H - Electricity – 01 – L
Patent
H - Electricity
01
L
356/172
H01L 23/48 (2006.01) H01L 29/06 (2006.01) H01L 29/08 (2006.01) H01L 29/417 (2006.01)
Patent
CA 1212781
A B S T R A C T A SEMICONDUCTOR POWER COMPONENT AND METHOD OF MANUFACTURING The semiconductor is of the multicellular type having a substrate (10) of a first conductivity type with a plurality of areas of opposite, conductivity type in diffused its surface with undiffused areas of substrate being left in between the diffused areas thereby constituting a patchwork of alternating N type and P type cells. The cells of each type are connected in parallel to define two terminals of the component. In accordance with the invention, the entire surface of the patchwork is covered by first and second conductive layers (30, 50) serving to provide said parallel connections of the cells of each type. The two layers interpenetrate each other in a frontier zone (ZF) in such a manner that each upper half layer is connected to the lower half layer on the other side of the frontier zone. The surface of the component thus provides two large conductive areas (50e, 50b) each of which is electrically connected to all the cells of one or other type, and thus constituting an emitter electrode (or cathode) and a base electrode (or trigger) for the component.
453312
Fairchild Camera And Instrument Corporation
Smart & Biggar
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