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Independent semiconductor assembly and test provider.


ASE is the largest of the Big Three OSATs-providers of outsourced semiconductor assembly and test.
The company was founded in 1984 and provides fan-out wafer-level packaging, wafer-level chip-scale packaging, flip chip, 2.5D, 3D, system-in-package and copper wire bonding.

  • HQ: Kaohsiung, Taiwan
  • Known for: Semiconductor packaging
  • Web: URL
  • Other names: Advanced Semiconductor Engineering, ASE Group
  • Type: Company


  • ASE acquired Siliconware Precision Industries in 2016
    • SPIL processes BGA and lead-frame packages and provides testing services, which are complementary to ASE's advanced packaging technologies.