Semiconductor device having diode devices with different barrier heights and manufacturing method thereof

A Schottky diode device includes a substrate having a first conductivity type, a first well region having a second conductivity type disposed in the substrate, and a first doped region having the second conductivity type in the first well region, wherein the first doped region includes a first porti...

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Bibliographische Detailangaben
Hauptverfasser: Tsui, Felix Ying-Kit, Chang, Yu-Chi, Lo, Wen-Shun
Format: Patent
Sprache:eng
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Zusammenfassung:A Schottky diode device includes a substrate having a first conductivity type, a first well region having a second conductivity type disposed in the substrate, and a first doped region having the second conductivity type in the first well region, wherein the first doped region includes a first portion and a second portion, and the first portion and the second portion have different doping concentrations. The first portion includes a region having at least four sides, from a top-view perspective, abutting the second portion.