Other

Mingbo Zhou

Jun Cheng

Min Yan

A method for manufacturing on a compound glass substrate a multi-colored LED for use in a video display board includes preparing a first masking layer on a compound glass substrate; depositing a first-color epitaxial layer on the first-color LED growing region and the first masking layer, to form a first-color LED; removing the first masking layer and the first-color epitaxial layer on the first masking layer; preparing a second masking layer, wherein the second masking layer is used to mask another region except a second-color LED growing region; depositing a second-color epitaxial layer on the second-color LED growing region and the second masking layer, to form a second-color LED; removing the second masking layer and the second-color epitaxial layer on the second masking layer; and grinding, cleaning, and performing an electrical test on a surface of the compound glass substrate.

Method for manufacturing on compound glass substrate multi-colored LED for use in video display board

A manufacturing method includes: attaching a film onto a bonding surface of a wafer; performing laser cutting on the wafer to obtain a plurality of semiconductor light-emitting eutectic chips; attaching light-emitting surfaces of the plurality of eutectic chips on to an expansion film; detaching films from bonding surfaces of the plurality of eutectic chips; performing wafer expansion on the expansion film so that the plurality of eutectic chips have the same intervals as chip loading spaces on a substrate; attaching the expansion film onto a tray, and moving the tray so that positions of the plurality of eutectic chips correspond to that of the chip loading spaces; moving the tray so that the plurality of eutectic chips approach the chip loading spaces on the substrate; and embedding the plurality of eutectic chips into the chip loading spaces so that the plurality of eutectic chips are electrically connected to the substrate.

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Beijing, China

Mingbo Zhou