Patent ID: 9253882
Filing Date: 2016-02-02
CPC Classification: H01L,H05K,Y10T

Claim Text:
1. An electronic component built-in multi-layer wiring board that comprises collectively stacked therein a plurality of first printed wiring boards by thermal compression bonding, and that comprises an electronic component package built in thereto, wherein the electronic component package comprises a first electronic component built in thereto and a plurality of second printed wiring boards stacked to have first electrodes on an outermost surface of the package, the first electronic component including second electrodes, wherein a pitch of adjacent electrodes of the first electrodes is wider than a pitch of adjacent electrodes of the second electrodes of the first electronic component and the pitch of the adjacent electrodes of the first electrodes is matched to a wiring pitch of the first printed wiring boards, the first electrodes being connected to the second electrodes in one-to-one correspondence, the electronic component built-in multi-layer wiring board includes a second electronic component having a thickness which is greater than that of the first electronic component, and further comprising a third electronic component different from the first and second electronic components, the third electronic component being surface-mounted immediately above or below the built-in location of the electronic component package with electrodes of the third electronic component formed at a pitch matched to the wiring pitch of the first printed wiring board being connected to the electrodes of the electronic component package by an electrically shortest path.