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

The present disclosure provides a method of manufacturing a Schottky diode. The method includes: providing a substrate; forming a first well region in the substrate; defining a first portion and a second portion on a surface of the first well region and performing a first ion implantation on the fir...

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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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Beschreibung
Zusammenfassung:The present disclosure provides a method of manufacturing a Schottky diode. The method includes: providing a substrate; forming a first well region in the substrate; defining a first portion and a second portion on a surface of the first well region and performing a first ion implantation on the first portion while keeping the second portion from being implanted; forming a first doped region by heating the substrate to cause dopant diffusion between the first portion and the second portion; and forming a metal-containing layer on the first doped region to obtain a Schottky barrier interface.