Simplified equivalent-circuit modelling for decoupled and partial decoupled methods in semiconductor device simulation

Jing Fu Dai, Chia Cherng Chang, Jia Wen Lee, Szu Ju Li, Yao Tsung Tsai

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we study the decoupled method which requires less memory on semiconductor device simulation. The decoupled method decouples the three equivalent circuits of semiconductor and solves them sequentially. The three equivalent circuits are formed by formulating the three partial differential equations that describe the electrical behaviour of semiconductor. Since the decoupled method solves one equation in each stage, the decoupled method uses one-ninth memory space of the coupled method. When decoupling the three equivalent circuits, the decoupled method yields a boundary condition limitation. In order to overcome the limitation, we propose a compromising partial decoupled method which has complete boundary condition and requires four-ninth memory space of the coupled method. The three methods are compared for computational efficiency and accuracy in the simulation of BJT. The simulation results are identical.

Original languageEnglish
Pages (from-to)421-432
Number of pages12
JournalInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Volume17
Issue number5
DOIs
StatePublished - Sep 2004

Keywords

  • Decoupled method
  • Device simulation
  • Partial decoupled method

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