WIRING PROTECTION ELEMENT FOR LASER DELETED TUNGSTEN FUSE
    1.
    发明公开
    WIRING PROTECTION ELEMENT FOR LASER DELETED TUNGSTEN FUSE 审中-公开
    接线保护元件用于激光划破钨热熔连接

    公开(公告)号:EP1673809A4

    公开(公告)日:2009-08-26

    申请号:EP04795254

    申请日:2004-10-14

    Applicant: IBM

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

    Abstract: A structure and associated method for protecting an electrical structure (25) during a fuse link deletion by focused radiation (52). The structure (1 ) comprises a fuse element (2), a protection plate (10), a first dielectric layer (14), and a second dielectric layer (4). The structure (1) is formed within a semiconductor device (5). The protection plate (10) is formed within the first dielectric layer (14) using a damascene process. The second dielectric layer (4) is formed over the protection plate (10) and the first dielectric layer (14). The fuse element (2) is formed over the second dielectric layer (4). The fuse element (2) is adapted to be cut with a laser beam (52). The dielectric constant of the second dielectric layer (4) is greater than the dielectric constant of the first dielectric layer (14). The protection plate (10) is adapted to shield the first dielectric layer (14) from energy from the laser beam (52).

    REDUCED SPLATTERING OF UNPASSIVATED LASER FUSES
    2.
    发明公开
    REDUCED SPLATTERING OF UNPASSIVATED LASER FUSES 审中-公开
    紫外线激光喷枪BEI UNPASSIVIERTEN LASERSCHMELZVERBINDUNGEN

    公开(公告)号:EP1547144A4

    公开(公告)日:2009-01-07

    申请号:EP03770364

    申请日:2003-09-19

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

    Abstract: The act of blowing an unpassivated electrical fuse (for example, fuse 405) using a laser can result in the splattering of the fuse material and result in electrical short circuits. A blast barrier (for example blast barrier 406) formed around an area of the fuse that is blown by the laser helps to contain the splattering of the fuse material. The blast barrier may be formed from the same material as the fuses themselves and therefore, can be created in the same fabrication step.

    Abstract translation: 使用激光吹入未激活的电熔丝(例如,熔丝405)的动作可能导致熔丝材料的飞溅并导致电气短路。 形成在由激光器熔断的保险丝的区域周围形成的防爆屏障(例如鼓风屏障406)有助于容纳熔丝材料的飞溅。 防爆屏障可以由与熔丝本身相同的材料形成,因此可以在相同的制造步骤中形成。

    CONDUCTOR CAPABLE OF SUBSTANTIAL CHANGING BY RADIATION AND HAVING GIVEN CONDUCTIVITY, AND MANUFACTURE THEREOF

    公开(公告)号:JP2000323580A

    公开(公告)日:2000-11-24

    申请号:JP2000124143

    申请日:2000-04-25

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a copper fuse of high laser absorption which minimizes laser energy required for erasing the fuse section of a conductor. SOLUTION: Metal wiring include a fuse segment, consisting of at least two kinds of metallic stacks. A material 24 of the metallic stack is a main conductor consisting of copper, and also the metal (that is, the conductor whose composition is mainly tungsten or titanium-tungsten) 26 of the upper layer has a prescribed thickness and optical properties which are selected so that the coupling between the lower metal 24 and the upper metal 26 gives high absorptive property to incident energy.

    ADJUSTABLE SELF-ALIGNED AIR GAP DIELECTRIC FOR LOW CAPACITANCE WIRING
    9.
    发明申请
    ADJUSTABLE SELF-ALIGNED AIR GAP DIELECTRIC FOR LOW CAPACITANCE WIRING 审中-公开
    可调自适应空气隙电介质用于低电容接线

    公开(公告)号:WO2005034200A2

    公开(公告)日:2005-04-14

    申请号:PCT/US2004032404

    申请日:2004-09-30

    Abstract: An adjustable self aligned low capacitance integrated circuit air gap structure comprises a first interconnect (64a) adjacent a second interconnect (64b) on an interconnect level, spacers (60b, 60c) formed along adjacent sides of the first and second interconnects, and an air gap (68) formed between the first and second interconnects. The air gap extends above an upper surface (74a, 74b) of at least one of the first and second interconnects and below a lower surface (76a, 76b) of at least one of the first and second interconnects, and the distance between the spacers defines the width of the air gap. The air gap is self-aligned to the adjacent sides of the first and second interconnects.

    Abstract translation: 可调整的自对准低电容集成电路气隙结构包括邻近互连层上的第二互连(64b)的第一互连(64a),沿第一和第二互连的相邻侧形成的间隔物(60b,60c) 间隙(68)形成在第一和第二互连之间。 空气间隙延伸到第一和第二互连中的至少一个的上表面(74a,74b)上方,并且位于第一和第二互连中的至少一个互连的下表面(76a,76b)的下方以及间隔件之间的距离 定义气隙的宽度。 气隙与第一和第二互连的相邻侧自对准。

    STRUCTURE AND PROGRAMMING OF LASER FUSE
    10.
    发明申请
    STRUCTURE AND PROGRAMMING OF LASER FUSE 审中-公开
    激光熔丝的结构与编程

    公开(公告)号:WO2005048304A3

    公开(公告)日:2005-07-28

    申请号:PCT/US2004036660

    申请日:2004-11-04

    Abstract: A method and structure for fabricating a laser fuse and a method for programming the laser fuse. The laser fuse includes a first dielectric layer having two vias filled with a first self-passivated electrically conducting material. A fuse link is on top of the first dielectric layer. The fuse link electrically connects the two vias and includes a second material having a characteristic of changing its electrical resistance after being exposed to a laser beam. Two mesas are over the fuse link and directly over the two vias. The two mesas each include a third self-passivated electrically conducting material. The laser fuse is programmed by directing a laser beam to the fuse link. The laser beam is controlled such that, in response to the impact of the laser beam upon the fuse link, the electrical resistance of the fuse link changes but the fuse link is not blown off. Such electrical resistance change is sensed and converted to digital signal.

    Abstract translation: 用于制造激光熔丝的方法和结构以及用于编程激光熔丝的方法。 激光熔丝包括具有填充有第一自钝化导电材料的两个通孔的第一介电层。 熔丝连接在第一电介质层的顶部。 熔断体将两个通孔电连接并且包括具有在暴露于激光束之后改变其电阻的特性的第二材料。 两个台面位于熔丝链上方,直接穿过两个通孔。 两个台面各自包括第三自钝化导电材料。 激光熔丝通过将激光束引导到熔丝链来编程。 控制激光束,使得响应于激光束对熔丝链的影响,熔丝链的电阻改变,但熔丝链不会被吹掉。 这种电阻变化被检测并转换成数字信号。

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