Specific Process Knowledge/Characterization/Thickness Measurer: Difference between revisions

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==Thickness measurer==
==Thickness measurer==
[[Image:Thicknessmeasurer2007.jpg|thumb|300x300px|Thickness Measurer. Positioned in cleanroom 4]]
[[Image:Thicknessmeasurer2007.jpg|thumb|300x300px|Thickness Measurer. Positioned in cleanroom D-3]]


The purpose is to measure the thickness of wafers, depths of larger grooves or height of larger mesas.  
The purpose is to measure the thickness of wafers, depths of larger grooves or height of larger mesas.  
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'''[http://www.labmanager.danchip.dtu.dk/function.php?module=Machine&view=view&mach=198 Thickness measurer]'''
'''[http://www.labmanager.danchip.dtu.dk/function.php?module=Machine&view=view&mach=198 Thickness measurer]'''


==Quality Control - Recipe Parameters and Limits==
==Quality Control - Recipe Parameters and Limits==

Revision as of 11:38, 28 February 2014

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Thickness measurer

Thickness Measurer. Positioned in cleanroom D-3

The purpose is to measure the thickness of wafers, depths of larger grooves or height of larger mesas.

During a KOH etch it can be helpful to ensure no over-etching by making a thickness measurement during the etching.


The user manual, technical information and contact information can be found in LabManager:

Thickness measurer

Quality Control - Recipe Parameters and Limits

Quality Control (QC) for the Thickness measurer

The measured standard thickness is 0.1 mm. The measured result has to be within ± 0.005 mm. The QC is preformed once a year.


Equipment performance and process related parameters

Purpose

Thickness measurer

  • Wafer thickness
  • Depths of larger grooves
  • Heigth of larger mesas

Performance

Thickness resolution

  • < 5 µm

Substrates

Batch size

  • One sample
Substrate materials allowed
  • No restrictions