SU388377A1 - DEVICE FOR DETERMINING THE ORIENTATION OF SEMICONDUCTOR ELEMENTS - Google Patents

Description

one

The invention relates to the process equipment for the production of radio components, namely, automatic control systems and the production of modular semiconductor devices.

Devices are known for determining the orientation of semiconductor elements comprising a pulse generator connected in series, a coamer and a switching unit, a contact node with semiconductor elements disposed therein and a control unit.

The purpose of the invention is to simplify the device and increase reliability in operation.

This is achieved by the fact that in the proposed device the command driver is made in the form of serially connected counter of impulses and decoder, each of the outputs of which is connected to a contact node and a pulse comparison circuit. The outputs of the latter are connected to the control unit.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 shows the sequence for finding the desired position of a semiconductor element, such as a diode array.

The device consists of a generator I, an imulis counter 2, a decoder 3, a contact node and a test element 4 of the circuits 5 of coincidence.

The generator / is a symmetric multivibrator. The pulse counter 2 consists of three triggers whose outputs are connected to the input of the decoder 3. The required number of pulses is output from the decoder, corresponding to the number of polled contact pairs of the orientable semiconductor element 4, which pass through one of the matching circuit 5 directly and through the tested rule. .

When the pulses that pass through the conductive channel of the tested semiconductor element coincide to the corresponding And circuit from the decoder, a K01 command is issued on the position of the semiconductor element. To explain the operation of the device in FIG. 2 - the sequence of finding the desired position of the diode array as an example is considered.

After the measuring head has been contacted with all the working contacts, a time-separated impulse voltage is applied to the corresponding electrodes of the tested element in the position indicated in FIG. 2 polarity and sequence. By the number of pulses passing through the checked circuit, the required rotation angle of the semiconductor element is judged. In this case, to find the required angle of rotation, it is necessary to apply Two pulses from the decoder, which corresponds to 90 ° of rotation of the semiconductor element.

Subject invention

A device for determining the orientation of semiconductor elements, containing a series-connected generator of Ipulses, a command generator and a switching unit, a contact node with a position in it

A control unit, characterized in that, in order to simplify the device and increase the reliability of its operation, the command driver is made in the form of serially connected counter I1 pulses and a decoder, each of whose outputs is connected to a contact node and to a pulse comparison circuit whose outputs are connected with control unit.

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