Polycrystal silicon ingot and preparation method thereof, polysilicon chip and crucible used for polycrystalline silicon ingot casting
Polycrystal silicon ingot and preparation method thereof, polysilicon chip and crucible used for polycrystalline silicon ingot casting
- CN 102,776,561 B
- Filed: 04/01/2012
- Issued: 12/15/2017
- Est. Priority Date: 04/01/2012
- Status: Expired due to Fees