TY - Frontiers of Data and Computing A1 - YU Li,SHENG Yingjie,XU Jinglong,SUI Xiufeng T1 - A Study on the Bottlenecks Technologies of Integrated Circuit Industry in China from the Patent Analysis Perspective Y1 - 2021-10-20 JF - Frontiers of Data and Domputing JO - Frontiers of Data and Computing SP - 40 EP - 54 VL - 3 IS - 5 UR - http://www.jfdc.cnic.cn N1 - 10.11871/jfdc.issn.2096-742X.2021.05.003 ER -