The Study On Design And Techinics Of Ltcc Product

This paper is summarized and abstracted from the planning and implementation of LTCC item of ChongQing Sichuan Instrument Micro Circuit Co.Ltd. Firstly, the longinquity effect for development of LTCC techincs is expounded. Concept and actuality in china and fremdness of LTCC are introduced. Abroad applacation in some field and the key developed in china are introduced also.Secondly ,the situation of CSIMC (short for ChongQing Sichuan Instrument Micro Circuit Co.Ltd.) is summarized, the The necessities for CSIMC to implement LTCC item are pointed out. The feasiblitis for CSIMC to implement LTCC are analyzed.the objects of LTCC are presented.Thirdly , characteristic in material are introduced .The ascendent of LTCC product in cubage ,meterial, techincs , special function are pointed out .The design criterion and attention about distance in vias,lead,pad,thick film resistance, capacitance,inductance and crust are emphases introduced.the facture techinics and control of quality about LTCC are introduced.It consist of Tape Casting, Blanking,ViaPunching,Printing,Lamination,Firing,Laser Trim,dicing and Testing. At present ,the LTCC product with lacuna is trial-maufactured,it is appliance to micro wave field. the probation of the LTCC product is processing in a clicent of CSIMC.At last, the LTCC item is accidence implemented. the facture techinics of LTCC are in control of CSIMC, the problem about rupture of track in layers after fired is solved by innovated design to landscape orientation place track. the problem about distorion of LTCC product with much area ground after fired is solved by innovated design to gridding. the problem about distorion of LTCC product with lacuna after Laminated is solved by improvement on technics. the problem about much difference between inner layer and outer layer in shrink is solved by change firing temperature and chain speed. But,the about distorion of LTCC product with lacuna after fired is not entirely solved.The firing techinics and methold of firing should be improved on.As a manufacturing enterprise of electronic product, CSIMC has offered useful experience of planning and implementation of LTCC. It can be used for reference by the same type of manufacturing enterprises.