As far as integrated circuit specialty is concerned, Southeast University has a slightly higher level and has a national integrated circuit engineering center. Zhejiang University has a very large research institute, which is quite powerful, with a little emphasis on strong electricity. Zhejiang University likes people who want to study for a doctorate. Huazhong University of Science and Technology is good at optics. Because a fake chip happened in Jiaotong University a few years ago, the overall impact is still quite great.

If you are really in Shanghai, it is easier to find an internship or something, but there is a problem. The tutor won't let you go out for an internship, and some of them go out on their backs, which exists in all colleges and universities. If you want to be in Shanghai, I recommend Fudan, because Fudan's microelectronics are famous all over the country, which is more powerful than the four big ones you mentioned. It is the State Key Laboratory of Proprietary Integrated Circuits.