Deep ultraviolet light photoresist processing
    1.
    发明授权
    Deep ultraviolet light photoresist processing 失效
    深紫外光光刻胶加工

    公开(公告)号:US5962196A

    公开(公告)日:1999-10-05

    申请号:US135324

    申请日:1993-10-13

    IPC分类号: G03F7/004 G03F7/26 G03C5/00

    CPC分类号: G03F7/26 G03F7/0045

    摘要: Process for post exposure treatment of a latent image on a semiconductor wafer. After a deep ultraviolet (UV) photoresist has been exposed, the wafer, including the latent image in the attached photoresist, is maintained in an inert gas to protect the resist from the air atmosphere. Then the latent image is baked to stabilize the image.

    摘要翻译: 在半导体晶片上曝光后处理潜像的方法。 在暴露了深紫外线(UV)光致抗蚀剂之后,将包括附着的光致抗蚀剂中的潜像的晶片保持在惰性气体中,以保护抗蚀剂免受空气气氛的影响。 然后烘焙潜像以稳定图像。

    Reticle with structurally identical inverted phase-shifted features
    2.
    发明授权
    Reticle with structurally identical inverted phase-shifted features 失效
    具有结构相同的反相移相特征的标线片

    公开(公告)号:US5384219A

    公开(公告)日:1995-01-24

    申请号:US114953

    申请日:1993-08-31

    摘要: A phase-shifted reticle with patterns proximate each other having inverted phases for the features and phase-shifting elements, and method of fabricating the reticle. Each of the patterns and inverted patterns are structurally identical with regard to the direction of phase shift, so that any focal shift due to phase error is in the same direction for all patterns. In a preferred embodiment, the structurally identical inverted reticle is used to form an array of closely spaced contact or via openings. For a first pattern on the reticle, the feature will be the 0.degree. phase and the phase-shifting rim surrounding that feature will be the 180.degree. phase. All patterns surrounding the first pattern have phase-shifting rims of the 0.degree. phase and features of the 180.degree. phase. In this way, each pattern can form below conventional resolution features in the resist. Additionally, there will not be exposure of the regions between the closely spaced features since radiation transmitted through the closely spaced phase-shifting rims of the two patterns is 180.degree. out of phase. Also, since each pattern is structurally identical, any focal shift due to phase error is in the same direction for all patterns, so that an acceptable depth of field is maintained for a substrate exposed with the reticle.

    摘要翻译: 具有彼此相邻的图案的相移掩模版具有用于特征和相移元件的反相,以及制造掩模版的方法。 每个图案和反相图案在相移方向上在结构上是相同的,因此对于所有图案,由相位误差引起的任何焦点偏移都是相同的方向。 在优选实施例中,结构相同的相反的掩模版用于形成紧密间隔的接触或通孔的阵列。 对于标线板上的第一个图案,该特征将为0°相位,该特征周围的相移边缘将为180°相位。 围绕第一图案的所有图案都具有0°相位的相移边界和180°相位的特征。 以这种方式,每个图案可以在抗蚀剂中形成为低于常规分辨率特征。 另外,在紧密间隔的特征之间不会发生区域的曝光,因为通过两个图案的紧密间隔的相移轨道的辐射是180°异相的。 此外,由于每个图案在结构上相同,所以对于所有图案,由相位误差引起的任何焦点偏移都是相同的方向,因此对于用掩模版曝光的基底,可以保持可接受的景深。

    Method of forming an integrated circuit waveguide
    3.
    发明授权
    Method of forming an integrated circuit waveguide 失效
    形成集成电路波导的方法

