摘要:
A multilayer wiring board includes: a rigid portion including a first base member having flexibility and surfaces, the first base member having a first insulating layer and a first conductor layer, and a second base member bonded on at least one of the surfaces of the first base member and having rigidity higher than that of the first base member, the second base member having a second insulating layer and a second conductor layer; and a flexible portion provided so as to be continuously extended from the rigid portion, the flexible portion constituted from the first base member, wherein in the case where a coefficient of thermal expansion of the second insulating layer is measured by a thermal mechanical analysis based on JIS C 6481 at a predetermined temperature, the coefficient of thermal expansion of the second insulating layer in a plane direction thereof is 13 ppm/° C. or lower and the coefficient of thermal expansion of the second insulating layer in a thickness direction thereof is 20 ppm/° C. or lower.
摘要翻译:多层布线板包括:刚性部分,其包括具有柔性和表面的第一基底构件,所述第一基底构件具有第一绝缘层和第一导体层,以及第二基底构件,其接合在所述第一和第二基底构件的至少一个表面上 所述第二基底构件具有比所述第一基底构件的刚性更高的刚性,所述第二基底构件具有第二绝缘层和第二导体层; 以及柔性部,其设置成从所述刚性部分连续延伸,所述柔性部分由所述第一基底构件构成,其中在通过基于以下的热机械分析来测量所述第二绝缘层的热膨胀系数的情况下 JIS C 6481在规定的温度下,第二绝缘层的面方向的热膨胀系数为13ppm /℃以下,第二绝缘层的厚度方向的热膨胀系数为20 ppm /℃以下。
摘要:
According to the present invention, there is provided a process for manufacturing a circuit board wherein a first substrate having a conductor post and a second substrate having a conductor pad for receiving the conductor post are laminated through an interlayer adhesive, and the conductor post and the conductor pad are electrically connected, comprising, as a first step, bonding the conductor pad with the conductor post by thermocompression under predetermined first conditions while the first and the second substrates are arranged such that the conductor pad faces the conductor post through the interlayer adhesive; thermocompressing the first substrate and the second substrate under predetermined second conditions while the conductor pad is bonded with the conductor post; and thermocompressing the first substrate and the second substrate under predetermined third conditions while the conductor pad is bonded with the conductor post, wherein the first, the second and the third conditions are different from each other.
摘要:
There are provided a circuit board, which has little outflow of an interlayer adhesive to be used for a multilayer lamination while keeping a connection reliability, and a method for manufacturing the circuit board. The circuit board (68) is characterized in that a first substrate (16) having a first base (12) and a conductor post (45) composed of a protrusion (14) projecting from the first base (12) and a metallic cover layer (15) covering the protrusion (14), and a second substrate (18) having a second base (19) and a conductor circuit (17) are laminated and adhered through an interlayer adhesive (13) and are alloyed at a bonding face (43) between the metallic cover layer (15) and the conductor circuit (17), and in that the cross-section, as viewed in the cross-section of the bonding face (43), of the metallic cover layer (15) has a shape which becomes wider from the bonding face (43) of the conductor circuit (17) toward the first substrate (16).
摘要:
There is disclosed a resin composition used for forming a resin layer in a sheet-formed carrier material with a resin, comprising a polyfunctional epoxy resin (a) having three or more glycidyl ether groups with an epoxy equivalent of 100 to 300, a compound (b) having one or more carboxyl groups with a melting point of equal to or more than 50 degrees C. and equal to or less than 230 degrees C., and a curing agent (c).
摘要:
According to the present invention, there is provided a process for manufacturing a circuit board wherein a first substrate having a conductor post and a second substrate having a conductor pad for receiving the conductor post are laminated through an interlayer adhesive, and the conductor post and the conductor pad are electrically connected, comprising, as a first step, bonding the conductor pad with the conductor post by thermocompression under predetermined first conditions while the first and the second substrates are arranged such that the conductor pad faces the conductor post through the interlayer adhesive; thermocompressing the first substrate and the second substrate under predetermined second conditions while the conductor pad is bonded with the conductor post; and thermocompressing the first substrate and the second substrate under predetermined third conditions while the conductor pad is bonded with the conductor post, wherein the first, the second and the third conditions are different from each other.
摘要:
The present invention provides an adhesive tape comprising a flux-active compound having a carboxyl group and/or a phenolic hydroxyl group, a thermosetting resin and a film-forming resin. In the adhesive tape of the present invention, the thermosetting resin may be an epoxy resin and may contain a curing agent. The curing agent may be an imidazole compound and/or a phosphorous compound. The adhesive tape of the present invention can be used as an interlayer material for a circuit board and a multilayered flexible printed circuit board.
摘要:
This is to provide a conductive paste with higher electroconductivity containing, as raw materials: a metallic powder; a thermosetting resin; and a flux-activating compound having a carboxyl group and a phenolic hydroxyl group, which is applicable to the fine pitch-utilization.
摘要:
The present invention provides a resin composition for use as an adhesive material of a printed circuit board, comprising a polyimide siloxane resin. The present invention also provides a resin composition, a resin film, a cover lay film, an interlayer adhesive, a metal-clad laminate and a multilayer printed circuit board, in which flowing out during heating/pressing is prevented and which provide excellent adhesion strength. The present invention also provides a resin composition, a resin film, a cover lay film, an interlayer adhesive, a metal-clad laminate and a multilayer printed circuit board, which exhibit excellent heat resistance.
摘要:
An adhesive for a printed circuit board which consists essentially of a dispersion of a resin which is soluble in an alkaline oxidizing agent after curing in a resin matrix which is sparingly soluble in an alkaline oxidizing agent after curing, and a process for producing a printed circuit board using the above adhesive.
摘要:
Disclosed is an adhesive tape containing a flux activation compound having a carboxyl group and/or a phenolic hydroxyl group, a thermosetting resin and a film-forming resin. In this adhesive tape, the thermosetting resin may be an epoxy resin, and may contain a curing agent. The curing agent may be an imidazole compound and/or a phosphorus compound. This adhesive tape can be used as an interlayer material for circuit boards or multilayer flexible printed wiring boards.