SEMICONDUCTOR PHYSICS

Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation

Li Hongli, Sun Yicai, Wang Wei and Harry Hutchinson

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Abstract: Van der Pauw's function is often used in the measurement of a semiconductor's resistivity. However, it is difficult to obtain its value from voltage measurements because it has an implicit form. If it can be expressed as a polynomial, a semiconductor's resistivity can be obtained from such measurements. Normally, five orders of the abscissa can provide sufficient precision during the expression of any non-linear function. Therefore, the key is to determine the coefficients of the polynomial. By taking five coefficients as weights to construct a neuronetwork, neurocomputing has been used to solve this problem. Finally, the polynomial expression for van der Pauw's function is obtained.

Key words: measurement of the semiconductor's resistivityvan der Pauw functionreversal developmentneurocomputingpolynomial matchlearning rate of weight vector regulation

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    Received: 20 August 2015 Revised: 29 September 2011 Online: Published: 01 December 2011

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      Li Hongli, Sun Yicai, Wang Wei, Harry Hutchinson. Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation[J]. Journal of Semiconductors, 2011, 32(12): 122002. doi: 10.1088/1674-4926/32/12/122002 Li H L, Sun Y C, Wang W, H Hutchinson. Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation[J]. J. Semicond., 2011, 32(12): 122002. doi:  10.1088/1674-4926/32/12/122002.Export: BibTex EndNote
      Citation:
      Li Hongli, Sun Yicai, Wang Wei, Harry Hutchinson. Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation[J]. Journal of Semiconductors, 2011, 32(12): 122002. doi: 10.1088/1674-4926/32/12/122002

      Li H L, Sun Y C, Wang W, H Hutchinson. Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation[J]. J. Semicond., 2011, 32(12): 122002. doi:  10.1088/1674-4926/32/12/122002.
      Export: BibTex EndNote

      Neurocomputing van der Pauw function for the measurement of a semiconductor's resistivity without use of the learning rate of weight vector regulation

      doi: 10.1088/1674-4926/32/12/122002
      Funds:

      Tianjin City High School Science & Technology Fund Planning Project

      • Received Date: 2015-08-20
      • Accepted Date: 2011-09-17
      • Revised Date: 2011-09-29
      • Published Date: 2011-11-23

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