FR1397526A - Piezoelectric and ferroelectric device and its manufacturing process - Google Patents

Piezoelectric and ferroelectric device and its manufacturing process

Info

Publication number
FR1397526A
FR1397526A FR969300A FR969300A FR1397526A FR 1397526 A FR1397526 A FR 1397526A FR 969300 A FR969300 A FR 969300A FR 969300 A FR969300 A FR 969300A FR 1397526 A FR1397526 A FR 1397526A
Authority
FR
France
Prior art keywords
piezoelectric
manufacturing process
ferroelectric device
ferroelectric
manufacturing
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.)
Expired
Application number
FR969300A
Other languages
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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
Priority claimed from US328653A external-priority patent/US3348077A/en
Priority claimed from BE645858A external-priority patent/BE645858A/fr
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR1397526A publication Critical patent/FR1397526A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
    • C30B29/605—Products containing multiple oriented crystallites, e.g. columnar crystallites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR969300A 1963-04-01 1964-04-01 Piezoelectric and ferroelectric device and its manufacturing process Expired FR1397526A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26966563A 1963-04-01 1963-04-01
US328653A US3348077A (en) 1963-12-06 1963-12-06 Ferroelectric circuit element material and transducer utilizing same
BE645858A BE645858A (en) 1963-04-01 1964-03-27

Publications (1)

Publication Number Publication Date
FR1397526A true FR1397526A (en) 1965-04-30

Family

ID=27158945

Family Applications (1)

Application Number Title Priority Date Filing Date
FR969300A Expired FR1397526A (en) 1963-04-01 1964-04-01 Piezoelectric and ferroelectric device and its manufacturing process

Country Status (5)

Country Link
DE (1) DE1489239B (en)
FR (1) FR1397526A (en)
GB (1) GB1065411A (en)
NL (1) NL6403401A (en)
SE (1) SE314531B (en)

Also Published As

Publication number Publication date
GB1065411A (en) 1967-04-12
DE1489239B (en) 1971-04-22
NL6403401A (en) 1964-10-02
SE314531B (en) 1969-09-08

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