Lens structures suitable for use in image sensors and method for making the same
    3.
    发明授权
    Lens structures suitable for use in image sensors and method for making the same 有权
    适用于图像传感器的镜头结构及其制作方法

    公开(公告)号:US07443005B2

    公开(公告)日:2008-10-28

    申请号:US10982978

    申请日:2004-11-05

    IPC分类号: H01L29/78

    摘要: An image sensor includes a double-microlens structure with an outer microlens aligned over an inner microlens, both microlenses aligned over a corresponding photosensor. The inner or outer microlens may be formed by a silylation process in which a reactive portion of a photoresist material reacts with a silicon-containing agent. The inner or outer microlens may be formed by step etching of a dielectric material, the step etching process including a series of alternating etch steps including an anisotropic etching step and an etching step that causes patterned photoresist to laterally recede. Subsequent isotropic etching processes may be used to smooth the etched step structure and form a smooth lens. A thermally stable and photosensitive polymeric/organic material may also be used to form permanent inner or outer lenses. The photosensitive material is coated then patterned using photolithography, reflowed, then cured to form a permanent lens structure.

    摘要翻译: 图像传感器包括双微透镜结构,其外部微透镜在内部微透镜上对准,两个微透镜在相应的光电传感器上对准。 内部或外部微透镜可以通过甲硅烷基化方法形成,其中光致抗蚀剂材料的反应性部分与含硅试剂反应。 内部或外部微透镜可以通过介电材料的步骤蚀刻形成,该步骤蚀刻工艺包括一系列交替蚀刻步骤,其包括各向异性蚀刻步骤和使图案化光致抗蚀剂横向后退的蚀刻步骤。 可以使用随后的各向同性蚀刻工艺来平滑蚀刻的台阶结构并形成光滑的透镜。 热稳定和感光的聚合物/有机材料也可用于形成永久的内镜片或外镜片。 感光材料被涂覆,然后使用光刻图案化,回流,然后固化以形成永久性透镜结构。

    Novel process for erase improvement in a non-volatile memory device
    6.
    发明申请
    Novel process for erase improvement in a non-volatile memory device 有权
    用于擦除非易失性存储器件中的擦除的新方法

    公开(公告)号:US20060170029A1

    公开(公告)日:2006-08-03

    申请号:US11045850

    申请日:2005-01-28

    IPC分类号: H01L29/788

    摘要: A method of making embedded non-volatile memory devices includes forming a first mask layer overlying a polycrystalline silicon layer in a cell region and a peripheral region on a semiconductor substrate wherein the first mask layer has a plurality of openings in the cell region. Portions of the polycrystalline silicon layer exposed in the plurality of openings can be oxidized to form a plurality of poly-oxide regions, and the first mask layer can then be removed. The polycrystalline silicon layer not covered by the plurality of poly-oxide regions can be etched to form a plurality of floating gates, wherein etching the polycrystalline silicon layer is accompanied by a sputtering. A dielectric layer can then be formed, as well as a second mask layer in both the cell region and the peripheral region. The second mask layer in the cell region is partially etched back after a photoresist layer is formed over the second mask layer in the peripheral region. The dielectric layer is partially etched to form multiple thicknesses of the dielectric layer. The second mask layer is removed and a plurality of control gates are formed partially overlying the plurality of floating gates in the cell region.

    摘要翻译: 一种制造嵌入式非易失性存储器件的方法包括形成覆盖单元区域中的多晶硅层的第一掩模层和半导体衬底上的外围区域,其中第一掩模层在单元区域中具有多个开口。 在多个开口中暴露的多晶硅层的一部分可以被氧化以形成多个多晶氧化物区域,然后可以去除第一掩模层。 可以蚀刻不被多个多晶氧化物区域覆盖的多晶硅层以形成多个浮栅,其中蚀刻多晶硅层伴随着溅射。 然后可以形成电介质层,以及在电池区域和周边区域中形成第二掩模层。 在周边区域中的第二掩模层上形成光致抗蚀剂层之后,单元区域中的第二掩模层被部分地回蚀。 电介质层被部分蚀刻以形成介电层的多个厚度。 去除第二掩模层,并且多个控制栅极部分地覆盖在单元区域中的多个浮动栅极上。

    Process for erase improvement in a non-volatile memory device
    7.
    发明授权
    Process for erase improvement in a non-volatile memory device 有权
    在非易失性存储器件中擦除改进的过程

    公开(公告)号:US07297598B2

    公开(公告)日:2007-11-20

    申请号:US11045850

    申请日:2005-01-28

    IPC分类号: H01L21/8247

    摘要: A method of making embedded non-volatile memory devices includes forming a first mask layer overlying a polycrystalline silicon layer in a cell region and a peripheral region on a semiconductor substrate wherein the first mask layer has a plurality of openings in the cell region. Portions of the polycrystalline silicon layer exposed in the plurality of openings can be oxidized to form a plurality of poly-oxide regions, and the first mask layer can then be removed. The polycrystalline silicon layer not covered by the plurality of poly-oxide regions can be etched to form a plurality of floating gates, wherein etching the polycrystalline silicon layer is accompanied by a sputtering. A dielectric layer can then be formed, as well as a second mask layer in both the cell region and the peripheral region. The second mask layer in the cell region is partially etched back after a photoresist layer is formed over the second mask layer in the peripheral region. The dielectric layer is partially etched to form multiple thicknesses of the dielectric layer. The second mask layer is removed and a plurality of control gates are formed partially overlying the plurality of floating gates in the cell region.

