公开(公告)号：US20230235139A1

公开(公告)日：2023-07-27

申请号：US18193224

申请日：2023-03-30

Applicant: DUPONT ELECTRONICS, INC.

Inventor： MING-SIAO HSIAO

IPC: C08J5/18 ,  C08G73/10

CPC classification number: C08J5/18 ,  C08G73/1071 ,  C08G73/1053 ,  C08G73/1042 ,  H05K2201/0154 ,  C08J2379/08 ,  H01L27/1218

Abstract: A polyamic acid solution includes a dianhydride and a diamine. The dianhydride includes pyromellitic dianhydride, the diamine includes a benzimidazole, the molar ratio of dianhydride monomer to diamine monomer is in a range of from 0.85:1 to 0.99:1, and the polyamic acid solution has a solids content in a range of from 10 to 25 weight percent and a viscosity in a range of from 300 to 3000 poise.