The present invention provides an in situ plasma reducing process to reduce oxides or other contaminants, using a compound of nitrogen and hydrogen, typically ammonia, at relatively low temperatures prior to depositing a subsequent layer thereon. A blood collecting needle to which a tube is connected is stored in the inner tube. A laser beam with a predetermined wavelength is irradiated from a side of other surface of the second substrate to transfer a ferroelectric film, which overlaps with the seed layer, of the ferroelectric layer and the seed layer onto the side of said one surface of the first substrate. The method includes cutting a section from a rolled stainless steel plate base material corresponding in length to a length of a refrigerator door, rotating the cut section by a 90\xb0 angle, and surface processing through grinding a surface of the cut section in a direction perpendicular to a rolled direction thereof.