Re:TSMC’s Wafer Prices Revealed: 300mm Wafer at 5nm Is Nearl...
by 4cao on Thursday September 17, 2020 @08:15PM
(#24511535)
> In the table on the page, why does "Foundry sale price per chip" decrease, while "Foundry sale price per wafer" increase
I had the same question. Seems it's based on an earlier table in the same PDF (see my top-level comment for source link), namely Table 7 on page 41, which lists transistor density to calculate average chips per wafer.
And then, for the table referenced in the article (which is Table 9 in the PDF), it says: "In line 8, we convert the per wafer value to a per chip value by dividing by the number of chips per wafer of a given year’s node listed in Table 7."
I had the same question. Seems it's based on an earlier table in the same PDF (see my top-level comment for source link), namely Table 7 on page 41, which lists transistor density to calculate average chips per wafer.
And then, for the table referenced in the article (which is Table 9 in the PDF), it says: "In line 8, we convert the per wafer value to a per chip value by dividing by the number of chips per wafer of a given year’s node listed in Table 7."