公开(公告)号：US20120140571A1

公开(公告)日：2012-06-07

申请号：US13398518

申请日：2012-02-16

Applicant: Hemantha Kumar WICKRAMASINGHE ,  Kailash GOPALAKRISHNAN

Inventor： Hemantha Kumar WICKRAMASINGHE ,  Kailash GOPALAKRISHNAN

IPC: G11C7/10 ,  H03K19/173

CPC classification number: H01L27/1203 ,  G11C16/08 ,  H01L21/84 ,  H01L27/115 ,  Y10S977/936 ,  Y10S977/938 ,  Y10S977/958

Abstract: An electronically scannable multiplexing device is capable of addressing multiple bits within a volatile or non-volatile memory cell. The multiplexing device generates an electronically scannable conducting channel with two oppositely formed depletion regions. The depletion width of each depletion region is controlled by a voltage applied to a respective control gate at each end of the multiplexing device. The present multi-bit addressing technique allows, for example, 10 to 100 bits of data to be accessed or addressed at a single node. The present invention can also be used to build a programmable nanoscale logic array or for randomly accessing a nanoscale sensor array.

Abstract translation: 电子扫描复用设备能够寻址易失性或非易失性存储器单元内的多个位。 多路复用装置产生具有两个相对形成的耗尽区的电子扫描导电通道。 每个耗尽区的耗尽宽度由施加到多路复用器件每端的相应控制栅极的电压控制。 目前的多位寻址技术允许例如在单个节点上访问或寻址10到100位的数据。 本发明还可用于构建可编程纳米尺度逻辑阵列或用于随机访问纳米级传感器阵列。

公开(公告)号：US07692244B2

公开(公告)日：2010-04-06

申请号：US11926025

申请日：2007-10-28

Applicant: Hemantha Kumar Wickramasinghe ,  Kailash Gopalakrishnan

Inventor： Hemantha Kumar Wickramasinghe ,  Kailash Gopalakrishnan

IPC: H01L27/01 ,  H01L27/12 ,  H01L31/0392

CPC classification number: H01L27/1203 ,  G11C16/08 ,  H01L21/84 ,  H01L27/115 ,  Y10S977/936 ,  Y10S977/938 ,  Y10S977/958

Abstract: An electronically scannable multiplexing device is capable of addressing multiple bits within a volatile or non-volatile memory cell. The multiplexing device generates an electronically scannable conducting channel with two oppositely formed depletion regions. The depletion width of each depletion region is controlled by a voltage applied to a respective control gate at each end of the multiplexing device. The present multi-bit addressing technique allows, for example, 10 to 100 bits of data to be accessed or addressed at a single node. The present invention can also be used to build a programmable nanoscale logic array or for randomly accessing a nanoscale sensor array.

公开(公告)号：US07514327B2

公开(公告)日：2009-04-07

申请号：US11926031

申请日：2007-10-28

Applicant: Hemantha Kumar Wickramasinghe ,  Kailash Gopalakrishnan

Inventor： Hemantha Kumar Wickramasinghe ,  Kailash Gopalakrishnan

IPC: H01L21/84

CPC classification number: H01L27/1203 ,  G11C16/08 ,  H01L21/84 ,  H01L27/115 ,  Y10S977/936 ,  Y10S977/938 ,  Y10S977/958

Abstract: An electronically scannable multiplexing device is capable of addressing multiple bits within a volatile or non-volatile memory cell. The multiplexing device generates an electronically scannable conducting channel with two oppositely formed depletion regions. The depletion width of each depletion region is controlled by a voltage applied to a respective control gate at each end of the multiplexing device. The present multi-bit addressing technique allows, for example, 10 to 100 bits of data to be accessed or addressed at a single node. The present invention can also be used to build a programmable nanoscale logic array or for randomly accessing a nanoscale sensor array.

