公开(公告)号：US20240347542A1

公开(公告)日：2024-10-17

申请号：US18596237

申请日：2024-03-05

Applicant: Samsung Display Co., LTD.

Inventor： SEUL-KI KIM ,  JUNG KYOUNG CHO ,  JEONGJU PARK ,  ILBAE AHN

IPC: H01L27/12 ,  H10K59/12 ,  H10K59/121 ,  H10K59/123 ,  H10K59/131

CPC classification number: H01L27/1225 ,  H01L27/127 ,  H10K59/1201 ,  H10K59/1213 ,  H10K59/123 ,  H10K59/131

Abstract: A display panel includes a base substrate, a first transistor disposed on the base substrate and including a first semiconductor pattern layer and a first gate electrode, and a light emitting element disposed on the first transistor and electrically connected to the first transistor. The first semiconductor pattern layer may include a first active pattern layer disposed on the base substrate, a first drain contacting the first active pattern layer, and a first source contacting the first active pattern layer and spaced apart from the first drain. A first spaced region between the first drain and the first source may be defined as a first channel region of the first active pattern layer, and the first gate electrode may overlap the first channel region.

公开(公告)号：US20220205110A1

公开(公告)日：2022-06-30

申请号：US17566427

申请日：2021-12-30

Applicant: Samsung Display Co., Ltd.

Inventor： BONG-KYUN KIM ,  CHANGWOO KWON ,  SEUNGBO SHIM ,  ILBAE AHN ,  SEOKJUN JANG ,  JINSUEK KIM ,  JI-HUN PARK ,  YONG-SU LEE ,  YANGIL JEON ,  GYU-PO KIM ,  SANG-WOO KIM ,  HYUN-CHEOL SHIN

IPC: C23F1/26 ,  C23F1/18 ,  H01L21/027

Abstract: An etchant composition of an embodiment may etch a multi-layered film of titanium/copper and may include about 5 wt % to about 20 wt % of persulfate, about 0.1 wt % to about 5 wt % of phosphoric acid or phosphate, about 0.01 wt % to about 2 wt % of a carbonyl ring compound, about 0.01 wt % to about 1 wt % of a 3-nitrogen ring compound, about 0.1 wt % to about 2 wt % of a 4-nitrogen ring compound, about 0.1 wt % to about 0.9 wt % of a fluorine compound, about 0.1 wt % to about 0.5 wt % of hydrogen about 1 wt % to about 3 wt % of a zwitterionic compound, and sulfate, water which is included in an amount that makes the total weight of the entire composition about 100 wt %.