Temic Telefunken Microelectronic Gmbh

Telefunken Electronic Gmbh

Licentia Patent-Verwaltungs Gmbh

Jorg Angerstein

Werner Schairer

Siegfried Giebler

Thomas Mistele

Elmar Wagner

Jurgen Riedel

Dieter Silber

Dieter Mutz

Ulrich Wicke

Helmut Scheidle

Stefanos Dermitzakis

In a transceiver component for optical data transmission a transmitter, a receiver and at least one integrated circuit are arranged in a single housing. The housing has a number of terminals. One terminal of the transceiver component is provided solely for feeding the driver current to the transmitter. Consequently, it is possible to connect the transmitter with its high current consumption directly with the non-stabilized power supply such as, for instance, the mains adapter, the rechargeable battery pack or the batteries. The stabilized power supply can then be dimensioned correspondingly smaller and be produced at lower cost.

Transceiver component for data transmission

The invention relates to an opto-electronic component having a narrow aperture angle. The conventional design of components transmitting radiation or reacting to radiation and concentrating that radiation with the aid of lenses results, on account of the increasing distance between the lens and the semiconductor chip, in increasing component dimensions in the radiating or detecting direction with an increasingly narrow aperture angle. In accordance with the invention, a parabolic or approximately parabolic reflector is provided that is connected to a support strip supporting the semiconductor chip such that the latter is as close as possible to the focal point of the parabolic or approximately parabolic surface of the reflector. The reflector is preferably connected to the support strip by engaging elements and surrounded by a housing.

Method of manufacturing a opto-electronic component with narrow aperture

Opto-electronic component with narrow aperture angle

A semiconductor assembly with a metal frame configuration is described, having a semiconductor component (HL) on a carrier section (T) of a ground strip section (M). The ground strip segment has an extension section (V) with which it is extended beyond said carrier section and is both folded over in relation to said carrier section and of sufficient length that it covers said semiconductor component in order to shield it electromagnetically. In this assembly, the ground strip section has a multiple function. It is used not only for carrying and contacting of electrical components, but also acts at the same time as electromagnetic shielding for a semiconductor component, for example for the radiation detector of a remote control reception module. This shielding is dependably connected to ground since it is formed as one piece with the ground line, it is simple to manufacture since no special connecting operations are necessary, and it is space-saving since no space is required for stable connection points between the shielding and other parts of the assembly.

Semiconductor assembly, in particular a remote control reception module

A luminescent semiconductor component has a casing member of a light transmissive plastics material containing particles which simultaneously determine the light scattering and filtering properties of the light which is emitted by the semiconductor component and passes out of the casing member. The casing member may be of epoxy resin, and the particles may be of colored ground filter glass.

Luminescent semiconductor component

The invention relates to an optical system comprising a semiconductor laser and an optical instrument collimating the laser light. In accordance with the invention, the semiconductor laser and the optical instrument are accommodated in separate holders which are adjusted relative to one another in such a way that a criterion relating to the laser light is optimally fulfilled. After completion of the adjustment, the two holders, both forming the external housing of the entire system, are joined to one another.

Optical system for providing a collimated light beam

A circuit arrangement for actuating semiconductor lasers with the transmitted optical power being controlled with the aid of a photodiode optically coupled to the laser radiation, whose amplified photoelectric current controls the current of the laser in such a way that its radiation capacity remains constant, is to be improved, in particular, such that the circuitry expenditure is low, the band width large and the operating point of the laser easy to set, and, furthermore, such that a digital or HF signal for modulation of the laser radiation can be coupled without difficulty.

Circuit arrangement for actuating semiconductor lasers

The invention relates to a controllable semiconductor circuit element consisting of a vertical thyristor comprised of four zones of alternating conductivity types and arranged in a semiconductor disk, with the two load current connections located on the top surface and on the bottom surface of the semiconductor disk respectively. According to the invention, the semiconductor disk comprises an additional controllable circuit element with a lateral zone structure on the top surface of the semiconductor disk. Zones of this additional circuit element are linked with zones of the vertical thyristor in such a way as to enable the vertical thyristor to be indirectly ignited by ignition of the lateral circuit element.

Growing community of inventors

Flein, Germany

Jorg Angerstein