impurity level

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impurity level [im′pyu̇r·əd·ē ‚lev·əl]

(solid-state physics)

An energy level in the band gap of a semiconductor that results from the presence of an impurity atom.

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No references found			For high impurity concentration, when the impurity level merges with the conduction or valence band, the free electron (hole)-phonon scattering theory explains the conductivity values of a number of doped semiconductors. Physics and Mathematics posters abstracts by Journal of the Alabama Academy of Science One reason for this is that the solder supplier will not be held responsible for any claim if solder is used with a higher contamination level than what they advise as maximum impurity level. Allowable concentration of contaminating elements in solder: ... by Diepstraten, Gerjan / Circuits Assembly Specifically, in the more recent 483, the FDAer observed impurity levels of 0. Duramed challenged by impurities, discontinued product in ... by Validation Times			impulse response impulse sealing impulse separator impulse signaling impulse solenoid impulse strength impulse tachometer impulse train impulse transmission impulse turbine impulse voltage impulse welding impulse-type telemeter Impulsion impulsive impulsive force impulsive phase impulsive sound impulsive sound equation impulsive stimulated thermal scattering ImPulsTanz: Vienna International Dance Festival impunctate impure impurity impurity band impurity level impurity scattering impurity semiconductor Imputation, Theory of IMR Imre Madach Imre Madách Imre Revesz Imre Révész Imre Sallai Imre Steindl Imre Szabo Imre Szabó Imre Thokoly Imre Thököly Imre Vajda Imri Imroz Imru al-Kais Imru Al-Qays IMS IMS 6100 IMS Forum IMS/Data Base IMS/Data Communications Imsai			impure impure impure impure air impure flutter impure flutter impure flutter impure flutter impurely impurely impurely impureness impureness impureness impurer impurer impurer impurest impurest impurest impurities impurities impurities impurity impurity impurity impurity band Impurity Board Conduction Impurity Free Vacancy Diffusion Impurity Induced Layer Disordering impurity level impurity scattering impurity semiconductor Impurity Stimulation Impurity-Free Disordering Impurity-Free Vacancy Disordering Impurple Imputability imputable imputable Imputableness imputably imputation imputation Imputation Credit Account imputation from criminal proceeding imputation of blame imputation of dereliction imputation of fault Imputation of payment imputation of wrongdoing imputation system Imputation tax system Imputation, Theory of imputations imputations imputative imputative imputatively imputatively

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