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    Flash memory with controlled wordline width
    1.
    发明授权
    Flash memory with controlled wordline width 失效
    具有受控字线宽度的闪存

    公开(公告)号：US06653190B1

    公开(公告)日：2003-11-25

    申请号：US10023436

    申请日：2001-12-15

    申请人： Jean Y. Yang ,  Kouros Ghandehari ,  Tazrien Kamal ,  Minh Van Ngo ,  Mark T. Ramsbey ,  Dawn M. Hopper ,  Angela T. Hui ,  Scott A. Bell

    发明人： Jean Y. Yang ,  Kouros Ghandehari ,  Tazrien Kamal ,  Minh Van Ngo ,  Mark T. Ramsbey ,  Dawn M. Hopper ,  Angela T. Hui ,  Scott A. Bell

    IPC分类号： H01L21336

    CPC分类号： H01L27/11568 ,  H01L27/115

    摘要： A method of manufacturing for a MirrorBit® Flash memory includes depositing a charge-trapping material over a semiconductor substrate and implanting first and second bitlines in the semiconductor substrate. A wordline material is deposited over the charge-trapping dielectric material and a hard mask material deposited thereon. An anti-reflective coating (ARC) material is deposited on the hard mask material and a photoresist material is deposited on the ARC followed by processing the photoresist material and the ARC material to form a photomask of a patterned photoresist and a patterned ARC. The hard mask material is processed using the photomask to form a hard mask. The patterned photoresist is removed and then the patterned ARC without damaging the hard mask or the wordline material. The wordline material is processed using the hard mask to form a wordline and the hard mask is removed without damaging the wordline or the charge-trapping material.

    摘要翻译： 用于MirrorBit（闪存）闪存的制造方法包括在半导体衬底上沉积电荷捕获材料并在半导体衬底中注入第一和第二位线。 字线材料沉积在电荷俘获电介质材料上并沉积在其上的硬掩模材料。 将抗反射涂层（ARC）材料沉积在硬掩模材料上，并且将光致抗蚀剂材料沉积在ARC上，随后处理光致抗蚀剂材料和ARC材料以形成图案化光致抗蚀剂和图案化ARC的光掩模。 使用光掩模处理硬掩模材料以形成硬掩模。 去除图案化的光致抗蚀剂，然后去除图案化的ARC，而不损坏硬掩模或字线材料。 使用硬掩模处理字线材料以形成字线，并且去除硬掩模而不损坏字线或电荷捕获材料。

    Method of making memory wordline hard mask extension
    2.
    发明授权
    Method of making memory wordline hard mask extension 有权
    制作内存字线硬掩模扩展的方法

    公开(公告)号：US06479348B1

    公开(公告)日：2002-11-12

    申请号：US10109516

    申请日：2002-08-27

    申请人： Tazrien Kamal ,  Minh Van Ngo ,  Mark T. Ramsbey ,  Jeffrey Shields ,  Jean Y. Yang ,  Emmanuil Lingunis ,  Hidehiko Shiraiwa ,  Angela T. Hui

    发明人： Tazrien Kamal ,  Minh Van Ngo ,  Mark T. Ramsbey ,  Jeffrey Shields ,  Jean Y. Yang ,  Emmanuil Lingunis ,  Hidehiko Shiraiwa ,  Angela T. Hui

    IPC分类号： H01L218247

    CPC分类号： H01L27/11568 ,  H01L27/115

    摘要： A manufacturing method is provided for an integrated circuit memory with closely spaced wordlines formed by using hard mask extensions. A charge-trapping dielectric material is deposited over a semiconductor substrate and first and second bitlines are formed therein. A wordline material and a hard mask material are deposited over the wordline material. A photoresist material is deposited over the hard mask material and is processed to form a patterned photoresist material. The hard mask material is processed using the patterned photoresist material to form a patterned hard mask material. The patterned photoresist is then removed. A hard mask extension material is deposited over the wordline material and is processed to form a hard mask extension. The wordline material is processed using the patterned hard mask material and the hard mask extension to form a wordline, and the patterned hard mask material and the hard mask extension are then removed.

