摘要:
A common mode filter is provided as one in a three-layered structure with improved high-frequency characteristics. The common mode filter 1 has the three-layered structure including a first coil layer 14, a second coil layer 18, and a lead layer 16. A first planar coil 21 and a second planar coil 41 of a substantially circular spiral shape are formed in the first and second coil layers 14, 18, respectively. A first lead wire 31 and a second lead wire 32 formed in a lead layer 16 have a first straight portion 31c and a second straight portion 32c, respectively. The first straight portion 31c is located on a straight line L1 perpendicular to a plurality of first tangent lines to spirals 22, 42 at a plurality of respective intersection points with the spirals 22, 42. The second straight portion 32c is located on a straight line L2 perpendicular to a plurality of second tangent lines to the spirals 22, 42 at a plurality of respective intersection points with the spirals 22, 42.
摘要:
A coil component 100 is provided with a substrate 11, a thin-film coil layer 12 provided on the substrate 11, first and second bump electrodes 13a, 13b provided on a surface of the thin-film coil layer 12, a first lead conductor 20 provided on the surface of the thin-film coil layer 12 together with the first and second bump electrodes 13a, 13b and formed integrally with the first bump electrode 13a, and an insulator layer 14 provided between the first bump electrode 13a and the second bump electrode 13b. The thin-film coil layer 12 contains a first spiral conductor 16 which is a plane coil pattern. The first bump electrode 13a is connected to an internal peripheral end of the first spiral conductor 16 via the first lead conductor 20. The second bump electrode 13b is connected to an external peripheral end of the first spiral conductor 16.
摘要:
A coil component 100 is provided with a substrate 11, a thin-film coil layer 12 provided on the substrate 11, first and second bump electrodes 13a, 13b provided on a surface of the thin-film coil layer 12, a first lead conductor 20 provided on the surface of the thin-film coil layer 12 together with the first and second bump electrodes 13a, 13b and formed integrally with the first bump electrode 13a, and an insulator layer 14 provided between the first bump electrode 13a and the second bump electrode 13b. The thin-film coil layer 12 contains a first spiral conductor 16 which is a plane coil pattern. The first bump electrode 13a is connected to an internal peripheral end of the first spiral conductor 16 via the first lead conductor 20. The second bump electrode 13b is connected to an external peripheral end of the first spiral conductor 16.
摘要:
The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and spiral conductors formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of gap electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the gap electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material. The gap of the ESD protection element is provided at exterior of the spiral conductor so as not to be overlapped with the spiral conductor in view of a laminating direction.
摘要:
The invention relates to an objective lens for converging light emitted by a light source to irradiate an optical recording medium with the convergent light, an actuator having the same, an optical head for recording information on the optical recording medium and reproducing information recorded on the same, and an information recording/reproducing apparatus utilizing the same. The invention provides an objective lens whose lens protecting section can be prevented from being coming off due to collision. The invention also provides an actuator, an optical head, and an optical recording/reproducing apparatus having the objective lens whose lens protecting section can be prevented from being coming off due to collision. An objective lens has a lens section and a lens peripheral section formed around the lens section integrally with the same. The lens peripheral section includes a separation preventing section which is formed in a region where a lens protecting section is secured and which prevents the lens protecting section from being separated from the lens peripheral section at the time of collision with an optical recording medium.