| abstract |
The object of the present invention is to provide a method of preparing a metal foil laminate by which a metal foil laminate having good appearance and improved flatness is obtainable. According to a preferable embodiment of the method of preparing a metal foil laminate which has metal foils on both sides of an insulative substrate, a step of making second laminate and a step of heating and pressing the second laminate are comprised. In the step of making the second laminate, the insulative substrate is sandwiched by a pair of first metal foils, a pair of first spacer, a pair of second spacers and a pair of buffering pads in sequence so as to form a first laminate, then followed by sandwiching the first laminate with a pair of metal sheets and a pair of second cushion members in sequence so as to form the second laminate. In the step of heating and preparing the second laminate, the second laminate is heated and pressed by a pair of heating plates in the laminating direction thereof. |