Abstract translation: 电子扫描复用设备能够寻址易失性或非易失性存储器单元内的多个位。 多路复用装置产生具有两个相对形成的耗尽区的电子扫描导电通道。 每个耗尽区的耗尽宽度由施加到多路复用器件每端的相应控制栅极的电压控制。 目前的多位寻址技术允许例如在单个节点上访问或寻址10到100位的数据。 本发明还可用于构建可编程纳米尺度逻辑阵列或用于随机访问纳米级传感器阵列。

公开(公告)号：US20080251840A1

公开(公告)日：2008-10-16

申请号：US11926025

申请日：2007-10-28

Applicant: HEMANTHA KUMAR WICKRAMASINGHE ,  Kailash Gopalakrishnan

Inventor： HEMANTHA KUMAR WICKRAMASINGHE ,  Kailash Gopalakrishnan

IPC: H01L29/76

CPC classification number: H01L27/1203 ,  G11C16/08 ,  H01L21/84 ,  H01L27/115 ,  Y10S977/936 ,  Y10S977/938 ,  Y10S977/958

Abstract: An electronically scannable multiplexing device is capable of addressing multiple bits within a volatile or non-volatile memory cell. The multiplexing device generates an electronically scannable conducting channel with two oppositely formed depletion regions. The depletion width of each depletion region is controlled by a voltage applied to a respective control gate at each end of the multiplexing device. The present multi-bit addressing technique allows, for example, 10 to 100 bits of data to be accessed or addressed at a single node. The present invention can also be used to build a programmable nanoscale logic array or for randomly accessing a nanoscale sensor array.

Abstract translation: 电子扫描复用设备能够寻址易失性或非易失性存储器单元内的多个位。 多路复用装置产生具有两个相对形成的耗尽区的电子扫描导电通道。 每个耗尽区的耗尽宽度由施加到多路复用器件每端的相应控制栅极的电压控制。 目前的多位寻址技术允许例如在单个节点上访问或寻址10到100位的数据。 本发明还可用于构建可编程纳米尺度逻辑阵列或用于随机访问纳米级传感器阵列。

公开(公告)号：US07385234B2

公开(公告)日：2008-06-10

申请号：US11116700

申请日：2005-04-27

Applicant: Kailash Gopalakrishnan ,  Hemantha Kumar Wickramasinghe

Inventor： Kailash Gopalakrishnan ,  Hemantha Kumar Wickramasinghe

IPC: H01L29/86

CPC classification number: H01L27/115 ,  G11C16/08 ,  H01L21/84 ,  H01L27/1203

Abstract: A memory device or a logic device that uses an electronically scannable multiplexing device capable of addressing multiple bits within a volatile or non-volatile memory cell. The multiplexing device generates an electronically scannable conducting channel with two oppositely formed depletion regions. The depletion width of each depletion region is controlled by a voltage applied to a respective control gate at each end of the multiplexing device. The present multi-bit addressing technique allows, for example, 10 to 100 bits of data to be accessed or addressed at a single node. The present invention can also be used to build a programmable nanoscale logic array or for randomly accessing a nanoscale sensor array.

Abstract translation: 一种存储器件或逻辑器件，其使用能够寻址易失性或非易失性存储器单元内的多个位的电子扫描复用器件。 多路复用装置产生具有两个相对形成的耗尽区的电子扫描导电通道。 每个耗尽区的耗尽宽度由施加到多路复用器件每端的相应控制栅极的电压控制。 目前的多位寻址技术允许例如在单个节点上访问或寻址10到100位的数据。 本发明还可用于构建可编程纳米尺度逻辑阵列或用于随机访问纳米级传感器阵列。

公开(公告)号：US06567172B1

公开(公告)日：2003-05-20

申请号：US09635202

申请日：2000-08-09

Applicant: Philip Charles Danby Hobbs ,  Richard John Lebel ,  Martin Patrick O'Boyle ,  Theodore Gerard van Kessel ,  Hemantha Kumar Wickramasinghe

Inventor： Philip Charles Danby Hobbs ,  Richard John Lebel ,  Martin Patrick O'Boyle ,  Theodore Gerard van Kessel ,  Hemantha Kumar Wickramasinghe

IPC: G01B902

CPC classification number: G01B11/0675

Abstract: An optical system includes a spectrometer and a multipass optical probe. The multipass optical probe includes a retroreflective element such that light propagating, in a first direction, from the probe to a sample under test and passing through or reflecting from the sample under test, is reflected back in a second direction opposite the first direction, so as to pass through the sample under test a total of at least two times.

Abstract translation: 光学系统包括光谱仪和多光学光学探针。 多次光学探头包括回射元件，使得在第一方向上从探针传播到被测试样品并通过或从被测样品反射的光在与第一方向相反的第二方向上被反射回来，因此 通过待测试样品总共至少两次。

公开(公告)号：US06510120B2

公开(公告)日：2003-01-21

申请号：US09773323

申请日：2001-01-31

Applicant: Hemantha Kumar Wickramasinghe ,  Hendrik F. Hamann ,  Yves Martin

Inventor： Hemantha Kumar Wickramasinghe ,  Hendrik F. Hamann ,  Yves Martin

IPC: G11B700

CPC classification number: G11B9/00 ,  B82Y10/00 ,  G11B9/14 ,  G11B9/1409 ,  G11B9/1418 ,  Y10S977/725 ,  Y10S977/833 ,  Y10S977/932 ,  Y10S977/947

Abstract: The invention discloses a method capable of writing/erasing high-density data, preferably on a phase-change recording media. A preferred embodiment of the invention features a novel thermal near-field heater that may be employed in an assembly enabled by the present method. The method may be preferably used for writing in a substantially thermal near-field mode. The invention provides advantages of writing densities greater than that of diffraction limited systems, for example, writing densities of approximately greater than 100 Gbit/inch2, and writing speeds approximately greater than 100 MHz.

Abstract translation: 本发明公开了一种能够写入/擦除高密度数据的方法，优选地在相变记录介质上。 本发明的一个优选实施例的特征在于一种新的热近场加热器，其可以用于通过本方法实现的组件中。 该方法可以优选用于以基本上热的近场模式进行写入。 本发明提供的写入密度大于衍射受限系统的密度，例如大约大于100Gbit / inch2的写入密度以及大约大于100MHz的写入速度。

公开(公告)号：US06493183B1

公开(公告)日：2002-12-10

申请号：US09608848

申请日：2000-06-29

Applicant: Prakash Kasiraj ,  Neil Leslie Robertson ,  Hemantha Kumar Wickramasinghe

Inventor： Prakash Kasiraj ,  Neil Leslie Robertson ,  Hemantha Kumar Wickramasinghe

IPC: G11B5147

CPC classification number: G11B5/3903 ,  G11B5/127 ,  G11B13/045 ,  G11B2005/0005 ,  G11B2005/0021

Abstract: A thermally-assisted magnetic recording disk drive records data by heating a small region of the magnetic layer on the disk to near or above its Curie temperature while a write field is applied by a thin film inductive write head. The thin film inductive write head includes an electrically resistive heater located in the write gap between the pole tips of the write head. The resistive heater is sandwiched between first and second spacer layers that are located between the pole tips of the write head. In a current-perpendicular-to-the plane (CPP) embodiment, the spacer layers are electrically conductive and the pole tips serve as the electrical leads to provide electrical current in a direction generally perpendicular to the layer of resistive heater material. In a current-in-the plane (CIP) embodiment, the spacer layers are formed of insulating material and electrical leads are formed as portions of a film between the spacer layers and in contact with each side of the resistive heater. The width of the resistive heater is less than the width of the pole tips. Thus since only the region of the magnetic layer on the disk that is heated by the resistive heater can be written by the pole tips of the write head, the data track width on the disk is defined by the width of the resistive heater, not by the geometry of write head pole tips.

Abstract translation: 热辅助磁记录磁盘驱动器通过在薄膜感应写头施加写入场的同时将盘上的磁性层的小区域加热到靠近或高于其居里温度来记录数据。 薄膜感应写头包括位于写入头的极尖之间的写入间隙中的电阻加热器。 电阻加热器被夹在位于写入头的极尖之间的第一和第二间隔层之间。 在电流垂直于平面（CPP）实施例中，间隔层是导电的，并且极尖用作电引线以在大致垂直于电阻加热器材料层的方向上提供电流。 在电流平面（CIP）实施例中，间隔层由绝缘材料形成，并且电引线形成为间隔层之间的膜的一部分并且与电阻加热器的每一侧接触。 电阻加热器的宽度小于极尖的宽度。 因此，由于只有由电阻加热器加热的磁盘上的磁性层的区域可以由写入头的极尖写入，所以盘上的数据磁道宽度由电阻加热器的宽度定义，而不是由 写磁头尖端的几何形状。

公开(公告)号：US6052249A

公开(公告)日：2000-04-18

申请号：US129547

申请日：1998-08-05

Applicant: David William Abraham ,  Anthony Paul Praino ,  Mark Edward Re ,  Hemantha Kumar Wickramasinghe

Inventor： David William Abraham ,  Anthony Paul Praino ,  Mark Edward Re ,  Hemantha Kumar Wickramasinghe

IPC: G01N25/72 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/596 ,  G11B5/60 ,  G11B5/82 ,  G11B11/00 ,  G11B11/06 ,  G11B13/00 ,  G11B17/32 ,  G11B19/04 ,  G11B20/10 ,  G11B20/24 ,  G11B33/10 ,  G11B5/09

CPC classification number: G11B20/10009 ,  G01N25/72 ,  G11B11/00 ,  G11B13/00 ,  G11B17/32 ,  G11B20/24 ,  G11B33/10 ,  G11B5/00 ,  G11B5/012 ,  G11B5/59683 ,  G11B5/607 ,  G11B11/06 ,  G11B19/04 ,  G11B2005/0021 ,  G11B5/02 ,  G11B5/59633 ,  G11B5/6005 ,  G11B5/82

Abstract: A method and apparatus for accessing a data storage medium having raised and lowered portions indicative of data stored on the medium. Energy is supplied to a sensor which is moved relative to, and in close proximity to, a surface of the medium on which the data in the form of raised and lowered portions is stored. The sensor and the storage medium are moved in relation thereto, such that the sensor remains at a substantially constant fly spacing therefrom. A decrease in temperature of the sensor is detected when it is in proximity to a variation, i.e., a raised portion on the medium. This detected decrease in temperature associated with a raised variation, e.g., asperity, can be used as the basis upon which to detect the data on the data storage medium. The data storage medium may also contain magnetically stored data, such that the surface variations and the magnetic characteristics of the data storage medium can both be utilized to store data thereon.

Abstract translation: 一种用于访问具有指示存储在介质上的数据的升高和降低部分的数据存储介质的方法和装置。 能量被供应到传感器，该传感器相对于其上存储有升高和降低部分形式的数据的介质的表面并且非常接近地移动。 传感器和存储介质相对于其移动，使得传感器保持与其基本恒定的飞行距离。 当传感器接近变化即介质上的升高部分时，检测传感器温度的降低。 检测到与升高的变化（例如粗糙度）相关联的温度的下降可以用作检测数据存储介质上的数据的基础。 数据存储介质还可以包含磁存储的数据，使得数据存储介质的表面变化和磁特性都可以用于在其上存储数据。

公开(公告)号：US5646731A

公开(公告)日：1997-07-08

申请号：US511166

申请日：1995-08-04

Applicant: Hemantha Kumar Wickramasinghe ,  Frederic Zenhausern ,  Yves Martin ,  Martin Patrick O'Boyle

Inventor： Hemantha Kumar Wickramasinghe ,  Frederic Zenhausern ,  Yves Martin ,  Martin Patrick O'Boyle

IPC: G01N37/00 ,  G01Q30/02 ,  G01Q60/18 ,  G01B9/02

CPC classification number: G01Q60/22 ,  B82Y20/00 ,  B82Y35/00

Abstract: A method for detecting and/or imaging a workpiece. In a detection aspect, the method comprises the steps of sampling an electromagnetic wave packet representative of workpiece properties and comprising encoded wave information derivable from a multi-pole interactive coupling between a probe tip and the workpiece; decoding said electromagnetic wave packet by interrogating at least one of its phase and amplitude information; and, using the decoding information as a means for detecting the presence of the workpiece. In an imaging aspect, the method includes incorporating the previous steps in a scanning operation for developing an image representative of the workpiece.

Abstract translation: 一种用于检测和/或成像工件的方法。 在检测方面，该方法包括以下步骤：对代表工件属性的电磁波包进行采样，并且包括可从探针尖端和工件之间的多极交互耦合导出的编码波信息; 通过询问其相位和幅度信息中的至少一个来解码所述电磁波分组; 并且使用解码信息作为检测工件的存在的装置。 在成像方面，该方法包括将前述步骤结合在用于显影代表工件的图像的扫描操作中。