Automatic CD Measuring machine μ-Master Series

Specialized critical distance-measurement models compatible with the CD/Overlay measurement in LCD TFT array process and color filter process. High stage positioning technology cultivated with precise coordinate measurement machines, a high resolution optical microscope, and specialized measurement software are perfectly compatible with the fine CD/Overlay measurements of the LTPS*1 which is also drawing attention as the backplane of Organic EL displays. We are even targeting high detail photo mask line width measurements.*1 LTPS(Low Temperature Poly-Silicon)

μ-M700
Compatible with LTPS High resolution microscope

Providing the stable precision for 1μm level line width measurement, it is equipped with the high resolution optical microscope manufactured by our company which makes measurement of fine LTPS CD/Overlay possible.
The revolving microscope specification makes it compatible with a broad range of measurements, and color CCD specification makes it compatible with color filters and Organic EL panel observation functions.

Edge detection of the adjacent area's low contrast(Brightness profile display)
Advanced edge detection algorithm

With our newly developed edge detection algorithm, previously impossible to detect edges, like those in areas where the layers are arranged in a complex adjacent configuration, or low contrast edges, can be accurately detected. This is an indispensable tool for dealing with the continual miniaturization of the TFT array process with LTPS and the like.

Tact time reducing functions

The real time focusing with laser auto-focus, pattern centering reduction function, measurement position learning function, and automatic shortest-route setting function all minimize tact time. For the 6th generation and newer large panel compatible machines, which require even shorter tact times, we have the H2 models, whose 2 heads allow for simultaneous measurement.

Streamlining recipe creation

Measurement recipes created with the “Measurement recipe creation / edit support software / recipe maker” consists of “measurement position information” and “measurement macro files” where detail measurement contents are described, and both can be combined as you wish, and each easily can be compiled in various ways.
Particularly for the TFT array process in which multiple layers are stacked in the same position, you can drastically increase the efficiency of recipe creation by changing the existing recipes into other layer recipes by changing the contents of the “measurement macro files” without changing the “measurement position information”.

Streamlining recipe creation
Model Measurement Range (X,Y) Short measurement repeatability
μ-M700 550×650mm 3σ≦30nm
μ-M800 730×920mm
μ-M1100 1100×1300mm
μ-M1500H1/H2 1500×1850mm
μ-M2000H1/H2 2000×2250mm
μ-M2300H1/H2 2300×2600mm
Main applications
  • LTPS panels
  • TFTpanels
  • Color filters
  • OLED Panels
  • Photo masks
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