On August 17, 2021, Hangzhou Semiconductor Wafer Co., Ltd. (hereinafter referred to as CCMC)'s first 12-inch 450 kg feeding ingots came out! The ingot has a net weight of 437.7kg, a body length of 2900mm, a body length of 2400mm, and a yield rate of 87.6%, which is an increase of 4.6 percentage points compared to the previous yield rate of 300 kg. On September 5, the second 12-inch 450 kg feeding ingot was successfully drawn again, and the parameters were almost the same as the first ingot. It can be said that the company has the technology and process level for standardized mass production of 12-inch 450 kg feeding ingot.
