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Schlieren Thermal Mapper—Introduction

Hardware Components

Schlieren Imaging Fundamentals

Specifications

OptoMetrix's Schlieren Thermal
Mapper (STM) uses active optical-
probe techniques to produce both reflected light and Schlieren 
(differential phase-contrast) imagery
of an IC.

 

Thermal map of IC obtained using Schlieren Thermal Mapper

The Schlieren images are
 processed to produce real-time thermal maps with milliKelvin sensitivity and mega-pixel
resolution. Near infrared (IR)
sources are used for backside probing. 

Fault isolation of shorts and thermal management of "flip-chip" and standard IC's is available in this turnkey system.

 

 

  • Differential phase-contrast
     imaging of integrated circuit (IC) from the topside or through the backside.
  • Thermal mapping with milliKelvin sensitivity.
  • Mega-pixel images with10-bit image depth.
  • OptoVision instrument control, navigation, image acquisition,
    and processing software.
  • Modular construction allows for future upgrades and custom options.
  • Long-working distance objectives on motorized turret.
  • Standard and optional mechanical staging packages.

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 Schlieren optical head

 

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Sample images taken with the STM


Near IR reflected-light image obtained with STM through backside of IC

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Real-time thermal image of hot spot
is perfectly registered with reflected-light image

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