B81C1/0023

Reconstructed wafer based devices with embedded environmental sensors and process for making same

A one or multi-die module comprises multiple dies. The module includes at least one die with a sensor having a sensing region, an encapsulation layer covering top sides of the multiple dies, and a redistribution layer (RDL) covering bottom sides of the multiple dies except for the sensing region. In embodiments, a cap is formed over the sensing region, which has at least a portion that is spaced away from a bottom side of the module. Metal connectors, such as solder balls, are formed on the redistribution layer to provide connection points to the module. This approach can be used to incorporate environmental sensor dies into multi-die modules. It utilizes RDL and openings in the RDL in order to provide robust packaging for the dies, while also allowing the sensor dies to be selectively exposed to the environment.

MICROELECTROMECHANICAL SYSTEM (MEMS) DEVICE PACKAGING
20190169022 · 2019-06-06 · ·

Systems, apparatuses, and methods for manufacturing a microelectromechanical system (MEMS) device. The MEMS device includes a substrate, a cap, a microelectromechanical component, and a tag. The cap is coupled to the substrate such that the substrate and the cap cooperatively define an interior cavity. One of the substrate or the cap defines a port. The microelectromechanical component is disposed within the interior cavity. The tag is coupled to the substrate and an exterior surface of the cap to secure the cap to the substrate.

Semiconductor pressure sensor for harsh media application

A semiconductor pressure sensor assembly for measuring a pressure of an exhaust gas which contains corrosive components, comprising: a first cavity, a pressure sensor comprising first bondpads for electrical interconnection, a CMOS chip comprising second bondpads for electrical interconnection with the pressure sensor, an interconnection module having electrically conductive paths connected via bonding wires to the pressure sensor and to the CMOS chip; the interconnection module being a substrate with corrosion-resistant metal tracks, wherein the CMOS chip and part of the interconnection module are encapsulated by a plastic package.

Inductively coupled microelectromechanical system resonator

An integrated circuit package includes a first die that has a microelectromechanical system (MEMS) resonator coupled to a coil. A second die includes a coil fabricated on a top surface of the second die, and an electronic circuit with tank circuit terminals fabricated on the second die and coupled to the second coil. The second die is positioned adjacent the first die such that the first coil is operable to electromagnetically couple to the second coil.

VERTICALLY STACKED MEMS DEVICES AND CONTROLLER DEVICE

Various arrangements for a microelectromechanical (MEMS) die and a controller die in vertically stacked structures are disclosed. The orientations of the MEMS die and the controller die vary in the various arrangements. In one embodiment, a backside surface of the MEMS die is operably connected to a frontside surface of the controller die. In another embodiment, a backside surface of the MEMS die is operably connected to a backside surface of the controller die. In another embodiment, a frontside surface of the MEMS die is operably connected to a backside surface of the controller die. In yet another embodiment, a frontside surface of the MEMS die is operably connected to a frontside surface of the controller die.

Microelectromechanical Systems Sensor with Frequency Dependent Input Attenuator
20240217810 · 2024-07-04 ·

A microelectromechanical systems (MEMS) sensor, a capacitive MEMS motor sensing circuit and a method are provided. The present application provides a microelectromechanical systems (MEMS) sensor. The MEMS sensor includes a housing having electrical contacts disposed on an exterior of the housing. The MEMS sensor further includes a capacitive MEMS motor disposed in the housing, and an electrical circuit disposed in the housing and being electrically coupled to the electrical contacts. The electrical circuit includes a bias voltage source having an output coupled to an input of the MEMS motor. The electrical circuit further includes a buffer circuit including an amplifier input stage having an input coupled to an output of the MEMS motor. The electrical circuit still further includes a frequency dependent input attenuator including a feedback capacitor and an input attenuator low pass filter, the input attenuator low pass filter having an input coupled to the output of the amplifier input stage and an output coupled to a first terminal of the feedback capacitor, where a second terminal of the feedback capacitor is coupled to the input of the amplifier input stage.

Microelectromechanical system (MEMS) on application specific integrated circuit (ASIC)

In embodiments, a package assembly may include an application-specific integrated circuit (ASIC) and a microelectromechanical system (MEMS) having an active side and an inactive side. In embodiments, the MEMS may be coupled directly to the ASIC by way of one or more interconnects. The MEMS, ASIC, and one or more interconnects may define or form a cavity such that the active portion of the MEMS is within the cavity. In some embodiments, the package assembly may include a plurality of MEMS coupled directly to the ASIC by way of a plurality of one or more interconnects. Other embodiments may be described and/or claimed.

Fully wafer-level-packaged MEMS microphone and method for manufacturing the same
10306372 · 2019-05-28 · ·

The present invention provides a method for manufacturing a fully wafer-level-packaged MEMS microphone and a microphone manufactured with the same, the method comprises: separately manufacturing a first packaging wafer, an MEMS microphone wafer and a second packaging wafer; performing wafer-to-wafer bonding for the three wafers to form a plurality of fully wafer-level-packaged MEMS microphone units; singulating the fully wafer-level-packaged MEMS microphone units to form a plurality of fully wafer-level-packaged MEMS microphones, which are fully packaged at wafer level and do not need any further process after die singulation. The method can improve cost-effectiveness, performance consistency, manufacturability, quality, scaling capability of the packaged MEMS microphone.

MEMS microphone package

A MEMS microphone package includes a substrate including a base layer, a sound hole cut through opposing top and bottom surfaces of the base layer, a conduction part arranged on the base layer and a notch located on the top surface of the base layer, a sidewall connected with one end thereof to the top surface of the base layer and having a conducting line electrically connected to the conduction part, a cover plate connected to an opposite end of the sidewall and having a solder pad and a third contact disposed in conduction with the solder pad and electrically connected to the conducting line, a processor chip mounted in the notch and electrically connected to the conduction part, and an acoustic wave sensor mounted on the base layer to face toward the sound hole and electrically connected to the processor chip.

MULTIPLE PLATED VIA ARRAYS OF DIFFERENT WIRE HEIGHTS ON SAME SUBSTRATE
20190148344 · 2019-05-16 · ·

Apparatus(es) and method(s) relate generally to via arrays on a substrate. In one such apparatus, the substrate has a conductive layer. First plated conductors are in a first region extending from a surface of the conductive layer. Second plated conductors are in a second region extending from the surface of the conductive layer. The first plated conductors and the second plated conductors are external to the first substrate. The first region is disposed at least partially within the second region. The first plated conductors are of a first height. The second plated conductors are of a second height greater than the first height. A second substrate is coupled to first ends of the first plated conductors. The second substrate has at least one electronic component coupled thereto. A die is coupled to second ends of the second plated conductors. The die is located over the at least one electronic component.