China-born US citizen charged over alleged theft of American trade secrets
- Haoyang Yu, wife Yanzhi Chen and their company face raft of accusations over technology related to semiconductor firm Analog Devices
- Indictment supersedes charges in June 2019 against Yu and Tricon MMIC for allegedly stealing, copying, downloading, and possessing trade secrets

A naturalised US citizen from China, his wife and their company, have been charged with a total of 24 counts related to the alleged theft of trade secrets valued at millions of US dollars.
The charges against Haoyang Yu, 41, and Tricon MMIC, a company he and his wife established, include possession and attempted possession of a trade secret, transporting stolen goods, visa fraud and smuggling.
In addition, Yu, who was born in the northeastern Chinese city of Harbin, and his wife Yanzhi Chen, 22, were charged with three counts of wire fraud and aiding and abetting wire fraud, according to the US Attorney’s Office in Massachusetts.
The charges relate to proprietary information from Analog Devices (ADI), a Nasdaq-listed semiconductor company that Yu worked for.
According to the statement, Yu’s job at ADI gave him access to data and information relating to ADI’s present and future product designs, schematics, manufacturing files and testing procedures.
The indictment alleges that Yu sold 20 ADI designs as his own.