Patent ID: 8013253

Claim:
An electrical connection board comprising: a plurality of electrical connection terminals on one face of the board for connection to a semiconductor component, wherein the terminals are generally arranged in a matrix having two orthogonal directions; a plurality of electrical connection tracks connected respectively to these terminals; wherein the electrical connection terminals are divided into a multiplicity of identical adjacent connection groups possessing the following characteristics: each group comprises N adjacent terminals placed along a first direction of the matrix and N tracks extending along said first direction towards an edge of the matrix; the N tracks comprise a central track connected to an end terminal on a side towards the edge of the matrix and plural lateral tracks arranged so that, when the number of terminals N is equal to an odd number, the number of lateral tracks passing on each side of the end terminal is equal to one-half of the number of terminals N minus one ((N−1)/2), and, when the number of terminals N is equal to an even number, the number of lateral tracks passing on one side of the end terminal is equal to one-half the number of tracks N (N/2) and the number of lateral tracks passing on the other side of this said end terminal is equal to one-half of the number of terminals N minus one ((N−1)/2); the terminals of a first group are offset by one pitch relative to the terminals of an adjacent second group along each direction of the matrix; and an offset along said first direction is such that a number of lateral tracks equal to the number of terminals N minus one (N−1) pass between the end terminals located on the side of the edge of the matrix and a number of lateral tracks equal to the number of terminals N minus two (N−2) pass between the end terminal of one group and the second terminal of the other group, which are adjacent along the second direction of the matrix.