Master plate and manufacturing method of metal formed article

A master plate having an electrodeposition surface in which a metal formed article is formed by electrodeposition, and having a product region in which a product part, which is cut out as a product from the metal formed article, is formed and a non-product region other than the product region in the electrodeposition surface, the master plate comprising:

• a product pattern that is formed in the product region and includes a recess and a protrusion;
• and
• a dummy pattern that is formed in at least a partial region of the non-product region and includes a plurality of recesses and a plurality of protrusions, wherein a surface area of the product pattern per unit area of the product region is smaller than a surface area of the dummy pattern per unit area of a dummy region in which the dummy pattern is formed,
• wherein an average height of the plurality of protrusions of the dummy pattern is higher than an average height of the plurality of protrusions of the product pattern.

A master plate having an electrodeposition surface in which a metal formed article is formed by electrodeposition, and having a product region in which a product part, which is cut out as a product from the metal formed article, is formed and a non-product region other than the product region in the electrodeposition surface, the master plate comprising:

• a product pattern that is formed in the product region and includes a recess and a protrusion;
• and
• a dummy pattern that is formed in at least a partial region of the non-product region and includes a plurality of recesses and a plurality of protrusions, wherein a surface area of the product pattern per unit area of the product region is smaller than a surface area of the dummy pattern per unit area of a dummy region in which the dummy pattern is formed,
• wherein each of the dummy pattern and the product pattern has a bottom surface and the protrusion protruding from the bottom surface, and
• angles formed by side walls of the plurality of protrusions and the bottom surface of the dummy pattern are smaller than angles formed by side walls of the plurality of protrusions and the bottom surface of the product pattern.