Where did Yang Qinghua go in Han Dynasty?

Kaili, Guizhou. Yang Qinghua, 1976 was born in Kaili, Guizhou. Through his own efforts, he was admitted to Tsinghua University and founded Hantianxia Electronics Co., Ltd., but after the age of 50, he felt that he missed his hometown very much, so he returned to Kaili College in Guizhou in 2020 as the dean of the School of Microelectronics and Artificial Intelligence.