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Browsing by Author Pham, Quoc Trieu

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  • 4308-97-8493-2-10-20181222.pdf.jpg
  • Article

  • Data processing methods for deep level transients measurement

    • Authors: Pham, Quoc Trieu; Hoang, Nam Nhat (2018)

  • The year 2019 marks 45 years in the development of Deep Level Transient Spectroscopy (DLTS) - the signal processing method for determination of overalpping deep levels in semiconductors. From its introduction in 1974 by David Lang (D.V. Lang, J. Appl. Phys. 45, 1974, p.3023) to this date the DLTS method has undergone many changes and modifications: some were purely theoretical speculations, some were to also include new experimental arrangement and technique. This paper provides almost complete review on DLTS, focusing on the main three approaches widely used today. We also summarize the development of this method in the Faculty of Physics, VNU-Hanoi University of Sciences
  • 217.pdf.jpg
  • Article

  • On several correlation integrals of the deep level transients

    • Authors: Hoang, Nam Nhat; Pham, Quoc Trieu (2004)

  • This works presents the theoretical study on several correlation integrals of the capacitance transients of the deep levels. The deconvolution of the transient signals was the major subject of the number of methods referred to under the common name as the Deep Level Transient Spectroscopy methods. In general the separation of the overlapping exponential decays C(t) does not provide a unique solution, so the detection of the closely spaced deep levels by these transients should base mainly on the temperature dependence C(T), not only on the C(t). The results show that the average emission factor en is obtainable directly from various correlation integrals of the capacitance transients...
  • 252.pdf.jpg
  • Article

  • Reference levels signal forms and determination of emisstion factor in DLTS

    • Authors: Hoang, Nam Nhat; Pham, Quoc Trieu (2002)

  • The existence of reference levels of signals which determ ine directly the tem perature dependence of em ission factor in deep level transient phenom ena is discussed. The basic algebraic structure of reference levels in the classical DLTS is studied and various signal forms w ith derived reference levels are given. We then dem onstrate the use of th ese signal forms and compare them w ith the classical DLTS double boxcar signal.

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Browsing by Author Pham, Quoc Trieu

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 4 of 4
  • 4308-97-8493-2-10-20181222.pdf.jpg
  • Article

  • Data processing methods for deep level transients measurement

    • Authors: Pham, Quoc Trieu; Hoang, Nam Nhat (2018)

  • The year 2019 marks 45 years in the development of Deep Level Transient Spectroscopy (DLTS) - the signal processing method for determination of overalpping deep levels in semiconductors. From its introduction in 1974 by David Lang (D.V. Lang, J. Appl. Phys. 45, 1974, p.3023) to this date the DLTS method has undergone many changes and modifications: some were purely theoretical speculations, some were to also include new experimental arrangement and technique. This paper provides almost complete review on DLTS, focusing on the main three approaches widely used today. We also summarize the development of this method in the Faculty of Physics, VNU-Hanoi University of Sciences
  • 217.pdf.jpg
  • Article

  • On several correlation integrals of the deep level transients

    • Authors: Hoang, Nam Nhat; Pham, Quoc Trieu (2004)

  • This works presents the theoretical study on several correlation integrals of the capacitance transients of the deep levels. The deconvolution of the transient signals was the major subject of the number of methods referred to under the common name as the Deep Level Transient Spectroscopy methods. In general the separation of the overlapping exponential decays C(t) does not provide a unique solution, so the detection of the closely spaced deep levels by these transients should base mainly on the temperature dependence C(T), not only on the C(t). The results show that the average emission factor en is obtainable directly from various correlation integrals of the capacitance transients...
  • 252.pdf.jpg
  • Article

  • Reference levels signal forms and determination of emisstion factor in DLTS

    • Authors: Hoang, Nam Nhat; Pham, Quoc Trieu (2002)

  • The existence of reference levels of signals which determ ine directly the tem perature dependence of em ission factor in deep level transient phenom ena is discussed. The basic algebraic structure of reference levels in the classical DLTS is studied and various signal forms w ith derived reference levels are given. We then dem onstrate the use of th ese signal forms and compare them w ith the classical DLTS double boxcar signal.