Rohm co., ltd. (20250015202). SEMICONDUCTOR DEVICE
SEMICONDUCTOR DEVICE
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SEMICONDUCTOR DEVICE
This abstract first appeared for US patent application 20250015202 titled 'SEMICONDUCTOR DEVICE
Original Abstract Submitted
a semiconductor device includes a chip having a principal surface, a pn-junction portion extending in a horizontal direction along the principal surface inside the chip, a trench insulating structure formed in the principal surface such that the trench insulating structure penetrates through the pn-junction portion, and demarcating a diode region in the chip, a barrier forming region formed in a surface layer portion of the principal surface in the diode region, and a metal layer located on the principal surface such that the metal layer covers the barrier forming region in the diode region, and forming a schottky-junction portion with the barrier forming region.