Quality based by innovating advanced technology and continual improvement, we always pursue excellence and create value for the customers. This is LEF's Quality Policy.

LEF has professional employees,advanced equipments,strict quality control system,advanced test and inspection instruments to ensure the quality and reliability of goods.

Professional Employees And Advanced Equipments Quality Control

Advanced Test and Inspection Instruments 1 AOI 100% AOI to ensure finished pattern to the original design 2 E-Test 100% E-Test to ensure the function of the PCB 3 Microscope Microscope can magnify the micro-sections by 1000 times 4 XRF Tester Accurately measure the thickness of the plating Cu/Au/Nickel/Pb/Sn/Silver 5 Thermal Cycling Machine 6 CVS Analyses the plating bath of organic additives 7 AAS Analyses the plating bath of microelement, for example: Pd/Au/Cu/Ni 8 UV-Spectrometer Analyses the chemical of aborbency, for example: MnO4/Fe  9 Line Gauge Test line width and space 10 TG Tester TG test,△TG test, CTE test, T260, T288 11 Optical Coordinate Measuring Machine 12 LCR Tester Inductance, capacitance, resistance test 13 Impedance Tester Advanced impedance testing to achieve accurate measurement of the PCB's dielectrics and tracking 14 Voltage Standing Tester Test the capability of the dielectric voltage 15 Ionic Contamination Tester Accurately measure the ionic contamination on bare PCB   Quality Certification