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    • 10. 发明授权
    • Porogens, porogenated precursors and methods for using the same to provide porous organosilica glass films with low dielectric constants
    • 孔原子,孔隙前体和使用它们的方法提供具有低介电常数的多孔有机硅玻璃膜
    • US08293001B2
    • 2012-10-23
    • US13031387
    • 2011-02-21
    • Raymond Nicholas VrtisMark Leonard O'NeillJean Louise VincentAaron Scott LukasManchao XiaoJohn Anthony Thomas Norman
    • Raymond Nicholas VrtisMark Leonard O'NeillJean Louise VincentAaron Scott LukasManchao XiaoJohn Anthony Thomas Norman
    • C09D7/12
    • C23C16/401C23C16/56H01L21/02126H01L21/02203H01L21/02274
    • A porous organosilica glass (OSG) film consists of a single phase of a material represented by the formula SivOwCxHyFz, where v+w+x+y+z=100%, v is from 10 to 35 atomic %, w is from 10 to 65 atomic %, x is from 5 to 30 atomic %, y is from 10 to 50 atomic % and z is from 0 to 15 atomic %, wherein the film has pores and a dielectric constant less than 2.6. The film is provided by a chemical vapor deposition method in which a preliminary film is deposited from organosilane and/or organosiloxane precursors and pore-forming agents (porogens) wherein the precursor is a compound of the formula R1n(OR2)p(O(O)CR4)3−n−pSi—R7—SiR3m(O(O)CR5)q(OR6)3−m−q where R1 and R3 are independently H or C1 to C4 linear or branched, saturated, singly or multiply unsaturated, cyclic, partially or fully fluorinated hydrocarbon; R2, R8 and R7 are independently C1 to C6 linear or branched, saturated, singly or multiply unsaturated, cyclic, aromatic, partially or fully fluorinated hydrocarbon, R4 and Rs are independently H, C1 to C6 linear or branched, saturated, singly or multiply unsaturated, cyclic, aromatic, partially or fully fluorinated hydrocarbon, n is 0 to 3, m is 0 to 3, q is 0 to 3 and p is 0 to 3, provided that n+m>1, n+p 3, and m+q 3, wherein the porogen is selected from the group consisting of norbornadiene, alpha-terpinene, limonene, cyclooctane, and cymene. The porogens are subsequently removed to provide the porous film.
    • 多孔有机硅玻璃(OSG)膜由式SivOwCxHyFz表示的材料的单相组成,其中v + w + x + y + z = 100%,v为10〜35原子%,w为10〜 65原子%,x为5〜30原子%,y为10〜50原子%,z为0〜15原子%,其中,膜的孔隙和介电常数小于2.6。 该薄膜由化学气相沉积方法提供,其中预备薄膜由有机硅烷和/或有机硅氧烷前体和成孔剂(致孔剂)沉积,其中前体是式R1n(OR2)p(O(O) )CR 4)3-n-pSi-R 7 -SiR 3 m(O(O)CR 5)q(OR 6)3-m-q其中R 1和R 3独立地为H或C 1至C 4直链或支链,饱和,单或多不饱和, 环状,部分或完全氟化的烃; R2,R8和R7独立为C1至C6直链或支链,饱和,单或多不饱和,环状,芳族,部分或全部是氟化的烃,R4和R5独立地为H,C1至C6直链或支链,饱和,单或多 不饱和的,环状的,芳族的,部分或完全氟化的烃,n为0至3,m为0至3,q为0至3,p为0至3,条件是n + m> 1,n + p 3和 m + q 3,其中致孔剂选自降冰片二烯,α-萜品烯,柠檬烯,环辛烷和伞花烃。 随后除去致孔剂以提供多孔膜。