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    • 5. 发明申请
    • Method for forming barrier layer
    • 形成阻挡层的方法
    • US20070105367A1
    • 2007-05-10
    • US11646387
    • 2006-12-28
    • Yu-Ru YangChien-Chung Huang
    • Yu-Ru YangChien-Chung Huang
    • H01L21/4763
    • H01L21/76844H01L21/2855H01L21/76846H01L21/76862
    • A method for forming barrier layers comprises steps of providing a conductive layer, forming a first dielectric layer on the conductive layer, the first dielectric layer having a via therein, forming a first metal layer covering the first dielectric layer and the conductive layer, forming a layer of metallized materials on the first metal layer, removing the layer of metallized materials above the via bottom in the first dielectric layer, and leaving the layer of metallized materials remaining on a sidewall of the via in the first dielectric layer; and forming a second metal layer covering the layer of metallized materials. The accomplished barrier layers will have lower resistivity in the bottom via of the first dielectric layer and they are capable of preventing copper atoms from diffusing into the dielectric layer.
    • 形成阻挡层的方法包括以下步骤:提供导电层,在导电层上形成第一介电层,第一介电层在其中具有通孔,形成覆盖第一介电层和导电层的第一金属层,形成 在第一金属层上的金属化材料层,去除第一介电层中的通孔底部上方的金属化材料层,并将金属化材料层留在第一介电层中的通孔的侧壁上; 以及形成覆盖所述金属化材料层的第二金属层。 完成的阻挡层在第一介电层的底部通孔中将具有较低的电阻率,并且它们能够防止铜原子扩散到电介质层中。
    • 6. 发明授权
    • Damascene structure
    • 大马士革结构
    • US08587128B2
    • 2013-11-19
    • US13397833
    • 2012-02-16
    • Yu-Ru YangChien-Chung Huang
    • Yu-Ru YangChien-Chung Huang
    • H01L23/48
    • H01L21/2855H01L21/76844H01L21/76846
    • A damascene structure includes a conductive layer, a first dielectric layer, a first barrier metal layer, a barrier layer, and a second barrier metal layer sequentially formed on the conductive layer. The first dielectric layer having a via therein. The barrier layer is comprised of a material different with that of the first barrier metal layer. A bottom of the barrier layer disposed on the via bottom is not punched through. The accomplished barrier layers will have lower resistivity on the via bottom in the first dielectric layer and they are capable of preventing copper atoms from diffusing into the dielectric layer.
    • 镶嵌结构包括依次形成在导电层上的导电层,第一介电层,第一阻挡金属层,阻挡层和第二阻挡金属层。 第一电介质层中具有通孔。 阻挡层由与第一阻挡金属层不同的材料构成。 设置在通孔底部上的阻挡层的底部不穿孔。 完成的阻挡层在第一介电层中的通孔底部具有较低的电阻率,并且它们能够防止铜原子扩散到电介质层中。
    • 7. 发明授权
    • Method for forming barrier layer
    • 形成阻挡层的方法
    • US07645698B2
    • 2010-01-12
    • US11646387
    • 2006-12-28
    • Yu-Ru YangChien-Chung Huang
    • Yu-Ru YangChien-Chung Huang
    • H01L21/4763
    • H01L21/76844H01L21/2855H01L21/76846H01L21/76862
    • A method for forming barrier layers comprises steps of providing a conductive layer, forming a first dielectric layer on the conductive layer, the first dielectric layer having a via therein, forming a first metal layer covering the first dielectric layer and the conductive layer, forming a layer of metallized materials on the first metal layer, removing the layer of metallized materials above the via bottom in the first dielectric layer, and leaving the layer of metallized materials remaining on a sidewall of the via in the first dielectric layer; and forming a second metal layer covering the layer of metallized materials. The accomplished barrier layers will have lower resistivity in the bottom via of the first dielectric layer and they are capable of preventing copper atoms from diffusing into the dielectric layer.
    • 形成阻挡层的方法包括以下步骤:提供导电层,在导电层上形成第一介电层,第一介电层在其中具有通孔,形成覆盖第一介电层和导电层的第一金属层,形成 在第一金属层上的金属化材料层,去除第一介电层中的通孔底部上方的金属化材料层,并将金属化材料层留在第一介电层中的通孔的侧壁上; 以及形成覆盖所述金属化材料层的第二金属层。 完成的阻挡层在第一介电层的底部通孔中将具有较低的电阻率,并且它们能够防止铜原子扩散到电介质层中。
    • 8. 发明授权
    • Barrier layer structure
    • 阻隔层结构
    • US07199040B2
    • 2007-04-03
    • US10841562
    • 2004-05-10
    • Yu-Ru YangChien-Chung Huang
    • Yu-Ru YangChien-Chung Huang
    • H01L21/461H01L21/302
    • H01L21/76844H01L21/2855H01L21/76846H01L21/76862
    • A barrier layer structure includes a first dielectric layer forming on a conductive layer and having a via being formed in the first dielectric layer, wherein the via in the first dielectric layer is connected to the conductive layer. A first metal layer is steppedly covered on the first dielectric layer. A layer of metallized materials is steppedly covered on the first metal layer, but the layer of metallized materials does not cover the first metal layer above the via bottom connected to the conductive layer in the dielectric layer. A second metal layer is steppedly covered on the layer of metallized materials, and the second metal layer is covered the first metal layer above the via bottom connected to the conductive layer in the dielectric layer. The barrier layer structure will have lower resistivity in the bottom via of the first dielectric layer and it is capable of preventing copper atoms from diffusing into the dielectric layer.
    • 阻挡层结构包括在导电层上形成的第一介电层,并且在第一介电层中形成通孔,其中第一介电层中的通孔连接到导电层。 第一金属层被阶梯式地覆盖在第一介电层上。 金属化材料层被阶梯式地覆盖在第一金属层上,但是金属化材料层不覆盖连接到电介质层中的导电层的通孔底部上的第一金属层。 第二金属层被阶梯式地覆盖在金属化材料层上,并且第二金属层覆盖连接到电介质层中的导电层的通孔底部上的第一金属层。 阻挡层结构在第一电介质层的底部通孔中具有较低的电阻率,并且能够防止铜原子扩散到电介质层中。