LEAD WIRE CONNECTION METHOD FOR TUNING FORK TYPE QUARTZ OSCILLATOR

摘要

PURPOSE:To ensure a perfect electrical connection between the lead wire and the connection pad, by forming a diffusion region at the area of contact between the lead wire and the connection pad. CONSTITUTION:The indium thin layers 11 and 12 are attached previously to the head parts 7a and 8a of the lead wires 7 and 8. The basement 1 of the quartz oscillator is put down into the case basement 9 to secure a contact between the connection pads 5 and 6 and the head parts 7a and 8a respectively, and then a strong pressure is given them. In this case, the layers 11 and 12 attached to the parts 7a and 8a are diffused into the connection pads to secure a connection between the lead wires and connection pads in a perfect electrical way. Then the epoxy adhesive 13 is flowed into the case while keeping the state of connection mentioned above. After this, the whole part is heated up to harden the adhesive 13, and then the quartz oscillator is fixed to the case basement 9.