Quality control of linear running craft work of Si wafer
Further increase of efficiency and cost reduction is the.development tendency of Si
material and requirement of industry.Multi-linear running craftwork in Si material processing region
is introduced.It has highly efficient production capacity and a good many advantages and these
determine its development space.But how to efficiently control the quality of Si wafer is a crucial
problem In this paper compared linear cutting machine with internal linear cutting machine,we emphasis
on the study of quality control in linear running process.Contraposed the operating principle
of the linear running machine,tool marks、damage and wastage in linear running process will produce
mechanical stress and thermal stress,consequently produce slippage and dislocation.In high·
temperature treatment processing when mechanical stress and thermal stress exceed critical value of
crystals slippage,Si wafer will produce quality control such as fracture、angularity、degree of
curvature、whole thickness error、central thickness error etc.these can achieve the requirement
through adjust line tension、intake celocity and coolant flow etc.It can highly reduce the production
costs and increase production.efficiency It can be seen from the experiment,Thickness and
quality of Si wafer in linear running process meet the challenge.


