公开(公告)号：US11700687B2

公开(公告)日：2023-07-11

申请号：US16899504

申请日：2020-06-11

申请人： DUPONT ELECTRONICS, INC.

发明人： Joseph Casey Johnson ,  Delanie J Losey ,  Peggy Scott ,  Christopher Dennis Simone

IPC分类号： H05K1/03 ,  B32B15/08 ,  B32B27/28 ,  C08L79/08

CPC分类号： H05K1/036 ,  B32B15/08 ,  B32B27/281 ,  H05K1/0393 ,  C08J2479/08 ,  C08L79/08 ,  H05K2201/0154 ,  Y10T428/31681 ,  Y10T428/31721

摘要： In a first aspect, a polymer film includes a polyimide. The polyimide includes one or more dianhydrides and one or more diamines. Each of the dianhydrides and diamines is selected from the group consisting of crankshaft monomers, flexible monomers, rigid rotational monomers, rigid non-rotational monomers, and rotational inhibitor monomers. The polymer film has a Df of 0.005 or less, a water absorption of 2.0% or less and a water vapor transport rate of 50 (g×mil)/(m2×day) or less. In a second aspect, a metal-clad laminate includes the polymer film of first aspect and a first metal layer adhered to a first outer surface of the polymer film. In a third aspect, an electronic device includes the polymer film of the first aspect.