Lift-off (microtechnology)

Lift-off is a manufacturing process commonly used in microtechnology and semiconductor fabrication for creating intricate patterns on a substrate. The method is particularly utilized in the production of thin-film structures, such as those found in microelectronics, sensors, and MEMS (Micro-Electro-Mechanical Systems). Here's a brief overview of the lift-off process: 1. **Substrate Preparation**: The process begins with a clean substrate, usually silicon or another suitable material, that will support the eventual thin film.