会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Peeling free metal silicide films using ion implantation
    • 使用离子注入剥离游离金属硅化物膜
    • US5541131A
    • 1996-07-30
    • US649549
    • 1991-02-01
    • Chue-San YooTing-Hwang Lin
    • Chue-San YooTing-Hwang Lin
    • H01L21/285H01L21/336
    • H01L29/6659H01L21/28518Y10S148/147
    • A method is described for fabricating a lightly doped drain MOSFET integrated circuit device which overcomes the polycide peeling problems. A pattern of gate electrode structures is formed upon a semiconductor substrate which each includes a gate oxide, a polysilicon layer and an amorphous refractory metal silicide. The resulting structure may be annealed in oxygen at this time to change the refractory metal silicide from it deposited amorphous phase into its crystalline phase. This causes the formation of a thin layer of silicon dioxide upon the exposed silicon substrate, the exposed polysilicon layer and the exposed metal silicide layer. A pattern of lightly doped regions in the substrate is formed by ion implantation using the polycide gate structures as the mask. A dielectric layer is blanket deposited over the surfaces and spacer structures formed by anisotropic etching. A pattern of heavily doped regions in the substrate is formed by ion implantation using the polycide structures with spacer structures as the mask to produce the lightly doped drain source/drain structures of an MOSFET device. The silicon oxide layer on the top surface of the metal silicate layer was removed by etching. Silicon ions are now implanted into the metal silicide layer to supply an excess of silicon ions at the surface of the metal silicide layer. The integrated circuit device is completed by forming a passivation layer over the structures described and appropriate electrical connecting structures thereover.
    • 描述了一种制造轻掺杂漏极MOSFET集成电路器件的方法,其克服了多晶硅剥离问题。 栅电极结构的图案形成在半导体衬底上,每个半导体衬底包括栅极氧化物,多晶硅层和非晶难熔金属硅化物。 此时可以在氧气中对所得结构进行退火,以将难熔金属硅化物从其沉积的非晶相变为其结晶相。 这导致在暴露的硅衬底,暴露的多晶硅层和暴露的金属硅化物层上形成薄的二氧化硅层。 通过使用多晶硅栅极结构作为掩模的离子注入形成衬底中的轻掺杂区域的图案。 介电层被覆盖在各个表面上,并通过各向异性蚀刻形成间隔结构。 通过使用具有间隔结构的聚硅氧烷结构作为掩模的离子注入形成衬底中的重掺杂区域的图案,以产生MOSFET器件的轻掺杂漏极/漏极结构。 通过蚀刻去除金属硅酸盐层的顶表面上的氧化硅层。 硅离子现在被注入到金属硅化物层中,以在金属硅化物层的表面处提供过量的硅离子。 通过在所描述的结构上形成钝化层并在其上形成适当的电连接结构来完成集成电路器件。
    • 4. 发明授权
    • Contact sidewall tapering with argon sputtering
    • 氩气溅射接触侧壁逐渐变细
    • US5203957A
    • 1993-04-20
    • US713508
    • 1991-06-12
    • Chue-San YooTing-Hwang LinSui-Hei Kuo
    • Chue-San YooTing-Hwang LinSui-Hei Kuo
    • H01L21/311H01L21/768
    • H01L21/76826H01L21/31116H01L21/76804
    • The method for making a contact opening for an integrated circuit having a feature size of about one micrometer or less is accomplished by first providing an integrated circuit structure having device elements within a semiconductor substate and multilayer insulating layers thereover. A resist masking layer is formed over the multilayer insulating layer having openings therein in the areas where the contact openings are desired. Isotropic etching is done through a desired thickness portion of multilayer insulating layer. Anisotropic etching is now done through the remaining thickness of multilayer insulating layer to the semiconductor substrate to form the desired contact opening. The resist layer is removed. The structure is subjected to an Argon sputter etching ambient to smooth the sharp corners at the upper surface of multilayer layer and the point where the isotropic etching ended and the anisotropic etching began. It is preferred that soft reactive ion etching be done for a period of less than about 30 seconds after said Argon sputter etching to reduce the increased contact resistance caused by this Argon sputter etching.
    • 通过首先提供具有在半导体子状态内的器件元件和其上的多层绝缘层的集成电路结构,来实现具有约1微米或更小特征尺寸的集成电路的接触开口的方法。 在需要接触开口的区域中,在其上具有开口的多层绝缘层上形成抗蚀剂掩模层。 通过多层绝缘层的所需厚度部分进行各向同性蚀刻。 现在通过多层绝缘层的剩余厚度到半导体衬底来形成各向异性蚀刻以形成所需的接触开口。 去除抗蚀剂层。 该结构经受氩溅射蚀刻环境以平滑多层层的上表面处的尖角以及各向同性蚀刻结束的点和各向异性蚀刻开始。 优选的是,在所述氩溅射蚀刻之后,软反应离子蚀刻进行时间小于约30秒,以减少由该氩溅射蚀刻引起的增加的接触电阻。
    • 8. 发明授权
    • Peeling free metal silicide films using rapid thermal anneal
    • 使用快速热退火剥离游离金属硅化物膜
    • US5393685A
    • 1995-02-28
    • US926299
    • 1992-08-10
    • Chue-San YooTing-Hwang Lin
    • Chue-San YooTing-Hwang Lin
    • H01L21/28H01L21/285H01L21/336H01L21/265
    • H01L29/6659H01L21/28061H01L21/28518
    • A method is described for fabricating a lightly doped drain MOSFET integrated circuit device which provides a peeling-free metal silicide gate electrode devices. The process uses annealing of the gate oxide, the polysilicon layer and the metal silicide layer using a rapid thermal annealing process at a temperature more than about 1000.degree. C. and for a time of between about 30 to 60 seconds. A pattern of lightly doped regions is formed in the substrate by ion implantation using the structures as the mask. A low temperature silicon dioxide layer is blanket deposited over the surfaces of the structure. The blanket layer is etched to form a dielectric spacer structure upon the sidewalls of each of the gate electrode structures and over the adjacent portions of the substrate, and to remove the silicon oxide layer from the top surfaces of metal silicide layer. Driving in the pattern of lightly doped regions is accomplished by rapid thermal annealing at a temperature of more than about 1000.degree. C. and for a time of between about 30 to 60 seconds with the metal silicide layer having no covering thereover. Heavily doped regions are now formed in the substrate to produce the lightly doped drain under the spacer structure of an MOS FET device. A passivation layer is formed over the structures and electrical connecting structures thereover.
    • 描述了一种制造提供无剥离金属硅化物栅电极器件的轻掺杂漏极MOSFET集成电路器件的方法。 该方法使用快速热退火工艺在大于约1000℃的温度和大约30至60秒的时间内对栅极氧化物,多晶硅层和金属硅化物层进行退火。 通过使用该结构作为掩模的离子注入在衬底中形成轻掺杂区域的图案。 低温二氧化硅层被覆盖在该结构的表面上。 蚀刻覆盖层以在每个栅电极结构的侧壁上和衬底的相邻部分之上形成介电间隔物结构,并从金属硅化物层的顶表面去除氧化硅层。 通过在大于约1000℃的温度下快速热退火并且在其间没有覆盖的金属硅化物层的时间为约30至60秒之间来实现轻掺杂区域的驱动。 现在在衬底中形成重掺杂区域,以在MOS FET器件的间隔结构之下产生轻掺杂漏极。 在其上的结构和电连接结构上形成钝化层。