| 摘要 |
1,179,606. Semi-conductor transducers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 June, 1967 [14 June, 1966], No. 26767/671 Heading H1K. [Also in Division H4] A stereo pick-up, see Divisions H4, Heading H4J, comprises two pressure sensitive planar transistors, one of which is shown in section in Fig. 4B, pressure being applied to the N-type emitter zone 3 from a diamond needle D via a silica insulating layer 4. Connections to the base zone 2 and emitter zone 3 are made through windows in the insulating layer 4 by conductors 5 and 6, while the collector zone I is secured to a metal support 7 which serves as the collector electrode. |
