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<p>term solid-state became popular at the beginning of the semiconductor era in the 1960s to distinguish this new technology. A semiconductor device works by controlling an electric current consisting of <a href="page.php?w=electron">electron</a>s or <a href="page.php?w=electron_hole">holes</a> moving within a solid crystalline piece of <a href="page.php?w=semiconductor">semiconducting</a> material such as <a href="page.php?w=silicon">silicon</a>, while the <a href="page.php?w=thermionic">thermionic</a> <a href="page.php?w=vacuum_tube">vacuum tube</a>s</p><p>
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