Patent ID: 7732932

Claim:
A semiconductor chip, comprising: (a) a semiconductor substrate; (b) a transistor on the semiconductor substrate; (c) N interconnect layers on top of the semiconductor substrate and the transistor, wherein N is a positive integer, and wherein the transistor is electrically coupled to the N interconnect layers; (d) a first dielectric layer on top of the N interconnect layers; (e) P crack stop regions on top of the first dielectric layer, wherein P is a positive integer; (f) a second dielectric layer on top of the first dielectric layer, wherein the first dielectric layer is sandwiched between the second dielectric layer and the N interconnect layers, and wherein each crack stop region of the P crack stop regions is completely surrounded by the first dielectric layer and the second dielectric layer; and (g) an underfill layer on top of the second dielectric layer, wherein the second dielectric layer is sandwiched between the first dielectric layer and the underfill layer.