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    • 5. 发明申请
    • PROGRAMMABLE ANTI-FUSE STRUCTURES WITH CONDUCTIVE MATERIAL ISLANDS
    • 具有导电材料岛的可编程防结构
    • US20110254121A1
    • 2011-10-20
    • US12761780
    • 2010-04-16
    • Kangguo ChengLouis L. HsuWilliam R. TontiChih-Chao Yang
    • Kangguo ChengLouis L. HsuWilliam R. TontiChih-Chao Yang
    • H01L23/525H01L21/768G06F17/50
    • H01L23/5252G06F17/505H01L2924/0002H01L2924/00
    • Voltage programmable anti-fuse structures and methods are provided that include at least one conductive material island atop a dielectric surface that is located between two adjacent conductive features. In one embodiment, the anti-fuse structure includes a dielectric material having at least two adjacent conductive features embedded therein. At least one conductive material island is located on an upper surface of the dielectric material that is located between the at least two adjacent conductive features. A dielectric capping layer is located on exposed surfaces of the dielectric material, the at least one conductive material island and the at least two adjacent conductive features. When the anti-fuse structure is in a programmed state, a dielectric breakdown path is present in the dielectric material that is located beneath the at least one conductive material island which conducts electrical current to electrically couple the two adjacent conductive features.
    • 提供了电压可编程的抗熔丝结构和方法,其包括位于介于两个相邻导电特征之间的电介质表面上的至少一个导电材料岛。 在一个实施例中,反熔丝结构包括具有嵌入其中的至少两个相邻导电特征的电介质材料。 至少一个导电材料岛位于介电材料的位于至少两个相邻导电特征之间的上表面上。 电介质覆盖层位于电介质材料的暴露表面上,至少一个导电材料岛和至少两个相邻的导电特征。 当反熔丝结构处于编程状态时,介电击穿路径存在于介电材料中,介电材料位于至少一个导电材料岛之下,该导电材料岛传导电流以电耦合两个相邻导电特征。
    • 10. 发明授权
    • Interconnect structure with a barrier-redundancy feature
    • 互连结构与屏障冗余功能
    • US07605072B2
    • 2009-10-20
    • US11925161
    • 2007-10-26
    • Chih-Chao YangLouis L. Hsu
    • Chih-Chao YangLouis L. Hsu
    • H01L21/4763
    • H01L21/76849H01L23/53238H01L23/53295H01L2924/0002H01L2924/00
    • An interconnect structure that includes a barrier-redundancy feature which is capable of avoiding a sudden open circuit after an electromigration (EM) failure as well as a method of forming the same are provided. In accordance with the present invention, the barrier-redundancy feature is located within preselected locations within the interconnect structure including in a wide line region, a thin line region or any combination thereof. The barrier-redundancy feature includes an electrical conductive material located between, and in contact with, a conductive line diffusion barrier of a conductive line and a via diffusion barrier of an overlying via. The presence of the inventive barrier-redundancy feature creates an electrical path between the via diffusion barrier along the sidewalls of the via and the conductive line diffusion barrier along the sidewalls of the conductive line. This electrical path generated by the inventive barrier-redundancy feature can avoid a sudden open circuit resulting from EM failure at the bottom of the via. The presence of the inventive barrier-redundancy feature within an interconnect structure provides sufficient time for chip replacement or system operation.
    • 提供一种互连结构,其包括能够在电迁移(EM)故障之后避免突然断路的障碍物冗余特征以及其形成方法。 根据本发明,阻挡冗余特征位于互连结构内的预选位置,包括在宽线区域,细线区域或其任何组合中。 阻挡层冗余特征包括导电材料,其位于导电线的导电线扩散阻挡层和上覆通孔的通孔扩散阻挡层之间并与之接触。 本发明的阻挡 - 冗余特征的存在在沿着导电线的侧壁的通孔的侧壁和导电线扩散阻挡层之间形成通路扩散阻挡层之间的电路径。 由本发明的障碍物冗余特征产生的该电路径可以避免由于通孔底部的EM故障导致的突然开路。 在互连结构内部存在本发明的障碍物冗余特征为芯片更换或系统操作提供足够的时间。