公开(公告)号：US07177186B2

公开(公告)日：2007-02-13

申请号：US11391509

申请日：2006-03-28

申请人： Daniel R. Elmhurst ,  Karthikeyan Ramamurthi ,  Quan H. Ngo ,  Robert L. Melcher

发明人： Daniel R. Elmhurst ,  Karthikeyan Ramamurthi ,  Quan H. Ngo ,  Robert L. Melcher

IPC分类号： G11C16/06

CPC分类号： G11C11/5628 ,  G11C11/56 ,  G11C16/04 ,  G11C16/10 ,  G11C29/16 ,  G11C29/36 ,  G11C29/38 ,  G11C29/50004 ,  G11C29/52 ,  G11C2029/5002 ,  G11C2211/5641

摘要： An apparatus and technique for testing of multi-level cells (MLC) in a memory storage device using a high bandwidth data path architecture. The technique includes hardware for obtaining a first data and a second data from a multilevel cell memory. The first data is different from the second data. The first data and second data are compared and, based at least in part on this comparison, the multilevel cell memory is programmed. Programming the multilevel cell memory includes accessing memory cells in the multilevel cell memory and determining the number of bits per memory cell of the first data that need programming.

摘要翻译： 一种用于使用高带宽数据路径架构在存储器存储设备中测试多级单元（MLC）的装置和技术。 该技术包括用于从多级单元存储器获得第一数据和第二数据的硬件。 第一数据与第二数据不同。 比较第一数据和第二数据，并且至少部分地基于该比较，对多电平单元存储器进行编程。 编程多电平单元存储器包括访问多电平单元存储器中的存储单元，并确定需要编程的第一数据的每个存储单元的位数。

公开(公告)号：US5721602A

公开(公告)日：1998-02-24

申请号：US540860

申请日：1995-10-11

申请人： Chandrasekhar Narayan ,  Evan Colgan ,  Kei-Hsiung Yang ,  Robert L. Melcher ,  Lawrence S. Mok ,  Leathen Shi ,  Thomas M. Cipolla

发明人： Chandrasekhar Narayan ,  Evan Colgan ,  Kei-Hsiung Yang ,  Robert L. Melcher ,  Lawrence S. Mok ,  Leathen Shi ,  Thomas M. Cipolla

IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/136 ,  G09F9/00 ,  H04N5/74

CPC分类号： G02F1/133385 ,  G02F1/133308 ,  G02F1/136 ,  G02F2001/133322 ,  G02F2001/133325

摘要： A liquid crystal element, a packaging structure providing thermal and alignment control, a display device including the same, and methods of fabrication and assembly are provided. The liquid crystal element includes: a semiconductor wafer, having microcircuitry and an array of reflective pixels; a layer of electro-optical responsive liquid crystal medium, of uniform thickness, disposed on the reflective pixels; a transparent conductive layer positioned on the liquid crystal, being substantially parallel to the reflective layers, to ensure a uniform thickness of the liquid crystal; and an insulative transparent layer provided on the conductive layer. The liquid crystal element is laminated to an optically flat substrate to limit the out-of-plane distortions thereof. The structure formed by element and substrate are disposed in a substrate holder which is mounted to a wiring board, and coupled to voltage sources for actuating the liquid crystal. During mounting, an aligning fixture is used to ensure proper orientation of the element relative to the related optical elements. Once the element is positioned, a heat sink is coupled to the rear surface of the substrate holder to dissipate heat.

摘要翻译： 提供液晶元件，提供热和对准控制的封装结构，包括该液晶元件的显示装置，以及制造和组装方法。 液晶元件包括：具有微电路的半导体晶片和反射像素阵列; 设置在反射像素上的均匀厚度的电光响应液晶介质层; 位于液晶上的透明导电层基本上平行于反射层，以确保液晶的均匀厚度; 以及设置在导电层上的绝缘透明层。 将液晶元件层压到光学平面基板上以限制其平面外失真。 由元件和基板形成的结构设置在安装到布线板上的基板保持器中，并连接到用于致动液晶的电压源。 在安装期间，使用对准夹具来确保元件相对于相关光学元件的正确取向。 一旦元件被定位，散热器耦合到衬底保持器的后表面以散热。

公开(公告)号：US4504727A

公开(公告)日：1985-03-12

申请号：US454913

申请日：1982-12-30

申请人： Robert L. Melcher ,  Sheree H. Wen

发明人： Robert L. Melcher ,  Sheree H. Wen

IPC分类号： B23K26/03 ,  B23K26/38 ,  H05K1/02 ,  H05K3/00

CPC分类号： B23K26/0622 ,  B23K26/03 ,  B23K26/382 ,  B23K26/40 ,  B23K26/402 ,  B23K26/705 ,  H05K3/0035 ,  B23K2201/42 ,  B23K2203/12 ,  B23K2203/172 ,  B23K2203/42 ,  B23K2203/50 ,  H05K1/0269 ,  H05K2203/163

摘要： A laser drilling control system utilizing photoacoustic feedback is described. The control system provides an accurate monitoring of the laser drilling of a multilayered printed circuit board thereby allowing uniform drilling through layers of different optical and photoacoustic properties by both analyzing the photoacoustic feedback signals received, and adjusting optimally the laser parameters such as pulse duration, wavelength, energy, pulse repetition rate, and the number of pulses, for each successive layer. The system also provides an end point detection which prevents underdrilling overheating, and overdrilling of underlying layers and associated damages. According to another aspect of this invention, the control system can be used as a sensitive misregistration detector for aligning the laser beam to a selected drill site for subsequent drilling at the selected drill site.

摘要翻译： 描述了利用光声反馈的激光钻孔控制系统。 控制系统提供对多层印刷电路板的激光钻孔的精确监测，从而通过分析所接收的光声反馈信号来允许通过不同光学和光声特性的层的均匀钻孔，并且最佳地调整激光参数，例如脉冲持续时间，波长 ，能量，脉冲重复率和脉冲数，对于每个连续层。 该系统还提供了一个终点检测，可以防止过度钻井过热，以及下层破裂和相关破坏。 根据本发明的另一方面，控制系统可以用作敏感对准检测器，用于将激光束对准所选择的钻孔位置，用于随后在选定的钻孔位置进行钻孔。