Metal mask and method for manufacturing metal mask

A metal mask including a first surface, and a second surface positioned opposite to the first surface, wherein

• the first surface has through-holes, a first top part, and a second top part,
• the through-holes have a first through-hole, a second through-hole, a third through-hole, a fourth through-hole, a fifth through-hole, and a sixth through-hole,
• the first through-hole has a first short axis and a first long axis,
• the second through-hole has a second short axis and a second long axis,
• the third through-hole has a third short axis and a third long axis,
• the fourth through-hole has a fourth short axis and a fourth long axis,
• the fifth through-hole has a fifth short axis and a fifth long axis,
• the sixth through-hole has a sixth short axis and a sixth long axis,
• the first long axis is parallel to the second long axis and positioned next to the second long axis in a direction D2 crossing the first long axis,
• the first short axis is parallel to the fifth short axis and positioned next to the fifth short axis in a direction D1 parallel to the first long axis,
• the third long axis is parallel to the fourth long axis and positioned next to the fourth long axis in the direction D1 parallel to the first long axis,
• the third short axis is parallel to the sixth short axis and positioned next to the sixth short axis in the direction D2 crossing the first long axis,
• the first top part is positioned between the first long axis and the second long axis and between the third long axis and the fourth long axis,
• the second top part is positioned between the first short axis and the fifth short axis and between the third short axis and the sixth short axis, and
• a ratio (S2/S1) of an area S2 of a top of the second top part to an area S1 of a top of the first top part is 0.65 or less.