The present application discloses a method for forming electrical contacts on a semiconductor substrate. The method includes forming a first metal layer over the substrate, and forming a layer of a second metal oxide by sputter deposition of a second metal in an oxygen environment.

A layered structure for forming charging terminals for high power applications. In some embodiments, the layered structure may include a substrate and a contact layer disposed over at least a portion of the substrate. The substrate may have a conductivity greater than 40% International Annealed Copper Standard (IACS). The contact layer may demonstrate a coefficient of friction of less than 1.4, such as from 0.1 to 1.4, as measured in accordance with American Society of Testing and Materials (ASTM) G99-17. The contact layer may include a precious-metal-based alloy, such as a silver-samarium alloy.

A layered structure for forming charging terminals for high power applications. In some embodiments, the layered structure may include a substrate and a contact layer disposed over at least a portion of the substrate. The substrate may have a conductivity greater than 40% International Annealed Copper Standard (IACS). The contact layer may demonstrate a coefficient of friction of less than 1.4, such as from 0.1 to 1.4, as measured in accordance with American Society of Testing and Materials (ASTM) G99-17. The contact layer may include a precious-metal-based alloy, such as a silver-samarium alloy.

Various embodiments disclosed relate to an alloy. The alloy includes elemental silver. The alloy further includes a metal oxide phase in the elemental silver. The metal oxide phase includes a wetting agent layer that coats the metal oxide phase.

An electrical contact tip for switching applications. The contact tip includes a body having a first layer and a second layer. The first layer arranged on the second layer and adapted to come in contact with a corresponding contact tip during switching operations. The first and second layers consist of Ag-composites of one or more elements, compounds or alloys, where the hardness of the first layer is lower than the hardness of the second layer.

A limit switch includes fixed contacts and a movable contact, the fixed contacts and the movable contact formed from an AuNi metal alloy of no less than 97% Au by weight. The limit switch detects position, change, movement, number of passes, or the like and outputs an on signal or an off signal depending on whether a detection occurred.

A limit switch includes fixed contacts and a movable contact, the fixed contacts and the movable contact formed from an AuNi metal alloy of no less than 97% Au by weight. The limit switch detects position, change, movement, number of passes, or the like and outputs an on signal or an off signal depending on whether a detection occurred.

A contact unit for an electromechanical switching device includes a carrier element and a contact element connected to the carrier element. The contact element has a silver-containing layer that provides a contact area for making releasable contact with a further contact area of the switching device depending on a switching state of the switching device. The silver-containing layer includes diamond particles at least in the region of the contact area.

A contact unit for an electromechanical switching device includes a carrier element and a contact element connected to the carrier element. The contact element has a silver-containing layer that provides a contact area for making releasable contact with a further contact area of the switching device depending on a switching state of the switching device. The silver-containing layer includes diamond particles at least in the region of the contact area.

Circuit breakers with moving contacts having heel-toe action are configured to direct arcing across a small portion of a stationary contact surface to an adjacent arc chute to thereby alleviate deterioration due to arcing and improve conductivity of a major portion of the stationary contact and moving contact surface over time.