Semiconductor industry and market
For leading-edge logic chips, which is closest to the typical time from starting a wafer on the production line to completing the front-end process?
- AAbout one day
- BSeveral months (roughly three months or more)
- CAbout ten years
Show answer and explanation
Answer: B. Several months (roughly three months or more)
Leading-edge logic chips go through hundreds to over a thousand steps in total, including lithography, deposition and etching, so the front end alone takes several months. Back-end processing and testing come on top of that, so supply cannot be raised quickly when demand jumps, one factor making supply-demand mismatches and shortages likely.
- A. Many steps cannot be completed in one day.
- B. Correct. The front end alone takes several months.
- C. It does not take as long as ten years.