Patent ID: 11949025
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A device, comprising:
a drift region of a first conductivity type, the drift region having a surface;
a first implanted region of a second conductivity type in the drift region;
a first interface between the first implanted region and the drift region;
a first metal anode on the first implanted region;
a second metal anode on the first metal anode and on the surface;
a second interface between the second metal anode and the first metal anode, the second interface being spaced from the first interface along a first direction;
a second implanted region;
a third interface between the second implanted region and the drift region, and
a third metal anode on the second implanted region, the second metal anode on the third metal anode, the second interface being between the first interface and the third interface.