JPH0519091B2 - - Google Patents
Info
- Publication number
- JPH0519091B2 JPH0519091B2 JP28627587A JP28627587A JPH0519091B2 JP H0519091 B2 JPH0519091 B2 JP H0519091B2 JP 28627587 A JP28627587 A JP 28627587A JP 28627587 A JP28627587 A JP 28627587A JP H0519091 B2 JPH0519091 B2 JP H0519091B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- diaphragm
- vibrating
- differential pressure
- epitaxial layer
- 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 - Fee Related
Links
- 239000000758 substrate Substances 0.000 claims description 31
- 239000004065 semiconductor Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 description 32
- 239000010703 silicon Substances 0.000 description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 30
- 230000003068 static effect Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 7
- 229910052796 boron Inorganic materials 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 150000003376 silicon Chemical class 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28627587A JPH01127930A (ja) | 1987-11-12 | 1987-11-12 | 振動形差圧センサ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28627587A JPH01127930A (ja) | 1987-11-12 | 1987-11-12 | 振動形差圧センサ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127930A JPH01127930A (ja) | 1989-05-19 |
| JPH0519091B2 true JPH0519091B2 (enrdf_load_stackoverflow) | 1993-03-15 |
Family
ID=17702258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28627587A Granted JPH01127930A (ja) | 1987-11-12 | 1987-11-12 | 振動形差圧センサ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127930A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0431728A (ja) * | 1990-05-28 | 1992-02-03 | Yokogawa Electric Corp | 半導体圧力計 |
| JP5880499B2 (ja) * | 2013-08-19 | 2016-03-09 | 横河電機株式会社 | 振動式圧力センサ及びその製造方法 |
-
1987
- 1987-11-12 JP JP28627587A patent/JPH01127930A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01127930A (ja) | 1989-05-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |