摘要:
A polyimide metal laminate comprising a stainless steel layer/a resin layer/a thermoplastic polyimide resin layer/a metal thin film layer, wherein a thickness of the metal layer is in the range of 0.001 to 1.0 μm, a method for producing the same and a hard disk suspension comprising these polyimide metal laminate are provided. The hard disk suspension can be capable of fine pitch processing such that wiring pitch is not more than 50 μm.
摘要:
The present invention relates to a polyimide metal laminate which is a metal laminate comprising a stainless steel layer/a conductor layer/a polyimide resin layer/a metal layer, wherein the conductor layer is interposed between the stainless steel layer and the polyimide resin layer as a ground, and having a strong adhesion between the conductor layer and the polyimide resin layer, thus being able to be processed and used as a hard disk suspension. Specifically, the metal laminate of the present invention is characterized in that a surface of the conductor layer in contact with the polyimide resin layer is not smooth (preferably its 10-point average surface roughness is 0.5 μm or more).
摘要:
The present invention relates to a metal laminate which is broadly used for a flexible wiring board or the like and an etching method therefor. In particular, the present invention relates to a metal laminate which includes a layer obtained by laminating a metal layer and an insulating layer, where the insulating layer is subjected to an etching process, wherein, in a surface of the metal layer which is positioned so as to come in contact with the insulating layer, respective concentrations of main metal element and oxygen element constituting the metal layer are measured from the surface of the metal layer towards inside of the metal layer in a time-elapsing manner according to AES (Auger electron spectroscopy) and a value of the thickness of a metal oxide film of the surface of the metal layer measured at a time when atomic concentrations of the main metal element and the oxygen element constituting the metal layer become equal to each other is in a range of at least 0 Å to less than 50 Å. According to the present invention, an etching time of polyimide in the polyimide metal laminate can be calculated and a flexure used for a suspension for a hard disc drive having a high productivity can be provided.
摘要:
The present invention relates to a metal laminate which is broadly used for a flexible wiring board or the like and an etching method therefor. In particular, the present invention relates to a metal laminate which includes a layer obtained by laminating a metal layer and an insulating layer, where the insulating layer is subjected to an etching process, wherein, in a surface of the metal layer which is positioned so as to come in contact with the insulating layer, respective concentrations of main metal element and oxygen element constituting the metal layer are measured from the surface of the metal layer towards inside of the metal layer in a time-elapsing manner according to AES (Auger electron spectroscopy) and a value of the thickness of a metal oxide film of the surface of the metal layer measured at a time when atomic concentrations of the main metal element and the oxygen element constituting the metal layer become equal to each other is in a range of at least 0 Å to less than 50 Å.According to the present invention, an etching time of polyimide in the polyimide metal laminate can be calculated and a flexure used for a suspension for a hard disc drive having a high productivity can be provided.
摘要:
A polyimide metal laminate comprising a polyimide resin formed on a metal foil, wherein the polyimide resin does not cause the peeling of not less than 100 μm in the polyimide resin and/or at an interface between the polyimide resin and the metal foil when the polyimide resin is heated in an oven at an atmospheric temperature of from 340 to 360° C. for 5 to 10 minutes, the coefficient of humidity expansion at 320 is from 1 to 20 ppm/% RH, and an average value of the etching rate by a 50 wt % aqueous solution of potassium hydroxide at 80° C. is not less than 1.0 μm/min. The polyimide metal laminate can provide good heat resistance, superior dimensional stability and can be etching processed by an aqueous alkaline solution.
摘要:
A polyimide metal laminate including a polyimide resin having a copper foil and a stainless steel foil formed on respective sides of the polyimide resin, or a polyimide resin having two stainless steel foils formed on both sides of the polyimide resin, the polyimide metal laminate having: a peel strength of 1.0 kN/m or more between the polyimide resin and the stainless steel foil or copper foil; a peel strength of 1.0 kN/m or more between the polyimide resin and the stainless steel foil or copper foil after the polyimide metal laminate has been subjected to a heat treatment at 350° C. for 60 minutes; and no expansion or deformation after the polyimide metal laminate has been subjected to the heat treatment at 350° C. for 60 minutes.
摘要:
The invention provides a method for efficiently producing an aromatic diamine derivative represented by formula (3) at high yield, the method including reacting an aromatic amide represented by formula (1) with an aromatic halide represented by formula (2): (wherein each of Ar, Ar1 and Ar2 represents a substituted or unsubstituted aryl group or heteroaryl group; Ar3 represents a substituted or unsubstituted arylene group or heteroarylene group; and X represents a halogen atom).
摘要翻译:本发明提供一种以高收率有效地制备式(3)表示的芳族二胺衍生物的方法,该方法包括使由式(1)表示的芳族酰胺与式(2)表示的芳族卤化物反应: Ar,Ar 1和Ar 2表示取代或未取代的芳基或杂芳基; Ar 3表示取代或未取代的亚芳基或亚杂芳基 基团; X表示卤素原子)。
摘要:
An acoustic matching device has a water bag (64) that contains water and a water bag support frame (66) that sandwiches and supports the water bag on the left and right sides of the knee and curves along the knee cap. The water bag becomes a plate shape curved along the shape of the water bag support frame, which touches the knee cap and fits the unevenness of the knee. When an ultrasonic probe is moved along the knee cap, the acoustic matching between the knee cap and the ultrasonic probe is obtained.
摘要:
A mounting unit (16) is aligned by using a mounting unit frame (58) touching the thigh and a knee-contacting portion (62) touching the knee, with the knee being bent. The mounting unit is also equipped with a probe support frame (60) used for moving an ultrasonic probe along the knee cap. The probe support frame moves rotationally about the mechanical center of the knee joint, thereby allowing the ultrasonic probe (78) to move along the knee cap while facing toward the mechanical center of the knee joint and to perform scanning of an ultrasonic beam.
摘要:
Provided is an antimicrobial raw material having excellent antibacterial and corrosion-resistance properties, which can be directly formed as a film even on a plastic substrate with low heat-resistance or a substrate whereof the color or properties are likely to change due to heat, and this can be achieved at relatively low cost. The antimicrobial raw material is a laminated structure which comprises a substrate layer and a copper-tin alloy layer disposed on the substrate layer, and which has a thickness ranging from 5 nm to 200 nm. The substrate layer is made of resin, natural fiber, or paper, the resin having the deflection temperature under load being 115° C. or lower when measured in accordance with ASTM-D648-56 under a load of 1820 kPa. The copper-tin alloy layer contains over 60 at % but no more than 90 at % of copper and 10 at % or more but less than 40 at % of tin.