Silicon wafer precision scribing system
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This design is a precision scribing system for silicon wafer. For a better idea of how its used please look at this…
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This design is a precision scribing system for silicon wafer. For a better idea of how its used please look at this video.
In microelectronic, multiple devices are made on silicon wafers by photolithography before the wafer is cut to separate each device. Dicing is generally done with special saws but it is also possible (and more economical) to use a diamond tip to scratch (scribe) the wafer and break (cleave) it over its crystalline directions. This device is designed to make the scribing more precise at a low cost. It can also be used for glass.
Here is a detailed building guide on Instructables.
To build this device you will need:
Linear rail: 3X 20cm long MGN12 rails with 3X MGN12C (short) blocks and 1X MGN12H (long) block
Linear rail: 1X 7.5cm MGN7 rail with 1X MGN7H (long) block
Small digital pen microscope
Micrometer head 1X 0-13mm and 1X 0-6.5mm
Various M3 and M2 bolts and nuts
M3 4.2mm diameter 4mm long melt inserts
If you like this model you may also have a use for my 3D printed cleaving pliers. They come quite handy when making small wafer fragments.
Category: Tools