Patent ID: 7871833

Claim:
A method for determining a separation between a first semiconductor die and a second semiconductor die due to misalignment, comprising: selecting a first group of proximity connectors in the first semiconductor die, the first group of proximity connectors being proximate to a surface of the first semiconductor die, wherein the first group of proximity connectors have a first area; and wherein the first group of proximity connectors includes one or more proximity connectors that are used to communicate signals with the second semiconductor die; measuring a sign of a difference in a coupling capacitance between the first group of proximity connectors and a second group of proximity connectors in the second semiconductor die, the second group of proximity connectors being proximate to a surface of the second semiconductor die, wherein the second group of proximity connectors includes one or more proximity connectors that are used to communicate signals with the first semiconductor die; and determining the separation by selecting different groups of proximity connectors in the second semiconductor die that have areas that are different than the first area until the sign of the difference in the coupling capacitance changes polarity, wherein the different groups of proximity connectors include one or more proximity connectors.