# Field Oxide ![](attachments/Field%20Oxide.png#invert) [^1] The field oxide is like a "farming" field which sits between the devices and provides insulation. [^2] Transistor separation is used as isolation. In "deep submicron regimes more advanced techniques (like [trench isolation](trench%20isolation.md) exist) [^3] --- # References [^1]: Design of Analog CMOS Integrated Circuits by Behzad Razavi [^2]: [Electronics](https://electronics.stackexchange.com/questions/593917/what-does-field-in-field-oxide-mean) [^3]: [EDA Board](https://www.edaboard.com/threads/field-oxide-gate-oxide-thin-oxide.114053/)