Patent ID: 6482692
Filing Date: 2002-11-19
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:preparing a semiconductor substrate having a main surface; defining a first semiconductor region of a first conductivity type and a plurality of second semiconductor regions in said semiconductor substrate, one of said second semiconductor regions having a second conductivity type and being arranged to form a first junction with said first semiconductor region, said first junction terminating at said main surface of said semiconductor substrate, said second semiconductor regions having one of said first and second conductivity types and forming second junctions with adjacent ones of the second semiconductor regions, said second junctions terminating at said main surface of said semiconductor substrate; forming a first field oxide film to cover said first junction at said main surface of said semiconductor substrate and a plurality of second field oxide films to cover said second junctions at said main surface of said semiconductor substrate; forming at least one field-shield isolation structure on said first semiconductor region of said semiconductor substrate; and forming first circuit elements at said first semiconductor region and second circuit elements at said second semiconductor regions.