Method for testing mechanical strength of silicon material

Application Number: 00107135
Application Date: 2000.04.21
Publication Number: 1320813
Publication Date: 2001.11.07
Priority Information:
International: G01N3/42
Applicant(s) Name: Zhejiang Univ
Inventor(s) Name: Yang Deren;Li Dongsheng;Li Liben
Patent Agency Code: 33200
Patent Agent: han gemei
Abstract A method for measuring the mechanical strength of silicon material features that the shift length of dislocations on silicon material is measured to determine its mechanical strength. It includes such steps as cutting silicon material to obtain specimen, polishing, making indentation by press head of hardness tester, introducing disclocations around the indentation, heat treating in protecting gas to shift dislocation, cooling, corroding with chemical corrosion liquid to display the shift of dislocations, and measuring the shift distance.