Ozone gas generator and method for manufacturing ozone gas generator

A method for manufacturing an ozone gas generator, comprising:

• a step of forming a first electrode portion that includes a first electrode;
• a step of forming a second electrode portion that includes a second electrode;
• and
• a step of disposing the first electrode portion and the second electrode portion in which the first electrode portion and the second electrode portion face each other with an intended discharge gap Da of 300 μm or less,
• a step of providing a dielectric on a surface of the first electrode or the second electrode on sides facing each other in the first electrode portion and the second electrode portion,
• a step of forming a member having a height D2 on the dielectric between the first electrode portion and the second electrode portion,
• a step of providing a layer having a thickness D3 that includes at least one of a metal or a metal compound on at least a portion of the surface of the first electrode or the second electrode on the sides facing each other, or the dielectric in the first electrode portion and the second electrode portion, wherein
• the member is formed and the layer is provided such that the height D2 and the thickness D3 cause an actual discharge gap D1 between the first electrode portion and the second electrode portion to vary by x % from the intended discharge gap Da, wherein, 10<x<50, and (1−x/100)×Da<D1<(1+x/100)×Da.