Patent ID: 9306558
Filing Date: 2016-04-05
CPC Classification: H01L,H03K

Claim Text:
1. A field-effect transistor comprising: a source electrode provided on an active region of the field-effect transistor; a drain electrode provided on the active region; a gate electrode provided between the source electrode and the drain electrode; a source electrode pad formed on the source electrode and electrically connected to the source electrode; and a drain electrode pad formed on the drain electrode and electrically connected to the drain electrode, the source electrode and the drain electrode each extending in a finger-like configuration, the source electrode being formed so as to neighbor the drain electrode in a direction crossing a lengthwise direction in which the finger-like drain electrode extends, the source electrode extending in the lengthwise direction, and an insulating layer provided on the drain electrode, the source electrode and the gate electrode, wherein in the source electrode pad, an area of coverage regions over the drain electrode is smaller than an area of coverage regions over the source electrode, and in the drain electrode pad, an area of coverage regions over the source electrode is smaller than an area of coverage regions over the drain electrode, the finger-like drain electrode and the finger-like source electrode are arrayed in plurality so as to be alternated in the direction crossing the lengthwise direction, and the drain electrode pad and/or the source electrode pad has: a bonding portion for bonding use, a plurality of lengthwise-direction portions extending in the lengthwise direction along the drain electrodes, and a connecting portion extending in a direction crossing the lengthwise direction and connecting to two adjacent lengthwise-direction portions, and wherein in the connecting portion, an area of a first portion separated from the bonding portion by a first distance is larger than an area of a second portion separated from the bonding portion by a second distance longer than the first distance.