Patent ID: 8146046

Claim:
A design structure, comprising a semiconductor structure in a format of a text file or a graphical representation of the semiconductor structure, the design structure stored in a machine readable physically tangible storage device, the design structure being a component of a system configured to design, manufacture, or test the semiconductor structure, the semiconductor structure comprising: (a) a first semiconductor chip and a second semiconductor chip, wherein the first semiconductor chip is on top of and bonded to the second semiconductor chip, wherein the first semiconductor chip comprises a first electric node, wherein the second semiconductor chip comprises a second electric node, and wherein the second semiconductor chip further comprises a first comparing circuit; and (b) a first coupling via electrically connecting the first electric node of the first semiconductor chip to the first comparing circuit of the second semiconductor chip, wherein the first comparing circuit is capable of: (i) receiving an input signal from the first electric node indirectly through the first coupling via, (ii) receiving an input signal from the second electric node directly, and (iii) asserting a first mismatch signal in response to the input signals from the first and second electric nodes being different.