Question

What is the price per kilogram (or carat price) of thin film diamond if PECVD capital cost is $500 000 and running costs are $100 000 a year? Take 10 nm/min for the deposition rate on 150mm wafer size in a single wafer system

Answer 1

given

cost is 5,00,000

in a year may be 52 weeks are there so the system operated hours/year is 5616

the 150 mm wafer size is utilization is 60 %

10 nm/min for the deposition rate - so deposition rate/min = 10 nm

= 10 x 10^-9 m

for one year total deposition is 33696 nm

= 33696 x 10^-9 m

sample 150 mm wafers is 225 and the running cost/year is 1,00,000

then the price per kilogram (or carat price) of thin film diamond is 445.