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    • 4. 发明申请
    • PHOTORESIST DOUBLE PATTERNING
    • 摄影师双重图案
    • WO2009085598A3
    • 2009-09-11
    • PCT/US2008086095
    • 2008-12-09
    • LAM RES CORPSADJADI S M REZAROMANO ANDREW R
    • SADJADI S M REZAROMANO ANDREW R
    • H01L21/027H01L21/3065
    • G03F7/40G03F7/0035G03F7/405H01L21/76816
    • A method for etching an etch layer formed on a substrate is provided. A first photoresist (PR) mask with first mask features is provided on the etch layer. A protective coating is provided on the first PR mask by a process including at least one cycle. Each cycle includes (a) a deposition phase for depositing a deposition layer over the surface of the first mask features using a deposition gas, and (b) a profile shaping phase for shaping the profile of the deposition layer using a profile shaping gas. A liquid PR material is applied over the first PR mask having the protective coating. The PR material is patterned into a second mask features, where the first and second mask features form a second PR mask. The etch layer is etched though the second PR mask.
    • 提供了蚀刻形成在基板上的蚀刻层的方法。 在蚀刻层上提供具有第一掩模特征的第一光致抗蚀剂(PR)掩模。 通过包括至少一个循环的工艺在第一PR掩模上提供保护涂层。 每个循环包括(a)用于使用沉积气体在第一掩模特征的表面上沉积沉积层的沉积阶段,以及(b)用于使用轮廓成形气体成形沉积层的轮廓的轮廓成形阶段。 在具有保护涂层的第一PR掩模上施加液体PR材料。 PR材料被图案化成第二掩模特征,其中第一和第二掩模特征形成第二PR掩模。 通过第二PR掩模蚀刻蚀刻层。
    • 5. 发明申请
    • ETCH WITH HIGH ETCH RATE RESIST MASK
    • 具有高耐蚀性面漆的ETCH
    • WO2009085564A4
    • 2009-11-26
    • PCT/US2008085751
    • 2008-12-05
    • LAM RES CORPROMANO ANDREW RSADJADI REZA S M
    • ROMANO ANDREW RSADJADI REZA S M
    • H01L21/027H01L21/3065
    • H01L21/31144G03F7/40H01L21/0337H01L21/0338H01L21/32139
    • A method for etching features into an etch layer is provided. A patterned mask is formed over the etch layer, wherein the patterned mask is of a high etch rate photoresist material, wherein the patterned mask has patterned mask features. A protective layer is deposited on the patterned mask of high etch rate photoresist material by performing a cyclical deposition, wherein each cycle, comprises a depositing phase for depositing a deposition layer over the exposed surfaces, including sidewalls of the patterned mask of high etch rate photoresist material and a profile shaping phase for providing vertical sidewalls. Features are etched into the etch layer using the protective layer as a mask. The protective layer is removed.
    • 提供了将特征蚀刻到蚀刻层中的方法。 图案化掩模形成在蚀刻层上,其中图案化掩模是高蚀刻速率光致抗蚀剂材料,其中图案化掩模具有图案化掩模特征。 通过执行循环沉积,保护层沉积在高蚀刻速率光致抗蚀剂材料的图案化掩模上,其中每个循环包括沉积相,用于在暴露表面上沉积沉积层,包括高蚀刻速率光致抗蚀剂的图案化掩模的侧壁 材料和用于提供垂直侧壁的轮廓成形阶段。 使用保护层作为掩模将特征蚀刻到蚀刻层中。 保护层被去除。
    • 6. 发明申请
    • ETCH WITH HIGH ETCH RATE RESIST MASK
    • 用高蚀刻速率抗蚀剂掩模蚀刻
    • WO2009085564A3
    • 2009-10-01
    • PCT/US2008085751
    • 2008-12-05
    • LAM RES CORPROMANO ANDREW RSADJADI REZA S M
    • ROMANO ANDREW RSADJADI REZA S M
    • H01L21/027H01L21/3065
    • H01L21/31144G03F7/40H01L21/0337H01L21/0338H01L21/32139
    • A method for etching features into an etch layer is provided. A patterned mask is formed over the etch layer, wherein the patterned mask is of a high etch rate photoresist material, wherein the patterned mask has patterned mask features. A protective layer is deposited on the patterned mask of high etch rate photoresist material by performing a cyclical deposition, wherein each cycle, comprises a depositing phase for depositing a deposition layer over the exposed surfaces, including sidewalls of the patterned mask of high etch rate photoresist material and a profile shaping phase for providing vertical sidewalls. Features are etched into the etch layer using the protective layer as a mask. The protective layer is removed.
    • 提供了将特征蚀刻到蚀刻层中的方法。 在蚀刻层上形成图案化掩模,其中图案化掩模是高蚀刻速率光刻胶材料,其中图案化掩模具有图案化掩模特征。 通过执行循环沉积,在高蚀刻速率光致抗蚀剂材料的图案化掩模上沉积保护层,其中每个循环包括用于在暴露表面(包括高蚀刻速率光致抗蚀剂图案化掩模的侧壁)上沉积沉积层的沉积阶段 材料和用于提供垂直侧壁的轮廓成形阶段。 使用保护层作为掩模将特征蚀刻到蚀刻层中。 保护层被移除。