新型晶体管刘正生（杨州大学师范学院）超导晶体管日本富士通公司最近研制出一种超导晶体管。这种晶体管的发射极和集电极使用钇钡铜氧化物高温超导材料。这两个电极各长４０毫米，宽２０微米，电极间距为２微米。它在低温—２６９℃的条件下，电压放大倍数和电流放大倍数... New transistor Liu Zhengsheng (Yangzhou University Teachers College) superconducting transistor Japan Fujitsu recently developed a superconducting transistor. Yttrium barium copper oxide high temperature superconducting materials are used for the emitter and collector of this transistor. The two electrodes each 40 mm long, 20 microns wide and the electrode spacing is 2 microns. It is at a low temperature of -269 ℃ under the conditions of voltage magnification and current magnification ...