SEMICONDUCTOR CHIP INCLUDING LOW-K DIELECTRIC LAYER

Disclosed is a semiconductor chip comprising a device layer on a substrate, the device layer including a plurality of semiconductor devices; a wiring structure and a lower inter-wiring dielectric layer each on the device layer, the lower inter-wiring dielectric layer surrounding the wiring structure and having a lower permittivity than silicon oxide; an upper inter-wiring dielectric layer arrangedon the lower inter-wiring dielectric layer; an isolation recess arranged along an edge of the substrate, the isolation recess formed on side surfaces of the lower and upper inter-wiring dielectric layers and having a bottom surface at a level equal to or lower than that of a bottom surface of the lower inter-wiring dielectric layer; and a cover dielectric layer covering the side surfaces of the lower and upper inter-wiring dielectric layers and the bottom surface of the isolation recess. 提供了一种半导体芯片，该半导体芯片包括：器件层，位于基底上，器件层包括多个半导体器件；布线结构和下布线间介电层，均位于器件层上，下布线间介电层围绕布线结构并且具有比氧化硅的介电常数低的介电常数；上布线间介电层，布置在下布线间介电层上；隔离凹陷，沿着基底的边缘布置