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<p>the number of <a href="page.php?w=electron_hole">holes</a> are equal: n&nbsp;=&nbsp;p, as a direct consequence of charge neutrality for the semiconductor. This may be the case even after doping the semiconductor, though only if it is doped with both donors and acceptors equally. In this case, n&nbsp;=&nbsp;p still holds, and the semiconductor remains intrinsic, though doped. This means that some conductors are both intrinsic as well as extrinsic but only if n (electron donor dopant/excited electrons) is equal to p (electron acceptor dopant/vacant</p><p>
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