B81C1/00103

Methods for manufacturing micromechanical components and method for manufacturing a mould insert component

Method of manufacturing a micromechanical component intended to cooperate with another micromechanical component, the method comprising the steps of providing a substrate, forming a mould on said substrate, said mould defining sidewalls arranged to delimit said micromechanical component, providing particles on at least said sidewalls, depositing a metal in said mould so as to form said micromechanical component, and liberating said micromechanical component from said mould and removing said particles.

Semiconductor ICF target processing
11443937 · 2022-09-13 · ·

A method of manufacturing a semiconductor ICF target is described. On an n-type silicon wafer a plurality of hard mask layers are etched to a desired via pattern. Then isotropically etching hemispherical cavities, lithographically patterning the hard mask layers, conformally depositing ablator/drive material(s) and shell layer material(s), inserting hollow silicon dioxide fuel spheres in the hemisphere cavities, thermally bonding a mating wafer with matching hemisphere cavities and etching in ethylene diamine-pryrocatechol-water mixture to selectively remove n-type silicon and liberate the spherical targets.

Manufacturing method for a micromechanical window structure and corresponding micromechanical window structure

A manufacturing method for a micromechanical window structure including the steps: providing a substrate, the substrate having a front side and a rear side; forming a first recess on the front side; forming a coating on the front side and on the first recess; and forming a second recess on the rear side, so that the coating is at least partially exposed, whereby a window is formed by the exposed area of the coatings.

WAFER ETCHING PROCESS AND METHODS THEREOF

A method includes bonding a first surface of a first semiconductor substrate to a first surface of a second semiconductor substrate and forming a cavity in the first area of the first semiconductor substrate, where forming the cavity comprises: supplying a passivation gas mixture that deposits a passivation layer on a bottom surface and sidewalls of the cavity, where during deposition of the passivation layer, a deposition rate of the passivation layer on the bottom surface of the cavity is the same as a deposition rate of the passivation layer on sidewalls of the cavity; and etching the first area of the first semiconductor substrate using an etching gas, where the etching gas is supplied concurrently with the passivation gas mixture, etching the first area of the first semiconductor substrate comprises etching in a vertical direction at a greater rate than etching in a lateral direction.

PULSE TRAIN EXCITATION FOR CAPACATIVE MICROMACHINED ULTRASONIC TRANSDUCER
20210220872 · 2021-07-22 ·

Aspects of this disclosure relate to driving a capacitive micromachined ultrasonic transducer (CMUT) with a pulse train of unipolar pulses. The CMUT may be electrically excited with a pulse train of unipolar pulses such that the CMUT operates in a continuous wave mode. In some embodiments, the CMUT may have a contoured electrode.

CONTOURED ELECTRODE FOR CAPACITIVE MICROMACHINED ULTRASONIC TRANSDUCER
20210220873 · 2021-07-22 ·

Aspects of this disclosure relate to a capacitive micromachined ultrasonic transducer (CMUT) with a contoured electrode. In certain embodiments, the CMUT has a contoured electrode. The electrode may be non-planar to correspond to a deflected shape of the outer plate. A change in distance between the electrode and the plate after deflection may be greater than a minimum threshold across the width of the CMUT.

METHODS FOR MANUFACTURING MICROMECHANICAL COMPONENTS AND METHOD FOR MANUFACTURING A MOULD INSERT COMPONENT

Method of manufacturing a micromechanical component intended to cooperate with another micromechanical component, the method comprising the steps of providing a substrate, forming a mould on said substrate, said mould defining sidewalls arranged to delimit said micromechanical component, providing particles on at least said sidewalls, depositing a metal in said mould so as to form said micromechanical component, and liberating said micromechanical component from said mould and removing said particles.

THERMOFORMED, INJECTION MOLDED, AND/OR OVERMOLDED MICROFLUIDIC STRUCTURES AND TECHNIQUES FOR MAKING THE SAME

Laminated microfluidic structures and methods for manufacturing the same are provided. In some instances, a laminated microfluidic structure is provided which includes a distended region having a sipper port at the bottom and an internal channel that fluidically connects the sipper port to a location outside of the distended region. Thermoforming and/or injection molding techniques for manufacturing such laminated microfluidic structures are provided. In other instances, a laminated microfluidic structure may be co-molded with a polymeric material to produce an integrated laminated microfluidic structure and housing.

Component especially for horology with surface topology and method for manufacturing the same

A system including two components intended to be in friction contact with each other in a given direction, wherein the friction occurs in a functional area, wherein the system is at least one of the two components including, on a surface in the functional area, a texture formed of a series of troughs of rounded shape separated by peaks or a series of bumps of rounded shape separated by troughs, the troughs extending parallel in the given direction and allowing for the evacuation of debris produced by friction and serving as a reservoir for a lubricant. A method for manufacturing at least one component or a mold by the DRIE (deep reactive ion etching) process, wherein surface defects on the sidewalls machined by the DRIE process are used to form the troughs.

Membrane Support for Dual Backplate Transducers

A microfabricated structure includes a deflectable membrane, a first clamping layer on a first surface of the deflectable membrane, a second clamping layer on a second surface of the deflectable membrane, a first perforated backplate on the first clamping layer, and a second perforated backplate on the second clamping layer, wherein the first clamping layer comprises a first tapered edge portion having a negative slope between the first perforated backplate and the deflectable membrane.