The term contact resistance refers to the contribution to the total resistance of a material which comes from the electrical leads and connections as opposed to the intrinsic resistance, which is an inherent property, independent of the measurement method. The idea of potential drop on the injection electrode was introduced by William Shockley to explain the difference between the experimental results and the model of gradual channel approximation. The name "contact resistance" was decided for the consideration of the metal–semiconductor interface as a main contribution to this phenomenon. Beside that also "interface resistance", "transitional resistance", or just simply "correction term" were used. Therefore was later used term "parasitic resistance" as a more general term, where it is usually still assumed that the contact resistance has a major contribution.
Read more about Contact Resistance: Experimental Characterization, Quantum Limit, Other Forms of Contact Resistance, Significance
Famous quotes containing the words contact and/or resistance:
“I stand in awe of my body, this matter to which I am bound has become so strange to me. I fear not spirits, ghosts, of which I am one,—that my body might,—but I fear bodies, I tremble to meet them. What is this Titan that has possession of me? Talk of mysteries! Think of our life in nature,—daily to be shown matter, to come in contact with it,—rocks, trees, wind on our cheeks! the solid earth! the actual world! the common sense! Contact! Contact! Who are we? where are we?”
—Henry David Thoreau (1817–1862)
“How is freedom measured, in individuals as in nations? By the resistance which has to be overcome, by the effort it costs to stay aloft. One would have to seek the highest type of free man where the greatest resistance is constantly being overcome: five steps from tyranny, near the threshold of the danger of servitude.”
—Friedrich Nietzsche (1844–1900)