摘要:
The present invention relates to the addition of aluminum salts of fatty acids with 12 to 18 carbon atoms, particularly aluminum stearate, to dental impression materials on the basis of addition and/or condensation crosslinking organosilicones to improve their structural viscosity behavior and thus to ease their handling for the dentist.
摘要:
The present invention relates to the addition of aluminum salts of fatty acids with 12 to 18 carbon atoms, particularly aluminum stearate, to dental impression materials on the basis of addition and/or condensation crosslinking organosilicones to improve their structural viscosity behavior and thus to ease their handling for the dentist.
摘要:
A radiation detector is disclosed with a detector arrangement, which has a plurality of detector elements, by means of which a detector signal is obtained during operation of the radiation detector, and with a control device, wherein the detector elements each have a spectral sensitivity distribution, and are suited for generating signals. At least one detector element includes a compound semiconductor material, and this detector element is designed for detecting radiation in the visible spectral region. The radiation detector is designed such that the sensitivity distributions of the detector elements are used to form different spectral sensitivity channels of the radiation detector. A channel signal assigned to the respective sensitivity channel can be generated in these sensitivity channels using the detector elements, and the control device is designed such that the contributions of different channel signals to the detector signal of the radiation detector are differently controlled.
摘要:
An assembly and adhesive layer for semiconductor components is arranged between a silicon support (submount) and an electronic functional element for the formation of an electrically-conducting connection between the silicon support and the functional element. The assembly and adhesive layer are arranged on the support. The assembly and adhesive layer are made from a Ti/TiN layer (6), applied to an aluminum contact surface (5) of the silicon support (1), by means of a deposition method. The aluminum contact surface (5) is located on a landing pad (2) on the silicon support (1).
摘要:
An integrated semiconductor circuit has a component formed of a semiconductor substrate with an active pn junction formed between a first semiconductor region of a first conductivity type and a second semiconductor region of a second conductivity type. The semiconductor circuit also has a protective circuit that is associated with the component and serves to dissipate overvoltages and/or electrostatic charges. The protective circuit has a protective pn junction formed in a semiconductor mount with a first semiconductor mount region of the first conductivity type and a second semiconductor mount region of the second conductivity type. The second semiconductor mount region of the second conductivity type is electrically coupled to the first semiconductor region formed in the semiconductor substrate of the first conductivity type.
摘要:
A process for determining the concentration of washing-active substances in a wash liquor involving the steps of:(a) preparing a wash liquor containing washing-active substances;(b) adding a reducing sugar to the wash liquor in an amount proportional to the washing-active substances present in the wash liquor; and(c) measuring the content of reducing sugar present in the wash liquor.
摘要:
An optoelectronic coupling element and method for manufacturing the coupling element. The coupling element includes a light wave guide, a microlens, a first carrier chip and a light emitting and/or light detecting semiconductor element. The microlens is preferably spherical in shape and is adapted for optically coupling the light wave guide and the semiconductor element. The semiconductor element can be part of the first carrier chip or, according to another embodiment, can be part of a second carrier chip. The purpose of this coupling element is to facilitate the precise mounting of the microlens in a position between the light wave guide and the semiconductor element and also facilitate the adjustment of the microlens to optimally perform its light coupling function. The method for manufacturing the coupling element provides for the formation of a receptacle having trapezoidal shape sides in the carrier chip. The microlens is mounted within the receptacle with a connecting medium such as glass. The size of the receptacle is determined by the size of the microlens and the point of contact between the microlens and carrier. Applications of the optoelectronic coupling element according to the invention are, in particular, in LED transmitter structural elements, receiver structural elements and laser modules. This method of production substantially avoids impairment of the carrier chip due to effects such as mechanical deformation. Additionally, this type of coupling element can be mass-produced cost-effectively in spite of the miniature size of these components.
摘要:
A sensor arrangement has a layer sequence that includes a holding substrate, an auxiliary layer, a detection layer and an insulating layer. The holding substrate holds detection elements. The auxiliary layer extends continuously over the detection elements or contains separate regions which are associated with a detection element. The detection layer has separate detection regions which are contained in a detection element and contain at least one semiconductor component which is sensitive to radiation. The insulating layer has separate insulating regions for electrically insulating the detection regions from a point of contact having electrically conductive connections and pads fitted on the free side. The pads are electrically connected to connecting points which are routed to the semiconductor components. This sensor arrangement can be used for detecting X-ray radiation and can be manufactured with particular ease.
摘要:
In a projection arrangement with a projector and a deflecting mirror in which the image projection, proceeding from a projection direction along a principal projection axis impinges on the deflecting mirror which is supported so as to be movable in two spatial direction and whose mirror surface deflects a projected light bundle at an elevation angle and at an azimuth angle onto a projection surface standing on the ground the image projection is effected from the direction of a zenith at an angle &bgr; which is less than 60° in relation to a vertical line from the zenith and the deflecting mirror is arranged at the ground wherein the projected light bundle can be deflected toward the projection surface so that an image can be generated on the projection surface and moved on the latter.
摘要:
An optical coupling device and method for manufacturing the same is disclosed wherein a light-emitting semiconductor transmitter chip is secured to a light-detecting semiconductor receiver chip via a transparent insulating layer, a structured spacer layer and a transparent connecting layer. The resultant optocoupler has a high coupling factor and may be reliably manufactured into SMT compatible packages.