Patent ID: 8933525
Filing Date: 2015-01-13
Classification: H01L,Y02E,Y02P

Abstract:
1. A semiconductor apparatus comprising: a semiconductor layer in the form of a wafer and a passivation layer arranged on a surface of the semiconductor layer and serving for passivating the semiconductor layer surface, wherein the passivation layer comprises a chemically passivating passivation sublayer and a field-effect-passivating passivation sublayer, which are arranged one above the other on the semiconductor layer surface; wherein the chemically passivating passivation sublayer directly adjoins the field-effect-passivating passivation sublayer without further intermediate layers being arranged therebetween and wherein: i) the field-effect-passivating passivation sublayer is substantially formed from a material having a negative surface charge density; and ii) a covering layer comprising silicon nitride applied on the passivation layer.