Patent ID: 9185804
Filing Date: 2015-11-10
Classification: H01L,H05K

Abstract:
1. A printed circuit board comprising: a first semiconductor package including a first signal terminal group and a second signal terminal group arranged on an outer circumference side with respect to the first signal terminal group; a second semiconductor package including a third signal terminal group and a fourth signal terminal group arranged on an inner circumference side with respect to the third signal terminal group and transmitting a bus signal with the first semiconductor package; and a printed wiring board in which the first semiconductor package is mounted on a first surface layer and the second semiconductor package is mounted on a second surface layer, wherein the first signal terminal group of the first semiconductor package is connected to the third signal terminal group of the second semiconductor package via a first via hole prepared in the printed wiring board and a first bus wiring formed on the second surface layer of the printed wiring board, and wherein the second signal terminal group of the first semiconductor package is connected to the fourth signal terminal group of the second semiconductor package via a second bus wiring formed on the first surface layer of the printed wiring board and a second via hole prepared in the printed wiring board.