July 25, 2012, anysilicon
It happened to all of us. You come to your office one morning and find a note from your manager “what will be the ASIC’s unit cost?”
Although an ASIC unit cost has a direct impact on revenues, it is typically only visited twice: before the design starts and when design ends. It’s also interesting to note that ASIC cost tends to escalate during development phase. Which probably means, you need to run your calculations more often.
Here are 5 easy steps for calculating the final ASIC unit cost of your project.
The model I show here is a simplified version of the one we are using. There are more details related to ASIC manufacturing price to be taken into account, such as minimum order value, wafer-level yield etc. But for now, these are ignored. They will be covered in one of the next posts together with a neat and handy Excel ASIC price calculator.
Get the wafer price.
Find the number of dies per wafer.
Get the package price.
Find the test cost (both wafer test and package test)
Find the logistics and shipping price.
Guesstimate the yield.
Wafer price: 2000$
QFN Package price: 0.2$
Test price: 0.3$
Logistics price: 0.1$
Final ASIC cost: 2.889$