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    • 2. 发明公开
    • 강유전성 Pb(Zr,Ti)O3 막의 형성법
    • 用于制备电镀Pb(Zr,Ti)O3薄膜的方法
    • KR1020030014659A
    • 2003-02-19
    • KR1020020046878
    • 2002-08-08
    • 애질런트 테크놀로지스, 인크.
    • 길버트스티븐알싱카우샬아가왈산제브헌터스테반
    • H01L21/8247
    • C23C16/409H01L21/31691Y10S427/101
    • PURPOSE: A method for fabricating a ferroelectric Pb(Zr, Ti)O3(PZT) film is provided to form a PZT thin film having thicknesses of 70 nanometer or less to be fabricated at a relatively low deposition temperature and with high within-wafer uniformity and high throughput. CONSTITUTION: In one embodiment, a source reagent solution comprises a mixture of a lead precursor, a titanium precursor and a zirconium precursor in a solvent medium. The source reagent solution is vaporized to form a precursor vapor. The precursor vapor is introduced into a chemical vapor deposition chamber containing a substrate(22). In another embodiment, before deposition, the substrate is preheated during a preheating period. After the preheating period, the substrate is disposed on a heated susceptor(24) during a heating period, after which a PZT film is formed on the heated substrate.
    • 目的:提供一种制造铁电Pb(Zr,Ti)O 3(PZT)膜的方法,以形成厚度为70纳米或更小的PZT薄膜,以便在相对低的沉积温度下制造并具有高的晶片内均匀性 和高吞吐量。 构成:在一个实施方案中,源试剂溶液在溶剂介质中包含铅前体,钛前体和锆前体的混合物。 源试剂溶液蒸发以形成前体蒸气。 前体蒸气被引入包含基底(22)的化学气相沉积室中。 在另一个实施例中,在沉积之前,在预热期间预热衬底。 在预热期间之后,在加热期间将衬底设置在加热的基座(24)上,之后在被加热的衬底上形成PZT膜。
    • 4. 发明公开
    • 내장된 강유전성 소자의 제조공정을 위한 오염 제어법
    • 嵌入式电磁装置制造工艺的污染控制方法
    • KR1020030014627A
    • 2003-02-19
    • KR1020020046627
    • 2002-08-07
    • 애질런트 테크놀로지스, 인크.
    • 길버트스티븐알허드트레이스큐미카리미라우라더블유서머펠트스코트콜롬보루이지
    • H01L27/105
    • H01L21/6708H01L21/31122H01L21/32136H01L27/0805H01L27/11502H01L28/55
    • PURPOSE: A contamination control method for an embedded ferroelectric device fabrication process is provided to form a ferroelectric device together with a semiconductor integrated circuit without substantial risk of cross contamination through shared equipment(e.g., steppers, metrology tools, and the like) by integrating a ferroelectric device fabrication process with a standard semiconductor fabrication process. CONSTITUTION: Ferroelectric device contaminant substrates(e.g., Pb, Zr, Ti and Ir) that are incompatible with standard complementary metal oxide semiconductor(CMOS) fabrication processes are tightly controlled. Specific etch chemistries have been developed to remove incompatible substances from the backside and edge surfaces of the substrate after a ferroelectric device has been formed. In addition, a sacrificial layer may be disposed over the bottom and edge surfaces(and, in some embodiments, the front side edge exclusion zone surface) of the substrate to assist in the removal of difficult-to-etch contaminants(e.g., Ir).
    • 目的:提供一种用于嵌入式铁电体器件制造工艺的污染控制方法,以与半导体集成电路一起形成铁电器件,而不会通过共享设备(例如,步进器,计量工具等)具有交叉污染的实质性风险, 具有标准半导体制造工艺的铁电器件制造工艺。 构成:与标准互补金属氧化物半导体(CMOS)制造工艺不兼容的铁电器件污染物基底(例如,Pb,Zr,Ti和Ir)被严格控制。 已经开发了特定的蚀刻化学物质,以在形成铁电体器件之后从衬底的背面和边缘表面去除不相容的物质。 此外,牺牲层可以设置在衬底的底部和边缘表面(以及在一些实施例中,前侧边缘排除区域表面)之上,以帮助去除难以蚀刻的污染物(例如,Ir) 。