Abstract:
A microfabricated device is fabricated by depositing a first metal layer on a substrate to provide a first electrode of an electrostatic actuator, depositing a first structural polymer layer over the first metal layer, depositing a second metal layer over said first structural polymer layer to form a second electrode of the electrostatic actuator, depositing an insulating layer over said first structural polymer layer, planarizing the insulating layer, etching the first structural polymer layer through the insulating layer and the second metal layer to undercut the second metal layer, providing additional pre-formed structural polymer layers, at least one of which has been previously patterned, and finally bonding the additional structural layers in the form of a stack over the planarized second insulating layer to one or more microfluidic channels. The technique can also be used to make cross over channels in devices without electrostatic actuators, in which case the metal layers can be omitted.
Abstract:
The semiconductor component, in particular for use as a component that is sensitive to mechanical stresses in a micro-electromechanical semiconductor component, for example a pressure or acceleration sensor, is provided with a semiconductor substrate (1, 5), in the upper face of which an active region (78a, 200) made of a material of a first conductivity type is introduced by ion implantation. A bisecting channel region having a defined length (L) and width (B) is designed within the active region (78a, 200). In the active region (78a, 200), each of the ends of the channel region located in the longitudinal extension is followed by a contacting region (79, 80) made of a semiconductor material of a second conductivity type. The channel region is covered by an ion implantation masking material (81), which comprises transverse edges defining the length (L) of the channel region and longitudinal edges defining the width (B) of the channel region and which comprises an edge recess (201, 202) at each of the opposing transverse edges aligned with the longitudinal extension ends of the channel region, the contacting regions (79, 80) that adjoin the channel region extending all the way into said edge recess.
Abstract:
The present invention relates to a channel structure for a bioreactor, biochemical reactor, chemical reactor or a reformer comprising a plurality of individual layers (1A, 1B, 1C) stacked on one another and having a respective plurality of openings (3) which pass completely through the respective individual layer and which are characterized in that at least two directly adjacent individual layers each have at least one layer section whose openings are arranged in the form of a pattern (4) respectively regular in two dimensions (D1, D2) and in that at least two of the layer sections provided with such a pattern in this manner of directly adjacent individual layers overlap (5) at least in part, wherein the openings of the two at least partly overlapping layer sections are rotated and/or offset with respect to one another in the overlap region.
Abstract:
Systems and methods for a micro-electromechanical system (MEMS) device are provided. In one embodiment, a system comprises a first outer layer and a first device layer comprising a first set of MEMS devices, wherein the first device layer is bonded to the first outer layer. The system also comprises a second outer layer and a second device layer comprising a second set of MEMS devices, wherein the second device layer is bonded to the second outer layer. Further, the system comprises a central layer having a first side and a second side opposite that of the first side, wherein the first side is bonded to the first device layer and the second side is bonded to the second device 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 composite (1) comprising a first semiconductor substrate (4) having at least one MEMS-component (2) and at least one second semiconductor substrate (4), wherein at least one layer (6) comprising germanium is bonded eutectically with at least one layer (3) comprising aluminum. According to the invention, the layer (3) comprising aluminum is provided on the first semiconductor substrate (1) and the layer (6) comprising germanium on the second semiconductor substrate (4). The invention further relates to a production method for a composite (1).
Abstract:
Provided are integrated analysis devices having features of macroscale and nanoscale dimensions, and devices that have reduced background signals and that reduce quenching of fluorophores disposed within the devices. Related methods of manufacturing these devices and of using these devices are also provided.