BE441496A - - Google Patents

Info

Publication number: BE441496A
Authority: BE; Belgium

Application number

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.)

1940-03-29

Publication of BE441496A publication Critical patent/BE441496A/xx

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
- H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/0504—Holders or supports for bulk acoustic wave devices
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
- H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

BE441496D 1940-03-29 BE441496A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US326764A US2268413A (en)	1940-03-29	1940-03-29	Piezoelectric crystal apparatus

Publications (1)

Publication Number	Publication Date
BE441496A true BE441496A (enrdf_load_stackoverflow)

Family

ID=23273607

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE441496D BE441496A (enrdf_load_stackoverflow)	1940-03-29

Country Status (4)

Country	Link
US (1)	US2268413A (enrdf_load_stackoverflow)
BE (1)	BE441496A (enrdf_load_stackoverflow)
FR (1)	FR867832A (enrdf_load_stackoverflow)
GB (1)	GB544834A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2498585A (en) *	1945-01-01	1950-02-21	Thomas C Flanagan	Piezoelectric crystal holder
US2444312A (en) *	1945-05-01	1948-06-29	Rca Corp	Art of sealing metal casings enclosing vibratile elements

0
- BE BE441496D patent/BE441496A/xx unknown
1940
- 1940-03-29 US US326764A patent/US2268413A/en not_active Expired - Lifetime
- 1940-11-28 FR FR867832D patent/FR867832A/fr not_active Expired
1941
- 1941-03-14 GB GB3491/41A patent/GB544834A/en not_active Expired

Also Published As

Publication number	Publication date
US2268413A (en)	1941-12-30
GB544834A (en)	1942-04-29
FR867832A (fr)	1941-11-29

Publication	Publication Date	Title
FR852391A (enrdf_load_stackoverflow)	1940-01-31
BE440256A (enrdf_load_stackoverflow)	1941-01-28
IT382478B (enrdf_load_stackoverflow)
BE437891A (enrdf_load_stackoverflow)	1940-03-30
BE438794A (enrdf_load_stackoverflow)	1940-07-31
BE440179A (enrdf_load_stackoverflow)
BE440248A (enrdf_load_stackoverflow)
BE438183A (enrdf_load_stackoverflow)
BE437917A (enrdf_load_stackoverflow)
BE437808A (enrdf_load_stackoverflow)
SE103624C1 (enrdf_load_stackoverflow)	1942-01-27
NL58743C (enrdf_load_stackoverflow)
NL115824B (enrdf_load_stackoverflow)
BE468834A (enrdf_load_stackoverflow)
BE442701A (enrdf_load_stackoverflow)
BE440307A (enrdf_load_stackoverflow)
BE440295A (enrdf_load_stackoverflow)
BE440291A (enrdf_load_stackoverflow)
BE439958A (enrdf_load_stackoverflow)	1941-01-31
BE440284A (enrdf_load_stackoverflow)
BE440038A (enrdf_load_stackoverflow)
BE440246A (enrdf_load_stackoverflow)
BE440192A (enrdf_load_stackoverflow)
BE437143A (enrdf_load_stackoverflow)
BE439851A (enrdf_load_stackoverflow)