How to design hardware shrapnel

1. The first is to have a detailed design drawing, which should include the key position, organization hole, positioning hole and shape of the hardware shrapnel button. In fact, these products generally do not have standard parts, and what is needed is the drawings given by the customer. Of course, you can also help the customer to plan the graphics according to the circuit board provided by the customer.　　2. Secondly, it is necessary to determine the shape, diameter, raw material, strength and requirements for life and feel of the selected hardware shrapnel.　　 3. Understand the customer's demand for the color of the metal shrapnel conductive film, whether it is bright or white.　　4. Understand the customer's demand for the impedance of the conductive film of the metal shrapnel, whether to brush EMI　　 5. Understand the customer's needs for the size of the metal shrapnel conductive film (the mold service is usually within 0.1MM, and the laser service is usually around 0.2MM).