Front-end equipment

CD-SEMs

A CD-SEM (critical dimension scanning electron microscope) measures the width of lines, spaces and holes on the wafer from electron beam images. It is the main tool for checking that patterns after lithography and etching are the intended size.

What it does


Advanced CD-SEMs use low landing energies to avoid damaging thin resists, high accelerating voltages to see the bottom of deep holes in 3D NAND, and close matching between tools so that every tool on a production line reports the same value.

Products (4)


Japanese makers in this category


Other front-end equipment


Sources


  1. Hitachi High-Tech: CG7300 product page
  2. Hitachi High-Tech: CS5000 product page
  3. Hitachi High-Tech: CV7300 product page
  4. Hitachi High-Tech: GT2000 product page

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CD-SEMs

Last updated: October 23, 2026