Patent ID: 6563194
Filing Date: 2003-05-13
Classification: H01L

Abstract:
A semiconductor device, comprising:a semiconductor substrate having a flat surface with a diffusion layer of a first conduction type diffusing into the semiconductor substrate through the flat surface, the semiconductor substrate being of a second conduction type forming a collector area; a base area of the first conduction type formed into the flat surface of the semiconductor substrate to a depth below the diffusion layer; an emitter area of a second condition type formed into said base area; an impurity area of the first conduction type formed into the flat surface of the semiconductor substrate to a depth below the diffusion layer and being separated from said base area; a base electrode connected to said base area; a base pad connected to said said impurity area; and a surface resistor spaced apart from the flat surface of the semiconductor substrate and extending to and between the base electrode and the base pad for electrical connection therebetween.