本发明公开了一种缩短半导体芯片之短边长度之技术。特别是提供一种于构成LCD驱动器之长方形形状之半导体芯片中，通过改进短边方向之平面配置方案以缩短半导体芯片尺寸之技术。具体为：构成LCD驱动器之半导体芯片CHP2中，复数之输入保护电路3a~3c布置于复数之输入用凸块电极IBMP中之一部分输入用凸块电极IBMP之下层。另一方面，于复数之输入用凸块电极IBMP中之其他输入用凸块电极IBMP之下层不配置输入保护电路3a~3c，而配置SRAM 2a~2c(内部电路)。

To provide a technique capable of reducing the chip size of a semiconductor chip and particularly, a technique capable of reducing the chip size of a semiconductor chip in the form of a rectangle that constitutes an LCD driver by devising a layout arrangement in a short-side direction. In a semiconductor chip CH2 that constitutes an LCD driver, input protection circuits 3a to 3c are arranged in a lower layer of part of a plurality of input bump electrodes IBMP and on the other hand, in a lower layer of the other part of the input bump electrodes IBMP, the input protection circuits 3a to 3c are not arranged but SRAMs 2a to 2c (internal circuits) are arranged.