公开(公告)号：US20240192600A1

公开(公告)日：2024-06-13

申请号：US18198854

申请日：2023-05-18

Applicant: DARWIN PRECISIONS CORPORATION

Inventor： Cheng-Wei Lin ,  Chi-Wei Lin

IPC: G03F7/09 ,  G03F1/50 ,  G03F1/80 ,  G03F1/82 ,  G03F7/36

CPC classification number: G03F7/094 ,  G03F1/50 ,  G03F1/80 ,  G03F1/82 ,  G03F7/36

Abstract: A manufacturing method of a metal mask comprises: providing a metal plate having a first surface and a second surface opposite to each other, and the first surface has preset opening regions; forming a first photoresist layer on the first surface which has first apertures corresponding to the preset opening regions respectively, and each preset opening region is partially exposed to each first aperture, and an area of the first aperture is 75%-100% of an area of the preset opening region; forming a second photoresist layer on the second surface which has second apertures, and the second surface is exposed to the second apertures; forming first etching parts on the first surface and corresponding to the first apertures respectively, and each first etching part has a first opening located in each preset opening region; forming second etching parts on the second surface and corresponding to the second apertures respectively.

公开(公告)号：US20240294321A1

公开(公告)日：2024-09-05

申请号：US18226271

申请日：2023-07-26

Applicant: DARWIN PRECISIONS CORPORATION

Inventor： Cheng-Wei Lin

IPC: B65D81/127 ,  B65D77/04 ,  B65D85/62

CPC classification number: B65D81/127 ,  B65D77/0406 ,  B65D85/62

Abstract: A mask package comprises a package body, a cover body and a first buffer. The package body has a bottom and a side wall, where the side wall has a top; the side wall is connected with the bottom, the top is located on a side opposite to a side where the side wall is connected with the bottom, and the side wall surrounds the bottom to form an accommodating space. The cover body is disposed on the top of the side wall and masks the accommodating space. The first buffer has a first length and a first width, and is disposed between the package body and the cover body, where the accommodating space has a second length and a second width, the second length is less than the first length and the second width is less than the first width.