MEMS ENCAPSULATION EMPLOYING LOWER PRESSURE AND HIGHER PRESSURE DEPOSITION PROCESSES

    公开(公告)号:US20220324702A1

    公开(公告)日:2022-10-13

    申请号:US17514282

    申请日:2021-10-29

    Abstract: A micro-electromechanical system (MEMS) device includes a moveable element within a cavity. The MEMS device also includes a first layer over the cavity, the first layer having a first hole and a second hole. The first hole has a first diameter. The second hole has a second diameter. The second diameter is larger than the first diameter, and the second hole is farther from the moveable element than the first hole. The first hole is sealed with a first dielectric material. The second hole is sealed with a second dielectric material. The cavity filled with a gas at a pressure of at least approximately 10 torr.

    FRINGING-FIELD, PARALLEL PLATE ACTUATOR

    公开(公告)号:US20250035919A1

    公开(公告)日:2025-01-30

    申请号:US18908271

    申请日:2024-10-07

    Abstract: A microelectromechanical systems (MEMS) device includes a base plate including a first electrode and a second electrode and a top layer. The MEMS device also includes a perforated hinge plate supporting the top layer. The perforated hinge plate includes first and second flexural arms permitting the perforated hinge plate and the top layer to move relative to the base plate. The perforated hinge plate has a first perforation that includes the first electrode and has a footprint that is larger than a footprint of the first electrode, and the perforated hinge plate has a second perforation that includes the second electrode and has a footprint that is larger than a footprint of the second electrode. Additionally, the MEMS device includes a first support post to which the first flexural arm is connected and a second support post to which the second flexural arm is connected.

    FRINGING-FIELD, PARALLEL PLATE ACTUATOR

    公开(公告)号:US20210215928A1

    公开(公告)日:2021-07-15

    申请号:US17114369

    申请日:2020-12-07

    Abstract: A phase light modulator includes a base plate, a mirror, a perforated hinge plate, and first second support posts. The perforated hinge plate supports the mirror. The perforated hinge plate has first and second flexural arms. The perforated hinge plate is configured to move toward or away from the base plate based on application of a potential difference between the base plate and the perforated hinge plate. The first flexural arm is connected to the first support posts, and the second flexural arm is connected to the second support post.

    BACKGROUND SUPPRESSION FOR DOPPLER-FREE MM-WAVE SPECTROSCOPY

    公开(公告)号:US20210199598A1

    公开(公告)日:2021-07-01

    申请号:US16730838

    申请日:2019-12-30

    Abstract: A system includes first and second gas cells each comprising a respective sealed interior waveguide; first transmit antenna coupled to the first gas cell to provide a first electromagnetic wave to the first gas cell along a first direction; second transmit antenna coupled to the first gas cell to provide a second electromagnetic wave to the first gas cell along a second direction opposite the first direction; third transmit antenna coupled to the second gas cell to provide a third electromagnetic wave to the second gas cell; first receive antenna coupled to the first gas cell to generate a first signal indicative of an amount of energy in first electromagnetic wave; second receive antenna coupled to the second gas cell to generate a second signal indicative of an amount of energy in second electromagnetic wave; and processor to calculate a background-free signal based on a difference between first and second signals.

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