%0 Journal Article %T Characteristic finite difference fractional step methods for three-dimensional semiconductor device of heat conduction %A Yirang Yuan %J Chinese Science Bulletin %@ 1861-9541 %D 2000 %I %R 10.1007/BF02884655 %X The mathematical model of the semiconductor device of heat conduction has been described by a system of four equations. The optimal order estimates in L2 norm are derived for the error in the approximates solution, putting forward a kind of characteristic finite difference fractional step methods. %K semiconductor device %K Three-dimensional heat conduction %K parallel characteristic finite differences %K fractional steps %K L2 error estimate %U http://link.springer.com/article/10.1007/BF02884655