    公开(公告)号:US5465860A

    公开(公告)日:1995-11-14

    申请号:US270051

    申请日:1994-07-01

    摘要: Manufacturing techniques for forming waveguide channels and devices. A trench is formed in a cladding layer through an opening in a conductive layer. The trench is then filled with an active waveguide polymer and the conductive layer is patterned such that the active waveguide polymer may be poled. Also, a trench may be isotropically etched through a cladding layer to an underlying etch stop layer. The etch stop layer is thereafter removed from within the trench region to expose a previously formed, smooth, underlying cladding layer. Finally, a waveguide formed in a cladding layer, bounded in width by an overlying barrier layer, underlies a masking layer having a gap formed therein. Within the gap, a portion of the waveguide channel along with juxtaposing sections of the barrier layer are exposed. An etch is thereafter performed to remove the portion of the waveguide polymer in the waveguide channel bounded by both the masking layer and the barrier layer. Then an alternate type of waveguide polymer is formed in the void left behind by the etched waveguide polymer in the waveguide channel. Thus, a single waveguide channel having a plurality of waveguide polymers is formed.

    摘要翻译: 用于形成波导通道和器件的制造技术。 通过导电层中的开口在包层中形成沟槽。 然后用有源波导聚合物填充沟槽,并且使导电层图案化,使得有源波导聚合物可以极化。 此外,沟槽可以通过包覆层各向同性地蚀刻到下面的蚀刻停止层。 之后,在沟槽区域内去除蚀刻停止层,以暴露先前形成的,平滑的下面的包层。 最后,形成在包覆层中的波导形成在其上形成间隙的掩模层的下面,覆盖层由覆盖的势垒层限制。 在间隙内,波导通道的一部分与阻挡层的并置部分露出。 此后进行蚀刻以去除由掩模层和阻挡层两者界定的波导通道中的波导聚合物的部分。 然后在波导通道中被蚀刻的波导聚合物留下的空隙中形成另一种类型的波导聚合物。 因此,形成具有多个波导聚合物的单个波导通道。

    Inverted phase-shifted reticle
    4.
    发明授权
    Inverted phase-shifted reticle 失效
    反相相位标线片

    公开(公告)号:US5302477A

    公开(公告)日:1994-04-12

    申请号:US933400

    申请日:1992-08-21

    摘要: A phase-shifted reticle with patterns proximate each other having inverted phases for the features and phase-shifting elements, and methods of fabricating the reticle, are disclosed. In a preferred embodiment, the inverted reticle is used to form an array of closely spaced contact or via openings. For a first pattern on the reticle, the feature will be the 0.degree. phase and the phase-shifting rim surrounding that feature will be the 180.degree. phase. All patterns surrounding the first pattern have phase-shifting rims of the 0.degree. phase and features of the 180.degree. phase. In this way, each pattern can form below conventional resolution features in the resist. Additionally, there will not be exposure of the regions between the closely spaced features since radiation transmitted through the closely spaced phase-shifting rims of the two patterns is 180.degree. out of phase.

    摘要翻译: 公开了一种具有彼此邻近的图案的相移掩模版,具有用于特征和相移元件的反相,以及制造掩模版的方法。 在优选实施例中,反相的掩模版用于形成紧密间隔的接触或通孔的阵列。 对于刻线上的第一个图案,该特征将为0度相位,并且该特征周围的相移边缘将为180度相位。 围绕第一图案的所有图案都具有0度相位和180度相位特征的移相轮缘。 以这种方式,每个图案可以在抗蚀剂中形成为低于常规分辨率特征。 另外,在紧密间隔的特征之间不会发生区域的曝光,因为通过两个图案的紧密间隔的相移轨道的辐射是相位相差180度。

    Method of making integrated circuit waveguide
    7.
    发明授权
    Method of making integrated circuit waveguide 失效
    制造集成电路波导的方法

