserve the characteristics of the piezoelectric resonator.
Claim 17
Dependent Claim
36 words
The method of claim 13 including: forming first and second metalization layers to create a piezoelectric resonator-based T network being completely connectable to other circuitry from the electrodes of a single surface of the piezoelectric material.
Claim 18
Dependent Claim
36 words
The method of claim 13 including: forming first and second metalization layers to create a piezoelectric resonator-based pi network being completely connectable to other circuitry from the electrodes of a single surface of the piezoelectric material.
Claim 19
Dependent Claim
36 words
The method of claim 13 including: forming first and second metalization layers to create a piezoelectric resonator-based L network being completely connectable to other circuitry from the electrodes of a single surface of the piezoelectric material.
Claim 20
Dependent Claim
35 words
The method of claim 13 wherein matching the characteristics of the series connected resonators with the characteristics of the piezoelectric resonator comprises adjusting the size and location of the electrodes mounted on the piezoelectric material.
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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) | 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 |