Patent ID: 11950423
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 5:
6. The semiconductor device of claim 1, wherein:
the peripheral circuit area comprises a low-voltage transistor area including the plurality of planar channel transistors, and a high-voltage transistor area laterally adjacent the low-voltage transistor area and including the at least one recess channel transistor, the at least one recess channel transistor having an operation voltage greater than respective operation voltages of the plurality of planar channel transistors; and
the first and second recess channel transistors are in the high-voltage transistor area, the first recess channel transistor having a first operation voltage and comprising the first gate electrode extending to the first depth in the vertical direction, and the second recess channel transistor having a second operation voltage greater than the first operation voltage and comprising the second gate electrode extending to the second depth in the vertical direction.