Integrated MEMS packaging
First Claim
1. An integrated microelectromechanical system (MEMS) device package, the MEMS integrated package comprising:
- a first substrate having a first region with boundaries;
an electrical circuit on a second region of the first substrate, electrically connected to the first substrate;
a MEMS device environmental sensor on the first region, electrically connected to the first substrate;
a second substrate overlying the first substrate, having an opening overlying the first substrate first region, exposing the MEMS device to a first environment via the second substrate opening; and
,a wall along the first region boundaries, between the first and second substrates, isolating the MEMS device from the electrical circuit.
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Accused Products
Abstract
An integrated MEMS package and associated packaging method are provided. The method includes: forming an electrical circuit, electrically connected to the first substrate; integrating a MEMS device on a first substrate region, electrically connected to the first substrate; providing a second substrate overlying the first substrate; and, forming a wall along the first region boundaries, between the first and second substrate. In one aspect, the electrical circuit is formed using thin-film processes; and, wherein integrating the MEMS device on the first substrate region includes forming the MEMS using thin-film processes, simultaneous with the formation of the electrical device. Alternately, the MEMS device is formed in a separate process, attached to the first substrate, and electrical interconnections are formed to the first substrate using thin-film processes.
87 Citations
19 Claims
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1. An integrated microelectromechanical system (MEMS) device package, the MEMS integrated package comprising:
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a first substrate having a first region with boundaries; an electrical circuit on a second region of the first substrate, electrically connected to the first substrate; a MEMS device environmental sensor on the first region, electrically connected to the first substrate; a second substrate overlying the first substrate, having an opening overlying the first substrate first region, exposing the MEMS device to a first environment via the second substrate opening; and
,a wall along the first region boundaries, between the first and second substrates, isolating the MEMS device from the electrical circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated microelectromechanical system (MEMS) device package, the MEMS integrated package comprising:
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a liquid crystal display (LCD) substrate having a perimeter and a first region with boundaries; an electrical circuit on a second region of the first substrate, electrically connected to the first substrate; a MEMS device on the first region, electrically connected to the first substrate; a color filter substrate overlying the LCD substrate; and
,a seal formed along the perimeters of the display substrate and color filter substrate; and
,a cavity between the display substrate and the color filter substrate, bounded by the seal. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An integrated microelectromechanical system (MEMS) device package, the MEMS integrated package comprising:
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a first substrate having a first region and a groove formed along first region boundaries; an electrical circuit on a second region of the first substrate, electrically connected to the first substrate; a MEMS device on the first region, electrically connected to the first substrate; a second substrate overlying the first substrate, with a groove formed in a region opposite the groove in the first substrate; and
,a wall formed from an O-ring seated in the first and second substrate grooves. - View Dependent Claims (16, 17, 18, 19)
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Specification