WHS

Economy manual flat aligner with dual knob (WHS-A6) 100 mm (4”)

WHS

Economy manual flat aligner with dual knob (WHS-A6) 100 mm (4”)

Choose your size:
Antistatic Construction With Wafer and Cassette Ground Paths
Economic Top/Bottom Flat Aligner
Easy Maintenance Quick-Disconnect Roller

Applications:

  • Alignment - Wafer flat and notch aligners are used in the semiconductor industry to ensure that wafers are oriented correctly during various processes, such as lithography, deposition, and etching. The flat aligner has a notch or flat that corresponds to the orientation of the wafer's crystal lattice structure. This is critical because the orientation of the wafer affects the performance and functionality of the final semiconductor device.
  • Lot integrity - Aligners are also used in the semiconductor industry to aid operators in performing lot integrity checks. By rotating the wafer scribe, which is the identification marking on the wafer's edge, to be visible to the operator, the operator can verify that the correct lot of wafers is being loaded into a production tool. This is an important step in preventing errors and ensuring consistent product quality.
  • Edge inspection - Wafer flat and notch aligners are also used in the semiconductor industry to inspect wafers for edge defects. This macro inspection procedure is usually done under a light source and involves examining the edges of the wafer for any chips, cracks, or other imperfections. This is an important step in preventing wafer breakage during subsequent processing steps, as edge defects can weaken the wafer and cause it to break or fail. By using wafer flat and notch aligners to identify and inspect these defects, operators can take steps to prevent further processing of defective wafers and avoid costly production delays.

 

The WHS-A5-401 is an economical antistatic flat aligner for top/bottom alignment of 100 mm primary wafer flats. Features advanced abrasion resistant, static dissipative stage and roller materials. Low maintenance and long life. ISO Class 4

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