Self-aligned pitch reduction
    11.
    发明授权
    Self-aligned pitch reduction 有权
    自对准螺距减小

    公开(公告)号:US07390749B2

    公开(公告)日:2008-06-24

    申请号:US11558238

    申请日:2006-11-09

    IPC分类号: H01L21/311

    摘要: A method for providing features in an etch layer with a memory region and a peripheral region is provided. A memory patterned mask is formed over a first sacrificial layer. A first set of sacrificial layer features is etched into the first sacrificial layer and a second sacrificial layer. Features of the first set of sacrificial layer features are filled with filler material. The first sacrificial layer is removed. The spaces are shrunk with a shrink sidewall deposition. A second set of sacrificial layer features is etched into the second sacrificial layer. The filler material and shrink sidewall deposition are removed. A peripheral patterned mask is formed over the memory region and peripheral region. The second sacrificial layer is etched through the peripheral patterned mask. The peripheral patterned mask is removed. Features are etched into the etch layer from the second sacrificial layer.

    摘要翻译: 提供了一种用于在具有存储区域和周边区域的蚀刻层中提供特征的方法。 存储器图案化掩模形成在第一牺牲层上。 第一组牺牲层特征被蚀刻到第一牺牲层和第二牺牲层中。 第一组牺牲层特征的特征填充有填充材料。 第一牺牲层被去除。 这些空间随着收缩侧壁沉积而收缩。 第二组牺牲层特征被蚀刻到第二牺牲层中。 去除填充材料和收缩侧壁沉积。 在存储器区域和外围区域上形成周边图案化掩模。 通过外围图案化掩模蚀刻第二牺牲层。 去除周边图案掩模。 特征从第二牺牲层蚀刻到蚀刻层中。

    GLUE LAYER FOR HYDROFLUOROCARBON ETCH
    12.
    发明申请
    GLUE LAYER FOR HYDROFLUOROCARBON ETCH 有权
    石油醚水合物

    公开(公告)号:US20080146032A1

    公开(公告)日:2008-06-19

    申请号:US11610953

    申请日:2006-12-14

    IPC分类号: H01L21/3105

    摘要: A method for etching features in an etch layer disposed below a mask on a process wafer is provided. A hydrocarbon based glue layer is deposited. The etch layer on the process wafer is etched with at least one cycle, wherein each cycle comprises depositing a hydrofluorocarbon layer over the mask and on the hydrocarbon based glue layer, wherein the hydrocarbon based glue layer increases adhesion of the hydrofluorocarbon layer and etching the etch layer.

    摘要翻译: 提供了一种用于蚀刻设置在处理晶片上的掩模下方的蚀刻层中的特征的方法。 沉积烃基胶层。 用至少一个循环蚀刻处理晶片上的蚀刻层,其中每个循环包括在掩模上和基于烃的胶层上沉积氢氟烃层,其中基于烃的胶层增加氢氟烃层的粘附和蚀刻蚀刻 层。

    Treatment for corrosion in substrate processing
    13.
    发明授权
    Treatment for corrosion in substrate processing 有权
    处理基板加工腐蚀

    公开(公告)号:US07084070B1

    公开(公告)日:2006-08-01

    申请号:US10623016

    申请日:2003-07-17

    IPC分类号: H01L21/461 H01L21/302

    摘要: A method for processing substrate to form a semiconductor device is disclosed. The substrate includes an etch stop layer disposed above a metal layer. The method includes etching through the etch stop layer down to the copper metal layer, using a plasma etch process that utilizes a chlorine-containing etchant source gas, thereby forming etch stop layer openings in the etch stop layer. The etch stop layer includes at least one of a SiN and SiC material. Thereafter, the method includes performing a wet treatment on the substrate using a solution that contains acetic acid (CH3COOH) or acetic acid/ammonium hydroxide (NH4OH) to remove at least some of the copper oxides. Alternatively, the copper oxides may be removed using a H2 plasma. BTA passivation may be optionally performed on the substrate.

    摘要翻译: 公开了一种用于处理基板以形成半导体器件的方法。 衬底包括设置在金属层上方的蚀刻停止层。 该方法包括使用利用含氯蚀刻剂源气体的等离子体蚀刻工艺将蚀刻停止层蚀刻到铜金属层下方,从而在蚀刻停止层中形成蚀刻停止层开口。 蚀刻停止层包括SiN和SiC材料中的至少一种。 此后,该方法包括使用含有乙酸(CH 3 COOH)或乙酸/氢氧化铵(NH 4 OH)的溶液对底物进行湿处理至 去除至少一些铜氧化物。 或者,可以使用H 2 O 3等离子体去除铜氧化物。 可以任选地在衬底上进行BTA钝化。

    Infinitely selective photoresist mask etch
    14.
    发明授权
    Infinitely selective photoresist mask etch 有权
    无限选择性光刻胶掩模蚀刻

    公开(公告)号:US07910489B2

    公开(公告)日:2011-03-22

    申请号:US11357548

    申请日:2006-02-17

    IPC分类号: H01L21/302

    CPC分类号: H01L21/31116 H01L21/30655

    摘要: A method for etching features into an etch layer disposed below a photoresist mask without an intermediate hardmask is provided. A plurality of etch cycles are provided. Each etch cycle comprises providing a deposition etch phase that etches features into the etch layer and deposits polymer on sidewalls of the features and over the photoresist and providing a cleaning phase that removes polymer deposited on the sidewalls.

