公开(公告)号：US5708327A

公开(公告)日：1998-01-13

申请号：US665566

申请日：1996-06-18

Applicant: John O. O'Boyle

Inventor： John O. O'Boyle

IPC: H01J1/304 ,  H01J19/24

CPC classification number: H01J1/3042 ,  H01J2201/30446

Abstract: A flat panel display device (50) includes magnetic field emitter elements (52). The emitter elements (52) include a dopant ferromagnetic material (56) used to produce a permanent magnet in the emitter elements (52). The permanent magnet in the emitter elements (52) generates a magnetic field (B) used to focus the electrons emitted from the tips of the emitter elements (52). The flat panel display device (50) further includes a voltage source (70) for producing an electric field (E) between a cathode electrode (54) having a gate electrode (58), and an anode electrode (60) having phosphor regions (62) disposed between black matrix regions (61). The magnetic field (B) provides a restoring magnetic force to collimate the electrons toward the phosphor regions (62) to produce a high brightness display.

Abstract translation: 平板显示装置（50）包括磁场发射体元件（52）。 发射极元件（52）包括用于在发射极元件（52）中产生永磁体的掺杂剂铁磁材料（56）。 发射体元件（52）中的永磁体产生用于聚焦从发射体元件（52）的尖端发射的电子的磁场（B）。 平板显示装置（50）还包括用于在具有栅电极（58）的阴极（54）和具有荧光体区域（58）的阳极电极（60）之间产生电场（E）的电压源 62）设置在黑矩阵区域（61）之间。 磁场（B）提供恢复磁力以将电子准直到荧光体区域（62）以产生高亮度显示。

公开(公告)号：US5883522A

公开(公告)日：1999-03-16

申请号：US744362

申请日：1996-11-07

Applicant: John O. O'Boyle

Inventor： John O. O'Boyle

IPC: B25B5/06 ,  B25B11/00 ,  G01R1/04 ,  H01L21/687 ,  B65H9/08 ,  G01R31/26

CPC classification number: H01L21/68721 ,  B25B11/007 ,  B25B5/06 ,  B25B5/061 ,  B25B5/062 ,  G01R1/04 ,  Y10S269/903 ,  Y10S414/135 ,  Y10S414/141

Abstract: A retaining apparatus for retaining a semiconductor wafer on the surface of a chuck. The retaining apparatus includes elongate shafts each positioned adjacent to a perimeter of the surface of the chuck and so that a lengthwise axis of each shaft is substantially perpendicular to the surface of the chuck. Two shafts are located on one side of a diameter of the surface of the chuck and two additional shafts are located on another side of the diameter of the surface of the chuck. Retainer members are connected to each of the shafts. The retainer members extend over the surface of the chuck and portions of the semiconductor wafer resting thereon in order to retain the semiconductor wafer thereagainst when the retainer members are in a closed position. Chambers each receive another end of each of the shafts. A vacuum source is coupled to the chambers to provide suction inside the chambers to pull the shafts deeper into their respective chambers so that the retainer members move from an open position where they are spaced apart from the semiconductor wafer to the closed position where they contact portions of the semiconductor wafer. Methods of retaining a semiconductor wafer on a first surface of a chuck and testing a semiconductor wafer are also disclosed.

Abstract translation: 一种用于将半导体晶片保持在卡盘表面上的保持装置。 保持装置包括细长轴，每个细长轴定位成与卡盘的表面的周边相邻，并且使得每个轴的纵向轴线基本上垂直于卡盘的表面。 两个轴位于卡盘表面直径的一侧，另外两个轴位于卡盘表面直径的另一侧。 保持构件连接到每个轴。 保持构件在卡盘的表面上延伸并且保持在其上的半导体晶片的部分，以便当保持构件处于关闭位置时将半导体晶片保持在其上。 每个腔都接收每个轴的另一端。 真空源耦合到室以在室内提供抽吸以将轴拉深到其相应的室中，使得保持器构件从它们与半导体晶片间隔开的打开位置移动到其接触部分的关闭位置 的半导体晶片。 还公开了将半导体晶片保持在卡盘的第一表面上并测试半导体晶片的方法。