You can find out the truth when you come back china one year later. Although it's difficult to find a job at this moment, if you choose to continue staying overseas is even worse.
China is a place full of oppotunities for us chinese after all.
It is said that the Chinese government will invest at least 6 billion RMB on Microelectronics in the following years. So I think the work prospect will be fine. Of course, everything is dependent on your own capability.