Smic 's joint ventures , a testing and assembly facility in Chengdu with UTAC and the manufacturing of on-chip color filters and micro lenses in Shanghai with toppan , are also in production .
中芯国际和联合科技在成都合资成立的封装测试厂以及和凸版印刷在上海成立的合资企业，专注于生产制造芯载滤光片和微镜头均已投产。
toppan