Ken J. Hayworth - Northridge CA, US Karl Y. Yee - Pasadena CA, US Kirill V. Shcheglov - Los Angeles CA, US Youngsam Bae - Gardena CA, US Dean V. Wiberg - La Crescenta CA, US A. Dorian Challoner - Manhattan Beach CA, US Chris S. Peay - Alhambra CA, US
Assignee:
California Institute of Technology - Pasadena CA The Boeing Company - Chicago IL
International Classification:
H01L 23/552
US Classification:
257659, 257660, 438455, 438456, 216 2
Abstract:
A Multiple Internal Seal Ring (MISR) Micro-Electro-Mechanical System (MEMS) vacuum package that hermetically seals MEMS devices using MISR. The method bonds a capping plate having metal seal rings to a base plate having metal seal rings by wafer bonding the capping plate wafer to the base plate wafer. Bulk electrodes may be used to provide conductive paths between the seal rings on the base plate and the capping plate. All seals are made using only metal-to-metal seal rings deposited on the polished surfaces of the base plate and capping plate wafers. However, multiple electrical feed-through metal traces are provided by fabricating via holes through the capping plate for electrical connection from the outside of the package through the via-holes to the inside of the package. Each metal seal ring serves the dual purposes of hermetic sealing and providing the electrical feed-through metal trace.
Kirill V. Shcheglov - Los Angeles CA, US A. Dorian Challoner - Manhattan Beach CA, US Ken J. Hayworth - Northridge CA, US Dean V. Wiberg - La Crescenta CA, US Karl Y. Yee - Pasadena CA, US
Assignee:
The Boeing Company - Chicago IL California Institute of Technology - Pasadena CA
International Classification:
G01P 9/04
US Classification:
7350413, 7350412
Abstract:
The present invention discloses an inertial sensor having an integral resonator. A typical sensor comprises a planar mechanical resonator for sensing motion of the inertial sensor and a case for housing the resonator. The resonator and a wall of the case are defined through an etching process. A typical method of producing the resonator includes etching a baseplate, bonding a wafer to the etched baseplate, through etching the wafer to form a planar mechanical resonator and the wall of the case and bonding an end cap wafer to the wall to complete the case.
Multiple Internal Seal Ring Micro-Electro-Mechanical System Vacuum Packaging Method
Ken J. Hayworth - Northridge CA, US Karl Y. Yee - Pasadena CA, US Kirill V. Shcheglov - Los Angeles CA, US Youngsam Bae - Gardena CA, US Dean V. Wiberg - La Crescenta CA, US A. Dorian Challoner - Manhattan Beach CA, US Chris S. Peay - Alhambra CA, US
Assignee:
California Institute of Technology - Pasadena CA The Boeing Company - Chicago IL
A Multiple Internal Seal Ring (MISR) Micro-Electro-Mechanical System (MEMS) vacuum packaging method that hermetically seals MEMS devices using MISR. The method bonds a capping plate having metal seal rings to a base plate having metal seal rings by wafer bonding the capping plate wafer to the base plate wafer. Bulk electrodes may be used to provide conductive paths between the seal rings on the base plate and the capping plate. All seals are made using only metal-to-metal seal rings deposited on the polished surfaces of the base plate and capping plate wafers. However, multiple electrical feed-through metal traces are provided by fabricating via holes through the capping plate for electrical connection from the outside of the package through the via-holes to the inside of the package. Each metal seal ring serves the dual purposes of hermetic sealing and providing the electrical feed-through metal trace.
Miniature Micromachined Quadrupole Mass Spectrometer Array And Method Of Making The Same
Ara Chutjian - La Crescenta CA Michael Hecht - Los Angeles CA Otto Orient - Glendale CA Dean Wiberg - La Crescenta CA Reid A. Brennen - San Francisco CA
Assignee:
California Institute of Technology - Pasadena CA
International Classification:
H01J 4942
US Classification:
250292
Abstract:
The present invention provides a quadrupole mass spectrometer and an ion filter for use in the quadrupole mass spectrometer. The ion filter includes a thin patterned layer including a two-dimensional array of poles forming one or more quadrupoles. The patterned layer design permits the use of very short poles and with a very dense spacing of the poles, so that the ion filter may be made very small. Also provided is a method for making the ion filter and the quadrupole mass spectrometer. The method involves forming the patterned layer of the ion filter in such a way that as the poles of the patterned layer are formed, they have the relative positioning and alignment for use in a final quadrupole mass spectrometer device.
Miniature Micromachined Quadrupole Mass Spectrometer Array And Method Of Making The Same
Ara Chutjian - La Crescenta CA Michael Hecht - Los Angeles CA Otto Orient - Glendale CA Dean Wiberg - La Crescenta CA Reid A. Brennen - San Francisco CA
Assignee:
California Institute of Technology - Pasadena CA
International Classification:
H01J 4942
US Classification:
250292
Abstract:
The present invention provides a quadrupole mass spectrometer and an ion filter for use in the quadrupole mass spectrometer. The ion filter includes a thin patterned layer including a two-dimensional array of poles forming one or more quadrupoles. The patterned layer design permits the use of very short poles and with a very dense spacing of the poles, so that the ion filter may be made very small. Also provided is a method for making the ion filter and the quadrupole mass spectrometer. The method involves forming the patterned layer of the ion filter in such a way that as the poles of the patterned layer are formed, they have the relative positioning and aligrnent for use in a final quadrupole mass spectrometer device.
Miniature Micromachined Quadrupole Mass Spectrometer Array And Method Of Making The Same
Ara Chutjian - La Crescenta CA Michael Hecht - Los Angeles CA Otto Orient - Glendale CA Dean Wiberg - La Crescenta CA Reid A. Brennen - San Francisco CA
Assignee:
California Institute of Technology - Pasadena CA
International Classification:
H01J 4942
US Classification:
250292
Abstract:
The present invention provides a quadrupole mass spectrometer and an ion filter for use in the quadrupole mass spectrometer. The ion filter includes a thin patterned layer including a two-dimensional array of poles forming one or more quadrupoles. The patterned layer design permits the use of very short poles and with a very dense spacing of the poles, so that the ion filter may be made very small. Also provided is a method for making the ion filter and the quadrupole mass spectrometer. The method involves forming the patterned layer of the ion filter in such a way that as the poles of the patterned layer are formed, they have the relative positioning and alignment for use in a final quadrupole mass spectrometer device.