Macronix International Co., Ltd.

Chia-Hui Cheng

Wing-Chor Chan

Jeng Gong

Ying-Chieh Tsai

A high voltage (HV) device and method for manufacturing the same are provided, at least comprising a substrate, an insulation formed on the substrate, a deep well formed in the insulation, an air layer formed in the insulation and disposed adjacent to the bottom surface of the deep well. A bottom surface of the deep well is spaced apart from the substrate. Also, the air layer, interposed between the deep well and the substrate, is spaced apart from the substrate. In one embodiment, an air layer further communicates with an atmosphere outside the HV device, which facilitates heat dissipation.

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Kaohsiung, Taiwan

Chia-Hui Cheng