摘要:
A sensor module (130) for a catheter (110), the sensor module (130) comprising a biofilm detection unit (131) adapted for detecting a characteristic of a biofilm (132) and electric circuitry (135, 800) for providing an output signal indicative of a result of the detection.
摘要:
A sensor module (130) for a catheter (110), the sensor module (130) comprising a biofilm detection unit (131) adapted for detecting a characteristic of a biofilm (132) and electric circuitry (135, 800) for providing an output signal indicative of a result of the detection.
摘要:
An apparatus and method for improving electrical contact between an implanted device (10) for recording or stimulating neuronal activity and surrounding tissue (12) (e.g., brain tissue, nerve fibers, etc.). In an exemplary embodiment, a nanometer sized topographic structure (36, 136) (e.g., a nanometer scale pillar) is processed for electrical connection with a corresponding electrode (30, 32) of the implanted device (10). The nanometer scale topographic structure (36, 136) bridges a gap (26) between the implanted device (10) and surrounding tissue (12), thus improving neuron-electrode coupling therebetween. The present disclosure can also be extended to any application where capacitive coupling to single or multiple cells (20) can be used for sensing and/or stimulation thereof.
摘要:
An apparatus and method for electrostimulation treatment of neurological diseases is disclosed herein. The apparatus and method include an array (22) of sub-micron (and sub-cell size) FET electrodes (24) that are capacitively coupled to nervous system elements (both neurons (50) and axons (66)) as a replacement for traditional metal shanks in both single- and multi-electrode(s) electrostimulation implantable devices. By using such an approach, significant improvements in selectivity, power consumption and biocompatibility can be achieved, as well as relying on mainstream IC manufacture techniques for the manufacture thereof, making it cost-effective. The present disclosure can also be extended to any application where capacitive coupling to single or multiple cells can be used for sensing and/or stimulation thereof.
摘要:
An implantable medical system for electrical recording and or providing therapy to a plurality of tissue sites without damage to surrounding blood vessels is disclosed comprising: an implant body having a plurality of therapy elements, the elements being hingedly attached at one end to the surface of the body and releasably extendable outward from the surface of the body at the other end; a release mechanism for each of the elements; and a coating material covering the body and the elements; wherein upon dissolution of the coating material after implantation, the release mechanism is capable of causing the elements to extend outward at one end from the surface of the body and into a plurality of tissue sites without damage to the surrounding blood vessels. The method of implanting the system into a body is also disclosed.
摘要:
A sensor, electrically connected to transponder, is calibrated in an environment of operational use of the transponder. The calibrating uses as a reference a value of a parameter representative of the environment.
摘要:
Method for forming a strained Si layer on a substrate (1), including formation of: an epitaxial SiGe layer (4) on a Si surface, and of: the strained Si layer by epitaxial growth of the Si layer on top of the epitaxial SiGe layer (4), the Si layer being strained due to the epitaxial growth, wherein the substrate (1) is a Silicon-On-Insulator substrate with a support layer (1), a buried silicon dioxide layer (BOX) and a monocrystalline Si surface layer (3), the method further including: ion implantation of the Si surface layer (3) and the epitaxial SiGe layer (4) to transform the Si surface layer (3) into an amorphous Si layer (3B) and a portion of the epitaxial SiGe layer (4) into an amorphous SiGe layer (5), a further portion of the epitaxial SiGe layer (4) being a remaining monocrystalline SiGe layer (6), the amorphous Si layer (3B), the amorphous SiGe layer and the remaining monocrystalline SiGe layer (6) forming a layer stack (3B, 5, 6) on the buried silicon dioxide layer (BOX), with the amorphous Si layer (3B) being adjacent to the buried silicon dioxide layer (BOX).
摘要:
The invention relates to a semiconductor device (10) having a semiconductor body (2), comprising a field effect transistor, a first gate dielectric (6A) being formed on a first surface at the location of the channel region (5) and on it a first gate electrode (7), a sunken ion implantation (20) being executed from the first side of the semiconductor body (2) through and on both sides of the first gate electrode (7), which implantation results in a change of property of the silicon below the first gate electrode (7) compared to the silicon on both sides of the gate electrode (7) in a section of the channel region (5) remote from the first gate dielectric (6A), and on the second surface of the semiconductor body (2) a cavity (30) being provided therein by means of selective etching while use is made of the change of property of the silicon. A second gate (6B,8) is deposited in the cavity thus formed. Before the ion implantation (20), a mask (M1) is formed on both sides of the gate electrode (7) and at a distance thereof, whereby after the ion implantation (20) at the location of the mask (M1) also a change in property of the silicon is obtained. In this way the device (10) can be easily provided with lateral insulation regions. Also the end regions of the gate electrodes (7,8) can in this way be surrounded by insulation regions.
摘要:
In a method of manufacturing a semiconductor device comprising a semiconductor body (1) of a first conductivity type which is provided at a surface (2) with a transistor having a gate (28) insulated from a channel (13) provided at the surface (2) of the semiconductor body (1) by a gate dielectric (26), a structure is provided on the surface (2) comprising a dielectric layer (14) having a recess (16), which recess (16) is aligned to a source zone (11,9) and a drain zone (12,9) of a second conductivity type provided at the surface (2) of the semiconductor body (1) and has side walls (17) extending substantially perpendicularly to the surface (2) of the semiconductor body (1). In this recess (16), a double-layer (20) is applied consisting of a second sub-layer (19) on top of a first sub-layer (18), which second sub-layer (19) is removed over part of its thickness until the first sub-layer is exposed, which first sub-layer (18) is selectively etched with respect to the second sub-layer (19) and the side walls (17) of the recess (16) to a depth, thereby forming trenches (21) extending substantially perpendicularly to the surface (2) of the semiconductor body (1). Via these trenches (21) impurities of the first conductivity type are introduced into the semiconductor body (1), thereby forming pocket implants (22).
摘要:
A semiconductor device (1) and a method are disclosed for obtaining on a substrate (2) a multilayer structure (3) with a quantum well structure (4). The quantum well structure (4) comprises a semiconductor layer (5) sandwiched by insulating layers (6,6′), wherein the material of the insulating layers (6,6′) has preferably a high dielectric constant. In a FET the quantum wells (4,9) function as channels, allowing a higher drive current and a lower off current. Short channel effects are reduced. The multi-channel FET is suitable to operate even for sub-35 nm gate lengths.In the method the quantum wells are formed by epitaxial growth of the high dielectric constant material and the semiconductor material alternately on top of each other, preferably with MBE.