公开(公告)号：US5668054A

公开(公告)日：1997-09-16

申请号：US584749

申请日：1996-01-11

申请人： Shi-Chung Sun ,  Hien-Tien Chiu ,  Ming-Hsing Tsai

发明人： Shi-Chung Sun ,  Hien-Tien Chiu ,  Ming-Hsing Tsai

IPC分类号： C23C16/34 ,  H01L21/285 ,  H01L21/768 ,  H01L21/28

CPC分类号： H01L21/76843 ,  C23C16/34 ,  H01L21/28556

摘要： A process for fabricating a tantalum nitride diffusion barrier for the advanced copper metallization of semiconductor devices is disclosed. The process comprises the steps of first preparing a semiconductor device fabricated over the surface of a silicon substrate having a component with a fabricated contact opening. Before the formation of the copper contact by deposition, the process performs a tantalum nitride low-pressure chemical-vapor-deposition procedure that deposits a layer of tantalum nitride thin film over the surface of the device substrate. After the copper deposition, a photoresist layer is subsequently fabricated for patterning the deposited copper contact and tantalum nitride layers, whereby the deposited thin film of tantalum nitride is patterned to form the thin film as the metallization diffusion barrier for the semiconductor device. The tantalum nitride low-pressure chemical-vapor-deposition procedure includes depositing a layer of tantalum nitride utilizing a metal-organic precursor terbutylimido-tris-diethylamido tantalum (TBTDET) in a cold-wall low pressure reactor with a base pressure of about 10.sup.-5 torr. The source of the metal-organic precursor is vaporized at a temperature of about 40.degree. to 50.degree. C. The typical deposition pressure is about 20 mtorr. Tantalum nitride layer of low carbon content and low resistivity may thus be formed in the disclosed chemical-vapor-deposition procedure having effective capability against copper diffusion.

摘要翻译： 公开了一种用于制造用于半导体器件的先进铜金属化的氮化钽扩散阻挡层的工艺。 该方法包括以下步骤：首先制备在具有制造的接触开口的部件的硅衬底的表面上制造的半导体器件。 在通过沉积形成铜接触之前，该工艺执行在器件衬底的表面上沉积氮化钽薄层的氮化钽低压化学气相沉积工艺。 在铜沉积之后，随后制造光致抗蚀剂层以图案化沉积的铜接触和氮化钽层，由此沉积的氮化钽薄膜被图案化以形成作为半导体器件的金属化扩散阻挡层的薄膜。 氮化钽低压化学气相沉积方法包括使用金属有机前体叔丁基亚氨基 - 三 - 二乙基氨基钽（TBTDET）在基本压力为约10 -6的冷壁低压反应器中沉积氮化钽层， 5托 金属有机前体的来源在约40℃至50℃的温度下蒸发。典型的沉积压力为约20毫托。 因此，可以在具有对铜扩散的有效能力的公开的化学气相沉积方法中形成低碳含量和低电阻率的氮化钽层。

公开(公告)号：US20100230816A1

公开(公告)日：2010-09-16

申请号：US12787559

申请日：2010-05-26

申请人： Hung-Wen Su ,  Shih-Wei Chou ,  Ming-Hsing Tsai

发明人： Hung-Wen Su ,  Shih-Wei Chou ,  Ming-Hsing Tsai

IPC分类号： H01L23/48 ,  H01L21/768

CPC分类号： H01L23/528 ,  H01L21/2855 ,  H01L21/28556 ,  H01L21/28562 ,  H01L21/76834 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76856 ,  H01L21/76888 ,  H01L23/53238 ,  H01L23/53266 ,  H01L2924/0002 ,  H01L2924/00

摘要： Semiconductor devices and methods for forming the same in which damages to a low-k dielectric layer therein can be reduced or even prevented are provided. A semiconductor device is provided, comprising a substrate. A dielectric layer with at least one conductive feature therein overlies the substrate. An insulating cap layer overlies the top surface of the low-k dielectric layer adjacent to the conductive feature, wherein the insulating cap layer comprises metal ions.