    摘要翻译: 提供了一种用于将特征蚀刻到设置在光刻胶掩模下方而不具有中间硬掩模的蚀刻层中的方法。 提供多个蚀刻循环。 每个蚀刻循环包括提供沉积蚀刻阶段,其将特征蚀刻到蚀刻层中并将聚合物沉积在特征的侧壁上并在光致抗蚀剂上方,并提供去除沉积在侧壁上的聚合物的清洁相。

    Reduction of feature critical dimensions
    15.
    发明授权
    Reduction of feature critical dimensions 有权
    减少功能关键尺寸

    公开(公告)号:US07250371B2

    公开(公告)日:2007-07-31

    申请号:US10648953

    申请日:2003-08-26

    IPC分类号: H01L21/311

    摘要: A feature in a layer is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls, where the photoresist features have a first critical dimension. A conformal layer is deposited over the sidewalls of the photoresist features to reduce the critical dimensions of the photoresist features. Features are etched into the layer, wherein the layer features have a second critical dimension, which is less than the first critical dimension.

    摘要翻译: 提供了一个图层中的一个特征。 在该层上形成光致抗蚀剂层。 光致抗蚀剂层被图案化以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征,其中光致抗蚀剂特征具有第一临界尺寸。 在光致抗蚀剂特征的侧壁上沉积保形层以减少光致抗蚀剂特征的临界尺寸。 将特征蚀刻到层中,其中层特征具有小于第一临界尺寸的第二临界尺寸。

    Etch with photoresist mask
    17.
    发明授权
    Etch with photoresist mask 失效
    刻蚀光刻胶掩模

    公开(公告)号:US07442649B2

    公开(公告)日:2008-10-28

    申请号:US11094559

    申请日:2005-03-29

    IPC分类号: H01L21/302 H01L21/461

    CPC分类号: H01L21/31116

    摘要: A method for etching a dielectric layer over a substrate is provided. A photoresist mask is formed over the dielectric layer. The substrate is placed in a plasma processing chamber. An etchant gas comprising NF3 is provided into the plasma chamber. A plasma is formed from the NF3 gas. The dielectric layer is etched through the photoresist mask with the plasma from the NF3 gas.

    摘要翻译: 提供了一种在衬底上蚀刻电介质层的方法。 在电介质层上形成光致抗蚀剂掩模。 将基板放置在等离子体处理室中。 包含NF 3 N的蚀刻剂气体被提供到等离子体室中。 从NF 3 N气体形成等离子体。 通过来自NF 3 N 3气体的等离子体通过光致抗蚀剂掩模蚀刻电介质层。

    Self-aligned pitch reduction
    18.
    发明申请
    Self-aligned pitch reduction 有权
    自对准螺距减小

    公开(公告)号:US20070123053A1

    公开(公告)日:2007-05-31

    申请号:US11291303

    申请日:2005-11-30

    IPC分类号: H01L21/302

    CPC分类号: H01L21/0338

    摘要: A method providing features in a dielectric layer is provided. A sacrificial layer is formed over the dielectric layer. A set of sacrificial layer features is etched into the sacrificial layer. A first set of dielectric layer features is etched into the dielectric layer through the sacrificial layer. The first set of dielectric layer features and the set of sacrificial layer features are filled with a filler material. The sacrificial layer is removed. The widths of the spaces between the parts of the filler material are shrunk with a shrink sidewall deposition. A second set of dielectric layer features is etched into the dielectric layer through the shrink sidewall deposition. The filler material and shrink sidewall deposition are removed.

    摘要翻译: 提供了一种在电介质层中提供特征的方法。 在电介质层上形成牺牲层。 一组牺牲层特征被蚀刻到牺牲层中。 通过牺牲层将介电层特征的第一组蚀刻到介电层中。 第一组介电层特征和一组牺牲层特征用填充材料填充。 牺牲层被去除。 填充材料的各部分之间的间隙的宽度随收缩侧壁沉积而收缩。 通过收缩侧壁沉积将第二组介电层特征蚀刻到介电层中。 去除填充材料和收缩侧壁沉积。

    Etch with photoresist mask
    19.
    发明申请
    Etch with photoresist mask 失效
    刻蚀光刻胶掩模

    公开(公告)号:US20060223327A1

    公开(公告)日:2006-10-05

    申请号:US11094559

    申请日:2005-03-29

    IPC分类号: H01L21/302 H01L21/461

    CPC分类号: H01L21/31116

    摘要: A method for etching a dielectric layer over a substrate is provided. A photoresist mask is formed over the dielectric layer. The substrate is placed in a plasma processing chamber. An etchant gas comprising NF3 is provided into the plasma chamber. A plasma is formed from the NF3 gas. The dielectric layer is etched through the photoresist mask with the plasma from the NF3 gas.

    摘要翻译: 提供了一种在衬底上蚀刻电介质层的方法。 在电介质层上形成光致抗蚀剂掩模。 将基板放置在等离子体处理室中。 包含NF 3 N的蚀刻剂气体被提供到等离子体室中。 从NF 3 N气体形成等离子体。 通过来自NF 3 N 3气体的等离子体通过光致抗蚀剂掩模蚀刻电介质层。