Abstract:
In a semiconductor device, a first semiconductor substrate includes a first element on a first-surface side thereof, and a second semiconductor substrate includes a second element and a wiring part on a first-surface side thereof. The first semiconductor substrate and the second semiconductor substrate are attached with each other in such a manner that a first surface of the first semiconductor substrate is opposite a first surface of the second semiconductor substrate. A hole is provided from a second surface of the first semiconductor substrate to the wiring part through the first semiconductor substrate, and a sidewall of the hole is insulated. A drawing wiring part made of a conductive member fills the hole.
Abstract:
Conventional heat bonding and anodic bonding require heating at high temperature and for a long time, leading to poor production efficiency and occurrence of a warp due to a difference in thermal expansion, resulting in a defective device. Such a problem is solved. An upper wafer 7 made of glass and a lower wafer 8 made of Si are surface-activated using an energy wave before performing anodic bonding, thereby performing bonding at low temperature and increasing a bonding strength. In addition, preliminary bonding due to surface activation is performed before main bonding due to anodic bonding is performed in a separate step or device, thereby increasing production efficiency, and enabling bonding of a three-layer structure without occurrence of a warp.
Abstract:
A support unit for a microfluidic system includes a first support; a first adhesive layer provided on a surface of the first support; and a hollow filament laid on a surface of the first adhesive layer to have an arbitrary shape and functioning as a flow channel layer of the microfluidic system.
Abstract:
A support unit for a microfluidic system includes a first support; a first adhesive layer provided on a surface of the first support; and a hollow filament laid on a surface of the first adhesive layer to have an arbitrary shape and functioning as a flow channel layer of the microfluidic system.
Abstract:
Substrates to be aligned comprise microcoils arranged at the level of their facing surfaces. In an alignment phase, power is supplied to at least the microcoils of the first substrate, whereas the inductance of the microcoils of the second substrate is measured. The microcoils are preferably flat microcoils in the form of a spiral or a serpentine.
Abstract:
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract:
A microstructured component having a layered construction may allow implementation of component structures having a layer thickness of more than 50 μm, e.g., more than 100 μm. Capping of the component structure may allow vacuum enclosure of the component structure with a hermetically sealed electrical connection. The layered construction of the microstructured component includes a carrier including at least one glass layer, e.g., a PYREX™ layer, a component structure, arranged in a silicon layer, which is bonded to the glass layer, and a cap, which is positioned over the component structure and is also bonded to the glass layer.
Abstract:
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract:
The invention relates to a method of manufacturing a microsystem and further to such microsystem. With the method a microsystem can be manufactured by stacking pre-processed foils (10) having a conductive layer (11a,11b) on at least one side. After stacking, the foils (10) are sealed, using pressure and heat. Finally the microsystems are separated from the stack (S). The pre-processing of the foils (preferably done by means of a laser beam) comprises a selection of the following steps: (A) leaving the foil intact, (B) locally removing the conductive layer, (C) removing the conductive layer and partially evaporating the foil (10), and (D) removing both the conductive layer as well as foil (10), thus making holes in the foil (10). In combination with said stacking, it is possible to create cavities, freely suspended cantilevers and membranes. This opens up the possibility of manufacturing various microsystems, like MEMS devices and microfluidic systems.
Abstract:
A method for forming a vibrating micromechanical structure having a single crystal silicon (SCS) micromechanical resonator formed using a two-wafer process, including either a Silicon-on-insulator (SOI) or insulating base and resonator wafers, wherein resonator anchors, capacitive air gap, isolation trenches, and alignment marks are micromachined in an active layer of the base wafer; the active layer of the resonator wafer is bonded directly to the active layer of the base wafer; the handle and dielectric layers of the resonator wafer are removed; windows are opened in the active layer of the resonator wafer; masking the active layer of the resonator wafer with photoresist; a SCS resonator is machined in the active layer of the resonator wafer using silicon dry etch micromachining technology; and the photoresist is subsequently dry stripped. A patterned SCS cover is bonded to the resonator wafer resulting in hermetically sealed chip scale wafer level vacuum packaged devices.