发明申请
US20150179592A1 SELF-ALIGNED UNDER BUMP METAL 有权
自动对齐的BUMP金属

  • 专利标题: SELF-ALIGNED UNDER BUMP METAL
  • 专利标题(中): 自动对齐的BUMP金属
  • 申请号: US14559215
    申请日: 2014-12-03
  • 公开(公告)号: US20150179592A1
    公开(公告)日: 2015-06-25
  • 发明人: Manoj K. JAIN
  • 申请人: Texas Instruments Incorporated
  • 主分类号: H01L23/00
  • IPC分类号: H01L23/00
SELF-ALIGNED UNDER BUMP METAL
摘要:
An integrated circuit including a self-aligned under bump metal pad formed on a top metal interconnect level in a connection opening in a dielectric layer, with a solder ball formed on the self-aligned under bump metal pad. Processes of forming integrated circuits including a self-aligned under bump metal pad formed on a top metal interconnect level in a connection opening in a dielectric layer, by a process of forming one or more metal layers on the interconnect level and the dielectric layer, selectively removing the metal from over the dielectric layer, and subsequently forming a solder ball on the self-aligned under bump metal pad. Some examples include additional metal layers formed after the selective removal process, and may include an additional selective removal process on the additional metal layers.
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