Source/Drain Feature to Contact Interfaces

Examples of an integrated circuit with an interface between a source/drain feature and a contact and examples of a method for forming the integrated circuit are provided herein. In some examples, a substrate is received having a source/drain feature disposed on the substrate. The source/drain feature includes a first semiconductor element and a second semiconductor element. The first semiconductor element of the source/drain feature is oxidized to produce an oxide of the first semiconductor element on the source/drain feature and a region of the source/drain feature with a greater concentration of the second semiconductor element than a remainder of the source/drain feature. The oxide of the first semiconductor element is removed, and a contact is formed that is electrically coupled to the source/drain feature. In some such embodiments, the first semiconductor element includes silicon and the second semiconductor element includes germanium.