Fabrication method of semiconductor substrate and micro-electro-mechanical system (MEMS) device
A method of fabricating a semiconductor substrate includes the following steps. A first wafer is provided and a first surface of the first wafer is etched to form a plurality of cavities. A second wafer is formed on the first surface, where forming the second wafer includes the following steps: prov...
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| creator | CHAND, RAKESH SHUNMUGAM, MUNIANDY YELEHANKA, RAMACHANDRAMURTHY PRADEEP |
| description | A method of fabricating a semiconductor substrate includes the following steps. A first wafer is provided and a first surface of the first wafer is etched to form a plurality of cavities. A second wafer is formed on the first surface, where forming the second wafer includes the following steps: providing a core substrate; forming a first insulating layer on the core substrate; and depositing a polysilicon layer on the first insulating layer and the core substrate. In addition, the polysilicon layer is bonded with the first wafer to cover the cavities, where the polysilicon layer is disposed between the first insulating layer and the first wafer. In addition, a MEMS device using the semiconductor substrate is also provided. |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICALDEVICES MICROSTRUCTURAL TECHNOLOGY PERFORMING OPERATIONS PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTUREOR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS SEMICONDUCTOR DEVICES TRANSPORTING |
| title | Fabrication method of semiconductor substrate and micro-electro-mechanical system (MEMS) device |
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