| 摘要 |
920,001. Semi-conductor devices. TEXAS INSTRUMENTS Inc. July 7, 1959 [July 10, 1958], No. 23321/59. Class 37. A semi-conductor device comprises a header member 22 to which is attached a spacer 38 of insulating material which serves to hold the device spaced from a supporting surface such as a printed circuit board 10 and thus reduces the possibility of solder 31 bridging conductive parts of the device. The header 22 comprises a dishshaped metal shell 24 filled with insulating material 36 and having holes 27, 28 through which pass leads 30, 32 to connect a semi-conductor unit 34, mounted on the metallic side of the header, to eyelets 12, 14 in the circuit board 10. The spacer 38, which is made of frangible material, e.g. glass, ceramic, is partially embedded in the insulating material 36 and is formed with a nick or score mark 40 close to its point of attachment therewith, so that the spacer may be detached if not required. The semi-conductor unit 24 is enclosed by a metal housing 18 attached to the header 22. Alternatively, the spacer may be formed integrally with insulating material 36; or the header may comprise a ring of metal bonded to a glass or ceramic disc. |
