A mask and a mask assembly, which relates to the display field. The mask includes an opening region, a welding region and a blocking groove, the welding region is arranged around the opening region, and the blocking groove is arranged outside the opening area. When the mask is welded to a frame, wrinkles will appear on the mask. In embodiments of the present application, by providing a blocking groove on the mask, the spreading of the wrinkles may be blocked by the blocking groove, thereby preventing the wrinkles from extending into the opening region of the mask, avoiding the position shifting of the opening region, and improving the evaporation accuracy.

The invention relates to a holding system (1) for holding substrates (12) for use in a surface processing system having a covering area (20), comprising a plurality of fixing elements (2), a body (24) arranged within the covering area (20) for receiving the fixing elements (2), and a positioning element (26) for adjusting the covering and a machining area (20, 22), wherein a plurality of substrates (12) can be fixed by the fixing elements (2) and processed within the machining area (22).

A mask includes a mask frame including a first opening part; a first mask disposed on the mask frame and including a second opening part overlapping the first opening part in a plan view; a second mask including a mesh part having a mesh shape overlapping the second opening part in a plan view and disposed on the first mask; and a fixing part disposed on the second mask and extending along an edge of the second mask to surround the mesh part.

A mask includes a protruding portion provided with a deposition hole formed therethrough and including an upper surface, a lower surface facing the upper surface, and a side surface disposed between the upper surface and the lower surface and inclined at an angle with respect to the lower surface, a peripheral portion including a first surface extending from the upper surface, a second surface facing the first surface and having a step difference with respect to the lower surface of the protruding portion, and a coating layer disposed on the protruding portion. The protruding portion includes at least one of a protrusion protruded from the side surface of the protruding portion and a groove formed by removing at least a portion of the protruding portion from the side surface of the protruding portion, and the coating layer covers at least one of the protrusion and the groove.

A deposition mask set includes a first mask, a second mask, and a third mask. Each of the first mask, second, and third masks includes a first edge substantially parallel to a first direction, a second edge substantially parallel to a second direction, and a plurality of first openings. Each of the openings includes a first opening side that is substantially parallel to a third direction and a second opening side that is substantially parallel to a fourth direction, and each of the openings corresponds to one of a first, second, or third color area at one of pixel areas. The third and fourth directions are not parallel to the first and second directions, and the first, second, and third color areas are adjacent to each other in the third direction.

A method for manufacturing a patterned surface coating of an automobile heat dissipation device and an automobile heat dissipation device having a patterned surface coating are provided. The method for manufacturing the patterned surface coating of the automobile heat dissipation device includes providing a metal heat dissipation device, and forming a sputtered metal layer that is patterned on an upper surface of the metal heat dissipation device by sputtering, allowing a thickness of the sputtered metal layer to be between 1 μm and 3 μm, and allowing the sputtered metal layer to cover an area less than 90% of an area of the upper surface of the metal heat dissipation device.

A mask assembly includes a frame including long side portions extending in a first direction and spaced apart from each other in a second direction intersecting the first direction, and short side portions connected to the long side portions, the frame defining a frame opening, a first stick extending in the second direction and connected to the frame, a first mask sheet defining first deposition openings and connected to the first stick and the frame, at least part of the first deposition openings arranged in the first direction and overlapping the frame opening in a plan view, and a second mask sheet defining second deposition openings and connected to the first stick and the frame, at least part of the second mask sheet arranged in the first direction and overlapping the frame opening in a plan view.

Provided is a method of manufacturing an optical integrated device. The method includes forming a lower clad layer on a substrate, forming a plurality of mask patterns arranged in one direction on the lower clad layer, forming a core layer on a portion of the lower clad layer by a selective area growth method using the mask patterns as deposition masks, and forming an upper clad layer on the core layers, wherein the mask patterns have different widths or include mask layers of different materials.

Provided are a deposition mask, a method of manufacturing a display device using the deposition mask, and a display device. The deposition mask includes a main frame defining a first opening; ribs extending away from a side of the main frame, the ribs being apart from each other and defining second openings; and bridges connecting the ribs to one another across the second openings, wherein the bridges and the ribs form the same top surface, and a thickness of each of the bridges is less than a thickness of each of the ribs.

A mask, a manufacturing method thereof, a fine metal mask, a mask device and a use method thereof are provided. The mask includes at least one opening region and a shielding part surrounding and defining the at least one opening region. The shielding part includes a main part and at least one protrusion, in each opening region, the protrusion is protruded towards the opening region on a side of the main part facing the opening region; the main part includes an edge disposed on a side of the protrusion opposite to the opening region and with an extension direction being a same with an extension direction of the protrusion, the protrusion and a portion of the main part disposed between the edge and the protrusion includes a thinning portion with a thickness being less than a thickness of other portions of the shielding part.