Information of TSMC’s plans come from Kevin Zhang, senior VP of enterprise improvement at TSMC. In keeping with Anandtech, TSMC has no plans to construct any extra fab capability for a few of its older, mature nodes. All of the capability that exists as we speak for 40nm and past is all that may ever exist. “We’re not at the moment [expanding capacity for] the 40 nm node” he mentioned. “You construct a fab, fab is not going to come on-line [until] two yr or three years from now. So, you really want to consider the place the long run product goes, not the place the product is as we speak.” Anandtech says TSMC at the moment will get about 25 p.c of its income from mature processes like 40nm and bigger. Nonetheless, these nodes are lengthy since paid for, and the wafers are low cost as a consequence of their age. This reduces profit-per-wafer for TSMC, which is a possible motivator for it to nudge its clients right into a extra fashionable node.
From TSMC’s perspective although, whereas buyer pays extra for a extra superior node, that transfer comes with apparent advantages. In keeping with Zhang, some clients would possibly query such a transfer when the 40nm chip works simply advantageous. “I believe the client going to get a profit, financial profit, scaling profit, you have got a greater energy consumption,” he mentioned. Summarizing it, he said, “you go to a subsequent node, you get a greater efficiency and higher energy and general you get a system degree profit.” The purchasers will even get much more dies per wafer as nicely.
TSMC beforehand introduced it will likely be rising its capability for mature and speciality nodes 50 p.c within the coming years. This effort will see the corporate specializing in 28nm nodes particularly. It’s introduced plans to construct a fab in Kumamoto, Japan that may give attention to N12, N16, N22, and N28 nodes. It’s additionally manufacturing three extra fabs to help on this course of. Two of these services can be in Taiwan, with the third in China.
The vast majority of chips made on older nodes go into sensible home equipment, telephones, IoT, and particularly vehicles. It’s estimated that in a couple of years vehicles will function over 1,500 particular person chips. Presently most vehicles solely use a number of hundred chips. This was notably obvious because the pandemic-based chip scarcity triggered turmoil within the auto business.