公开(公告)号：US12159800B2

公开(公告)日：2024-12-03

申请号：US16818469

申请日：2020-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Inbum Yang ,  Sangsik Jung ,  Imdeok Jung ,  Bongwoon Choi

IPC: H01L21/677 ,  H01L25/075 ,  H01L33/00 ,  H05K13/02 ,  H05K13/04

Abstract: Discussed is a device for self-assembling semiconductor light-emitting diodes, in which the device includes an assembly chamber having a space for accommodating a fluid; a magnetic field forming part having at least one magnet for applying a magnetic force to the semiconductor light-emitting diodes dispersed in the fluid and a moving part for changing positions of the at least one magnet so that the semiconductor light-emitting diodes move in the fluid; a substrate chuck having a substrate support part configured to support a substrate, and a vertical moving part for lowering the substrate so that one surface of the substrate is in contact with the fluid in a state in which the substrate is supported by the substrate support part; and a controller for controlling a movement of the magnetic field forming part and the substrate chuck, wherein the controller controls a depth at which the substrate is submerged in the fluid based on a degree of warping of the substrate.

公开(公告)号：US12211951B2

公开(公告)日：2025-01-28

申请号：US17761839

申请日：2020-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Inbum Yang ,  Junghun Rho ,  Sangsik Jung ,  Bongwoon Choi

IPC: H01L33/00 ,  H01L21/67 ,  H01L21/673

Abstract: Discussed is an assembly chamber containing a fluid. The assembly chamber includes a bottom portion, a side wall portion formed at a predetermined height on the bottom portion and disposed to surround the bottom portion, and a partition wall part formed on the bottom portion and extending from one inner surface of a plurality of inner surfaces provided in the side wall portion to another inner surface facing the one inner surface. The vertical height of at least a portion of the partition wall part is variable with respect to the bottom portion.