Design and analysis of needle cover with blue film fixed diameter adjustable based on analysis on chip stripping parameters
In view of the problem that the theoretical analysis of the existing chip stripping process parameters is only a sepa-rate parameter analysis without considering the interaction between the parameters,in this paper,the Taguchi method is used to analyze the primary and secondary effects and interaction of the two process parameters:the fixed diameter of the blue film and the vacuum adsorption force at the bottom of the blue film during the chip stripping process.It is concluded that the fixed diameter of the blue film is the main factor affecting the chip stripping,while the adsorption force at the bottom of the blue film is the second-ary factor.Based on this conclusion,a thimble cover device with adjustable blue film fixed diameter is designed,and the feasibil-ity of the adjustable blue film fixed diameter thimble cover device is analyzed and verified by using the fluid module of ANSYS software,which provides a new idea for improving chip stripping efficiency and chip quality.