| 摘要 |
PURPOSE:To reduce a chip size through decreasing the number of elements and improving an integration degree by unifying on an element forming region a clamp diode and a collector resistance of a differential transistor in an ECL circuit. CONSTITUTION:A bipolar transistor constructing a differential transistor in an ECL circuit is formed in element forming regions 5b and 5c, an element unified by a collector resistance and a clamp diode is formed in an element forming region 5a. As the number of elements constructing a circuit decreases, an occupied area of an isolation region isolating elements each other can be reduced. |
