GB1082421A - Apparatus for mounting a semiconductor component in a support - Google Patents

Abstract

1,082,421. Semi-conductor devices. SIEMENS SCHUCKERTWERKE A.G. March 24, 1966 [April 3, 1965], No. 13155/66. Heading H1K. [Also in Division G1] Apparatus for inserting a semi-conductor component 3, Fig. 1, into a recess 2a in a support member 2, is associated with testing circuitry for checking the electrical characteristics of the inserted component. The apparatus consists of an open-ended plunger 4 which is used to press the component into the recess, the open end containing a spring-loaded contact 9 for completing the connection to the testing circuit 10. The test circuit of Fig. 2 provides a polarity test in which the inserted component, a rectifier, is energized by an A.C. source 25 and its output applied to a relay-plus-rectifier combination 18, 19, 23, 24 which moves a contact 20 on to one or other of two fixed contacts 21, 22 in accordance with the polarity of the inserted rectifier. This polarity test also controls the operation of further relays R 1 , R 2 which control the polarity of the applied potential in a current-voltage characteristic test. The current-voltage characteristic test may take the form of checking the voltage which appears across the rectifier 33, Fig. 3, when connected in series with a resistor 34 and a D.C. supply 40, the polarity of the supply being such as to produce reverse bias of the rectifier. This test may be performed both before and after pressing the rectifier into its recess: the pre-pressing voltage may in this case be stored by a capacitor 36 and the post-test voltage, if lower, will cause a partial discharge of the capacitor, the discharging current being metered at 38 and, if it exceeds the permitted value, operating an alarm 39.