A new method of forming an ohmic contact without an increase in parasitic resistance is proposed in the Ti/GeO2/Ge substrate. Fermi-level depinning in Ti/GeO2/n–Ge contacts is possible with the formation… Click to show full abstract
A new method of forming an ohmic contact without an increase in parasitic resistance is proposed in the Ti/GeO2/Ge substrate. Fermi-level depinning in Ti/GeO2/n–Ge contacts is possible with the formation of an interfacial TiOx layer in the contacts via an interfacial reaction. Unlike the intentional deposition of a metal oxide on a Ge substrate, this method provides easy process integration to lessen Fermi-level pinning in n-type Ge substrates.
               
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