| 摘要 |
883,207. Method of fusing electrodes to semiconductive materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 29, 1958 [Aug. 1, 1957], No.24401/58. Class 37. In a method of alloying a pellet of material with a semi-conductive member, the pellet is held in the end of a punch which is held by means of a jig so that the electrode material is disposed against the semi-conductive member. Fig. 10 shows semi-conductive material 4 such as germanium disposed in the bore of a plate 1 and two punches 6 and 7 containing pellets 9, e.g. of indium held in position by a jig 5 and a spring 8. Gold wires 50 and 51 may also be provided and fused to the indium at the same time as the latter is fused to the germanium or at an earlier stage. The pellets are formed by pressing the punches into a plate 12 of indium &c. disposed on a substratum 11 as shown in Fig. 2, or where the punch is of ceramic material and has a blunt end; the plate is replaced by a spherical body, Fig. 3. Modifications are described where two or more electrodes are produced close to another or the same side of the semi-conductive layer and of producing concentric electrodes. The punches may consist of chrome iron alloy or ceramic material and where more than one electrode is produced different electrode materials may be introduced into the different punches. |