    公开(公告)号:US5540346A

    公开(公告)日:1996-07-30

    申请号:US495988

    申请日:1995-06-28

    摘要: Manufacturing techniques for forming waveguide channels and devices. A trench is formed in a cladding layer through an opening in a conductive layer. The trench is then filled with an active waveguide polymer and the conductive layer is patterned such that the active waveguide polymer may be poled. Also, a trench may be isotropically etched through a cladding layer to an underlying etch stop layer. The etch stop layer is thereafter removed from within the trench region to expose a previously formed, smooth, underlying cladding layer. Finally, a waveguide formed in a cladding layer, bounded in width by an overlying barrier layer, underlies a masking layer having a gap formed therein. Within the gap, a portion of the waveguide channel along with juxtaposing sections of the barrier layer are exposed. An etch is thereafter performed to remove the portion of the waveguide polymer in the waveguide channel bounded by both the masking layer and the barrier layer. Then an alternate type of waveguide polymer is formed in the void left behind by the etched waveguide polymer in the waveguide channel. Thus, a single waveguide channel having a plurality of waveguide polymers is formed.

    摘要翻译: 用于形成波导通道和器件的制造技术。 通过导电层中的开口在包层中形成沟槽。 然后用有源波导聚合物填充沟槽,并且使导电层图案化,使得有源波导聚合物可以极化。 此外,沟槽可以通过包覆层各向同性地蚀刻到下面的蚀刻停止层。 之后,在沟槽区域内去除蚀刻停止层,以暴露先前形成的,平滑的下面的包层。 最后,形成在包覆层中的波导形成在其上形成间隙的掩模层的下面,覆盖层由覆盖的势垒层限制。 在间隙内,波导通道的一部分与阻挡层的并置部分露出。 此后进行蚀刻以去除由掩模层和阻挡层两者界定的波导通道中的波导聚合物的部分。 然后在波导通道中被蚀刻的波导聚合物留下的空隙中形成另一种类型的波导聚合物。 因此,形成具有多个波导聚合物的单个波导通道。

    Reticle with structurally identical inverted phase-shifted features
    8.
    发明授权
    Reticle with structurally identical inverted phase-shifted features 失效
    具有结构相同的反相移相特征的标线片

    公开(公告)号:US5348826A

    公开(公告)日:1994-09-20

    申请号:US12564

    申请日:1993-02-02

    摘要: A phase-shifted reticle with patterns proximate each other having inverted phases for the features and phase-shifting elements, and methods of fabricating the reticle. Each of the patterns and inverted patterns are structurally identical with regard to the direction of phase shift, so that any focal shift due to phase error is in the same direction for all patterns. In a preferred embodiment, the structurally identical inverted reticle is used to form an array of closely spaced contact or via openings. For a first pattern on the reticle, the feature will be the 0.degree. phase and the phase-shifting rim surrounding that feature will be the 180.degree. phase. All patterns surrounding the first pattern have phase-shifting rims of the 0.degree. phase and features of the 180.degree. phase. In this way, each pattern can form below conventional resolution features in the resist. Additionally, there will not be exposure of the regions between the closely spaced features since radiation transmitted through the closely spaced phase-shifting rims of the two patterns is 180.degree. out of phase. Also, since each pattern is structurally identical, any focal shift due to phase error is in the same direction for all patterns, so that an acceptable depth of field is maintained for a substrate exposed with the reticle.

    摘要翻译: 具有彼此相邻的图案的相移掩模版具有用于特征和相移元件的反相,以及制造掩模版的方法。 每个图案和反相图案在相移方向上在结构上是相同的,因此对于所有图案,由相位误差引起的任何焦点偏移都是相同的方向。 在优选实施例中,结构相同的相反的掩模版用于形成紧密间隔的接触或通孔的阵列。 对于标线板上的第一个图案,该特征将为0°相位,该特征周围的相移边缘将为180°相位。 围绕第一图案的所有图案都具有0°相位的相移边界和180°相位的特征。 以这种方式,每个图案可以在抗蚀剂中形成为低于常规分辨率特征。 另外,在紧密间隔的特征之间不会发生区域的曝光,因为通过两个图案的紧密间隔的相移轨道的辐射是180°异相的。 此外,由于每个图案在结构上相同,所以对于所有图案,由相位误差引起的任何焦点偏移都是相同的方向,因此对于用掩模版曝光的基底,可以保持可接受的景深。