Marquez IP Law Office, PLLC
Semiconductor device
A semiconductor device includes a semiconductor stack having a first-type semiconductor structure, an active structure, and a second-type semiconductor structure disposed on the first-type semiconductor structure. The second-type semiconductor structure has a doping concentration. A first portion includes a part of the first-type semiconductor structure, the active structure, and the second-type semiconductor structure, and has a current confining region. A second portion includes a part of the first-type semiconductor structure, the active structure, and the second-type semiconductor structure, and includes a first-type heavily doped region in the second-type semiconductor structure. The first-type heavily doped region includes a doping concentration higher than that of the second-type semiconductor structure.
EPISTAR CORPORATION
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Jung-Jen Hsin-Kang
Li Chen