摘要:
A method of forming a low-k dielectric material layer comprising the following steps. A first dielectric material sub-layer is formed over a substrate. The first dielectric material sub-layer is treated with an energy treatment to form a hardened layer on the upper surface of the first dielectric material sub-layer. A second dielectric material sub-layer is formed over the hardened layer, wherein the first dielectric sub-layer, the hardened layer and the second dielectric sub-layer comprise the low-k dielectric material layer. And a dual damascene structure and a dielectric material structure formed thereby.
摘要:
A method of forming a low-k dielectric material layer comprising the following steps. A first dielectric material sub-layer is formed over a substrate. The first dielectric material sub-layer is treated with an energy treatment to form a hardened layer on the upper surface of the first dielectric material sub-layer. A second dielectric material sub-layer is formed over the hardened layer, wherein the first dielectric sub-layer, the hardened layer and the second dielectric sub-layer comprise the low-k dielectric material layer. And a dual damascene structure and a dielectric material structure formed thereby.
摘要:
A method of protecting a low k dielectric layer that is preferably comprised of a material containing Si, O, C, and H is described. The dielectric layer is subjected to a gas plasma that is generated from a CXHY gas which is preferably ethylene. Optionally, hydrogen may be added to the CXHY gas. Another alternative is a two step plasma process involving a first plasma treatment of CXHY or CXHY combined with H2 and a second plasma treatment with H2. The modified dielectric layer provides improved adhesion to anti-reflective layers and to a barrier metal layer in a damascene process. The modified dielectric layer also has a low CMP rate that prevents scratch defects and an oxide recess from occurring next to the metal layer on the surface of the damascene stack. The plasma treatments are preferably done in the same chamber in which the dielectric layer is deposited.
摘要翻译:描述了保护低k电介质层的方法,其优选由含有Si,O,C和H的材料组成。 对电介质层进行气化等离子体,该等离子体是由优选乙烯的C X H Y气产生的。 任选地,可以将氢气加入到C 1 H 2 H 2 O气体中。 另一种替代方案是涉及第一等离子体处理C X> Y Y or SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB >与H 2 H 2结合,并且与H 2 2进行第二等离子体处理。 改进的介电层在镶嵌工艺中提供对抗反射层和阻挡金属层的改善的粘合性。 改进的介电层也具有低CMP速率,其防止划痕缺陷和氧化物凹陷在镶嵌层的表面上邻近金属层发生。 等离子体处理优选在沉积介电层的相同的室中进行。
摘要:
A method for forming a dielectric insulating layer with a reduced dielectric constant and increased hardness for semiconductor device manufacturing including providing a semiconductor wafer having a process surface for forming a dielectric insulting layer thereover; depositing according to a CVD process a carbon doped oxide layer the CVD process including an oregano-silane precursor having Si—O groups and Si—Ry groups, where R is an alkyl or cyclo-alkyl group and y the number of R groups bonded to Si; and, exposing the carbon doped oxide layer to a hydrogen plasma treatment for a period of time thereby reducing the carbon doped oxide layer thickness including reducing the carbon doped oxide layer dielectric constant and increasing the carbon doped oxide layer hardness.
摘要:
A method of forming a low-k dielectric material layer comprising the following steps. A first dielectric material sub-layer is formed over a substrate. The first dielectric material sub-layer is treated with an energy treatment to form a hardened layer on the upper surface of the first dielectric material sub-layer. A second dielectric material sub-layer is formed over the hardened layer, wherein the first dielectric sub-layer, the hardened layer and the second dielectric sub-layer comprise the low-k dielectric material layer. And a dual damascene structure and a dielectric material structure formed thereby.
摘要:
A semiconductor device with improved resistance to delamination and method for forming the same the method including providing a semiconductor wafer comprising a metallization layer with an uppermost etch stop layer; forming at least one adhesion promoting layer on the etch stop layer; and, forming an inter-metal dielectric (IMD) layer on the at least one adhesion promoting layer.
摘要:
A semiconductor device with improved resistance to delamination and method for forming the same the method including providing a semiconductor wafer comprising a metallization layer with an uppermost etch stop layer; forming at least one adhesion promoting layer on the etch stop layer; and, forming an inter-metal dielectric (IMD) layer on the at least one adhesion promoting layer.
摘要:
The present invention provides a method of forming a semiconductor structure having an ultra low-K dielectric material that adheres well to the substrate. The method includes depositing a low-K material on the top surface of a substrate at a low temperature of no more than 250° by a CVD or spin-on process. The dielectric material is then cured by placing the substrate with the dielectric film in an environment where the temperature is regulated at about 400° or less as the dielectric film is being subjected to a plasma treatment or an E-beam treatment or UV treatment. The environment may further include one or more gases or a mixture of gases selected from the group consisting of H2, N2, NH3, CO2, all hydride gases and a mixture of these gases.
摘要:
A method for forming a protective oxide liner to reduce a surface reflectance including providing a hydrophilic insulating layer over a conductive layer; providing an anti-reflectance coating (ARC) layer over the hydrophilic insulating layer; providing an etching stop layer over the anti-reflectance coating (ARC) layer; photolithographically defining a pattern on a surface of the etching stop layer for etching; anisotropically etching at least one etch opening extending at least partially through a thickness of the hydrophilic insulating layer; depositing an oxide liner such that the sidewalls and bottom portion of the at least one etch opening and said surface are covered by the oxide liner; and, removing the oxide liner from aid surface according to a chemical mechanical (CMP) process to a surface reflectance.
摘要:
A method for preventing formation of photoresist scum. First, a substrate on which a dielectric layer is formed is provided. Next, a non-nitrogen anti-reflective layer is formed on the dielectric layer. Finally, a photoresist pattern layer is formed on the non-nitrogen anti-reflective layer. During the formation of the photoresist pattern layer, the non-nitrogen anti-reflective layer does not react with the photoresist pattern layer, thus not forming photoresist scum. This prevents undesired etching profile and critical dimension (CD) change due to presence of photoresist scum. The non-nitrogen anti-reflective layer can be silicon-rich oxide (SiOx) or hydrocarbon-containing silicon-rich oxide (SiOxCy:H).
摘要翻译:防止光刻胶浮渣形成的方法。 首先,提供形成介电层的基板。 接下来,在电介质层上形成非氮抗反射层。 最后,在非氮抗反射层上形成光刻胶图形层。 在形成光致抗蚀剂图案层期间,非氮抗反射层不与光致抗蚀剂图案层反应,因此不形成光致抗蚀剂浮渣。 这防止由于存在光致抗蚀剂浮渣而引起的不期望的蚀刻轮廓和临界尺寸(CD)变化。 非氮抗反射层可以是富氧氧化物(SiO 2)或含烃的富含氧的氧化物(SiO x x C y) SUB>:H)。