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 plasma treatment method which is capable of extending the MTF (mean-time-to-failure) of metal interconnects fabricated on a semiconductor wafer substrate, is disclosed. The invention includes providing a trench typically in a dielectric layer on a substrate; depositing a metal in the trench; and exposing the metal to a nitrogen-based plasma. The plasma-treatment step accelerates grain growth and re-orients the grains in the metal to a closely-packed crystal orientation texture which approaches or approximates the crystal orientation texture of copper.
摘要:
A shallow trench isolation (STI) structure for semiconductor devices is formed using a deposited silicon layer formed over a polish stop layer formed over an oxide formed on a substrate. The polish stop layer may be nitride. An opening is formed extending through the deposited silicon layer and the nitride and oxide layers and extending into the substrate. A deposited oxide is formed filling the opening and extending over the top surface of deposited silicon layer. A chemical mechanical polishing operation polishes the deposited silicon layer at a rate faster than the deposited oxide layer to produce an STI with a convex portion extending above the nitride layer. Dishing problems are avoided and the structure may be subsequently planarized.
摘要:
A semiconductor structure and method for dissipating heat away from a semiconductor device having a plurality of power lines is provided. The semiconductor structure includes a semiconductor substrate and a plurality of interconnect structures disposed on the substrate and in contact therewith and extending through the semiconductor device, the interconnect structures for dissipating heat to the substrate. Each of the plurality of interconnect structures comprises at least one via stack.
摘要:
A plasma treatment method which is capable of extending the MTF (mean-time-to-failure) of metal interconnects fabricated on a semiconductor wafer substrate, is disclosed. The invention includes providing a trench typically in a dielectric layer on a substrate; depositing a metal in the trench; and exposing the metal to a nitrogen-based plasma. The plasma-treatment step accelerates grain growth and re-orients the grains in the metal to a closely-packed crystal orientation texture which approaches or approximates the crystal orientation texture of copper.
摘要:
A method for capping over a copper layer. A copper layer is deposited overlying a substrate. The copper surface is treated with hydrogen-containing plasma to remove copper oxides formed thereon, thereby suppressing copper hillock formation. The treated copper surface is treated again with nitrogen-containing plasma to improve adhesion of the copper surface. A capping layer is formed on the copper layer.
摘要:
A method of removing residual fluorine present in a HDP-CVD chamber which includes a high pressure seasoning process, a dry-cleaning process, and a low-pressure deposition process.
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:
Packaged devices and methods of forming packaged devices are provided. At least one device is disposed on a substrate. The material layer encapsulates the device and covers at least a portion of the substrate, wherein the material layer comprises at least a first portion adjacent to the device and a second portion over the first portion. The second portion has a thermal conductivity higher than a thermal conductivity of the first portion.
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。