B81C1/00095

Epi-Poly Etch Stop for Out of Plane Spacer Defined Electrode
20170297896 · 2017-10-19 ·

A device with an out-of-plane electrode includes a device layer positioned above a handle layer, a first electrode defined within the device layer, a cap layer having a first cap layer portion spaced apart from an upper surface of the device layer by a gap, and having an etch stop perimeter defining portion defining a lateral edge of the gap, and an out-of-plane electrode defined within the first cap layer portion by a spacer.

Method for making a suspended membrane structure with buried electrode

A microsystem and/or nanosystem type device is disclosed, comprising: a first substrate, or intermediate substrate, comprising a mobile part, a second substrate or support substrate, at least one lower electrode, and one dielectric layer (101) located between the first and second substrates, the dielectric layer being arranged between the lower electrode and the first substrate; the first substrate comprising through vias filled with conducting material in contact with said lower electrode.

Method for forming an electrically conductive via in a substrate

A method for forming an electrically conductive via in a substrate that includes the steps of: forming a through hole in a first substrate; bringing a first surface of a second substrate into contact with the first surface of the first substrate, such that the through hole in the first substrate is covered by the first surface of the second substrate; filling the through hole in the first substrate with an electrically conductive material by electroplating to form the electrically conductive via, and removing the second substrate, wherein the first surface of the first and the second substrate each have a surface roughness R.sub.a of less than 2 nm, preferably less than 1 nm, more preferably less than 0.5 nm, and the first surface of the first and the second substrate are brought in direct contact with each other, such that a direct bond is formed there between.

MEMS chip and electrical packaging method for MEMS chip
11242243 · 2022-02-08 · ·

Embodiments of the application provide a MEMS chip and an electrical packaging method for a MEMS chip. The MEMS chip includes a MEMS device layer, a first isolating layer located under the MEMS device layer, and a first conducting layer located under the first isolating layer. At the first isolating layer, there are a corresponding quantity of first conductive through holes in locations corresponding to conductive structures in a first region and in locations corresponding to electrodes in a second region. At the first conducting layer, there are M electrodes spaced apart from one another, and the M electrodes are respectively connected to M of the first conductive through holes. At the first conducting layer, electrodes in locations corresponding to at least some of the conductive structures in the first region are electrically connected in a one-to-one correspondence to electrodes in locations corresponding to at least some of the electrodes in the second region.

Packaged pressure sensor device

Embodiments of a packaged electronic device and method of fabricating such a device are provided, where the packaged electronic device includes: a pressure sensor die having a diaphragm on a front side; an encapsulant material that encapsulates the pressure sensor die, wherein the front side of the pressure sensor die is exposed at a first major surface of the encapsulant material; an interconnect structure formed over the front side of the pressure sensor die and the first major surface of the encapsulant material, wherein an opening through the interconnect structure is generally aligned to the diaphragm; and a cap attached to an outer dielectric layer of the interconnect structure, the cap having a vent hole generally aligned with the opening through the interconnect structure.

THROUGH SUBSTRATE VIAS USING SOLDER BUMPS

A through substrate via is formed by disposing a quantity of solder material at the top of a through hole formed in a substrate, coating the hole with a wetting layer, and melting the solder material such that it flows into the hole. The solder material may alloy with the wetting layer, freezing upon formation of the alloy. Subsequent processing steps may be performed at temperatures higher than the melting point of the solder material.

METHOD FOR MANUFACTURING SEMICONDUCTOR SUBSTRATE, METHOD FOR MANUFACTURING DAMASCENE WIRING STRUCTURE, SEMICONDUCTOR SUBSTRATE, AND DAMASCENE WIRING STRUCTURE

A method of manufacturing a semiconductor substrate according to an embodiment includes a first step of forming a groove having a bottom surface and a side surface on which scallops are formed by performing a process including isotropic etching on a main surface of a substrate, a second step of performing at least one of a hydrophilic treatment on the side surface of the groove and a degassing treatment on the groove, and a third step of removing the scallops formed on the side surface of the groove and planarizing the side surface by performing anisotropic wet etching in a state where the bottom surface of the recess is present.

Materials and Methods for Passivation of Metal-Plated Through Glass Vias

A through-glass via (TGV) formed in a glass substrate may comprise a metal plating layer formed in the TGV. The TGV may have a three-dimensional (3D) topology through the glass substrate and the metal plating layer conformally covering the 3D topology. The TGV may further comprise a barrier layer disposed over the metal plating layer, and a metallization layer disposed over the barrier layer. The metallization layer may be electrically coupled to the metal plating layer through the barrier layer. The barrier layer may comprise a metal-nitride film disposed on the metal plating layer that is electrically coupled to the metallization layer. The barrier layer may comprise a metal film disposed over the metal plating layer and over a portion of glass surrounding the TGV, and an electrically-insulating film disposed upon the metal film, the electrically-insulating film completely overlapping the metal plating layer and partially overlapping the metal film.

Packaged device with die wrapped by a substrate

A die-wrapped packaged device includes at least one flexible substrate having a top side and a bottom side that has lead terminals, where the top side has outer positioned die bonding features coupled by traces to through-vias that couple through a thickness of the flexible substrate to the lead terminals. At least one die includes a substrate having a back side and a topside semiconductor surface including circuitry thereon having nodes coupled to bond pads. One of the sides of the die is mounted on the top side of the flexible circuit, and the flexible substrate has a sufficient length relative to the die so that the flexible substrate wraps to extend over at least two sidewalls of the die onto the top side of the flexible substrate so that the die bonding features contact the bond pads.

Structure for microelectromechanical systems (MEMS) devices to control pressure at high temperature

Various embodiments of the present disclosure are directed towards an integrated chip including a capping structure over a device substrate. The device substrate includes a first microelectromechanical systems (MEMS) device and a second MEMS device laterally offset from the first MEMS device. The capping structure includes a first cavity overlying the first MEMS device and a second cavity overlying the second MEMS device. The first cavity has a first gas pressure and the second cavity has a second gas pressure different from the first cavity. An outgas layer abutting the first cavity. The outgas layer includes an outgas material having an outgas species. The outgas material is amorphous.