B81C1/00849

APPARATUS FOR DETECTING AN ANALYTE WITH SURFACE ENHANCED RAMAN SCATTERING

A surface enhanced Raman scattering (SERS) active nanoassembly comprising anisotropically assembled gold nanoparticles in a monolayer double row immobilized on a glass layer is disclosed. The discrete gold nanoparticles are separated by interparticle gaps of 0.5-10 nm that provide hotsites where appropriate excitation creates surface plasmon resonaces and regions of strong and localized electromagnetic fields that enhance Raman signal substantially, 10.sup.4-10.sup.15 fold. An appropriate SERS apparatus comprising the nanoassembly for detecting an analyte is also disclosed. In addition, a method for producing the nanoassembly as well as the application of the nanoassembly or the apparatus comprising the nanoassembly in a method for measuring the SERS signal of an analyte is disclosed.

Anisotropic monolayer gold nanoassembly: a highly SERS-active substrate for molecular detection

A surface enhanced Raman scattering (SERS) active nanoassembly comprising anisotropically assembled gold nanoparticles in a monolayer double row immobilized on a glass layer is disclosed. The discrete gold nanoparticles are separated by interparticle gaps of 0.5-10 nm that provide hotsites where appropriate excitation creates surface plasmon resonaces and regions of strong and localized electromagnetic fields that enhance Raman signal substantially, 10.sup.4-10.sup.15 fold. An appropriate SERS apparatus comprising the nanoassembly for detecting an analyte is also disclosed. In addition, a method for producing the nanoassembly as well as the application of the nanoassembly or the apparatus comprising the nanoassembly in a method for measuring the SERS signal of an analyte is disclosed.

PRODUCTION METHOD FOR A DETECTION APPARATUS AND DETECTION APPARATUSES
20170205301 · 2017-07-20 ·

A production method for a detection apparatus includes: forming at least one sensitive region having at least one exposed sensing area on and/or in a semiconductor substrate, encapsulating at least one part of the semiconductor substrate so that the at least one sensing area is sealed in an air-, liquid- and/or particle-tight fashion from an external environment, and forming at least one opening so that at least one air, liquid and/or particle access from the external environment to the at least one sensing area is created, wherein before forming the at least one opening, at least one first test and/or calibration measurement is performed, for which at least one sensor signal of the at least one sensitive region having the at least one sensing area sealed in an air-, liquid- and/or particle-tight fashion is determined as at least one first test and/or calibration signal. Also described are related detection apparatuses.

METHOD OF ADDRESSING FILM LIFTOFF IN MEMS FABRICATION
20170174510 · 2017-06-22 ·

A method of fabricating a MEMS device. A first spacer is formed above a CMOS substrate containing circuitry. Vias are formed within the first spacer. A first metal is formed above the first spacer and vias and patterned to form a MEMS element. A second spacer is formed above the MEMS element and first spacer. A via is formed within the second spacer. A second metal is formed above the second spacer and the via. A capping layer is formed above the second metal. The second metal is patterned to form a second MEMS element. The device is cleaned using a developer solution while the capping layer protects the second MEMS element. The first and second spacers are removed to release the first and second MEMS elements.

Etch release residue removal using anhydrous solution

A method of making a microelectromechanical systems (MEMS) device includes etching away a sacrificial material layer to release a mechanical element of the MEMS device. The MEMS device is formed at least partially on the sacrificial material layer, and the etching leaves a residue in proximity to the mechanical element. The residue is exposed to an anhydrous solution to remove the residue. The residue may be an ammonium fluorosilicate-based residue, and the anhydrous solution may include acetic acid, isopropyl alcohol, acetone, or any anhydrous solution that can effectively dissolve the ammonium fluorosilicate-based residue.

MEMS device with over-travel stop structure and method of fabrication
09638712 · 2017-05-02 · ·

A MEMS device comprises a substrate, a proof mass spaced apart from a surface of the substrate, and an over-travel stop structure. The over-travel stop structure includes a lateral stop structure and a cap coupled to the lateral stop structure. The MEMS device is fabricated to include relatively small gap sections and relatively large gap regions separating the lateral stop structure from the proof mass. The larger gap regions are covered by the cap and the smaller gap sections are exposed from the gap. During fabrication, removal of particles from the smaller gap sections is facilitated by their exposure from the cap and removal of particles from the larger gap regions underlying the cap is facilitated by their larger size. The lateral stop structure may be cross-shaped to limit deflection of the proof mass along two in-plane axes. The cap limits deflection of the proof mass along an out-of-plane axis.

ANISOTROPIC MONOLAYER GOLD NANOASSEMBLY: A HIGHLY SERS-ACTIVE SUBSTRATE FOR MOLECULAR DETECTION

A surface enhanced Raman scattering (SERS) active nanoassembly comprising anisotropiccally assembled gold nanoparticles in a monolayer double row immobilized on a glass layer is disclosed. The discrete gold nanoparticles are separated by interparticle gaps of 0.5-10 nm that provide hotsites where appropriate excitation creates surface plasmon resonaces and regions of strong and localized electromagnetic fields that enhance Raman signal substantially, 10.sup.4-10.sup.15 fold. An appropriate SERS apparatus comprising the nanoassembly for detecting an analyte is also disclosed. In addition, a method for producing the nanoassembly as well as the application of the nanoassembly or the apparatus comprising the nanoassembly in a method for measuring the SERS signal of an analyte is disclosed.

Method for manufacturing mirror device

A method for manufacturing a mirror device, the method includes a first step of preparing a wafer having a support layer, a device layer, and an intermediate layer; a second step of forming a slit in the wafer such that the movable portion becomes movable with respect to the base portion by removing a part of each of the support layer, the device layer, and the intermediate layer from the wafer and forming a plurality of parts each corresponding to the structure in the wafer, after the first step; a third step of performing wet cleaning using a cleaning liquid after the second step; and a fourth step of cutting out each of the plurality of parts from the wafer after the third step. In the second step, a part of the intermediate layer is removed from the wafer by anisotropic etching.

MEMS pressure sensor and method of manufacturing the same

A method of manufacturing a pressure sensor is provided. The method includes: providing a substrate, wherein a bottom electrode and a pressure sensing film are disposed on the substrate; forming an etch stop assembly on the pressure sensing film at a location corresponding to a pressure trench; forming a cover layer on the substrate covering the etch stop assembly and the pressure sensing film; forming a mask layer on the cover layer, wherein an opening of the mask layer is formed above the etch stop assembly and exposes a portion of the cover layer at the location corresponding to the pressure trench; etching the cover layer using the mask layer so as to form the pressure trench in the cover layer; removing the etch stop assembly at a bottom of the pressure trench; and removing the mask layer.

Sublimation in forming a semiconductor
12322585 · 2025-06-03 · ·

The present disclosure includes apparatuses and methods related to sublimation in forming a semiconductor. In an example, a method may include forming a sacrificial material in an opening of a structure, wherein the sacrificial material displaces a solvent used in a wet clean operation and removing the sacrificial material via sublimation by exposing the sacrificial material to sub-atmospheric pressure.