摘要翻译： 提供了可以减少或甚至防止对其中低k电介质层的损坏的用于形成其的半导体器件及其制造方法。 提供了一种半导体器件，包括衬底。 其中具有至少一个导电特征的电介质层覆盖在衬底上。 绝缘覆盖层覆盖邻近导电特征的低k电介质层的顶表面，其中绝缘帽层包括金属离子。

公开(公告)号：US07597787B2

公开(公告)日：2009-10-06

申请号：US11072137

申请日：2005-03-04

申请人： Hung-Wen Su ,  Ming-Hsing Tsai

发明人： Hung-Wen Su ,  Ming-Hsing Tsai

IPC分类号： C25D3/06

CPC分类号： C25D17/001 ,  C25D17/005 ,  H01L21/2885 ,  H01L21/76841

摘要： Methods and apparatuses for electrochemically depositing a metal layer onto a substrate. An electrochemical deposition apparatus comprises a substrate holder assembly including a substrate chuck and a relatively soft cathode contact ring. The cathode contact ring comprises an inner portion and an outer portion, wherein the inner portion directly contacts the substrate. An anode is disposed in an electrolyte container. A power supply connects the substrate holder assembly and the anode.

摘要翻译： 将金属层电化学沉积到基底上的方法和装置。 一种电化学沉积设备包括一个衬底保持器组件，该衬底保持器组件包括衬底卡盘和相对软的阴极接触环 阴极接触环包括内部部分和外部部分，其中内部部分直接接触基板。 阳极设置在电解质容器中。 电源连接衬底保持器组件和阳极。

公开(公告)号：US07026244B2

公开(公告)日：2006-04-11

申请号：US10637105

申请日：2003-08-08

申请人： Ting-Chu Ko ,  Ming-Hsing Tsai ,  Chien-Hsueh Shih

发明人： Ting-Chu Ko ,  Ming-Hsing Tsai ,  Chien-Hsueh Shih

IPC分类号： H01C23/48

CPC分类号： H01L23/53238 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method and system is provided for efficiently varying the composition of the metal interconnects for a semiconductor device. A metal interconnect according to the present disclosure has an intermediate layer on a dielectric material, the intermediate layer having a relatively higher concentration of an impurity metal along with a primary metal, the impurity metal having a lower reduction potential than the primary metal. The metal interconnect has a main layer of the metal alloy interconnect on top of the intermediate layer and surrounded by the intermediate layer, the main layer having a relatively higher concentration of the primary metal than the intermediate layer, wherein the intermediate and main layers of the metal alloy interconnect each maintains a material uniformity.

摘要翻译： 提供了一种方法和系统，用于有效地改变半导体器件的金属互连的组成。 根据本公开的金属互连在电介质材料上具有中间层，中间层与主金属一起具有较高浓度的杂质金属，杂质金属具有比初级金属低的还原电位。 金属互连件在中间层的顶部具有金属合金互连的主层，被中间层包围，主层具有比中间层更高的一次金属浓度，其中，中间层和中间层的中间层和主要层 金属合金互连件均保持材料均匀性。

公开(公告)号：US20060054508A1

公开(公告)日：2006-03-16

申请号：US10943744

申请日：2004-09-16

申请人： Ming-Wei Lin ,  Ming-Hsing Tsai

发明人： Ming-Wei Lin ,  Ming-Hsing Tsai

IPC分类号： C25D3/48 ,  C25D3/38 ,  C25D5/48

CPC分类号： H01L21/2885 ,  C25D3/02 ,  C25D3/38 ,  H01L21/7684

摘要： A new and improved method for electroplating a metal onto a substrate in such a manner as to render the metal essentially corrosion-resistant during subsequent substrate processing such as chemical mechanical polishing. The process involves incorporating nitrogen into the metal as the metal is electroplated onto the substrate. The process includes preparing the electroplating bath, placing a leveler chemical containing nitrogen in the prepared bath, circulating the leveler chemical throughout the bath and then electroplating the metal on the substrate. In a preferred embodiment, alkyl polyamide, alkyl amine, alkyl amine oxide or thiourea with molecular weight ranging from 100˜1,000,000 is used as the leveler chemical.

摘要翻译： 一种新的和改进的方法，用于将金属电镀到基底上，使得金属在随后的基底处理（例如化学机械抛光）中基本上具有耐腐蚀性。 该方法包括在将金属电镀到基底上时将氮掺入金属中。 该方法包括制备电镀浴，将准备好的浴中含有氮的矫正剂化学品放置在整个浴中，使整平剂化学品循环，然后将金属电镀在基底上。 在优选的实施方案中，使用分子量为100〜1,000,000的烷基聚酰胺，烷基胺，烷基氧化胺或硫脲作为矫光剂。

