公开(公告)号：US20210310126A1

公开(公告)日：2021-10-07

申请号：US16840280

申请日：2020-04-03

Applicant: DUPONT ELECTRONICS, INC. ,  ROHM AND HAAS ELECTRONIC MATERIALS LLC

Inventor： Husnu Alp Alidedeoglu ,  Patricia Gumbley ,  Cecilia Hall ,  Joseph Casey Johnson ,  Benjamin Naab ,  Jaclyn Murphy ,  Grzegorz Slawinski ,  Christopher Dennis Simone

IPC: C23C18/16 ,  H05K9/00 ,  C23C18/38 ,  C25D5/56 ,  C25D3/38 ,  C08G73/10

Abstract: In a first aspect, a metal-clad polymer film includes a polymer film adhered to a first metal layer. The root-mean-square roughness (Sq) of the interface between the polymer film and the first metal layer is less than 1 μm. The peel strength between the polymer film and the first metal layer is greater than 5 N/cm after 168 hours of aging at 150° C. when tested for a polymer film having a thickness in the range of from 25 to 75 μm and a first metal layer having a thickness of 18 μm in accordance with IPC-TM-650 test methods. The thickness of the first metal layer is 12 μm or less. The polymer film includes a first thermoplastic polyimide layer. In a second aspect, an electronic device includes the metal-clad polymer film of the first aspect. In a third aspect a process includes for forming a double-sided metal-clad polymer film.

公开(公告)号：US11700687B2

公开(公告)日：2023-07-11

申请号：US16899504

申请日：2020-06-11

Applicant: DUPONT ELECTRONICS, INC.

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

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

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

Abstract: 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.