• Laser repair platform & technology

Laser repair platform & technology

Model : Model MST & Model MSR

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Model MSR
■ Micro led repair technology

Micro led display has millions and millions dies to be transferred. Even with the highest yields, the mass transfer process still results in thousands of bad pixels, which need to be repaired. Thousands of die to be repaired is a big job that repair process must be efficient with high quality. MRL repair station is the most advanced solution for efficient and high quality micro led repair. Micro led repair is a very sophisticated process, which requires the technology of being able to control the machine XY repeatability within 0.7um for 1.5 meter moving distance and a special vision algorithm with AI super resolution capabilities to reach transfer gap within 50um and the transfer accuracy within 5um. MRL series, integrating SSI exclusive core technologies in motion control, image processing, algorithms, micro laser machining and sub micron dispensing,is able to meet all critical repair requirements with high quality and efficiency. In addition, MRL series has an exclusive dispensing technology, which is able to dispense silver paste on very small width down to 1um for circuit repair and UV coating on the extremely small dies.

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MRL repair process
■ 1st step : Remove adhesive , bad die and circuit cleaning with UV laser.
■ 2nd step : Repair circuit with special conductive ink for the circuit width down to 1 um.
■ 3rd step : place and bond new good die with Excimer laser.
■ 4th step UV adhesive coating on the good die.



SSI mass transfer machine specifications:

平台空跑最大移動速度
500mm/sec
轉移時最大掃描速度
200mm/sec
平台重複精度
±0.7um
相機解析能力
0.6um
雷射轉移精度
±3um
最終轉移精度
±5um
最大轉移能力(面積)
32cm^2/sec
能轉移Chip Size
無限制,只需光罩能對應

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