초록 ▼

A bipolar transistor is provided which is of high reliability and high gain, and which is particularly suitable to high speed operation. The bipolar transistor operates with high accuracy and with no substantial change of collector current even upon change of collector voltage. It also has less vari

A bipolar transistor is provided which is of high reliability and high gain, and which is particularly suitable to high speed operation. The bipolar transistor operates with high accuracy and with no substantial change of collector current even upon change of collector voltage. It also has less variation than conventional bipolar transistors for the collector current while ensuring high speed properties and high gain. In one example, the band gap in the base region is smaller than the band gap in the emitter and collector regions. The band gap is constant near the junction with the emitter region and decreases toward the junction with the collector region. A single crystal silicon/germanium is a typically used for the base region.

대표청구항 ▼

A bipolar transistor is provided which is of high reliability and high gain, and which is particularly suitable to high speed operation. The bipolar transistor operates with high accuracy and with no substantial change of collector current even upon change of collector voltage. It also has less vari

A bipolar transistor is provided which is of high reliability and high gain, and which is particularly suitable to high speed operation. The bipolar transistor operates with high accuracy and with no substantial change of collector current even upon change of collector voltage. It also has less variation than conventional bipolar transistors for the collector current while ensuring high speed properties and high gain. In one example, the band gap in the base region is smaller than the band gap in the emitter and collector regions. The band gap is constant near the junction with the emitter region and decreases toward the junction with the collector region. A single crystal silicon/germanium is a typically used for the base region. rity of Disease in Meningococcal Infections," J. Infect. Dis., 172:433-439 (1995). van Leeuwan et al., "Hepatic Failure and Coma After Liver Resection is Reversed by Manipulation of Gut Contents: The Role of Endotoxin," Surgery, 110(2):169-175 (Aug., 1991). Van Zee et al., "Tumor necrosis factor soluble receptors circulate during experimental and clinical inflammation and can protect against excessive tumor necrosis feactor, α in vitro and in vivo", Proc. Natl. Acad. Sci. USA., 89:4845-4849 (Jun., 1992). Van Zee et al., "Tumor Necrosis Factor (TNF) Soluble Receptors Protect Against Excessive TNFα During Infection and Injury", Fed. Amer. Soc. Exp. Biol., 6:A1715 (1992) (Abstract 4512). VanderMeer et al., "Bactericidal/Permeability Increasing Protein Ameliorates Acute Lung Injury in Porcine Endotoxemia," J. Infect. Dis., 172(1):2006-14 (MAy 1994). Verheijen et al., "A Simple, Sensitive Spectrophotometric Assay for Ext