Ldmos devices, integrated circuits including ldmso devices, and methods for fabricating the same

Abstract

Laterally-diffused-metal-oxide-silicon (LDMOS) devices, integrated circuits including LDMOS devices, and methods for fabricating the same are provided. An exemplary LDMOS device includes a substrate having a surface, a gate structure overlying the surface and a channel region in the substrate below the gate structure, and a drain region in the substrate. The LDMOS device further includes a surface insulator region disposed between the gate structure and the drain region at the surface of the substrate and a dielectric block different from the surface insulator region and located over the surface insulator region. Also, the LDMOS device includes a field effect structure. The field effect structure includes a field plate disposed over and distanced from the surface of the substrate. The field effect structure also includes a conductive structure coupled to the field plate and extending from the field plate toward the dielectric block.