Analysis And Optimization Of Board Level Interconnect Products

the paper analyzes the insertion and removal characteristics of board-level interconnection products based on finite element technology and experimental research,and realizes the physical modeling with the contact of an electrical connector.The influence of the plug-in characteristic is analyzed for the board-level connector and the fish-eye contact.Finally,the CCF design and the response surface method are combined to study the influence of different structural parameters on the contact characteristics of the fish eye contact,and the different structural parameters of the contact pair are optimized.The specific work of the paper is as follows:(1)The fisheye contact through the multi-plug is used to analyze the change of the state of the hole and the insertion force.The fisheye structure with different material parameters,the corresponding material of the corresponding insertion force is different.when fisheye change the pore structure,the effect of the fisheye state and insertion force after insertion and removal is analyzed.A new model of fisheye and vias is established,and the relationship between fisheye structure parameters and insertion force was studied.At the same time,combined with the situation of fish-eye structure processing and practical application,the fish-eye structure under different working conditions and different processing conditions was analyzed.(2)Based on the analysis of the influence of the fish eye size parameters on the insertion force,the optimum size of the fish eye structure is 0.36(+0.05,0).In response to the surface design,the regression model is used to simulate the mathematical regression model with high precision.Using the response surface method to return to the mathematical model to find a more significant interaction.Then,by using the MATLAB model,the 3D surface and contour maps are drawn.The study of the significant influencing factors of the insertion force and the pulling force is carried out,and the optimal solution of the fish eye structure is obtained.(3)Through the test analysis of the plug-in process of the connector,and the comparison between the simulation results and the test results,the effect of the plug and the socket on the insertion force is known,and when the plug and the socket are tilted The size of the effect of the entire insertion force,and the magnitude of the increase.At the same time,the plug and the socket between the bias,tilt on the insertion and tear force reached the peak of the moment changes.The simulation results are compared with the experimental results,and the relationship between the simulation results and the test results is analyzed in the first,second and third stages of the process.Through the detailed comparison of the size of the insertion force,the deviation between the simulation results and the test results can be obtained,and the simulation results can reflect the state of the products in order to meet the application requirements in the product design.According to the simulation results and the experimental results of this comparison,in the absence of offset,offset and tilt when the plug before the plug,whether there is a certain force,and the size of these forces,Which can determine in the connector plug force indicators should be in contact with the pull force on the basis of the status of the product,the appropriate set of indicators margin.After the end of the test,the plug and socket contacts and plug the shell,the socket shell Whether there are obvious deformation and kneeling and so on.