公开(公告)号：US06759750B2

公开(公告)日：2004-07-06

申请号：US10623910

申请日：2003-07-18

申请人： Shau-Lin Shue ,  Ming-Hsing Tsai

发明人： Shau-Lin Shue ,  Ming-Hsing Tsai

IPC分类号： H01L2348

CPC分类号： H01L23/522 ,  H01L21/76801 ,  H01L21/76807 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method for integrating low-K materials in semiconductor fabrication. The process begins by providing a semiconductor structure having a dielectric layer thereover, wherein the dielectric layer comprising an organic low-K material. The dielectric layer is patterned to form pillar openings. A pillar layer is deposited over the semiconductor structure; thereby filling the pillar openings with the pillar layer. The pillar layer is planarized to form pillars embedded in said dielectric layer. The pillar layer comprises a material having good thermal stability, good structural strength, and good bondability of spin coating back-end materials, improving the manufacturability of organic, low-K dielectrics in semiconductor fabrication. In one embodiment, the pillars are formed prior to forming dual damascene interlayer contacts. In another embodiment, pillars are formed simultaneously with interlayer contacts.

摘要翻译： 一种用于在半导体制造中集成低K材料的方法。 该方法开始于提供其上具有介电层的半导体结构，其中介电层包含有机低K材料。 图案化电介质层以形成柱状开口。 在半导体结构上沉积柱层; 从而用柱层填充柱状开口。 柱层被平坦化以形成嵌入在所述介电层中的柱。 柱层包括具有良好的热稳定性，良好的结构强度和旋涂后端材料的良好的粘合性的材料，提高半导体制造中的有机，低K电介质的可制造性。 在一个实施例中，在形成双镶嵌层间接触之前形成柱。 在另一个实施方案中，柱与层间接触同时形成。

公开(公告)号：US06620725B1

公开(公告)日：2003-09-16

申请号：US09395287

申请日：1999-09-13

申请人： Shau-Lin Shue ,  Ming-Hsing Tsai ,  Wen-Jye Tsai ,  Ying-Ho Chen ,  Tsu Shih ,  Jih-Churng Twu ,  Syun-Ming Jang

发明人： Shau-Lin Shue ,  Ming-Hsing Tsai ,  Wen-Jye Tsai ,  Ying-Ho Chen ,  Tsu Shih ,  Jih-Churng Twu ,  Syun-Ming Jang

IPC分类号： H01L214763

CPC分类号： H01L21/7684 ,  H01L21/3212

摘要： A process for performing CMP in two steps is described. After trenches have been formed and over-filled with copper, in a first embodiment of the invention a hard pad is used initially to remove most of the copper until a point is reached where dishing effects would begin to appear. A soft pad is then substituted and CMP continued until all copper has been removed, except in the trenches. In a second embodiment, CMP is initiated using a pad to which high-pressure is applied and which rotates relatively slowly. As before, this combination is used until the point is reached where dishing effects would begin to appear. Then, relatively low pressure in combination with relatively high rotational speed is used until all copper has been removed, except in the trenches. Both of these embodiments result in trenches which are just-filled with copper, with little or no dishing effects, and with all traces of copper removed everywhere except in the trenches themselves.

摘要翻译： 描述用于在两个步骤中执行CMP的过程。 在沟槽已经形成并且用铜过度填充之后，在本发明的第一实施例中，最初使用硬焊盘去除大部分铜，直到达到一个点，其中凹陷效应将开始出现。 然后取代软焊盘，继续CMP直到除了沟槽中除去所有的铜。 在第二实施例中，使用施加高压并且相对缓慢地旋转的衬垫来启动CMP。 如前所述，使用这种组合，直到达到点，其中凹陷效应将开始出现。 然后，除了沟槽之外，使用相对较低的压力结合相对高的转速直到除去所有的铜。 这两个实施例都导致刚好填充铜的沟槽，几乎没有凹陷效应，并且除了沟槽本身之外，所有痕迹的铜都被去除。

公开(公告)号：US06562725B2

公开(公告)日：2003-05-13

申请号：US09899420

申请日：2001-07-05

申请人： Ming-Hsing Tsai ,  Ching-Hua Hsieh ,  Shau-Lin Shue ,  Chen-Hua Yu

发明人： Ming-Hsing Tsai ,  Ching-Hua Hsieh ,  Shau-Lin Shue ,  Chen-Hua Yu

IPC分类号： H01L2100

CPC分类号： H01L21/76829 ,  H01L21/31116 ,  H01L21/314 ,  H01L21/7681 ,  H01L21/76834

摘要： Within a dual damascene method for forming a dual damascene aperture within a microelectronic fabrication there is employed a first etch stop layer formed of a first material and a second etch stop layer formed of a second material. One of the first material and the second material is a non-nitrogenated silicon carbide material and the other of the first material and the second material is a nitrogenated silicon carbide material. By employing the first material and the second material, there may be etched completely through the first etch stop layer to reach a contact region formed there beneath while not etching completely through the second etch stop layer to reach a first dielectric layer formed there beneath.

