Devices and Layers from a Silicon Chip Top protective layer Conductive layer Metal layer Insulation layers Recessed conductive layer Silicon substrate Silicon substrate Semiconductor Manufacturing Technology by Michael Quirk and Julian Serda Digital IC 10Digital IC Devices and Layers from a Silicon Chip Silicon substrate drain Silicon substrate Top protective layer Metal layer Insulation layers Recessed conductive layer Conductive layer Semiconductor Manufacturing Technology by Michael Quirk and Julian Serda 10