Patent ID: 8305094

Claim:
A resistance measuring device comprising: a first substrate having a bonding area defined thereon, the first substrate comprising the following elements on a surface on the first substrate: a first bonding pad, a second bonding pad, a third bonding pad, and a fourth bonding pad disposed orderly in the bonding area; a first switch transistor disposed in the bonding area, a source and a drain or a drain and a source of the first switch transistor being electrically connected to the second bonding pad and the third bonding pad respectively; a first switch conductive line electrically connected to a gate of the first switch transistor; and a switch connection device electrically connected to the first switch conductive line; and a second substrate disposed above the bonding area and comprising: a first measuring bump, a second measuring bump, a third measuring bump, and a fourth measuring bump disposed orderly on a lower surface of the second substrate and respectively corresponding to and electrically connected to the first bonding pad, the second bonding pad, the third bonding pad, the third bonding pad, and the fourth bonding pad; a second switch transistor, a source and a drain or a drain and a source of the second switch transistor being electrically connected to the first measuring bump and the third measuring bump respectively; a third switch transistor, a source and a drain or a drain and a source of the third switch transistor being electrically connected to the third measuring bump and the fourth measuring bump respectively; a second switch conductive line electrically connected to a gate of the second switch transistor and a gate of the third switch transistor; and a switch bump disposed on the lower surface of the second substrate and electrically connected to the second switch conductive line.