Invention Publication
- Patent Title: PLZT CAPACITOR AND METHOD TO INCREASE THE DIELECTRIC CONSTANT
- Patent Title (中): PLZT电容器和增加电介质常数的方法
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Application No.: EP17169639.6Application Date: 2017-05-05
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Publication No.: EP3244428A3Publication Date: 2017-11-29
- Inventor: TAYLOR, Ralph, S , FAIRCHILD, Manuel, Ray , BALACHANDRAN, Uthamalingam , LEE, Tae, H
- Applicant: Delphi Technologies, Inc. , UChicago Argonne, LLC
- Applicant Address: Post Office Box 5052 Troy, MI 48007-5052 US
- Assignee: Delphi Technologies, Inc.,UChicago Argonne, LLC
- Current Assignee: Delphi Technologies, Inc.,UChicago Argonne, LLC
- Current Assignee Address: Post Office Box 5052 Troy, MI 48007-5052 US
- Agency: Delphi France SAS
- Priority: US201615151830 20160511
- Main IPC: H01G4/12
- IPC: H01G4/12 ; H01G4/33 ; H01G4/08 ; H01L49/02 ; C04B35/01
Abstract:
A ceramic-capacitor (10) includes a first electrically-conductive-layer (14), a second electrically-conductive-layer (18) arranged proximate to the first electrically-conductive-layer (14), and a dielectric-layer (16) interposed between the first electrically-conductive-layer (14) and the second electrically-conductive-layer (18). The dielectric-layer (16) is formed of a lead-lanthanum-zirconium-titanate material (PLZT), wherein the PLZT is characterized by a dielectric-constant greater than 125, when measured at 25 degrees Celsius and zero Volts bias, and an excitation frequency of ten-thousand Hertz (10kHz). A method (20) for increasing a dielectric constant of the lead-lanthanum-zirconium-titanate material (PLZT) includes the steps of depositing PLZT to form a dielectric-layer (16) of a ceramic-capacitor (10), and heating the ceramic-capacitor (10) to a temperature not greater than 300° C.
Public/Granted literature
- EP3244428A2 PLZT CAPACITOR AND METHOD TO INCREASE THE DIELECTRIC CONSTANT Public/Granted day:2017-11-15
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