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Semiconductors

Semiconductors

The "minimization of design" rule for semiconductor device manufacturing is advancing at a remarkable rate. Recent advancements in techniques make it possible to control device structures at an atomic level. To this end, electron microscopy has become an indispensable technique allowing high-resolution imaging with a quick turnaround time. The electron microscope is able to cover a very wide scale range for evaluating everything from the packaged device to the atomic level gate structure. Hitachi High-Tech offers highly advanced in-line and off-line analysis systems for semiconductor device development, manufacturing, failure analysis and quality assurance. We produce a wide range of electron microscope solutions including the world's leading FE-SEM, FIB-SEM, and TEM systems.

Analysis field of semiconductor devices

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In the semiconductor device manufacturing process, electron beam based systems are widely used for developing next generation semiconductor devices, and for QTAT process control for improving manufacturing yield.

Key analysis for FEOL & BEOL

  • Critical dimension measurement
  • Pollution, particle analysis
  • Voltage contrast
  • Individual transistor electrical measurement
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A wide variety of electron beam based systems are used for analyzing the source of a device failure and improving its manufacturing process. QTAT failure analysis is in demand for improving device quality and building a reliable partnership with customers.

Key points of interest for failure analysis:

  • Pollution, particle analysis
  • Metal interconnect line Net localization
  • Voltage contrast
  • Individual transistor electrical measurement
  • Critical dimension measurement
  • Diffusion region analysis

For chip level analysis

For chip level analysis
Purpose
Image Example

Product

For PCB & Package-Level Analysis

For PCB & Package-Level Analysis
Purpose
  • TSV analysis
Image Example

Product

Condition Analysis of a device soldered on PCB

Requirement

  • Large size stage & variable pressure mode for printed circuit board

Target Device

  • Device on the printed circuit board
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Solution

Wire Bonding Analysis

Requirement

  • High precision cross section milling without mechanical stress, and high quality SEM imaging at variable pressure mode

Target Device

  • Packaged device
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Solution

Voltage Contrast and Current Imaging

Requirement

  • Rapid, clear and easy voltage contrast and current image observation

Target Device

  • Smaller than 2x nm Logic, DRAM, and NAND-FLASH

Target detection

  • Electrical open and leakage
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Solution

SEM:

AFM:

Electrical Characteristics Measurement

Requirement

  • Capability of 10 nm beyond device measurement
  • Clear and high resolution SEM live image without device damage

Target Device

  • Beyond 10 nm design node Logic, DRAM, and NAND-FLASH

Target characteristics

  • Static characteristic, AC characteristic, & Electron Beam Absorbed Image
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Solution

TEM Specimen Preparation

Requirement

  • End point detection at cross-section milling
  • Easy and high quality cross-section sample preparation without damage or curtaining effects for high resolution TEM analysis

Target Device

  • Beyond 20 nm design node Logic, DRAM, and NAND-FLASH
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Solution

TEM/STEM Based CD Measurement

Requirement

  • Ultra-high resolution TEM/STEM for CD measurement

Target Device

  • Beyond 10 nm design node Logic, DRAM, and NAND-FLASH
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Solution

TEM:

Analysis of Diffusion Area

Requirement

  • Rapid TEM analysis for detecting low-concentration impurity elements
  • Rapid AFM analysis for confirming diffusion area

Target Device

  • Beyond 20 nm design node Logic, DRAM, and NAND-FLASH

Target element

  • Boron, Arsenic, and Phosphor for Source-Drain
Examples of STEM based elemental analysis
Examples of diffusion area analysis with AFM

Solution

TEM:

AFM: