There are several variables like: concentration of electron deficiencies/holes or electrons (n,p) in p/n-type of semiconductor, concentration of donor or acceptor atoms (Nd,Na) in doped semiconductors, length of pn-juction of diode, electron or hole mobility constant (Dn,Dp), etc.

But all of these variables are unreachable for me. At the beginning I thought at least datasheets should include such data but they don't. Just the ones used practically.

Where/How can I access this kind of information?

  • BTW: All these variables matter for calculating electron/hole average speed (v), current flux(Φ), density of current (J), which are more theoretical calculations. There are also more practical ones like junction capacitance (matters when reverse-biased) and diffusion capacitance (matters when forward-biased).
  • 1
    \$\begingroup\$ Books, the internet, research papers and so on... \$\endgroup\$ – JIm Dearden Jan 7 '17 at 11:54
  • \$\begingroup\$ @JImDearden: There is no data about any of this in datasheet pdf files on internet.... Others, I don't know where any data about this could be found... \$\endgroup\$ – Keno Jan 7 '17 at 13:48
  • \$\begingroup\$ So no one has ever written a book on this subject or published papers or written articles/lectures on the internet - I am very surprised! Or perhaps think it could only appear in the datasheet of a commercially produced diode? This is the basic physics of operation of the PN junction - a subject that has been researched and written about for several decades. \$\endgroup\$ – JIm Dearden Jan 7 '17 at 18:35
  • \$\begingroup\$ @JImDearden: I know it is written everywhere (books, articles, researches, etc.) but I am curious where to find actual values for specific diode for example. I think only those who work at manufacturing stage of semiconductors can access the real values or variables mentioned in the question... \$\endgroup\$ – Keno Jan 7 '17 at 20:15
  • \$\begingroup\$ Any text book on basics of semiconductor devices, e.g. S.M. Sze, "Semiconductor Devices: Physics and Technology" \$\endgroup\$ – Curd Jan 7 '17 at 21:05

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