Patent ID: 8471387

Claim:
An extendable network structure, comprising: a first and a second device portion respectively having a first and a second center, each of the first and second device portions comprising a semiconductor element; and at least three connectors connected to the first device portion, wherein the second device portion is electrically connected to the first device portion through one of the three connectors; wherein each of the connectors is extendable from an initial state to an extended state, such that a first distance between the first and second centers in the extended state is at least 1.1 fold of a second distance between the first and second centers in the initial state, and wherein each of the connectors has a parameter Z and a breaking strain, and the parameter Z of said each of the connectors is less than the breaking strain thereof, wherein the parameter Z is defined by the following formula: Z = ( - W 2 ) ⁢ ( 1 R f - 1 R i ) 1 - W 2 ⁢ ⁢ R i , wherein W represents a width of a portion of any one of the connectors, R f represents a radius of curvature of the portion of said any one of the connectors in the extended state, and R i represents a radius of curvature of the portion of said any one of the connectors in the initial state.