| 摘要 |
998,637. Semi-conductor devices. PHILCO CORPORATION. Nov. 11, 1963 [Nov. 9, 1962 (2)], No. 44369/63. Heading H1K. A semi-conductor or other electronic device is protected by an environmental material containing boron nitride. Fig. 1 shows a transistor in a sealed can 10 containing boron nitride powder 11 which acts as a dessicant and a heat conductor to cool the device. The boron nitride may be provided as a dispersion in silicone oil in the container. Fig. 3 shows a modification in which a thermoset epoxy resin or polystyrene web 14 containing boron nitride is applied to the junction area of a transistor to provide mechanical reinforcement. |
