Посилання:The features of temperature dependence of contact resistivity of Au-Ti-Pd₂Si-p⁺ ₋Si ohmic contacts /A.E. Belyaev, N.S. Boltovets, L.M. Kapitanchuk, R.V. Konakova, V.P. Kladko, Ya.Ya. Kudryk, A.V. Kuchuk, O.S. Lytvyn, V.V. Milenin, T.V. Korostinskaya, A.B. Ataubaeva, P.V. Nevolin // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2010. — Т. 13, № 1. — С. 8-11. — Бібліогр.: 14 назв. — англ.
Підтримка:This work was supported by the Government Goaloriented
Scientific and Technical Program “The development and acquisition of microelectronic
technologies, organization of serial production of devices and systems with them” 2008-2011. Decree of the Cabinet of Ministers of Ukraine No 1335 from November 21, 2007.
We consider the features of formation of Au-Ti-Pd ohmic contacts to p⁺₋Si.
Metallization was made by vacuum thermal sputtering of Pd, Ti and Au films onto the Si
substrate heated up to 330 °С. It is shown that the contact resistivity increases with
temperature; this is typical of metallic conductivity. We suggest that the ohmic contact is
formed owing to appearance of shunts at Pd deposition on dislocations or other structural
defects. The number of shunts per unit area is close to the measured density of structural
defects at the metal-Si interface.