# AC transmission and Semiconductors

Semiconductors depends on AC transmission.

Source page: https://www.materialinsights.org/links/ac-transmission-and-semiconductors/

[AC transmission](https://www.materialinsights.org/energy/e_hvac/) (energy) and [Semiconductors](https://www.materialinsights.org/industries/semiconductors/) (industry): 1 relationship.

## How they are linked

### 1. Industry input

*Physical flow · Criticality 5 of 5 · AC transmission → Semiconductors*

6 of the enterprise types in Semiconductors depend on AC transmission; for the most dependent, it rates 5 out of 5 on criticality.

- **6** enterprise types depend on it
- **5 of 5** highest criticality

Enterprise types that depend on it:

- Contract foundries: fabs need tens to hundreds of megawatts of firm power (criticality 5 of 5)
- Silicon wafer makers: crystal pullers are electricity intensive (criticality 4 of 5)
- Electronic chemical and specialty gas suppliers: air separation units are large power users (criticality 4 of 5)
- Integrated device makers and memory makers: firm grid power (criticality 4 of 5)
- Package substrate and lead-frame makers: plating lines and cleanrooms (criticality 4 of 5)
- Outsourced assembly and test (OSAT) firms: factory power (criticality 3 of 5)

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.