摘要:
The invention relates to a thermosetting resin composition comprising (A) a thermosetting polyimide and (B) a bismaleimide and showing a modulus of elasticity of 10² to 10⁷ dyne/cm² in the course of heat curing step which is suitable for forming adhesive films used in thin film wiring boards having excellent heat resistance and high reliability. The invention further relates to precursor compounds and compositions.
摘要翻译:本发明涉及一种热固性树脂组合物,其包含(A)热固性聚酰亚胺和(B)双马来酰亚胺,并且在热固化步骤中显示10 2至10 7达因/ cm 2的弹性模量 适用于形成具有优异的耐热性和高可靠性的薄膜布线板中使用的粘合膜。 本发明还涉及前体化合物和组合物。
摘要:
The invention relates to a thermosetting resin composition comprising (A) a thermosetting polyimide and (B) a bismaleimide and showing a modulus of elasticity of 10 2 to 10 7 dyne/cm 2 in the course of heat curing step which is suitable for forming adhesive films used in thin film wiring boards having excellent heat resistance and high reliability. The invention further relates to precursor compounds and compositions.
摘要翻译:本发明涉及一种热固性树脂组合物,其包含(A)热固性聚酰亚胺和(B)双马来酰亚胺,并且在热固化步骤中显示10 2至10 7达因/ cm 2的弹性模量 适用于形成具有优异的耐热性和高可靠性的薄膜电路板中使用的粘合膜。 本发明还涉及前体化合物和组合物。
摘要:
The invention relates to a thermosetting resin composition comprising (A) a thermosetting polyimide and (B) a bismaleimide and showing a modulus of elasticity of 10 2 to 10 7 dyne/cm 2 in the course of heat curing step which is suitable for forming adhesive films used in thin film wiring boards having excellent heat resistance and high reliability. The invention further relates to precursor compounds and compositions.
摘要:
The present invention provides a soft magnetic powder composite core for an electric apparatus produced with soft magnetic particles having electric insulating layers on the surfaces thereof, wherein said electric insulating layers are formed by mixing said soft magnetic particles with an insulating layer-forming solution which comprises a phosphating solution and a surfactant, and drying the treated soft magnetic particles at a predetermined temperature. The soft magnetic powder composite core is excellent in iron loss and magnetic flux density. The surfactant contains anionic or cationic functional groups and a perfluoroalkyl group.
摘要:
A thin and high-density package board used with general-purpose mainframe computers and high-speed processors is provided. On a ceramic substrate (3) on which memory LSIs (5, 6) and a logic LSI (4) with only elements formed without multilayer wiring are mounted, a multilayer wiring layer (23) insuring signal transfer of the LSIs is formed, providing a thin package board.
摘要:
A wiring board having plural layers is made by bonding together individual wiring sheets (1,11,21), each typically comprising copper wiring on a polyimide film substrate. The sheets are bonded together by applying a liquid varnish (16,26) to the wired surface (3) of one sheet. The varnish contains a polyimide precursor, preferably a polyamic acid ester, or a soluble polyimide, as well as a thermosetting adhesion promoter, preferably maleimide-terminated. The liquid varnish (16,26) is dried to a solid polyimide layer on the wired surface. A further wiring sheet is then pressed onto the polyimide layer and the adhesion promoter is polymerised by heating to bond the layers together.