Packaging method of SMD type LED with lens

Abstract

The invention relates to a packaging method of an SMD type LED with a lens. Slice arrangement is directly carried out an electroplated SMD type LED patch support; adhesive dispersing is carried out on a die bonder to fix a chip; a fixed chip support box is placed in an oven and a crystal bonding adhesive is baked, so that the fixed chip support box is solidified; and then the solidified chip support box is placed in a welding wire machine and a gold wire or an alloy wire are employed to enable a P / N junction of the chip to be bonded with the support; and the bonded support is directly discharged into a moulding die with a lens and a press machine is utilized to inject a silicon resin or a silica gel into the moulding die, so that one-time injection moulding of an SMD type LED with a lens is completed. According to the packaging method of the SMD type LED with a lens in the invention, an injection method is utilized to produce the SMD type LED with a lens; and the output is high and the consistency is high; besides, the LED has high surface smooth finish and is free of air bubbles; a bonding force between materials is good; and injection and moulding can be completed once.

Description

technical field [0001] The invention relates to a packaging method for an SMD LED with a lens. Background technique [0002] SMD LED Market Prospects: SMD LED Light Emitting Diode: SMD LED is a new type of surface mount semiconductor light emitting device, which has the advantages of small size, large scattering angle, good luminous uniformity and high reliability. The luminous color includes white light in Various colors inside, so it is widely used in various electronic products. Especially when it comes to large-size LED backlighting and LED lighting. [0003] Traditional SMD LED packaging process with lens: The bracket is first treated with silver electroplating, and PPA engineering plastic is injected on the silver-plated bracket, and then the process of solid crystal, baking, wire bonding and baking is completed. Then cover the lens model on the PPA base, inject silicone into the glue injection hole on the edge of the base and the lens model, put the silicone holder ...

AI Technical Summary

Problems solved by technology

But at the same time, there is a bad phenomenon that filling the silicone lens will produce internal air bubbles, and the production efficiency is low.

There is also a process of pointing silicone in the PPA bracket, then covering the plastic lens, and coating a circle of silicone seal on the bottom of the plastic lens, but because the plastic lens is not good at high temperature, it cannot realize mechanical automation, etc.