Patent ID: 9530746
Filing Date: 2016-12-27
CPC Classification: H01L

Claim Text:
1. A chip mounting structure establishing a flip-chip interconnect between a chip and a board via a plurality of bumps, the structure comprising: a first bump of the plurality of bumps formed at a first distance from the chip; and a second bump of the plurality of bumps formed at a second distance from the board, wherein the first bump is adjacent to the second bump, a first set of pillars arranged on a connection surface of the chip at first alternating flip-chip interconnect positions of the chip, wherein a first bump is on each of the first set of pillars and each of the first set of pillars is of a predetermined height that is greater than each of a thickness of the first bump and a thickness of the second bump; a second set of pillars arranged on a connection surface of the board at second alternating flip-chip interconnect positions of the board different from those on the connection surface of the chip atwhich the first set of pillars is arranged, wherein a second bump is on each of the second set of pillars and each of the second set of pillars is of a predetermined height that is greater than each of a thickness of the first bump and a thickness of the second bump; wherein each first bump of the plurality of bumps is formed on the connection surface of the board at flip-chip interconnect positions not occupied by the second set of pillars; and each second bump of the plurality of bumps is formed on the connection surface of the chip at flip-chip interconnect positions not occupied by the first set of pillars, and each second bump is on a same plane as a first end of each of the first pillars and a second end of each first pillar is connected to a first bump.