Polyimides having low dielectric loss
AssigneeSolvay Specialty Polymers Italy S.P.A.
InventorsDipankar Basak, Chinmay Nardele, Rahul Shingte, Mattia Bassi
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Abstract
The present invention relates to novel polyimide polymers containing certain fluorinated diamine moieties, said polyimide polymers being characterized by excellent dielectric performances. The present invention also relates to the use of said polyimide-based polymers in polymer compositions in microelectronics applications.
Claims30
A polyamic acid polymer, [polymer (PAA)], obtained by polymerizing:
- an aromatic carboxylic acid component [component (AC)];
- a diamine component [diamine (D)], wherein diamine (D) is an organic fluorinated diamine of formula (I):
- with n being an integer from 2 to 10;
- and
- optionally, a diamine component [diamine (D1)] different from diamine (D).
A polyamic acid polymer, [polymer (PAA)], obtained by polymerizing:
- an aromatic carboxylic acid component [component (AC)];
- a diamine component [diamine (D)], wherein diamine (D) is an organic fluorinated diamine of formula (I):
- with n being an integer from 2 to 10;
- and
- optionally, a diamine component [diamine (D1)] different from diamine (D).
A polyimide polymer (PI) comprising units derived from the polymerization of:
- a component (AC) selected from 4,4′-oxydiphthalic anhydride (ODPA), 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA),
- 20.0 to 80.0 mol % of a diamine (D) of formula (II), and
- 20.0 to 80.0 mol % of p-phenylenediamine, (PDA).
A polyimide polymer (PI) comprising units derived from the polymerization of:
- a component (AC) selected from 4,4′-oxydiphthalic anhydride (ODPA), 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA),
- 20.0 to 80.0 mol %, even 25 to 80 mol % of a diamine (D) of formula (II), and
- 20.0 to 80.0 mol %, even 20 to 75 mol % of p-phenylenediamine, (PDA).
Dependencies are inferred from the claim text.