Publication
IEEE Electron Device Letters
Paper

Characterization of Non-Ohmic Behavior of Emitter Contacts of Bipolar Transistors

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Abstract

Emitter contacts of bipolar transistors, with silicide or polysilicon contacts, are electrically characterized by analyzing the deviation of the base current at high currents from its ideal exponential behavior. A simple theory is presented that explains the deviation of the series voltage drop from ohmic behavior, observed in some of the devices with polysilicon emitter contact, in terms of an interface with tunneling properties. © 1984 IEEE

Date

01 Jan 1984

Publication

IEEE Electron Device Letters

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