Chinese state media, citing information from authorities, said that SMIC (Semiconductor Manufacturing International Co.) has begun mass production on the 14nm process. stated. More importantly, the report claims that the company is on the road to 7nm and 5nm technology.
SMIC has been talking about N+1 production technology since the beginning of 2020. This nomenclature is internally recognized as the 7nm class and is described as a low-cost alternative to TSMC’s N7 technology using DUV (deep ultraviolet). N+1 aims to reduce power consumption by 57%, increase performance by 20%, and reduce logical area density by up to 63% compared to a similar chip manufactured using SMIC’s 14nm technology.
“The production of 7nm chips in China is also progressing faster than expected,” said Xiang Ligang, a technology analyst. If you remember, the USA banned the sale of equipment used in advanced chip production to China. If the news is true, it seems that Chinese manufacturers have somehow managed to overcome these difficulties.
SMIC also briefly mentioned N+2 technology in the past. This will be another evolutionary step compared to 14nm. However, N+2 is referred to as a ‘5nm class’ technology as it is one step ahead of N+1 as we understand it.