Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device of high strength that lowers an effective dielectric constant k eff , maintains an inter-level vertical capacity in an interconnection at a low level and a manufacturing method of the same. SOLUTION: The method of manufacturing the device comprises a step for providing a structure having an insulating layer 120 of at least one interconnection 130 and a step for forming a sublithographic template mask 150 on the insulating layer. A sublithographic feature 135a is formed in the vicinity of at least one intereconnection by performing etching on the insulating layer through the sublithographic template mask using a selective etching step. COPYRIGHT: (C)2005,JPO&NCIPI
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:
A method of forming an interconnect structure in an inter-layer dielectric (ILD) material, the method include the steps of creating one or more via openings in the ILD material; forming a first liner covering at least one of the one or more via openings; creating one or more trench openings on top of at least one of the one or more via openings covered by the first liner; and forming a second liner covering the trenching openings and at least part of the first liner. An interconnect structure formed by the method is also provided.
Abstract:
A structure for a chip (11) or chip package is disclosed, with final passivation (17) and terminal metallurgy which are mechanically decoupled but electrically coupled to the multilayer on-chip interconnects. This decoupling allows the chip to survive packaging stresses in the final passivation region, with strain relief from the decoupling region and compliant leads (14) therein, so that on-chip interconnect levels do not feel these external packaging or other stresses. This structure is particularly preferred for on-chip interconnects consisting of Cu and low-k dielectric, the latter having inferior mechanical properties relative to Si0 2 . The decoupled region extends over all chips on the wafer. It may also extend into the edgeseal or dicing channel region so as to allow chip dicing and retention of this mechanical decoupling all around every chip on the wafer.
Abstract translation:公开了一种用于芯片(11)或芯片封装的结构,其中最终钝化(17)和终端冶金机械地去耦合但电耦合到多层片上互连。 该去耦允许芯片在最终钝化区域中经受包装应力,其中去耦区域和柔性引线(14)的应变消除,使得片上互连电平不会感受到这些外部封装或其它应力。 这种结构对于由Cu和低k电介质组成的片上互连是特别优选的,后者相对于Si 2 O 2具有较差的机械性能。 去耦区延伸在晶片上的所有芯片上。 它还可以延伸到edgeseal或切割通道区域,以便允许在晶片上的每个芯片周围的这种机械去耦的芯片切割和保持。