    摘要翻译: 一种制造嵌入式非易失性存储器件的方法包括形成覆盖单元区域中的多晶硅层的第一掩模层和半导体衬底上的外围区域,其中第一掩模层在单元区域中具有多个开口。 在多个开口中暴露的多晶硅层的一部分可以被氧化以形成多个多晶氧化物区域,然后可以去除第一掩模层。 可以蚀刻不被多个多晶氧化物区域覆盖的多晶硅层以形成多个浮栅,其中蚀刻多晶硅层伴随着溅射。 然后可以形成电介质层,以及在电池区域和周边区域中形成第二掩模层。 在周边区域中的第二掩模层上形成光致抗蚀剂层之后,单元区域中的第二掩模层被部分地回蚀。 电介质层被部分蚀刻以形成介电层的多个厚度。 去除第二掩模层,并且多个控制栅极部分地覆盖在单元区域中的多个浮动栅极上。

    Methods for fabricating image sensor devices
    8.
    发明授权
    Methods for fabricating image sensor devices 有权
    图像传感器装置的制造方法

    公开(公告)号:US07883926B2

    公开(公告)日:2011-02-08

    申请号:US12710441

    申请日:2010-02-23

    IPC分类号: H01L21/00

    摘要: Image sensor devices and methods for fabricating the same are provided. An exemplary embodiment of an image sensor device comprises a support substrate. A passivation structure is formed over the support substrate. An interconnect structure is formed over the passivation structure. A first semiconductor layer is formed over the interconnect structure, having a first and second surfaces, wherein the first and second surfaces are opposing surfaces. At least one light-sensing device is formed over/in the first semiconductor layer from a first surface thereof. A color filter layer is formed over the first semiconductor layer from a second surface thereof. At least one micro lens is formed over the color filter layer.

    摘要翻译: 提供了图像传感器装置及其制造方法。 图像传感器装置的示例性实施例包括支撑衬底。 在支撑衬底上形成钝化结构。 在钝化结构上形成互连结构。 第一半导体层形成在互连结构上,具有第一和第二表面,其中第一和第二表面是相对的表面。 至少一个感光装置从其第一表面形成在第一半导体层之上/之中。 滤色器层从其第二表面形成在第一半导体层上。 在滤色器层上形成至少一个微透镜。

    Methods for fabricating image sensor devices
    9.
    发明授权
    Methods for fabricating image sensor devices 有权
    图像传感器装置的制造方法

    公开(公告)号:US07709872B2

    公开(公告)日:2010-05-04

    申请号:US11531290

    申请日:2006-09-13

    IPC分类号: H01L31/0232

    摘要: Image sensor devices and methods for fabricating the same are provided. An exemplary embodiment of an image sensor device comprises a support substrate. A passivation structure is formed over the support substrate. An interconnect structure is formed over the passivation structure. A first semiconductor layer is formed over the interconnect structure, having a first and second surfaces, wherein the first and second surfaces are opposing surfaces. At least one light-sensing device is formed over/in the first semiconductor layer from a first surface thereof. A color filter layer is formed over the first semiconductor layer from a second surface thereof. At least one micro lens is formed over the color filter layer.

    摘要翻译: 提供了图像传感器装置及其制造方法。 图像传感器装置的示例性实施例包括支撑衬底。 在支撑衬底上形成钝化结构。 在钝化结构上形成互连结构。 第一半导体层形成在互连结构上,具有第一和第二表面,其中第一和第二表面是相对的表面。 至少一个感光装置从其第一表面形成在第一半导体层之上/之中。 滤色器层从其第二表面形成在第一半导体层上。 在滤色器层上形成至少一个微透镜。

    METHODS OF AVOIDING WAFER BREAKAGE DURING MANUFACTURE OF BACKSIDE ILLUMINATED IMAGE SENSORS
    10.
    发明申请
    METHODS OF AVOIDING WAFER BREAKAGE DURING MANUFACTURE OF BACKSIDE ILLUMINATED IMAGE SENSORS 审中-公开
    在背光照明图像传感器制造过程中避免浪涌破裂的方法

    公开(公告)号:US20080044984A1

    公开(公告)日:2008-02-21

    申请号:US11465047

    申请日:2006-08-16

    IPC分类号: H01L21/30 H01L21/46

    摘要: A process for forming backside illuminated devices is disclosed. Specifically, the process reduces processing damage to wafers caused by poor bond quality at the wafer edge ring. In one embodiment, a wafer edge trimming step is implemented prior to bonding the wafer to the substrate. A pre-grind blade is used to create a straight edge around the wafer perimeter, eliminating any sharp edges. In another embodiment, edge trimming is performed after the wafer has been bonded to the substrate, and a pre-grind blade is used to remove portion of the wafer edge ring subject to poor bonding quality before grinding. The final thickness of the ground wafer is about 50 microns in either case.

    摘要翻译: 公开了一种用于形成背面照明装置的工艺。 具体地说,该方法减少了由于晶片边缘环上的接合质量差而导致的对晶片的加工损坏。 在一个实施例中,在将晶片接合到基板之前实现晶片边缘修剪步骤。 预磨刀片用于在晶片周边周围创建直边,消除任何尖锐边缘。 在另一个实施例中,在晶片已经结合到基板之后进行边缘修整,并且在研磨之前使用预研磨刀片来去除在接合质量差的条件下的部分晶片边缘环。 在任一情况下,接地晶片的最终厚度为约50微米。