Method of manufacturing semiconductor device

    公开(公告)号:US10115587B2

    公开(公告)日:2018-10-30

    申请号:US13879371

    申请日:2012-02-23

    Abstract: A reverse blocking IGBT is manufactured using a silicon wafer sliced from a single crystal silicon ingot which is manufactured by a floating method using a single crystal silicon ingot manufactured by a Czochralski method as a raw material. A separation layer for ensuring a reverse blocking performance of the reverse blocking IGBT is formed by diffusing impurities implanted into the silicon wafer using a thermal diffusion process. The thermal diffusion process for forming the separation layer is performed in an inert gas atmosphere at a temperature equal to or more than 1290° C. and less than the melting point of silicon. In this way, no crystal defect occurs in the silicon wafer and it is possible to prevent the occurrence of a reverse breakdown voltage defect or a forward defect in the reverse blocking IGBT and thus improve the yield of a semiconductor element.

    IMPURITY INTRODUCING METHOD, IMPURITY INTRODUCING APPARATUS, AND METHOD OF MANUFACTURING SEMICONDUCTOR ELEMENT
    9.
    发明申请
    IMPURITY INTRODUCING METHOD, IMPURITY INTRODUCING APPARATUS, AND METHOD OF MANUFACTURING SEMICONDUCTOR ELEMENT 有权
    造型引进方法,引进装置的制造方法和制造半导体元件的方法

    公开(公告)号:US20160005606A1

    公开(公告)日:2016-01-07

    申请号:US14729491

    申请日:2015-06-03

    CPC classification number: H01L21/0455 H01L21/268 H01L29/66712 H01L29/7802

    Abstract: A method for introducing impurity into a semiconductor substrate includes bringing a solution containing a compound of an impurity element into contact with a primary surface of a semiconductor substrate; and irradiating the primary surface of the semiconductor substrate with a laser beam through the solution to raise a temperature of the primary surface of the semiconductor substrate at a position irradiated by the laser beam so as to dope the impurity element into the semiconductor substrate. The laser beam irradiation is performed such that the raised temperature does not return to room temperature until a prescribed dose of the impurity element is caused to be doped into the semiconductor substrate.

    Abstract translation: 将杂质引入半导体衬底的方法包括使含有杂质元素的化合物的溶液与半导体衬底的主表面接触; 以及通过所述溶液用激光束照射所述半导体衬底的所述主表面,以在由所述激光束照射的位置处升高所述半导体衬底的主表面的温度,以将所述杂质元素掺杂到所述半导体衬底中。 执行激光束照射,使得升高的温度不会恢复到室温,直到使规定剂量的杂质元素掺杂到半导体衬底中。

    Method of Manufacturing N-Doped Graphene and Electrical Component Using NH4F, and Graphene and Electrical Component Thereby
    10.
    发明申请
    Method of Manufacturing N-Doped Graphene and Electrical Component Using NH4F, and Graphene and Electrical Component Thereby 有权
    使用NH4F,石墨烯和电子元件制造N掺杂的石墨烯和电气元件的方法

    公开(公告)号:US20150280011A1

    公开(公告)日:2015-10-01

    申请号:US14256895

    申请日:2014-04-18

    Abstract: This disclosure relates to a method of manufacturing n-doped graphene and an electrical component using ammonium fluoride (NH4F), and to graphene and an electrical component thereby. An example method of manufacturing n-doped graphene includes (a) preparing graphene and ammonium fluoride (NH4F); and (b) exposing the graphene to the ammonium fluoride (NH4F), wherein through (b), a fluorine layer is formed on part or all of upper and lower surfaces of a graphene layer, and ammonium ions are physisorbed to part or all of the upper and lower surfaces of the graphene layer or defects between carbon atoms of the graphene layer, thereby maintaining or further improving superior electrical properties of graphene including charge mobility while performing n-doping of graphene.

    Abstract translation: 本公开内容涉及使用氟化铵(NH 4 F)制造n掺杂石墨烯的方法和由此形成的石墨烯和电气部件的方法。 制造n掺杂石墨烯的示例性方法包括(a)制备石墨烯和氟化铵(NH 4 F); 和(b)将石墨烯暴露于氟化铵(NH 4 F)中,其中通过(b)在石墨烯层的上表面和下表面的一部分或全部上形成氟层,并将铵离子物理吸附到部分或全部 石墨烯层的上表面和下表面或石墨烯层的碳原子之间的缺陷,由此维持或进一步改善石墨烯的优异的电性能,包括电荷迁移率,同时进行石墨烯的n掺杂。

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