Patent ID: 7943195
Filing Date: 2011-05-17
Classification: C23C,H01L,Y10T

Abstract:
1. A chemical vapor deposition method for producing a porous organosilica glass film, said method comprising: providing a substrate within a chamber; introducing into the chamber gaseous reagents comprising: at least one silicon containing precursor having the formula R at least one porogen selected from the group consisting of: (i) at least one bicyclic hydrocarbon having a bicyclic structure and the formula C (ii) at least one multiply unsaturated bicyclic hydrocarbon having a bicyclic structure and the formula C applying energy to the gaseous reagents in the chamber to induce reaction of the gaseous reagents to deposit a preliminary film on the substrate, wherein the preliminary film contains the porogen; and removing from the preliminary film substantially all of the porogen to provide the porous film with pores and a dielectric constant less than 2.6.