A modular multilayer interwiring structure comprising a plurality of relatively small parts which are produced separately as `sub-units` (1). Each individual layer of the final structure is formed by joining a respective set of unit parts in one plane. The whole multilayer structure is then built by...http://www.google.fr/patents/US5283107?utm_source=gb-gplus-shareBrevet US5283107 - Modular multilayer interwiring structure