    摘要翻译： 提供了一种用于通过使用硬掩模延伸部形成的具有紧密间隔的字线的集成电路存储器的制造方法。 在半导体衬底上沉积电荷俘获电介质材料，并在其中形成第一和第二位线。 字线材料和硬掩模材料沉积在字线材料上。 光致抗蚀剂材料沉积在硬掩模材料上并被处理以形成图案化的光致抗蚀剂材料。 使用图案化的光致抗蚀剂材料处理硬掩模材料以形成图案化的硬掩模材料。 然后去除图案化的光致抗蚀剂。 硬掩模延伸材料沉积在字线材料上并被处理以形成硬掩模延伸部。 使用图案化的硬掩模材料和硬掩模延伸部来处理字线材料以形成字线，然后去除图案化的硬掩模材料和硬掩模延伸部。

    Method for forming a semiconductor device with self-aligned contacts using a liner oxide layer
    4.
    发明授权
    Method for forming a semiconductor device with self-aligned contacts using a liner oxide layer 有权
    使用衬垫氧化物层形成具有自对准触点的半导体器件的方法

    公开(公告)号：US06475847B1

    公开(公告)日：2002-11-05

    申请号：US10109526

    申请日：2002-03-27

    申请人： Minh Van Ngo ,  Yu Sun ,  Fei Wang ,  Mark T. Ramsbey ,  Chi Chang ,  Angela T. Hui ,  Mark S. Chang

    发明人： Minh Van Ngo ,  Yu Sun ,  Fei Wang ,  Mark T. Ramsbey ,  Chi Chang ,  Angela T. Hui ,  Mark S. Chang

    IPC分类号： H01L218238

    CPC分类号： H01L27/11521 ,  H01L21/76829 ,  H01L21/76897 ,  H01L27/115 ,  H01L2924/3011

    摘要： A method for shrinking a semiconductor device and minimizing auto-doping problem is disclosed. An etch stop layer is eliminated and is replaced with a consumable liner oxide layer so that stacked gate structures of the device can be positioned closer together, thus permitting shrinking of the device. The liner oxide layer is formed directly over a substrate and in contact with stacked gate structures, sidewall spacers, and sources and drains formed on the substrate, and serves as an auto-doping barrier for the dielectric layer to prevent boron and phosphorous formed in the dielectric layer from auto-doping into the sources and drains.

    摘要翻译： 公开了一种缩小半导体器件并最小化自动掺杂问题的方法。 蚀刻停止层被消除并且被可消耗的衬垫氧化物层代替，使得该器件的层叠栅极结构可以被更靠近地放置在一起，从而允许器件收缩。 衬垫氧化物层直接形成在衬底上并与堆叠的栅极结构，侧壁间隔物以及形成在衬底上的源极和漏极接触，并且用作电介质层的自动掺杂势垒，以防止形成在衬底中的硼和磷 电介质层自动掺入源和漏极。

    Using thin undoped TEOS with BPTEOS ILD or BPTEOS ILD alone to improve charge loss and contact resistance in multi bit memory devices
    6.
    发明授权
    Using thin undoped TEOS with BPTEOS ILD or BPTEOS ILD alone to improve charge loss and contact resistance in multi bit memory devices 有权
    单独使用BPTEOS ILD或BPTEOS ILD的薄的未掺杂TEOS来改善多位存储器件中的电荷损耗和接触电阻

    公开(公告)号：US07157335B1

    公开(公告)日：2007-01-02

    申请号：US10917562

    申请日：2004-08-13

    申请人： Ning Cheng ,  Minh Van Ngo ,  Hirokazu Tokuno ,  Lu You ,  Angela T. Hui ,  Yi He ,  Brian Mooney ,  Jean Yei-Mei Yang ,  Mark T. Ramsbey

    发明人： Ning Cheng ,  Minh Van Ngo ,  Hirokazu Tokuno ,  Lu You ,  Angela T. Hui ,  Yi He ,  Brian Mooney ,  Jean Yei-Mei Yang ,  Mark T. Ramsbey

    IPC分类号： H01L21/336

    CPC分类号： H01L27/115 ,  H01L27/11568

    摘要： The present invention facilitates dual bit memory devices and operation of dual bit memory device by providing systems and methods that employ a relatively thin undoped TEOS liner during fabrication, instead of a relatively thick TEOS layer that is conventionally used. Employment of the relatively thin liner facilitates dual bit memory device operation by mitigating charge loss and contact resistance while providing protection against unwanted dopant diffusion. The present invention includes utilizing a relatively thin undoped TEOS liner that is formed on wordlines and portions of a charge trapping dielectric layer. The relatively thin undoped TEOS liner is formed with a thickness of less than about 400 Angstroms so that contact resistance and charge loss are improved and yet providing suitable protection for operation of the device. Additionally, the present invention includes foregoing with an undoped TEOS liner altogether.

