Ultrasonic bonding method and special ultrasonic welding machine used for optoelectronic device packaging

Abstract

The present invention discloses an ultrasonic bonding method and a special ultrasonic welding machine used for optoelectronic device packaging. The ultrasonic bonding method provided by the invention comprises the following steps of: fixing and precisely positioning the component to be welded, and applying an initial clamping force on the component to be welded, so that a glass sealing material is clamped by the component to be welded; and transferring the high-frequency vibration energy generated by an ultrasonic welding machine to the bonding surfaces through an energy guiding component, thus realizing the indeformable rapid welding package of the component to be welded. The special ultrasonic welding machine provided by the invention comprises an ultrasonic generator, a clamping component, the energy guiding component and a temperature control device. The ultrasonic bonding method and the special ultrasonic welding machine provided by the invention can accurately and precisely utilize energy, achieve the hermetic package of the component to be welded through energy transfer and transformation, significantly improve the residual stress distribution of the semiconductor optoelectronic device packaging layer, reduce stress concentration, guarantee the packaging quality of the semiconductor optoelectronic device and prolong the service life of the optoelectronic device, and canbe widely applied in the packaging of OLEDs (organic light emitting diodes), solar cells and other semiconductor optoelectronic devices.

Description

technical field [0001] The invention relates to an ultrasonic bonding method and a special ultrasonic welding machine for optoelectronic device packaging, which are suitable for the packaging of organic light emitting diode (OLED) displays, solar cells and other optoelectronic devices, and belong to the technical field of optoelectronic device packaging technology and equipment . Background technique [0002] In recent years, with the continuous development of optoelectronic device technology, ordinary LEDs, OLEDs, and solar cells have entered the public's sight, and are widely considered to be one of the most promising display technologies. Among them, OLED has the advantages of high brightness, good color contrast, wide viewing angle, fast refresh rate and low energy consumption. However, the organic light-emitting layer and electrodes in the OLED device are very sensitive to oxygen and moisture in the surrounding environment, and will interact with it to degrade, thus gr...

AI Technical Summary

Problems solved by technology

Ultrasonic packaging technology is widely used in the bonding of polymer materials and metal materials, and has made important research progress, but the bonding equipment has a complex structure, high equipment cost, and is not easy to control

Especially in the field of optoelectronic device packaging technology, the operation is relatively complicated, the packaging cost is high, and the precision of the packaging production line needs to be further improved

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