Hi guys, Welcome to the Advanced Video Search Engine, and you are watching [핫클립] PVD 공정 - 반도체의 품질을 결정하는 공정 / YTN 사이언스. That video is uploaded by YTN 사이언스 at 2023-03-06T01:30:03-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [Ii30533-erk]