Method for fabricating a sealed-cavity microstructure
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United States of America Patent
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Jul 22, 2003
Issued Date -
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app pub date -
Apr 17, 2001
filing date -
Jul 10, 1998
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Abstract
The present invention provides a sealed-cavity miscrostructure and an associated method for manufacturing the microstructure. Specifically, the microstructure of the present invention includes first and second wafers that are positioned relative to one another so as to form a cavity between the wafers. The microstructure further includes a seal between the first and second wafers and surrounding the cavity to create a pressure seal for the cavity. This seal allows the cavity of the microstructure to be maintained at a predetermined pressure different from that of the atmosphere outside the cavity. Importantly, the microstructure of the present invention further includes a structrual bond between the first and second wafers that structurally intergrates the first and second wafers. The structural bond renders the microstructure more rugged such that the microstructure can withstand expansion, vibrational, and shock stresses experienced by the microstructure during subsequent manufacturing and use. In one additional embodiment, the microstructure is a microbolometer that includes in addition to the seal and structural bond, a radiation detector suspended in the cavity.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- DRS NETWORK & IMAGING SYSTEMS, LLC
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bisignano, Alan Glenn | Fountain Valley, CA | 2 | 143 |
Fitzgibbons, Eugene Timothy | San Clemente, CA | 3 | 199 |
Hays, Kenneth Maxwell | Santa Ana, CA | 5 | 202 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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