    摘要翻译： 本发明通过提供在制造期间使用相对薄的未掺杂TEOS衬垫的系统和方法而不是通常使用的相对较厚的TEOS层来便于双位存储器件和双位存储器件的操作。 使用相对薄的衬垫通过减轻电荷损失和接触电阻而提供双位存储器件操作，同时提供防止不期望的掺杂剂扩散的保护。 本发明包括利用形成在字线和电荷捕获电介质层的部分上的相对薄的未掺杂的TEOS衬垫。 相对薄的未掺杂的TEOS衬垫形成有小于约400埃的厚度，使得接触电阻和电荷损失得到改善，并且为器件的操作提供适当的保护。 此外，本发明包括前述的未掺杂的TEOS衬垫。

    Method for removing anti-reflective coating layer using plasma etch process before contact CMP
    7.
    发明授权
    Method for removing anti-reflective coating layer using plasma etch process before contact CMP 有权
    在接触CMP之前使用等离子体蚀刻工艺去除抗反射涂层的方法

    公开(公告)号：US06291296B1

    公开(公告)日：2001-09-18

    申请号：US09416382

    申请日：1999-10-12

    申请人： Angela T. Hui ,  Wenge Yang ,  Kashmir Sahota ,  Mark T. Ramsbey ,  Suzette K. Pangrle ,  Minh Van Ngo

    发明人： Angela T. Hui ,  Wenge Yang ,  Kashmir Sahota ,  Mark T. Ramsbey ,  Suzette K. Pangrle ,  Minh Van Ngo

    IPC分类号： H01L218247

    CPC分类号： H01L27/11521 ,  H01L27/115 ,  Y10S438/951

    摘要： The present invention provides a method for selectively removing anti-reflective coating (ARC) from the surface of an dielectric layer over the surface of a substrate without scratching the dielectric layer and/or tungsten contacts formed therein. In one embodiment, a fluoromethane (CH3F)/oxygen (O2) etch chemistry is used to selectively remove the ARC layer without scratching and/or degradation of the dielectric layer, source/drain regions formed over the substrate, and a silicide layer formed atop stacked gate structures. The CH3F/O2 etch chemistry etches the ARC layer at a rate which is significantly faster than the etch rates of the dielectric layer, the source/drain regions and the silicide layer. In addition, by removing the ARC layer prior to the formation of tungsten contacts by filling of contact openings formed in the dielectric layer with tungsten, potential scratching of tungsten contacts due to ARC layer removal is eliminated.

    摘要翻译： 本发明提供了一种从基板表面上的电介质层的表面选择性去除抗反射涂层（ARC）的方法，而不会刮擦形成在其中的电介质层和/或钨触点。 在一个实施方案中，使用氟甲烷（CH 3 F）/氧（O 2）蚀刻化学物质来选择性地除去ARC层，而不会在电介质层，形成在衬底上的源极/漏极区域的划伤和/或降解，以及形成在顶部的硅化物层 堆叠门结构。 CH3F / O2蚀刻化学以比介电层，源/漏区和硅化物层的蚀刻速率明显更快的速率蚀刻ARC层。 此外，通过在形成钨触点之前，通过用钨填充形成在电介质层中的接触开口来去除ARC层，消除了由于ARC层去除引起的钨触点的潜在划痕。

    Semiconductor device with self-aligned contacts using a liner oxide layer
    8.
    发明授权
    Semiconductor device with self-aligned contacts using a liner oxide layer 有权
    具有使用衬垫氧化物层的自对准触点的半导体器件

    公开(公告)号：US06420752B1

    公开(公告)日：2002-07-16

    申请号：US09502163

    申请日：2000-02-11

    申请人： Minh Van Ngo ,  Yu Sun ,  Fei Wang ,  Mark T. Ramsbey ,  Chi Chang ,  Angela T. Hui ,  Mark S. Chang

    发明人： Minh Van Ngo ,  Yu Sun ,  Fei Wang ,  Mark T. Ramsbey ,  Chi Chang ,  Angela T. Hui ,  Mark S. Chang

    IPC分类号： H01L29788

    CPC分类号： H01L27/11521 ,  H01L21/76829 ,  H01L21/76897 ,  H01L27/115 ,  H01L2924/3011

    摘要： A semiconductor device for minimizing auto-doping problems is disclosed. An etch stop layer is eliminated and is replaced with a consumable liner oxide layer so that stacked gate structures of the device can be positioned closer together, thus permitting shrinking of the device. The liner oxide layer is formed directly over a substrate and in contact with stacked gate structures, sidewall spacers, and sources and drains formed on the substrate, and serves as an auto-doping barrier for the dielectric layer to prevent boron and phosphorous formed in the dielectric layer from auto-doping into the sources and drains.

    摘要翻译： 公开了一种用于最小化自动掺杂问题的半导体器件。 蚀刻停止层被消除并且被可消耗的衬垫氧化物层代替，使得该器件的层叠栅极结构可以被更靠近地放置在一起，从而允许器件收缩。 衬垫氧化物层直接形成在衬底上并且与堆叠的栅极结构，侧壁间隔物以及形成在衬底上的源极和漏极接触并且用作介电层的自动掺杂势垒，以防止形成在衬底中的硼和磷 电介质层自动掺入源和漏极。