JPS5590118A - Thickness sliding crystal vibrator - Google Patents
Thickness sliding crystal vibratorInfo
- Publication number
- JPS5590118A JPS5590118A JP16325078A JP16325078A JPS5590118A JP S5590118 A JPS5590118 A JP S5590118A JP 16325078 A JP16325078 A JP 16325078A JP 16325078 A JP16325078 A JP 16325078A JP S5590118 A JPS5590118 A JP S5590118A
- Authority
- JP
- Japan
- Prior art keywords
- length
- axis
- angle
- inflection
- temperature
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
PURPOSE:To obtain a miniature crystal vibrator with its inflection-point temperature close to the normal temperature by setting the cutting angle and slanting angle of an AT cut with length set in the X-axial direction of a crystal piece within fixed ranges and then by fixing the length of the X axis between 5 and 10mm. CONSTITUTION:The length is set in the X-axial direction of a crystal piece, and the normal line of its main surface is perpendicular to the X axis while an cutting angle from the Y axis to Z axis is fixed at 35 deg. 10'; and its flank is slanted from the normal line of the main surface to the Z axis to change the angle like 2 deg., 5 deg. and 10 deg., and length is varied to 3-15mm. Here, the figure shows variation in the inflection- point temperature of frequency temperature characteristics in this case. According to it, the inflection-point temperature becomes equal to the normal temperature at a slanting angle of approximate 5 deg. with length between 5 and 10mm. Further, the cutting angle is between 35 deg.8' and 35 deg.16' within the practical range where the variation rate of a frequency within the temperature range of -10 deg.C-+60 deg.C is less than + or -30ppm when the cutting angle is changed 35 deg.20'-35 deg.5'. Consequently, setting the slanting angle and length to 4 deg.-6 deg., and 5-10mm respectively makes it possible to obtain a miniature AT-cut thickness sliding vibration crystal vibrator with its inflection-point temperature close to the normal point.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16325078A JPS5590118A (en) | 1978-12-27 | 1978-12-27 | Thickness sliding crystal vibrator |
| GB7943677A GB2043996B (en) | 1978-12-27 | 1979-12-19 | Thickness shear quartz crystal oscillator |
| DE2951815A DE2951815C2 (en) | 1978-12-27 | 1979-12-21 | Thickness shear quartz crystal oscillator |
| CH1146379A CH627913B (en) | 1978-12-27 | 1979-12-27 | THICK SWINGER QUARTZ CRYSTAL OSCILLATOR. |
| US06/341,245 US4476411A (en) | 1978-12-27 | 1982-01-21 | Rectangular thickness shear quartz crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16325078A JPS5590118A (en) | 1978-12-27 | 1978-12-27 | Thickness sliding crystal vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5590118A true JPS5590118A (en) | 1980-07-08 |
Family
ID=15770203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16325078A Pending JPS5590118A (en) | 1978-12-27 | 1978-12-27 | Thickness sliding crystal vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5590118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232627U (en) * | 1985-08-12 | 1987-02-26 |
-
1978
- 1978-12-27 JP JP16325078A patent/JPS5590118A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232627U (en) * | 1985-08-12 | 1987-02-26 | ||
| JPH0520015Y2 (en) * | 1985-08-12 | 1993-05-26 |
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