1980年,日本电子工业情况良好,半导体集成电路、晶体管、二极管的生产迅速发展。但由于锗与硅不同,不能作为集成电路的基片,分立的晶体管也由于特性问题设计困难,不容易降低成本,加上原材料价格昂贵,故其在电子工业的用量越来越衰退。80年,锗的晶体管只占全部生产量的1.4％, In 1980, the Japanese electronics industry was in good condition and the production of semiconductor integrated circuits, transistors and diodes was rapidly growing. However, since germanium is different from silicon, it can not be used as a substrate for integrated circuits. Since discrete transistors are also difficult to design due to their characteristic problems and their costs are not easily reduced, and their raw materials are expensive, their usage in the electronics industry is declining. 80 years, germanium transistors accounted for only 1.4% of the total production,