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    • 1. 发明授权
    • Methods of forming bipolar junction transistors
    • 形成双极结晶体管的方法
    • US5721147A
    • 1998-02-24
    • US712289
    • 1996-09-11
    • Kwang-Joon Yoon
    • Kwang-Joon Yoon
    • H01L29/73H01L21/328H01L21/331H01L29/417H01L29/732H01L21/265
    • H01L29/66272H01L29/41708H01L29/7322Y10S148/01Y10S148/011
    • Methods of forming bipolar junction transistors include the steps of forming a first insulating layer on a face of a semiconductor substrate containing a collector region of first conductivity type therein and then forming an opening in the first insulating layer to expose the collector region at the face. An extrinsic base region contact layer of second conductivity type is then formed on the first insulating layer and in the opening and then an extrinsic base region of second conductivity type is formed in the collector region, at the opening in the first insulating layer. Next, a second insulating layer is formed on the extrinsic base region contact layer and first insulating layer, using the first insulating layer as a mask to prevent contact between the second insulating layer and the collector region at the face. To complete the transistor, an intrinsic base region of second conductivity type is then formed in the collector region and then an emitter region of first conductivity type is formed in the intrinsic base region.
    • 形成双极结型晶体管的方法包括以下步骤:在包含第一导电类型的集电极区域的半导体衬底的表面上形成第一绝缘层,然后在第一绝缘层中形成开口以露出面部的集电极区域。 然后在第一绝缘层和开口中形成第二导电类型的非本征基区接触层,然后在第一绝缘层的开口处在集电极区域形成第二导电类型的非本征基区。 接下来,使用第一绝缘层作为掩模,在外部基极区域接触层和第一绝缘层上形成第二绝缘层,以防止第二绝缘层和面部的集电区之间的接触。 为了完成晶体管,在集电极区域形成第二导电类型的本征基极区域,然后在本征基极区域形成第一导电类型的发射极区域。
    • 6. 发明授权
    • Compressed air engine and flying object equipped therewith
    • 压缩空气发动机和配备的飞行物体
    • US06530541B1
    • 2003-03-11
    • US10167728
    • 2002-06-11
    • Jong Bok WooJa Kook KooKwang Joon YoonYun Je Kim
    • Jong Bok WooJa Kook KooKwang Joon YoonYun Je Kim
    • B64C3300
    • F01B17/02A63H27/008A63H29/16B64C33/025B64C39/028B64C2201/025B64D27/02
    • A compressed air engine and a flying object using the engine are disclosed. The flying object includes the following elements. That is, the compressed air engine includes: a top member 11 provided with an air inlet 16; an upper cylinder 12; a lower cylinder 13; a bottom member 14; an air pipe, for passing of a compressed air; a shuttle 20 for performing up/down movements within a cylinder formed by the upper and lower cylinders; and a pair of pistons 21a and 21b over and under the shuttle respectively. The pair of the wings are symmetrically and pivotally assembled to the shuttle and the lower cylinder through securing shafts so as to perform up/down movements in accordance with the up/down movements of the shuttle. A compressed air container 2 is assembled to the bottom of the bottom member, for storing the compressed air.
    • 公开了使用该发动机的压缩空气发动机和飞行物体。 飞行物体包括以下元件。 也就是说,压缩空气发动机包括:设置有进气口16的顶部构件11; 上筒12; 下筒13; 底部构件14; 用于通过压缩空气的空气管; 用于在由上下缸形成的缸内进行升/降运动的梭20; 以及分别在梭子上方和下方的一对活塞21a和21b。 一对翼通过固定轴对称地和枢转地组装到梭子和下部圆筒上,以便根据梭子的上下运动来进行上/下移动。 压缩空气容器2组装到底部件的底部,用于储存压缩空气。
    • 10. 发明授权
    • Curved shape actuator device composed of electro active layer and fiber composite layers
    • 由电活性层和纤维复合层组成的弯曲形状致动器装置
    • US07081701B2
    • 2006-07-25
    • US10468416
    • 2002-03-14
    • Kwang Joon YoonHoon Cheol Park
    • Kwang Joon YoonHoon Cheol Park
    • H01L41/08
    • H01L41/0926Y10S310/80
    • The piezo-composite curved actuator of the present invention includes a piezoelectric layer 10, a lightweight fiber-reinforced lower composite layer 20 with a high GTE (coefficient of thermal expansion) and a low modulus, which is placed under the piezoelectric layer, a lightweight fiber-reinforced upper composite layer 30 with a low GTE and a high modulus, which is placed on the piezoelectric layer, and an insulator layer 23 placed between the piezoelectric layer and the upper composite layer. The piezo-composite curved actuator may further include an insulator layer 24 placed on the upper composite layer. Also, the piezo-composite curved actuator may further include insulator layers 22 placed between the insulator layer 23 and the lower composite layer 20 at the both sides of the piezoelectric layer 10.
    • 本发明的压电复合弯曲致动器包括压电层10,具有高GTE(热膨胀系数)和低模量的轻质纤维增强下复合层20,其被放置在压电层下方,轻质 放置在压电层上的具有低GTE和高模量的纤维增强上复合层30和置于压电层和上复合层之间的绝缘体层23。 压电复合弯曲致动器还可以包括放置在上复合层上的绝缘体层24。 此外,压电复合弯曲致动器还可以包括位于压电层10两侧的绝缘体层23和下复合层20之间的绝缘体层22。