摘要:
The invention relates to a method for producing a locally structured semiconductor layer on a substrate, a reactive gas being supplied to the surface of the substrate while the substrate is etched or doped or a semiconductor substance is deposited onto the substrate. The term "structured" does not only refer to purely mechanical or topographical structures but also to locally doped regions.
摘要:
The present invention relates to a method for modifying an electrically non-conductive workpiece via spark erosion. The inventive method comprises the following steps: a) providing a workpiece comprising an electrically non-conductive surface; b) providing a first working electrode facing the workpiece at a region to be modified such that a gap is provided between the workpiece and the first working electrode; c) providing a dielectric comprising conductive particles, wherein the conductive particles are obtained via a burn-off from a second working electrode in a dielectric liquid; d) flushing the dielectric comprising the conductive particles to the workpiece, preferably continuously, such that the conductive particles of the dielectric liquid are deposited at the region to be modified and form an assisting electrode on the electrically non-conductive surface, wherein the dielectric liquid preferably fills the gap between the workpiece and the first working electrode; and e) applying an electric current to the first working electrode such that a plasma channel is generated between the first working electrode and the assisting electrode at the region to be modified, thereby modifying the workpiece via spark erosion.
摘要:
The present invention relates to a fluid distribution element for single-phase or multi-phase fluids, comprising a carrier structure (2), which has a curved surface at least in some areas and which has at least one channel structure and/or fluid guide (4) for distributing fluid, the channel structure and/or fluid guide having branches and/or unions (3), and a method for the production thereof. The fluid distribution elements according to the invention are used in heat exchangers or devices for mass transfer between fluids.
摘要:
The invention relates to a method for producing a crystalline silicon layer on a substrate, wherein a deposition of a metal layer on a substrate, and subsequent deposition of a silicon layer on the metal layer occurs. Subsequently, a zone-guided heating of the silicon layer takes place, and finally, the metal layer is stripped off. The invention further relates to a crystalline silicon layer thus produced. The method according to the invention can be used in the production of sensors, silicon-based light diodes, flat screens, or optical filters.
摘要:
The present invention relates to a method for purifying analyte molecules and in particular to a component of this type in which a separation section is used for separating analyte molecules and other constituents of a sample, and in which provision is made of at least one sample chamber for receiving a sample containing the analyte molecules and at least one collecting chamber for receiving the purified analyte molecules. According to the invention, the microfluidic component has at least one integrated receptor device for detecting the presence and/or the concentration of the purified analyte molecules. In accordance with one advantageous development of the present invention, the separation section is formed by an electrophoretic gel filtration section.
摘要:
The invention relates to a method for the structured coating of substrates from liquid phase and to an apparatus for the structured coating. Furthermore, the invention comprises the use of the method.
摘要:
The invention relates to a thermo-pneumatic actuator (1) having a cavity (2) defined by walls and being hermetically sealed, which is inflated with a working medium that alters the gas pressure thereof when a temperature change occurs. A wall region of the cavity (2) is constructed as a ductile membrane (3), which can be deflected in at least two working positions located on both sides of a neutral position, in which the membrane (3) is curved in opposite directions to one another. In order to alter the gas pressure in the cavity (2), and to adjust the membrane (3) from one working position to the other working position, a tempering device (4) is heat-conductively connected to the working medium. In the neutral position, the membrane (3) is compressively loaded such that respectively, it maintains its position in both working positions if no outside force impacts the membrane (3).
摘要:
The invention relates to a method and a device for determining the general fitness of a test subject. The qualitative time trace of the heart rate under a constant bodily stress of a test subject is prescribed as a mathematical function having at least one parameter dependant on a test subject. The heart rate of the test subject is measured under constant bodily stress during a time interval. The parameter or parameters of the mathematical function are determined from the measured values, and the maximum heart rate and/or the initial heart rate and/or the rise characteristic of the heart rate is determined from the function and the measured values by numerical methods. The device has an appliance for measuring the heart rate of the test subject, having a memory appliance in order to store a mathematical function for the time trace of the heart rate under bodily stress, and having a computing appliance numerically determining the maximum heart rate and/or the initial heart rate without bodily stress and/or the rise characteristic of the heart rate from the time trace of the heart rate under stress.
摘要:
Bereitgestellt wird ein Verfahren zum Herstellen einer Elektrodenstruktur für eine neuronale Schnittstelle, wobei ein erstes Elektrodenmodul und wenigstens ein zweites Elektrodenmodul, vorzugsweise getrennt voneinander, hergestellt werden und wobei das zweite Elektrodenmodul auf dem ersten Elektrodenmodul angeordnet wird. Die Anordnung des zweiten Elektrodenmoduls auf dem ersten Elektrodenmodul erfolgt vorzugsweise derart, dass die Elektrodenkontaktflächen des unteren, d.h. des ersten Elektrodenmoduls nicht von Elektrodenkontaktflächen und/oder Leiterbahnen des oberen, d.h. des zweiten Elektrodenmoduls abgedeckt werden. Des Weiteren wird durch die Erfindung eine Elektrodenstruktur für neuronale Schnittstellen bereitgestellt, welche mit dem erfindungsgemäßen Verfahren herstellbar ist.
摘要:
The invention relates to a more efficient solar element and a method for increasing the efficiency of a solar cell. The solar cell according to the invention is composed of a luminescent element, an up-converter, and at least one selectively reflecting structure.