Patent ID: 7338715

Claim:
A low-k dielectric material providing diminished arc tacking comprising: a base polymer polyimide having repeating units represented by the following formula I: where: R comprises an aromatic moiety; Φ is an aliphatic moiety, and R and Φ further comprise one or more of the following moieties: i. —O—, ii. —SO 2 —, iii. —CO—, iv. —C(CH 3 ) 2 —, v. —OSi(CH 3 ) 2 —, vi. —C 2 H 4 O—, vii. —S—, and viii. any halogen where, the content of the repeating unit represented by the formula I is 100 mol % of the total repeating units, and the number of the repeating units represented by the formula I in one molecule of the polyimide is 10 to 2000.