Patent US2715085A successfully refreshed from Google Patents.
Patent US5031069A successfully refreshed from Google Patents.
US5031069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integration of ceramic capacitor
Assignee: Sundstrand Corp
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Filing: 1989-12-28
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Granted: 1991-07-09
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Expires: 2009-12-28
Abstract
Abstract A power module consisting of electronic components disposed within a hollowed-out, hermetically-sealed, multi-layered ceramic capacitor formed of spaced side walls of stacked alternating layers of conductors and dielectrics, the side walls being covered by top and bottom covers.
Inventors
- 👤 Kyle Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/16; H05K1/162; H10; H10W; H10W44/00; H10W44/601; H05K1/02; H05K1/03; H05K1/0306; H05K1/18; H05K1/182; H05K1/183; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/0929; H05K2201/09309; H05K3/00; H05K3/40; H05K3/403; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W70/685; H10W72/00; H10W72/50; H10W72/531; H10W72/5363; H10W90/00; H10W90/701; H10W90/751; H10W90/753; Y; Y10; Y10S; Y10S257/00; Y10S257/916
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
110 words
A hermetically sealed power module device comprising: side walls formed of spaced sections which bound an opening, at least one such wall comprising a capacitor of stacked alternating layers of conductors and dielectrics; electrical components disposed within said opening; a first conductor element disposed on an outer peripheral edge of said capacitor side wall; a second conductor element disposed on an outer peripheral edge of another of said side walls; and top and bottom covers each disposed on said side walls hermetically sealing said components within said opening, at least one of said covers being made of a conductive material and having a plurality of lips contacting said conductor elements.
Claim 2
Dependent Claim
110 words
A hermetically sealed power module device comprising: side walls formed of spaced sections which bound an opening, at least one such wall comprising a capacitor of stacked alternating layers of conductors and dielectrics; electrical components disposed within said opening; a first conductor element disposed on an outer peripheral edge of said capacitor side wall; a second conductor element disposed on an outer peripheral edge of another of said side walls; and top and bottom covers each disposed on said side walls hermetically sealing said components within said opening, at least one of said covers being made of a conductive material and having a plurality of lips contacting said conductor elements.
Claim 3
Dependent Claim
18 words
The device of claim 1 in which said capacitor includes means for dissipating heat build-up in said capacitor.
Claim 4
Dependent Claim
14 words
The device of claim 2 in which said dissipating means includes said spaced sections.
Claim 5
Dependent Claim
14 words
The module of claim 1 in which said dielectric layers are made of ceramic.
Claim 6
Dependent Claim
15 words
The module of claim 1 in which at least one cover is made of molybdenum.
Claim 7
Dependent Claim
22 words
The module of claim 1 in which a circuit board having one or more electric components serves as one of said covers.
Claim 8
Dependent Claim
23 words
The module of claim 1 in which a cover is attached by means of solder to a wall formed by the capacitor body.
Claim 9
Dependent Claim
16 words
The module of claim 1 in which one side of said capacitor is covered with solder.
Claim 10
Dependent Claim
19 words
The module of claim 1 in which a heat sink is mounted on an outside surface of said module.
Claim 11
Dependent Claim
20 words
The module of claim 1 in which a heat exchanger device is attached to an outside surface of a cover.
Claim 12
Dependent Claim
30 words
The one module of claim 1 in which electric circuitry elements are disposed within said opening; said elements being adapted to connect said electric components into the desired circuit configuration.
Claim 13
Dependent Claim
24 words
The module of claim 11 in which the electric circuitry elements include means for controlling the function of the components disposed within the module.
Claim 14
Dependent Claim
33 words
The module of claim 11 in which the electric circuitry elements include a feed-through conductor passing through one of said side walls from said opening inside the module walls to outside the module.
Claim 15
Dependent Claim
31 words
The module of claim 13 in which the feed-through conductor is made of a material having a coefficient of thermal expansion approximating the coefficient of thermal expansion of said ceramic material.
Claim 16
Dependent Claim
34 words
The module of claim 1 in which one of said electrical components is mounted on a small conductive plate, said plate being attached to the inner surface of and electrically insulated from a cover.
Claim 17
Dependent Claim
20 words
The module of claim 1 in which said components comprise a power converter configured as a full phase switching assembly.
Claim 18
Dependent Claim
15 words
The module of claim 16 in which said capacitor functions as a DC link capacitor.
Claim 19
Dependent Claim
33 words
The module of claim 16 in which a plurality of said components are disposed within said opening and said components include a power switch, a flyback diode, a resistor, and a snubber capacitor.
Claim 20
Dependent Claim
20 words
The module of claim 16 and further comprising a positive current lead, a negative current lead, and a phase lead.
Claim 21
Dependent Claim
26 words
The module of claim 16 which has control leads comprising a drive control lead, an internal power supply control lead or an overload protection control lead.
Claim 22
Dependent Claim
21 words
The module of claim 16 in which said power switches comprise insulated gate bipolar transistors, bipolar transistors, thyristors or power FETs.
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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) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |