公开(公告)号：DE60307793T2

公开(公告)日：2007-08-23

申请号：DE60307793

申请日：2003-02-27

Applicant: INFINEON TECHNOLOGIES AG ,  IBM

Inventor： IYER S SUNDAR K ,  IYER SUBRAMANIAN S ,  KOTHANDARAMAN CHANDRASEKHARAN ,  NARAYAN CHANDRASEKHAR

IPC: H01L23/525

Abstract: The present invention provides a system, apparatus and method of programming via electromigration. A semiconductor fuse which includes a cathode and an anode coupled by a fuse link having an electrically conductive component, such as silicide, is coupled to a power supply. A potential is applied across the conductive fuse link via the cathode and anode in which the potential is of a magnitude to initiate electromigration of silicide from a region of the semiconductor fuse reducing the conductivity of the fuse link. The electromigration is enhanced by effectuating a temperature gradient between the fuse link and one of the cathode and anode responsive to the applied potential. Portions of the semiconductor fuse are selectively cooled in a heat transfer relationship to increase the temperature gradient. In one embodiment, a heat sink is applied to the cathode. The heat sink can be a layer of metal coupled in close proximity to the cathode while insulated from the fuse link. In another embodiment, the temperature gradient is increased by selectively varying the thickness of the underlying oxide layer such that the cathode is disposed on a thinner layer of oxide than the fuse link.

公开(公告)号：DE60034611D1

公开(公告)日：2007-06-14

申请号：DE60034611

申请日：2000-02-04

Applicant: IBM ,  INFINEON TECHNOLOGIES AG

Inventor： WEBER STEFAN J ,  IGGULDEN ROY ,  NARAYAN CHANDRASEKHAR ,  BRINTZINGER AXEL CHRISTOPH ,  HOINKIS MARK ,  VAN DEN BERG ROBERT

IPC: H01H85/00 ,  H01H69/02 ,  H01L23/525 ,  H01L21/82

Abstract: A fuse for semiconductor devices in accordance with the present invention includes a substrate having a conductive path disposed on a surface thereof, a dielectric layer disposed on the substrate and a vertical fuse disposed perpendicularly to the surface through the dielectric layer and connecting to the conductive path, the vertical fuse forming a cavity having a liner material disposed along vertical surfaces of the cavity, the vertical surfaces being melted to blow the fuse. Methods for fabrication of the vertical fuse are also included.

公开(公告)号：DE60011190D1

公开(公告)日：2004-07-08

申请号：DE60011190

申请日：2000-07-25

Applicant: INFINEON TECHNOLOGIES AG ,  IBM

Inventor： NARAYAN CHANDRASEKHAR ,  ARNDT KENNETH ,  KIRIHATA TOSHIAKI ,  DANIEL GABRIEL ,  LACHTRUPP DAVID ,  BRINTZINGER AXEL

IPC: H01L21/82 ,  H01H85/00 ,  H01H85/02 ,  H01H85/044 ,  H01H85/046 ,  H01L21/66 ,  H01L23/525 ,  H01L27/02

Abstract: A plurality of fuses of different types, each type of fuse serving a specific purpose are positioned on a semiconductor integrated circuit wafer, wherein activating one type of fuse does not incapacitate fuses of a different type. Fuses of the first type, e.g., laser activated fuses, are primarily used for repairing defects at the wafer level, whereas fuses of the second type, e.g., electrically activated fuses, are used for repairing defects found after mounting the IC chips on a module and stressing the module at burn-in test. Defects at the module level typically are single cell failures which are cured by the electrically programmed fuses to activate module level redundancies.

公开(公告)号：DE60307793D1

公开(公告)日：2006-10-05

申请号：DE60307793

申请日：2003-02-27

Applicant: INFINEON TECHNOLOGIES AG ,  IBM

Inventor： IYER S SUNDAR K ,  IYER SUBRAMANIAN S ,  KOTHANDARAMAN CHANDRASEKHARAN ,  NARAYAN CHANDRASEKHAR

IPC: H01L23/525

Abstract: The present invention provides a system, apparatus and method of programming via electromigration. A semiconductor fuse which includes a cathode and an anode coupled by a fuse link having an electrically conductive component, such as silicide, is coupled to a power supply. A potential is applied across the conductive fuse link via the cathode and anode in which the potential is of a magnitude to initiate electromigration of silicide from a region of the semiconductor fuse reducing the conductivity of the fuse link. The electromigration is enhanced by effectuating a temperature gradient between the fuse link and one of the cathode and anode responsive to the applied potential. Portions of the semiconductor fuse are selectively cooled in a heat transfer relationship to increase the temperature gradient. In one embodiment, a heat sink is applied to the cathode. The heat sink can be a layer of metal coupled in close proximity to the cathode while insulated from the fuse link. In another embodiment, the temperature gradient is increased by selectively varying the thickness of the underlying oxide layer such that the cathode is disposed on a thinner layer of oxide than the fuse link.

公开(公告)号：DE60011190T2

公开(公告)日：2005-06-30

申请号：DE60011190

申请日：2000-07-25

Applicant: INFINEON TECHNOLOGIES AG ,  IBM

Inventor： NARAYAN CHANDRASEKHAR ,  ARNDT KENNETH ,  KIRIHATA TOSHIAKI ,  DANIEL GABRIEL ,  LACHTRUPP DAVID ,  BRINTZINGER AXEL

IPC: H01L21/82 ,  H01H85/00 ,  H01H85/02 ,  H01H85/044 ,  H01H85/046 ,  H01L21/66 ,  H01L23/525 ,  H01L27/02

Abstract: A plurality of fuses of different types, each type of fuse serving a specific purpose are positioned on a semiconductor integrated circuit wafer, wherein activating one type of fuse does not incapacitate fuses of a different type. Fuses of the first type, e.g., laser activated fuses, are primarily used for repairing defects at the wafer level, whereas fuses of the second type, e.g., electrically activated fuses, are used for repairing defects found after mounting the IC chips on a module and stressing the module at burn-in test. Defects at the module level typically are single cell failures which are cured by the electrically programmed fuses to activate module level redundancies.

公开(公告)号：EP1470583A4

公开(公告)日：2005-08-03

申请号：EP02789958

申请日：2002-11-26

Applicant: IBM

Inventor： POGGE BERNHARD H ,  YU ROY ,  PRASAD CHANDRIKA ,  NARAYAN CHANDRASEKHAR

IPC: H01L23/12 ,  H01L21/68 ,  H01L21/768 ,  H01L23/48 ,  H01L23/485 ,  H01L23/525 ,  H01L25/065 ,  H01L25/07 ,  H01L25/18

CPC classification number: H01L24/10 ,  H01L21/6835 ,  H01L21/76877 ,  H01L21/76898 ,  H01L23/481 ,  H01L23/525 ,  H01L24/13 ,  H01L24/81 ,  H01L25/0652 ,  H01L2224/03002 ,  H01L2224/0401 ,  H01L2224/05155 ,  H01L2224/05166 ,  H01L2224/05184 ,  H01L2224/0557 ,  H01L2224/05572 ,  H01L2224/05644 ,  H01L2224/06181 ,  H01L2224/13 ,  H01L2224/13099 ,  H01L2224/16145 ,  H01L2224/17181 ,  H01L2224/81005 ,  H01L2224/94 ,  H01L2924/01004 ,  H01L2924/01006 ,  H01L2924/01022 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01057 ,  H01L2924/01061 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/014 ,  H01L2924/10329 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/15787 ,  H01L2224/11 ,  H01L2224/03 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2924/013

Abstract: A process is described for semiconductor device integration at chip level or wafer level, in which vertical connections are formed through a substrate (1). A metallized feature (2) is formed in the top surface of a substrate, and a handling plate (35) is attached to the substrate. The substrate is then thinned at the bottom surface thereof to expose the bottom of the feature, to form a conducting through-via (20). The substrate may comprise a chip (44) having a device (30), e.g. a PE chip. The plate may be a wafer (65) attached to the substrate using a vertical stud/via interconnection. The substrate and plate may each have devices (30,60) fabricated therein, so that the process provides vertical wafer-level integration of the devices.

公开(公告)号：EP0806727A3

公开(公告)日：1998-05-20

申请号：EP97302760

申请日：1997-04-22

Applicant: IBM

Inventor： ALT PAUL MATTHEW ,  CHALCO PEDRO A ,  FURMAN BRUCE KENNETH ,  HORTON RAYMOND ROBERT ,  NARAYAN CHANDRASEKHAR ,  OWENS BENAL LEE JR ,  WARREN KEVIN WILSON ,  WRIGHT STEVEN LORENZ

IPC: G02F1/1343 ,  G02F1/13 ,  G02F1/1362 ,  G06F11/20 ,  G09F9/30 ,  G09G3/20 ,  G09G3/36 ,  G11C29/00

CPC classification number: G02F1/1309 ,  G02F2001/136272 ,  G09G3/3611 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2330/08 ,  G11C29/76 ,  Y10S345/904

Abstract: A matrix addressed display system designed so as to enable data line (22) repair by electronic mechanisms which is efficient and low in cost and thus increases yield. Such active data line (22) repair utilizes additional data driver (36) outputs, a defect map memory (48) in the TFT/LCD module and modification of the data stream to the data drivers (36) by additional circuits (42) between the display and the display adapter. A bus configuration on the display substrate is utilized which combines repair flexibility, low parasitic capacitance, and the ability to easily make the necessary interconnections. The number of interconnections is kept to a minimum, the connections are reliable, and the connections may be made with conventional wire bond or laser bond technology, or disk bond technology.

公开(公告)号：WO0163648A3

公开(公告)日：2002-04-18

申请号：PCT/US0105373

申请日：2001-02-20

Applicant: INFINEON TECHNOLOGIES CORP ,  IBM

Inventor： NARAYAN CHANDRASEKHAR ,  BRINTZINGER AXEL ,  EINSPRUCH FRED L ,  HAFFNER HENNING ,  THOMAS ALAN C

IPC: H01L23/525 ,  G03F1/14

CPC classification number: H01L23/5258 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method of making a photolithography mask for use in creating an electrical fuse on a semiconductor structure comprises initially determining a pattern for a desired electrical fuse, with the pattern including a fuse portion of substantially constant width except for a localized narrowed region of the fuse portion at which the electrical fuse is designed to blow. The method then includes providing a photolithography mask substrate and creating on the photolithography mask substrate a fuse mask element adapted to absorb transmission of an energy beam. The fuse mask element has a first mask portion of substantially constant width corresponding to the desired electrical fuse pattern portion of substantially constant width, and a second mask portion corresponding to the localized narrowed region of the fuse portion. The second mask portion comprises either an additional mask element spaced from the first mask portion, a narrowed width portion, or a gap in the first mask portion. The second mask portion is of a configuration sufficient to create a latent image of the electrical fuse pattern, including the localized narrowed region of the fuse portion at which the electrical fuse is designed to blow, upon passing the energy beam through the photolithography mask and onto a resist layer. Preferably, the fuse portion of substantially constant width on the determined fuse pattern has a design width less than about 0.25 mu m, and wherein the localized narrowed region of the fuse portion has a design width less than the design width of the fuse portion.

Abstract translation: 制造用于在半导体结构上形成电熔丝的光刻掩模的方法包括：首先确定用于期望的电熔丝的图案，其中该图案包括除了熔丝部分的局部变窄的区域之外基本恒定宽度的熔丝部分 在此电熔丝被设计为吹塑。 该方法然后包括提供光刻掩模衬底并且在光刻掩模衬底上产生适于吸收能量束的透射的熔丝掩模元件。 熔丝掩模元件具有基本恒定宽度的第一掩模部分和与熔丝部分的局部缩窄区域对应的第二掩模部分，第一掩模部分对应于基本恒定宽度的期望电熔丝图案部分。 第二掩模部分包括与第一掩模部分隔开的另外的掩模元件，变窄的宽度部分或第一掩模部分中的间隙。 第二掩模部分具有足以产生电熔丝图案的潜像的配置，该电图案包括保险丝部分的局部变窄的区域，在电熔丝被设计成在该区域处被吹过，在通过能量束通过光刻掩模并且到 抗蚀剂层。 优选地，在所确定的熔丝图案上具有基本恒定宽度的熔丝部分具有小于约0.25μm的设计宽度，并且其中熔丝部分的局部变窄区域具有小于熔丝部分的设计宽度的设计宽度。

公开(公告)号：WO0199148A3

公开(公告)日：2002-08-29

申请号：PCT/US0119240

申请日：2001-06-14

Applicant: INFINEON TECHNOLOGIES CORP ,  IBM

Inventor： IYER SUNDAR K ,  BRINTZINGER AXEL ,  SMEYS PETER ,  NARAYAN CHANDRASEKHAR ,  IYER SUBRAMANIAN

IPC: H01L23/525 ,  H01L27/102

CPC classification number: H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A fuse for semiconductor devices, in accordance with the present invention, includes a cathode (104) including a first dopant type, and an anode (102) including a second dopant type where the second dopant type is opposite the first dopant type. A fuse link (106) connects the cathode and the anode and includes the second dopant type. The fuse link and the cathode form a junction (111) therebetween, and the junction is configured to be reverse biased relative to a cathode potential and an anode potential. A conductive layer (103) is formed across the junction such that current flowing at the junction is diverted into the conductive layer to enhance material migration to program the fuse.

Abstract translation: 根据本发明的用于半导体器件的熔断器包括包括第一掺杂剂型的阴极（104）和包括第二掺杂剂类型的阳极（102），其中第二掺杂剂类型与第一掺杂剂类型相反。 熔丝连接（106）连接阴极和阳极并且包括第二掺杂剂类型。 熔丝链和阴极在其间形成结（111），并且该结被配置为相对于阴极电位和阳极电位被反向偏置。 在结上形成导电层（103），使得在结处流动的电流被转移到导电层中以增强材料迁移以对熔丝进行编程。

公开(公告)号：WO0163648A9

公开(公告)日：2002-10-24

申请号：PCT/US0105373

申请日：2001-02-20

Applicant: INFINEON TECHNOLOGIES CORP ,  IBM

Inventor： NARAYAN CHANDRASEKHAR ,  BRINTZINGER AXEL ,  EINSPRUCH FRED L ,  HAFFNER HENNING ,  THOMAS ALAN C

IPC: H01L23/525 ,  G03F1/14

CPC classification number: H01L23/5258 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method of making a photolithography mask for use in creating an electrical fuse on a semiconductor structure comprises initially determining a pattern for a desired electrical fuse, with the pattern including a fuse portion of substantially constant width except for a localized narrowed region of the fuse portion at which the electrical fuse is designed to blow. The method then includes providing a photolithography mask substrate and creating on the photolithography mask substrate a fuse mask element adapted to absorb transmission of an energy beam. The fuse mask element has a first mask portion of substantially constant width corresponding to the desired electrical fuse pattern portion of substantially constant width, and a second mask portion corresponding to the localized narrowed region of the fuse portion. The second mask portion comprises either an additional mask element spaced from the first mask portion, a narrowed width portion, or a gap in the first mask portion. The second mask portion is of a configuration sufficient to create a latent image of the electrical fuse pattern, including the localized narrowed region of the fuse portion at which the electrical fuse is designed to blow, upon passing the energy beam through the photolithography mask and onto a resist layer. Preferably, the fuse portion of substantially constant width on the determined fuse pattern has a design width less than about 0.25 mu m, and wherein the localized narrowed region of the fuse portion has a design width less than the design width of the fuse portion.

Abstract translation: 制造用于在半导体结构上形成电熔丝的光刻掩模的方法包括：首先确定所需电熔丝的图案，其中所述图案包括基本恒定宽度的熔丝部分，除了熔丝部分的局部变窄区域 电熔丝被设计在其上。 该方法然后包括提供光刻掩模基板，并在光刻掩模基板上产生适于吸收能量束透射的熔丝屏蔽元件。 熔丝掩模元件具有对应于基本恒定宽度的期望电熔丝图案部分的基本恒定宽度的第一掩模部分和对应于熔丝部分的局部变窄区域的第二掩模部分。 第二掩模部分包括与第一掩模部分间隔开的附加掩模元件，第一掩模部分中的窄宽度部分或间隙。 第二掩模部分具有足以产生电熔丝图案的潜像的构造，包括将电熔丝设计成熔断部分的熔断部分的局部变窄区域，以使能量束通过光刻掩模并进入 抗蚀剂层。 优选地，确定的熔丝图案上的基本上恒定的宽度的熔丝部分具有小于约0.25μm的设计宽度，并且其中熔丝部分的局部变窄区域具有小于熔丝部分的设计宽度的设计宽度。