会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Method of programming an improved metal-to-metal via-type antifuse
    • 编制改进的金属对金属通孔型反熔丝的方法
    • US5741720A
    • 1998-04-21
    • US538962
    • 1995-10-04
    • Frank W. HawleyAbdelshafy A. EltoukhyJohn L. McCollum
    • Frank W. HawleyAbdelshafy A. EltoukhyJohn L. McCollum
    • H01L20060101H01L21/70H01L23/525H01L29/00
    • H01L23/5252H01L2924/0002
    • A metal-to-metal antifuse disposed between two aluminum metallization layers in a CMOS integrated circuit or similar structure includes an antifuse material layer having an aluminum-free conductive link. The aluminum-free link is formed by forming a first barrier metal layer out of TiN having a first thickness, a second barrier metal layer out of TiN having a second thickness which may be less than said first thickness, the first and second barrier metal layers separating the antifuse material layer from first and second electrodes. The antifuse is programmed by applying a voltage potential capable of programming the antifuse across the electrodes with the more positive side of the potential applied to the electrode adjacent the barrier metal layer having the least thickness. In another aspect of the invention, an antifuse having a first barrier metal layer of a first thickness and a second barrier metal layer of a second thickness may be fabricated wherein the first thickness is less than the second thickness and wherein programming of the antifuse is accomplished by placing the more positive voltage of the programming voltage supply on the electrode of the antifuse adjacent the first barrier metal layer.
    • 设置在CMOS集成电路或类似结构中的两个铝金属化层之间的金属对金属反熔丝包括具有无铝导电连接的反熔丝材料层。 通过从具有第一厚度的TiN形成第一阻挡金属层,形成具有第二厚度的第二阻挡金属层,形成第一阻挡金属层,第二厚度可以小于所述第一厚度,第一和第二阻挡金属层 将反熔丝材料层与第一和第二电极分离。 通过施加能够跨越电极编程反熔丝的电压电位来编程反熔丝,其中施加到邻近具有最小厚度的阻挡金属层的电极的电势的更正的一侧。 在本发明的另一方面,可以制造具有第一厚度的第一阻挡金属层和第二厚度的第二阻挡金属层的反熔丝,其中第一厚度小于第二厚度,并且其中完成反熔丝的编程 通过将编程电压源的正电压放置在与第一阻挡金属层相邻的反熔丝的电极上。
    • 10. 发明授权
    • Above via metal-to-metal antifuse
    • 以上通过金属对金属反熔丝
    • US5308795A
    • 1994-05-03
    • US971734
    • 1992-11-04
    • Frank W. HawleyYen Yeouchung
    • Frank W. HawleyYen Yeouchung
    • H01L23/525H01L21/44
    • H01L23/5252H01L2924/0002Y10S148/055
    • A method for fabricating a metal-to-metal antifuse comprises the steps of (1) forming and defining a first metal interconnect layer; (2) forming an interlayer dielectric layer; (3) forming an antifuse via in the interlayer dielectric layer to expose the first metal interconnect layer; (4) depositing a via metal layer into a portion of the volume defining the antifuse via; (5) forming a planarizing layer of an insulating material in the antifuse via sufficient to fill a remaining portion of the volume defining the antifuse via; (6) etching the planarizing layer to expose an upper surface of the via metal layer and an upper surface of the interlayer dielectric layer so as to form a substantially planar surface comprising the upper surface of the interlayer dielectric layer, the planarizing layer, and the upper surface of the via metal layer; (7) forming an antifuse material layer over the substantially planar surface; (8) forming a metal capping layer over the antifuse material layer; and (9) defining the antifuse material layer and the metal capping layer.
    • 制造金属对金属反熔丝的方法包括以下步骤:(1)形成和限定第一金属互连层; (2)形成层间电介质层; (3)在所述层间电介质层中形成反熔丝通孔以暴露所述第一金属互连层; (4)将通孔金属层沉积到限定反熔丝通孔的体积的一部分中; (5)在所述反熔丝中形成绝缘材料的平坦化层,以足以填充限定所述反熔丝通孔的所述体积的剩余部分; (6)蚀刻平坦化层以暴露通孔金属层的上表面和层间电介质层的上表面,以便形成基本平坦的表面,该表面包括层间电介质层的上表面,平坦化层和 通孔金属层的上表面; (7)在所述基本上平坦的表面上形成反熔丝材料层; (8)在所述反熔丝材料层上形成金属覆盖层; 和(9)限定反熔丝材料层和金属覆盖层。