Patent ID: 9391024
Filing Date: 2016-07-12
CPC Classification: H01L

Claim Text:
1. A method of depositing a multi-layer dielectric stack, comprising: depositing upon a substrate a first layer having a first thickness, wherein the first layer is formed by delivering one or more organosilicon compounds and one or more porogens in the presence of RF power, and the first layer is formed in a processing region of a plasma chamber; depositing a second layer over the first layer, wherein the second layer has a second thickness that is less than the first thickness, and wherein the second layer is formed by delivering one or more organosilicon compounds and one or more porogens in the presence of RF power in the processing region; and exposing the second layer to an ultraviolet radiation, wherein a porous cross-linked multi-layer dielectric stack is produced, and the porogen is removed from the first layer and second layer.