Patent ID: 8883632

Claim:
A manufacturing method of a device comprising: a first process in which a barrier film is formed on a substrate with a concave portion provided on one surface thereof so as to cover at least an inner wall surface of the concave portion; a second process in which a conductive film is formed so as to cover the barrier film; and a third process in which the conductive film is melted by a reflow method, wherein the manufacturing method further includes a process α between the second process and the third process, in which the substrate with the barrier film and the conductive film laminated thereon in this order is exposed to an atmosphere under a pressure A for a time period B, and wherein in the process cc, control is carried out such that a product of the pressure A and the time period B is not greater than 6×10 −4 [Pa·s]; and wherein the pressure A is controlled to be not higher than 2×10 −5 [Pa].