摘要:
One aspect of the invention relates to a power semiconductor device in lead frame technology and a method for producing the same. The power semiconductor device has a vertical current path through a power semiconductor chip. The power semiconductor chip has at least one large-area electrode on its top side and a large-area electrode on its rear side. The rear side electrode is surface-mounted on a lead frame chip island of a lead frame and the top side electrode is electrically connected to an internal lead of the lead frame via a connecting element. The connecting element has an electrically conductive film on a surface facing the top side electrode, the electrically conductive film extending from the top side electrode to the internal lead.
摘要:
A semiconductor device with a thinned semiconductor chip and a method for producing the latter is disclosed. In one embodiment, the thinned semiconductor chip has a top side with contact areas and a rear side with a rear side electrode. In this case, the rear side electrode is cohesively connected to a chip pad of a circuit carrier via an electrically conductive layer. In another embodiment, the thinned semiconductor chips of this semiconductor device according to the invention have low-microdefect edge side regions with semiconductor element structures and edge sides patterned by etching technology.
摘要:
A fuel injection device for an internal combustion engine, having two valve elements each having a hydraulic control surface acting in the closing direction and associated with a hydraulic control chamber. A control valve influences the pressure in the control chamber, and loading devices act on the valve elements in the opening direction. The valve elements react at different hydraulic opening pressures prevailing in the control chamber. The control valve is able to set at least three different pressure levels in the control chamber: all of the valve elements are closed at a comparatively high pressure level; one valve element is open at a medium pressure level; and all of the valve elements are open at a comparatively low pressure level.
摘要:
A self-adhesive security label for a data carrier, such as a security document or document of value, with a substrate (40), to the front of which security features (12-18,42) are applied and the back of which is provided with a cold adhesive foil (34). The security label contains an integrated circuit (30) disposed in a recess (36) of the adhesive foil (34) for storing security data and an antenna (32) disposed intermediate between substrate (40) and adhesive foil (34) and connected with the integrated circuit (30) for a contactless communication with the integrated circuit (30).
摘要:
The invention relates to a method for forming coatings on an inorganic or organic substrate and to substrates coated in accordance with the method. In the method: a) a low-temperature plasma, a corona discharge, high-energy radiation and/or a flame treatment is caused to act on the inorganic or organic substrate, b) 1.) at least one activatable initiator or 2.) at least one activatable initiator and at least one ethylenically unsaturated compound is/are applied in the form of a melt, solution, suspension or emulsion to the inorganic or organic substrate, there being incorporated in the activatable initiator and/or the ethylenically unsaturated compound at least one group that interacts with a subsequently applied coating or reacts with groups contained therein, with the effect of promoting adhesion, and c) the coated substrate is heated and/or is irradiated with electromagnetic waves and an adhesion promoter layer is formed, d) the substrate so pretreated is provided with the further coating which contains reactive groups that react with those of the adhesion promoter layer and/or interact with the adhesion promoter layer.
摘要:
An electronic component and a method for fabricating it is disclosed, where the component comprises a semiconductor chips which has flip-chip contacts. These contacts are fixed on a rewiring substrate, the interspace between the rewiring substrate and the semiconductor chip being filled with a thermoplastic. The glass transition temperature of the thermoplastic is above the highest operating test temperature of the component and below the melting temperature of the solder material for external contacts.
摘要:
A process for forming UV absorber layers on an inorganic or organic substrate is described. That process comprises a) allowing a low-temperature plasma, a corona discharge or high-energy radiation to act on the inorganic or organic substrate, b) applying to the treated inorganic or organic substrate at least one free-radical-forming initiator and at least one UV absorber containing at least one ethylenically unsaturated group, and, optionally in the form of melts, solutions, suspensions or emulsions, at least one synergist and/or at least one ethylenically unsaturated compound, c) heating the coated substrate and/or irradiating it with electromagnetic waves. The invention relates also to a substrate provided with a UV absorber layer in accordance with that process. That process substantially eliminates vacuum conditions and excessive thermal stress or energy stress and also destruction of the UV absorber. Clear, transparent UV absorber layers that exhibit good adhesion are formed, the properties of which, such as, for example, the optical density, are advantageously controllable.
摘要:
A biosensor that has a smart card configuration includes a semiconductor chip including a bioactive structure and contact areas disposed on a first side of the semiconductor chip, and a rewiring substrate including contact pads, external contact areas and rewiring lines that electrically connect the contact pads to the external contact areas. The rewiring substrate covers a portion of the first side of the semiconductor chip without covering the bioactive structure, such that the rewiring substrate overlaps the contact areas of the semiconductor chip and the contact pads and the contact areas are aligned with and electrically connect to each other. In addition, a measuring apparatus is configured to receive the biosensor and conduct measurements of a fluid medium that is delivered into the measuring apparatus.
摘要:
The invention relates to a process and to the corresponding apparatus for the production of strongly adherent coatings on an inorganic or organic substrate, wherein in a first step: a) a low-temperature plasma, a corona discharge or a flame is caused to act on the inorganic or organic substrate, in a second step: b) one or more photoinitiators or mixtures of photoinitiators with monomers, containing at least one ethylenically unsaturated group, or solutions, suspensions or emulsions of the afore-mentioned substances, are applied at normal pressure to the inorganic or organic substrate, in a third step: c) using suitable methods those afore-mentioned substances are dried and/or irradiated with electromagnetic waves and, optionally, in a fourth step d) the substrate so pretreated is provided with a coating and the coating is cured or dried.
摘要:
A process for the manufacture of a flowable granulate by means of spray granulation, which comprises using as starting material a formulation in liquid form comprising (a) a substance or a mixture of substances that is in the form of a waxy or cohesive solid at room temperature, and (b) up to 20% by weight, based on the amount of component (a), of a substance having a specific surface >3 m2/g that is insoluble in component (a), yields granulates that have a narrow particle size distribution and a low dust content and that are stable to storage.