Welp, Morris Chang had said the cost of making chips in the US will be higher than making in Taiwan. Something like 50% more, IIRC.
Has anyone do the math on this, cuz tsmc will still make a lot of money, just less than they would if they had the choice to pen the fab in Taiwan or maybe expand Nanjing.
1. most of the cost of a greenfield fab is from the fab and equipments, not from salaries or opex.
2. Revenue: $3.6B annually
- 20K wpm, >$15,000/5nm wfr
3. Cost of Revenue:
A. AZ Equipment depreciation: $2.4B for first five years (original $12B CAPEx)
B. Salaries+OPEX: ~$0.5B
- assuming avg $150K/TWN employee in 2021 (I got this number by estimating the 2021 depreciation by taking into account of CAPEX spent from 2017-2021. Subtract this from 2021 cost of revenue. The difference is assumed to be salary+opec. Divided by 55,000 employees)
- let’s assume US salary and OpEx is 100% higher than TWN —> $300K/US employee
- announced 1,600 employees planned for AZ
for year 1-5:
Revenue: $3.6B/yr
Profit=3.6-2.9=$0.7/yr
OpMargin: ~19%
year 6 and out:
Revenue: $3.6B/yr
Profit=$3.1B/yr
OpMargin: ~86%
this is just a conservative estimate with assumption US salary+OPEX doubles that if Taiwan. From this, you can see Morris is just complains about making less money than tsmc could. He hinted AZ fab will be profitable, but did not clarify it will make so much. I think he is just being a good businessman laying the foundation so they can:
1. justify asking his customers to pay even more for wafers or to justify not discounting wafer price,
2. ask their supplier for bigger discount.
3. Ask US government for even more subsidy or tax break
4. Justify not having to invest any further than existing commitment.
somebody feel free to check my math, but it sure look like even if AZ costs more to operate tsmc will still make lots of money.
tsmc’s overall gross margin is 50%, but a fully depreciated fab will have much higher margin. Even with high salary, cost in AZ, this is just a small portion of the revenue.
Opening a high wafer price, high margin 5nm fab in the US would still make financial sense. But investing in say a 28nm fab wouldn’t make sense (only ~$720M per annum so this type of fab will barely break even in the US).