Patent ID: 7234233
Filing Date: 2007-06-26
Classification: H01H,Y10T

Abstract:
1. A method of manufacturing an electromagnetic relay comprising: forming a circuit substrate layer; forming first, second and third electrical contacts on a first surface of the circuit substrate layer, the first, second and third electrical contacts being at least partially wettable by an electrically conducting liquid; attaching a switching layer to the first surface of the circuit substrate layer, the switching layer being aligned such that first, second and third electrical contacts are positioned in a switching channel in the switching layer; positioning a moveable solid slug within the switching channel, the solid slug being at least partially wettable by an electrically conducting liquid; placing an electrically conducting liquid in the switching channel such that the electrically conducting liquid wets the first, second and third electrical contacts and the solid slug; attaching a cap layer to the switching layer, such that the electrically conducting liquid and the solid slug are retained within the switching channel; positioning a first electromagnetic actuator in proximity to the switching channel such that it is operable to move the solid slug to a first position where it is in wetted contact with the first and third contacts; and positioning a second electromagnetic actuator in proximity to the switching channel such that it is operable to move the solid slug to a second position where it is in wetted contact with the second and third contacts.