Production method of thin plate and thin plate support for chucking employed in the method

A production method of a thin plate comprising:

• preparing thin plate support with a receptacle cavity having a bottom surface formed with a complementary three-dimensional pattern with a three-dimensional pattern on one side surface of a machining object;
• setting said machining object within said receptacle cavity with mating said complementary three-dimensional pattern with said three-dimensional pattern on said one surface of said machining object;
• chucking said thin plate support carrying said machining object set in said receptacle cavity on a machine tool;
• driving said thin plate support together with said machining object to rotate;
• machining said machining object as being driven to rotate on said machine tool from the other side of said machining object by means of a cutting tool;
• and said machining object is machined until said three-dimensional pattern remains on said one side surface and window openings are formed around said three-dimensional pattern.