THEORY AND METHOD OF ELIMINATING NUMERICAL OSCILLATION OF DIFFUSION-DRIFT EQUATION  

作　　者：何野 曹国祥 王元明 

机构地区：[1]Center of Microelectronics, Southeast University, Nanjing 210018, PRC [2]Department of Mathematics and Mechanics, Southeast University, Nanjing 210018, PRC

出　　处：《Chinese Science Bulletin》1991年第15期1253-1256,共4页

摘　　要：I. INTRODUCTIONThe classical model of semiconductor device is a convection-diffusion one. When the convective term (or drift term) dominates over the diffusive one, wiggles will appear in the numerical solution if one uses classical finite element method, finite difference method or finite box method. The phenomenon is caused by the 'negative diffusion' arising from the numerical discretization method. In order to control wiggles and improve the accuracy of the humeri-

关 键 词：OSCILLATION NUMERICAL THEORY diffusion-drift model variation. 

分 类 号：N[自然科学总论]