Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Drift-field transistor
open-in-new
<h2 id="similar-high-speed-transistors">Similar high speed transistors</h2> <p>Another way to speed the base transit time of this type of transistor is to vary the band gap across the base, e.g. in the SiGe [epitaxial base] BJT the base of Si1−ηGeη can be grown with η approx 0.2 by the collector and reducing to 0 near the emitter (keeping the dopant concentration constant).<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a>: 307 </p> <h2 id="applications">Applications</h2> <p>Germanium diffused junction transistors were used by IBM in their <a href="/facts/Saturated_Drift_Transistor_Resistor_Logic/yRqdvqt0">Saturated Drift Transistor Resistor Logic</a> (SDTRL), used in the <a href="/facts/IBM_1620/yRqdvqt0">IBM 1620</a>. (Announced Oct 1959) </p> <h2 id="external-links">External links</h2> <ul><li><a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=960370"><i>Herb’s Bipolar Transistors</i> IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 48, NO. 11, NOVEMBER 2001</a> PDF needs IEEE subscription</li> <li><a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1474625">Influence of Mobility and Lifetime Variations on Drift-Field Effects in Silicon-Junction Devices</a> PDF needs IEEE subscription</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Bipolar Transistor. Chenning <a href="http://www.eecs.berkeley.edu/~hu/Chenming-Hu_ch8.pdf" target="_blank">http://www.eecs.berkeley.edu/~hu/Chenming-Hu_ch8.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Fundamentals of Semiconductor Devices. <a href="https://books.google.com/books?id=REQkwBF4cVoC&dq=drift-field+transistor&pg=PA469" target="_blank">https://books.google.com/books?id=REQkwBF4cVoC&dq=drift-field+transistor&pg=PA469</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Bipolar Transistor. Chenning <a href="http://www.eecs.berkeley.edu/~hu/Chenming-Hu_ch8.pdf" target="_blank">http://www.eecs.berkeley.edu/~hu/Chenming-Hu_ch8.pdf</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> </ol>