Since an electronic device comprises an electronic component, an external connection terminal electrically connected to the electronic component, and an envelope for sealing the electronic part and having a thickness less than about 0.5 mm, the electronic device is miniaturized even in the case where...http://www.google.de/patents/US5461197?utm_source=gb-gplus-sharePatent US5461197 - Electronic device having a chip with an external bump terminal equal or smaller than a via hole on a board
