Detection method for electronic devices and electronic device transfer module having detecting elements

Abstract

A detection method for electronic devices including steps as follows is provided. The detection method includes: providing an electronic device substrate; attaching a portion of electronic devices of the electronic device substrate through an electronic device transfer module, wherein the electronic device transfer module includes a plurality of detecting elements corresponding to the portion of the electronic devices, and each of the detecting elements includes at least one pair of electrodes; detecting whether a conducting path between the at least one pair of electrodes is generated or not to confirm a status of contact between the portion of the electronic devices and a contact target; and transferring the portion of the electronic devices attached to the electronic device transfer module to a target substrate. An electronic device transfer module having detecting elements is also provided.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefits of U.S. provisional application Ser. No. 62 / 198,645, filed on Jul. 29, 2015. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND[0002]Technical Field[0003]The disclosure relates to a detection method and a transfer module for devices, and more particularly relates to a detection method for electronic devices and an electronic device transfer module having detecting elements.[0004]Description of Related Art[0005]Inorganic LED (light emitting diode) displays feature self luminance, high brightness, etc., and therefore have been widely applied in the fields of lighting, display, projector, and so on. Take monolithic micro-displays for example, monolithic micro-displays are extensively used in projectors but are held up by the technological bottleneck of colorization. Now, it has been proposed to use epit...

AI Technical Summary

Benefits of technology

The patent aims to confirm the status of contact between an electronic device transfer module and the electronic devices during transfer to increase the yield of electronic devices being transferred.

Problems solved by technology

Take monolithic micro-displays for example, monolithic micro-displays are extensively used in projectors but are held up by the technological bottleneck of colorization.

However, as the light emitting layers capable of emitting lights of different colors have different lattice constants, they are difficult to grow on the same substrate.

Nevertheless, such technologies still face the problems of low conversion efficiency and coating uniformity of the color conversion materials.

In the transfer process, however, the LED may not be removed efficiently due to non-uniform thickness of the LED on the substrate or improper horizontality correction of the transfer module, which may result in poor transfer yield.

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