INPUT-OUTPUT CELL OF CMOS IC

摘要

The output drive capability of the I/O cell is increased by depositing the I/O cells appropriately. The I/O cell (4) is arrayed in a vertial direction to internal cell (1), and transistors of the I/O cells are arrayed in a vertical directions to wells which are positioned above and below the bonding pad. Power lines to apply drive voltage to the transistors are divided for each tansistor to increase output drive capability.