US imposes curbs on exports to China's top chipmaker SMICSMIC said it had not received any official notice of the restrictions and said it has no ties with the Chinese military.Computer keyboard [illustrative](photo credit: ING IMAGE)
![Computer keyboard [illustrative]](https://images.jpost.com/image/upload/f_auto,fl_lossy/q_auto/c_fill,g_faces:center,h_720,w_1280/462910 "Computer keyboard [illustrative]")