摘要翻译： 在用于在微电子制造中形成双镶嵌孔的双镶嵌方法中，采用由第一材料形成的第一蚀刻停止层和由第二材料形成的第二蚀刻停止层。 第一材料和第二材料之一是非氮化碳化硅材料，第一材料和第二材料中的另一种是氮化碳化硅材料。 通过使用第一材料和第二材料，可以完全蚀刻通过第一蚀刻停止层以到达其下方形成的接触区域，而不完全蚀刻通过第二蚀刻停止层，以到达在其下方形成的第一介电层。

公开(公告)号：US06479389B1

公开(公告)日：2002-11-12

申请号：US09412632

申请日：1999-10-04

申请人： Ming-Hsing Tsai ,  Sheng Hsiang Chen

发明人： Ming-Hsing Tsai ,  Sheng Hsiang Chen

IPC分类号： H01L21302

CPC分类号： H01L21/76877 ,  H01L21/76886

摘要： This invention describes two new methods to form copper alloy films. In the first embodiment of this invention physical vapor deposition (PVD) or sputtering of a copper alloy film, is then followed by a chemical vapor deposition (CVD) or electro-chemical deposition (ECD) of a layer of pure copper. In the second embodiment of this invention chemical vapor deposition (CVD) or electro-chemical deposition (ECD) deposits a layer of pure copper, which is then followed by physical vapor deposition (PVD) or sputtering of a copper alloy film. In yet another embodiment to these methods, special, separate low temperature annealing steps follow said methods to enhance copper alloy formation. By the two deposition techniques briefly described above, high aspect ratio vias and trenches can be filled with copper corrosion and electromigration resistant alloys.

摘要翻译： 本发明描述了形成铜合金膜的两种新方法。 在本发明的第一实施例中，铜合金膜的物理气相沉积（PVD）或溅射之后是纯铜层的化学气相沉积（CVD）或电化学沉积（ECD）。 在本发明的第二实施例中，化学气相沉积（CVD）或电化学沉积（ECD）沉积一层纯铜，然后进行物理气相沉积（PVD）或铜合金膜的溅射。 在这些方法的另一个实施方案中，特殊的分开的低温退火步骤遵循所述方法以增强铜合金的形成。 通过上述两种沉积技术，可以用铜腐蚀和电迁移合金填充高纵横比通孔和沟槽。

公开(公告)号：US06420258B1

公开(公告)日：2002-07-16

申请号：US09434564

申请日：1999-11-12

申请人： Sheng Hsiung Chen ,  Ming-Hsing Tsai

发明人： Sheng Hsiung Chen ,  Ming-Hsing Tsai

IPC分类号： H01L214763

CPC分类号： H01L21/76879

摘要： A novel and improved method of fabricating an integrated circuit, in which special copper films are formed by a combination of physical vapor deposition (PVD), chemical mechanical polish (CMP) and electrochemical copper deposition (ECD) techniques. The methods of the present invention make efficient use of several process steps resulting in less processing time, lower costs and higher device reliability. By these techniques, high aspect ratio trenches can be filled with copper without the problem of dishing. A special, selective electrochemical deposition (ECD) of copper metal is utilized taking place only on the seed layer in the trench. This auto-plating or “plate-up” occurs only in the trench and provides good sealing around the trench perimeter and fine copper metal coverage of the trench for subsequent robust interconnects. The selective plating of copper provides a robust copper film that is easily removed by subsequent chemical mechanical polish (CMP) and tends to be more uniform and free of the usual defects associated with CMP films.

摘要翻译： 一种新颖且改进的制造集成电路的方法，其中通过物理气相沉积（PVD），化学机械抛光（CMP）和电化学铜沉积（ECD）技术的组合形成特殊的铜膜。 本发明的方法有效地利用几个工艺步骤，导致更少的处理时间，更低的成本和更高的器件可靠性。 通过这些技术，可以用铜填充高纵横比沟槽，而不会出现凹陷的问题。 仅在沟槽中的种子层上使用​​铜金属的特殊的选择性电化学沉积（ECD）。 这种自动电镀或“平板化”仅发生在沟槽中，并且在沟槽周边和沟槽的细铜金属覆盖层周围提供良好的密封以用于随后的鲁棒互连。 铜的选择性电镀提供了坚固的铜膜，其易于通过后续的化学机械抛光（CMP）去除，并且趋向于更均匀并且没有与CMP膜相关的常见缺陷。