Photo-conductive relay and method of making same

摘要

A photoconductive relay (100) comprises a light-emitting device (101), a photoconductive switching element (102) and columns (103) of a conductive, fusible material. The light-emitting device (101) and the photoconductive switching element (102) respectively include including a light-emitting region (106) and a light-receiving region (107). The columns (103) extend between the light-emitting device (101) and the photoconductive switching element (103) to locate the light-emitting region (106) of the light-emitting device (101) opposite the light-receiving region (107) of the photoconductive switching element (102) and separated from one another by a distance of no more than 100 mu m.