JPS5627983A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5627983A
JPS5627983A JP10309779A JP10309779A JPS5627983A JP S5627983 A JPS5627983 A JP S5627983A JP 10309779 A JP10309779 A JP 10309779A JP 10309779 A JP10309779 A JP 10309779A JP S5627983 A JPS5627983 A JP S5627983A
Authority
JP
Japan
Prior art keywords
piezoelectric unit
applying
semiconductor
controlling means
bias voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10309779A
Other languages
Japanese (ja)
Other versions
JPS5742988B2 (en
Inventor
Shoichi Minagawa
Takamasa Sakai
Takeshi Okamoto
Morihiro Niimi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP10309779A priority Critical patent/JPS5627983A/en
Priority to GB8026185A priority patent/GB2056810B/en
Priority to DE19803030636 priority patent/DE3030636A1/en
Priority to FR8017917A priority patent/FR2463473B1/en
Priority to US06/177,966 priority patent/US4357553A/en
Publication of JPS5627983A publication Critical patent/JPS5627983A/en
Publication of JPS5742988B2 publication Critical patent/JPS5742988B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/36—Devices for manipulating acoustic surface waves

Abstract

PURPOSE:To contrive the stabilization of operational characteristics of the elastic surface wave device by arranging a pumping electrode on the surface of a piezoelectric unit and forming depletion layer controlling means for applying DC bias voltage to the boundary between a semiconductor and the piezoelectric unit. CONSTITUTION:A laminate is formed of the semiconductor S and the piezoelectric unit A. A pumping electrode M2 for applying a pumping voltage is arranged on the surface of the piezoelectric unit A, and a high frequency power supply P for supplying a pumping current is connected thereto. The depletion layer controlling means D, D,... for applying DC bias voltage are formed in the boundary 12 between the semiconductor S and the piezoelectric unit A. The depletion layer controlling means D, D,... are formed in comblike shape, and are connected at one respective ends with common connecting end 13 to a variable DC power supply E for applying DC bias voltage.
JP10309779A 1979-08-14 1979-08-15 Elastic surface wave device Granted JPS5627983A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP10309779A JPS5627983A (en) 1979-08-15 1979-08-15 Elastic surface wave device
GB8026185A GB2056810B (en) 1979-08-14 1980-08-12 Surface-acoustic-wave device
DE19803030636 DE3030636A1 (en) 1979-08-14 1980-08-13 DEVICE FOR PROCESSING ACOUSTIC SURFACE WAVES
FR8017917A FR2463473B1 (en) 1979-08-14 1980-08-13 SURFACE ACOUSTIC WAVE DEVICE
US06/177,966 US4357553A (en) 1979-08-14 1980-08-14 Surface-acoustic-wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10309779A JPS5627983A (en) 1979-08-15 1979-08-15 Elastic surface wave device

Publications (2)

Publication Number Publication Date
JPS5627983A true JPS5627983A (en) 1981-03-18
JPS5742988B2 JPS5742988B2 (en) 1982-09-11

Family

ID=14345121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10309779A Granted JPS5627983A (en) 1979-08-14 1979-08-15 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5627983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597086B1 (en) * 1999-06-19 2003-07-22 Robert Bosch Gmbh Piezo element with a multiple-layer structure produced by folding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597086B1 (en) * 1999-06-19 2003-07-22 Robert Bosch Gmbh Piezo element with a multiple-layer structure produced by folding

Also Published As

Publication number Publication date
JPS5742988B2 (en) 1982-09-11

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