point engineering

AAO Technology

AAO(Anodic Aluminum Oxide), is a self-ordered aluminum oxide made by anodizing process.

Characteristics of an AAO

  • Porous structure: Uniformly aligned 30-50nm pores
  • Al2O3 ceramic material available for selective wet etching

Differentiated technology of PEC AAO

  • PEC is the only company in the world, who can mass produce AAO wafers in a large size (~12”).
  • PEC is the only company in the world, who manufactures probe pins from AAO wafer with application of MEMS & plating technology.
High aspect ratio
Heat resistance
Up to 150um thickness

AAO Wafer
Size Comparison

MEMS Performances





If you have any questions or
suggestions about PEC,
please click here and send them to us.