Patent ID: 9508676
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. A semiconductor package structure having hollow chamber includes: a bottom substrate comprising a bottom baseboard defining a disposing area, at least one first exposed area and a second exposed area, wherein the disposing area is a closed loop and surrounds the second exposed area, and wherein a bottom metal layer is formed on the disposing area and comprises at least one corner having a first outer lateral surface, a second outer lateral surface and an outer connection surface located between and connecting the first outer lateral surface and the second outer lateral surface, wherein the first outer lateral surface comprises a first bottom edge having a first extreme point, a first extension line is formed extendedly from the first extreme point, and the second outer lateral surface comprises a second bottom edge having a second extreme point, a second extension line is formed extendedly from the second extreme point, wherein a cross point is formed by crossing the first extension line and the second extension line, and the at least one first exposed area is defined by connecting the cross point, the first extreme point and the second extreme point; a connection layer formed from a plurality of reflowed solder balls on the bottom metal layer; and a top substrate having a joint surface, wherein the joint surface connects to the connection layer to form a hollow chamber between the top substrate and the bottom substrate.