JPH0737305Y2 - Square chip type electronic component - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rectangular chip-shaped electronic component having a cubic shape.

[Prior Art] A typical chip-type electronic component having a rectangular parallelepiped shape is a multilayer chip-type capacitor. This capacitor is the fifth
As shown in the figure, a plurality of ceramic sheets provided with internal electrodes 4 are laminated, and these internal electrodes 4 are alternately connected to external electrodes 2 and 3 provided on both end surfaces of the electronic component 1.

[Problems to be Solved by the Invention] The above-mentioned square chip-shaped electronic components that have been conventionally used are cylindrical chips from a so-called loosely packed hopper that is cluttered and stored using an automatic electronic component mounting device for the following reasons. It was practically impossible to mount it on the circuit board together with the electronic parts.

That is, the square chip-shaped electronic component is replaced with a pipe-shaped chute b.
When it is conveyed through, as shown in FIG. 6, electronic parts often stop in a state of being tilted in the chute b and become jammed.

Further, even if the rectangular chip-shaped electronic component can pass through the chute a and be supplied onto the circuit board a, the electronic component faces various directions on the circuit board a. The most ideal is, as shown in FIG. 5, the electrodes c and d to be connected.
Is to be laid on top of,
In this state, the electrodes 2 and 4 provided on both end surfaces can be soldered to the electrodes c and d on the substrate a, respectively. But,
Actually, it may be mounted in a state as shown in FIGS. 7 and 8, and in this state, the electrodes 2 and 3 cannot be soldered.

The present invention aims to solve the above-mentioned conventional problems.

[Means for Solving the Problem] That is, the square chip electronic component according to the present invention is an electronic component.
11 is a cube, and each has electrodes 12 and 13 formed on three adjacent and different surfaces.

[Operation] Since this electronic component 11 is a cube, as shown in FIG. 3, no matter how it is tilted in the pipe-shaped chute b, the radial dimension of the chute b does not greatly change. Therefore, it is difficult for the electronic component to stop in the chute b.

Further, since the electronic component 11 is a cube, and the electrodes 12 and 13 are provided on the three surfaces adjacent to each other, as shown in FIG. Even if they are placed, the electrodes 12 and 13 are always on the electrodes c and d on the substrate a, and are on the plane perpendicular to the surfaces of the electrodes c and d. This makes it possible to solder both electrodes 12, 13 to the respective electrodes c, d of the circuit board a. Further, the other electrodes 12, 13 of the cubic electronic component 11 are not formed respectively. Of the electrodes 12, 13 over the three surfaces of
Therefore, even if the width of the electrodes c and d is slightly wider than that of the electronic component 11, the electrodes 12 and 13 are not short-circuited.

[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS.

In the illustrated embodiment, a rectangular monolithic capacitor is shown as the electronic component 11. That is, as shown in FIG. 2, the illustrated electronic component 11 is formed in a cubic shape by laminating dielectric ceramic sheets 16 having internal electrodes 14 and 15. The internal electrodes 14 and 15 are provided on two adjacent side surfaces 21 and 22 of the electronic component 11.
And 23, 24, and are connected to the external electrodes 12, 13 formed on these surfaces, respectively.

The external electrodes 12 and 13 are side surfaces 21, 22 and 23 of the electronic component 11,
Besides 24, they are formed on the upper surface 25 and the lower surface 26, respectively. That is,
When the external electrode 12 extends over the side surfaces 21, 22 and the upper surface 25,
13 is formed over the side surfaces 23, 24 and the lower surface 26. In other words, one of the external electrodes 12 is provided on the three surfaces 21, 22, 25 having the apex angle 18 of the electronic component 11 as one corner,
Three faces 23, 24 with one apex angle 19 facing 18
The other external electrode 13 is provided at 25. Of course, the external electrodes 12 and 13 are separated from each other on each surface of the electronic component 11 and insulated from each other.

This electronic component 11 can be installed from a loosely packed hopper to an automatic electronic component mounting device, a so-called multi-mounter, by which a fourth
As shown in the figure, it is mounted on a circuit board a and soldered to its electrodes c and d. In this case, it is advisable to apply a solder resist or the like to the part where the electrodes 12 and 13 are partitioned.

1 to 4, for the sake of convenience of description, a shape in which the ridges and corners of the electronic component 11 are right angles is shown. It is desirable that the ridges and corners of 11 have some roundness.

[Effect of the Invention] As described above, the square chip electronic component of the present invention is
The pipe-shaped chute b is less likely to stagnate, and the pair of electrodes 12, which is placed on the wiring board a in any posture,
13 can be soldered to the electrodes c and d which are arranged to face each other on the circuit board a. Therefore, it becomes possible to mount the electronic components on the circuit board a at the same time as the cylindrical chip type electronic components by using the automatic electronic component mounting device from the hoppers packed in bulk.

[Brief description of drawings]

1 is a perspective view of a rectangular chip type electronic component showing an embodiment of the present invention, FIG. 2 is a partial sectional perspective view of the electronic component, and FIG. 3 is a sectional view showing a state of the electronic component in a chute. Figure, 4th
The figure is a perspective view showing the mounting state of the electronic component on the wiring board,
FIG. 5 is a partial cross-sectional perspective view showing a state in which a square chip electronic component is mounted on a wiring board showing a conventional example, and FIG. 6 is a cross-sectional view showing a state of the electronic component in a chute, FIGS. FIG. 8 is a perspective view showing a mounting state of the electronic component on a wiring board. 11 …… electronic parts, 12, 13 …… electrodes, 21-24 …… side surfaces of electronic parts, 25 …… top surface of electronic parts, 25 …… bottom surface of electronic parts

Claims (1)

[Scope of utility model registration request] 1. A rectangular chip-type electronic component having a pair of electrodes, wherein the electronic component (11) is a cube, and the electrodes (12), (13) are formed over three mutually adjacent surfaces. Square chip type electronic parts characterized by.