Patent ID: 11862687
Assignee: FUJI ELECTRIC CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method for fabricating a nitride semiconductor device, comprising:
providing a junction region of a first conductivity-type having a doping concentration NJFET by ion-implanting first type dopant ions of the first conductivity-type, the first type dopant being oxygen; and
providing a source region which is shallower than the junction region by ion-implanting second type dopant ions of an element having an atomic weight higher than an atomic weight of the first type dopant ions in the junction region,
wherein a dose DoseJFET in the junction region meets a condition in which a width WJFET (μm) of the junction region is used: 1.3×1013×exp(−1.15×WJFET) cm−2≤DoseJFET≤1.3×1014×exp(−0.75×WJFET) cm−2.