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    • 2. 发明公开
    • 플라즈마 도핑 방법 및 플라즈마 도핑 장치
    • 等离子喷涂方法和等离子体喷涂装置
    • KR1020080007436A
    • 2008-01-21
    • KR1020077023413
    • 2006-05-11
    • 파나소닉 주식회사
    • 사사키,유이치로오카시타,카츠미이토,히로유키미즈노,분지오쿠무라,토모히로
    • H01L21/26
    • H01L21/2236C23C14/48H01J37/32412
    • This invention provides a method for plasma doping that, even when plasma treatment is repeated, can realize an identical dose from a film to a silicon substrate for each time. In the method for plasma doping, a sample is mounted on a sample electrode within a vacuum vessel, and plasma is generated in a vacuum vessel to allow impurity ions in the plasma to collide against the surface of the sample and thus to form an impurity introduction layer on the surface of the sample. The method for plasma doping comprises a maintenance step of providing a vacuum vessel having an inner wall provided with a film, containing the above impurities, which functions so that the amount of the impurity introduced into the surface of the sample by sputtering by hitting the impurity-containing film, fixed onto the inner wall of the vacuum vessel, by ions in the plasma remains unchanged even when the impurity ion-containing plasma is repeatedly generated within the vacuum vessel, a step of mounting a sample on the sample electrode, and a step of applying the impurity ion-containing plasma to implant the impurity ion on into the sample and, at the same time, to introduce the impurity into the sample by sputtering from the impurity-containing film fixed onto the inner wall of the vacuum vessel.
    • 本发明提供等离子体掺杂的方法,即使等离子体处理重复,也可以每次实现从薄膜到硅基板的相同剂量。 在等离子体掺杂的方法中,将样品安装在真空容器内的样品电极上,并且在真空容器中产生等离子体,以使等离子体中的杂质离子与样品的表面碰撞,从而形成杂质引入 层在样品表面。 等离子体掺杂的方法包括维持步骤,提供具有设置有膜的内壁的真空容器,所述内壁含有上述杂质,其功能是使得通过溅射杂质而导入样品表面的杂质的量 即使当在真空容器内重复产生含杂质离子的等离子体时,等离子体中的离子固定在真空容器的内壁上也是保持不变的,将样品安装在样品电极上的步骤 施加含杂质离子的等离子体将杂质离子注入到样品中并同时通过从固定在真空容器的内壁上的含杂质膜溅射而将杂质引入到样品中的步骤。
    • 5. 发明公开
    • 플라즈마 도핑 방법
    • 等离子喷涂方法
    • KR1020070086048A
    • 2007-08-27
    • KR1020077013165
    • 2005-12-12
    • 파나소닉 주식회사
    • 사사키,유이치로오카시타,카츠미이토,히로유키미즈노,번지오쿠무라,토모히로
    • H01L21/265
    • H01L21/2236H01J37/32412H01L29/66795
    • To realize a plasma doping method which can control a dosage precisely to improve an in-plane homogeneity of the dosage. The plasma doping method is based on such a discovery, while noting the result, that the dosage of boron is substantially constant for a time period, if a silicon substrate is irradiated with a B2H6/He plasma and is biased, and that the saturation time period is longer and stabler than that, for which the repetitions of an apparatus control can be retained. When the plasma irradiation is started, the dosage increases at first, but then continues to be substantially constant independently of the time change. The dosage then decreases if the time is elongated. If this time period, for which the dosage is substantially constant independently of the time change, is employed as a process window, the dosage can be precisely controlled.
    • 实现能够精确控制剂量以提高剂量的平面内均匀性的等离子体掺杂方法。 等离子体掺杂方法是基于这样的发现,而注意到结果是,如果硅衬底用B2H6 / He等离子体照射并被偏置,则硼的剂量在一段时间内基本上是恒定的,并且饱和时间 时间比那个时间更长和更稳定,为此可以保留设备控制的重复。 当开始等离子体照射时,剂量首先增加,但是随着时间的变化而继续基本上恒定。 如果时间延长,剂量会降低。 如果这个时间段,其剂量基本上恒定地与时间变化无关​​,作为处理窗口,可以精确地控制剂量。
    • 6. 发明公开
    • 플라즈마 도핑 방법 및 장치
    • 等离子喷涂方法和装置
    • KR1020070115907A
    • 2007-12-06
    • KR1020077019447
    • 2006-03-30
    • 파나소닉 주식회사
    • 사사키,유이치로오쿠무라,토모히로오카시타,카츠미이토,히로유키미즈노,번지
    • H01L21/265H01L21/22H01L21/66
    • H01J37/32935H01J37/32412H01L21/67115H01L22/20H01L22/26
    • Plasma doping method and apparatus by which excellent implanting depth of an impurity introduced in a sample or excellent repeatability and controllability of an amorphous layer depth can be provided. In the plasma doping method, plasma is generated in a vacuum vessel, and a surface of a crystalline sample is changed to be in an amorphous state by permitting ions in the plasma to collide against the surface of the sample. The plasma doping method includes a step of treating a dummy sample to have it in an amorphous state by irradiating the sample with plasma, with a prescribed number of samples; and a step of applying a light on the dummy sample surface irradiated with the plasma and measuring optical characteristics of the dummy sample surface. The sample treating conditions are controlled so that the optical characteristics obtained by the measuring step are at desired values.
    • 可以提供等离子体掺杂方法和装置,通过该方法和装置,可以提供在样品中引入的杂质的优异的注入深度或非晶层深度的优异的重复性和可控性。 在等离子体掺杂方法中,在真空容器中产生等离子体,通过使等离子体中的离子与样品的表面碰撞,结晶样品的表面变为非晶态。 等离子体掺杂方法包括通过用规定数量的样品用等离子体照射样品来处理虚拟样品使其处于非晶状态的步骤; 以及对被照射等离子体的虚拟样品表面施加光并测量虚拟样品表面的光学特性的步骤。 对样品处理条件进行控制,使得通过测量步骤获得的光学特性为期望值。