Abstract:
A crosslinked polyarylene material with a reduced coefficient of thermal expansion at high temperatures compared with conventional crosslinked polyarylene materials is provided. In addition, an integrated circuit article containing a crosslinked polyarylene polymer with reduced coefficient of thermal expansion at high temperatures is provided.
Abstract:
PROBLEM TO BE SOLVED: To provide an electrical interconnection structure on a substrate including a first low-k dielectric layer, a spin-on low-k CMP protective layer covalently bonded to the first low-k dielectric layer, and a CVD-bonded hard mask/CMP polishing stop layer. SOLUTION: An electrical via 13 and a wire 11 can be formed in a first low-k dielectric layer 3. A spin-on low-k CMP protective layer 5 prevents a damage which may occur on the low-k dielectric 3 due to an uneven CMP process from the center to an edge or in an area varied in metal density. By adjusting the thickness of the low-k CMP protective layer 5, it is possible to respond to a large change in the CMP process without seriously affecting the effective permittivity of a structure 9. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a combination of an ultralow-dielectric constant dielectric and a dual damascene type Cu interconnecting structure preventing delamination at the time of CMP by enhancing adhesive properties and controlling the resistance of a Cu conductor accurately and uniformly. SOLUTION: An electrical interconnecting structure 3 on a substrate 1 includes a first porous dielectric layer 5 having a surface region from which a pore forming agent has been removed and an etch stop layer 7 arranged on the first porous dielectric layer. The etch stop layer extends to partially fill the pores in the surface region of the first porous dielectric layer from which the pore forming agent has been removed. Thus, adhesive properties are improved during the subsequent treatment. COPYRIGHT: (C)2004,JPO