半导体器件的发明和应用深刻地改变了近50年的人类历史发展进程。进入21世纪,半导体器件无处不在,已成为构筑信息化社会的基石。同时,电力半导体在提高电力转换效率方面的作用使之成为构筑低碳社会的基石。半导体技术的节能效果是显而易见的。世界首台采用电子管的电子计算机ENIAC重达30 The invention and application of semiconductor devices has profoundly changed the course of human history in the past 50 years. Enter the 21st century, semiconductor devices everywhere, has become the cornerstone of building an information society. At the same time, the role of power semiconductors in improving the efficiency of power conversion has made it a cornerstone of a low-carbon society. The energy-saving effect of semiconductor technology is obvious. ENIAC, the world’s first tube electronic computer, weighed 30