摘要:
A method for forming a composite barrier layer that also functions as an etch stop in a damascene process is disclosed. A SiC layer is deposited on a substrate in a CVD process chamber followed by deposition of a silicon nitride layer to complete the composite barrier layer. The SiC layer exhibits excellent adhesion to a copper layer in the substrate and is formed by a method that avoids reactive Si+4 species and thereby prevents CuSiX formation. The silicon nitride layer thickness is sufficient to provide superior barrier capability to metal ions but is kept as thin as possible to minimize the dielectric constant of the composite barrier layer. The composite barrier layer provides excellent resistance to copper oxidation during oxygen ashing steps and enables a copper layer to be fabricated with a lower leakage current than when a conventional silicon nitride barrier layer is employed.
摘要翻译:公开了一种用于形成复合阻挡层的方法,该复合阻挡层也用作镶嵌工艺中的蚀刻停止。 将SiC层沉积在CVD处理室中的衬底上,随后沉积氮化硅层以完成复合势垒层。 SiC层对衬底中的铜层表现出优异的粘附性,并且通过避免反应性Si + 4+物质并由此防止CuSi X X形成的方法形成。 氮化硅层的厚度足以为金属离子提供优异的阻挡能力,但保持尽可能的薄,以使复合阻挡层的介电常数最小化。 复合阻挡层在氧化灰化步骤期间提供优异的铜氧化性能,并且与使用常规氮化硅阻挡层相比,能够以较低的漏电流制造铜层。
摘要:
A method is disclosed for reducing metal diffusion in a semiconductor device. After forming a first metal portion over a substrate, a silicon carbon nitro-oxide (SiCNO) layer is deposited on the first metal portion. A dielectric layer is deposited over the SiCNO layer, and an opening is generated in the SiCNO layer and the dielectric layer for a second metal portion to be connected to the first metal portion, wherein the SiCNO layer reduces the diffusion of the first metal portion into the dielectric layer.
摘要:
A semiconductor device package has a concavity-containing encapsulation body to prevent device delamination and increase thermal-transferring efficiency. An encapsulation body of polymer-based material encapsulates a semiconductor device and bonding wires, and a concavity structure is patterned on the encapsulation body by imprinting, laser drilling, photolithography, dry etching, die sawing, or other surface patterning technologies.
摘要:
A method for forming IMD films. A substrate is provided. A plurality of dielectric films are formed on the substrate, wherein each of the dielectric layers are deposited in-situ in one chamber with only one thermal cycle.
摘要:
A method for fabricating a dielectric layer provides for use of a carbon source material separate from a halogen source material when forming a carbon and halogen doped silicate glass dielectric layer. The use of separate carbon and halogen source materials provides enhanced process latitude when forming the carbon and halogen doped silicate glass dielectric layer. Such a carbon and halogen doped silicate glass dielectric layer having a dielectric constant greater than about 3.0 is particularly useful as an intrinsic planarizing stop layer within a damascene method. A bilayer dielectric layer construction comprising a carbon and halogen doped silicate glass and a carbon doped silicate glass dielectric layer absent halogen doping is useful within a dual damascene method.
摘要:
Two problems seen in CMP as currently executed are a tendency for slurry particles to remain on the surface and the formation of a final layer of oxide. These problems have been solved by adding to the slurry a quantity of TMAH or TBAH. This has the effect of rendering the surface being polished hydrophobic. In that state a residual layer of oxide will not be left on the surface at the conclusion of CMP. Nor will many slurry abrasive particles remain cling to the freshly polished surface. Those that do are readily removed by a simple rinse or buffing. As an alternative, the CMP process may be performed in three stages—first convention CMP, then polishing in a solution of TMAH or TBAH, and finally a gentle rinse or buffing.
摘要:
A method of reducing plasma induced damage in semiconductor devices and fluorine damage to a metal containing layer including providing a semiconductor wafer including semiconductor devices including a gate oxide and a process surface including metal lines; carrying out a first high density plasma chemical vapor deposition (HDP-CVD) process to controllably produce a silicon rich oxide (SRO) layer including a relatively increased thickness at a center portion of the process surface compared to a peripheral portion of the process surface; and, carrying out a second HDP-CVD process in-situ to deposit a fluorine doped silicon dioxide layer over the SRO layer to fill a space between the metal lines.
摘要:
A method of generating a layout for a semiconductor device array is provided. A first layout is provided, comprising an active conductive feature, a boundary area surrounding the active conductive feature, and an open area other than the active conductive feature and the boundary area. A plurality of dummy templates of different pattern densities are provided, each of which comprises a plurality of dummy seeds. A second layout is generated by adding the dummy seeds on the open area according to at least one of the dummy templates.
摘要:
A method is disclosed for determining a size of an interconnect between a first and a second conductor respectively in two layers of an integrated circuit while scaling from a reference processing technology to a predetermined processing technology. The method comprises selecting a set of design rules for the conductors based on the predetermined processing technology, determining a length of a first side of a rectangular cross sectional area of the interconnect based on the design rules and a scaling rule for scaling such a length from the reference processing technology to the predetermined processing technology, and determining a length of a second side of the cross sectional area of the interconnect for compensating an increase of a resistance of the interconnect due to the scaling from the reference processing technology to the predetermined processing technology.
摘要:
A TEOS deposition method. A mixture of gases is introduced into a process chamber, in which the mixture of gases comprises tetra-ethyl-ortho-silicate (TEOS) and N2. Compressive stress of a TEOS oxide film is increased by activating the mixture of gases.
摘要翻译:TEOS沉积法。 将气体混合物引入处理室,其中气体混合物包括四乙基原硅酸盐(TEOS)和N 2 O 3。 通过激活气体混合物来增加TEOS氧化膜的压缩应力。