JPS5896717A - Manufacture of laminated type coil part - Google Patents

Abstract

PURPOSE:To contrive the miniaturization of laminated type coil parts and the simplicity of manufacture by a method wherein a ceramic layer and a half- turn coil conductive layer are alternately stacked. CONSTITUTION:A conductor layer 2 is printed on the green sheet 1 of a ceramic layer. This layer 2 is composed of a coil section 2a composing half-turn coil and a leader section 2b. Next, a ceramic layer 3 is coated and formed on the layer 2. This layer 3 is provided with a window 3a exposing the end section 2 of the layer 2, while a half-turn coil conductive layer 4 is printed. One end 4' of the layer 4 is connected to the end section 2' and one turn of the coil is formed by the layers 2, 4. Next, a ceramic layer 5 is formed to expose only the other end 4'' of the layer 4 and a conductive layer 6 is printed on the ceramic layer 5. One end 6' of the layer 6 is connected to the other end 4'' of the layer 4. Then, the similar process is repeated until the predetermined number of turns arrives. In this way, a coil having the predetermined number of turns is formed and both ends of the coil are led out by dividing into both ends by leader sections 2b, 7b.

Description

DETAILED DESCRIPTION OF THE INVENTION The unexploded i% is laminated to form a coiled turn with 44 layers sandwiched between ceramic layers.
+171. Regarding a method for manufacturing laminated coil components, we will soon develop a method for manufacturing coil components as chip components that can be directly dimensioned onto a printed circuit board without using lead wires, with the aim of miniaturizing them and simplifying manufacturing costs. There are four propositions.

(1) The following is an explanation based on the non-inventive example.

First, as shown in FIG. 7 (IL), a raw sheet (green sheet) of a ceramic layer is used as a thin loquat-walled sheet.
Prepare +. This green sheet Ill is an example k vi
Apply the slurry obtained by mixing Ceramic material, binder, OTJ agent, and solvent to a shaped board (not shown) using a doctor grade, for example, in 4 predetermined areas and 1 inch. It is pure. Next, this green sheet fi
1, print the first #4-(2) in a printing pattern as shown in Figure 47. This first 4 stratification +21 V
'i Groove the coil semi-circular part (2)
a) 7. It is formed from a drawer lead part (2b) extending from one end thereof to the edge of the green sheet Ill.

The material for this four-electrode layer (2) is, for example, a palladium, which is printed by screen printing or the like.

Also, the drawer lead part (
The reason why 2b) is covered with cedar is that it will be connected in a four-dimensional manner to this when forming the external drawer' magnetic pole (described later).
). Next, the slurry is printed on the entire surface in a printing pattern as shown in FIG. 1(B), thereby forming a tentative form of the first ceramic j→(3) as shown in the first layer (C). This ceramic layer 3j of g/'i 7th 4th layer + 4 parts 12 of df21
1 f , one g in J i q- (3a)'Z
Furthermore, the second conductive layer (4
)? 77: Mark until the point shown in Figure 1 (Fig. 1).One end of this second four wax layers (4) ) Connect the first conductive wire between the ends 12r of (2) and form a coil/turn with the first and second solder layers f21+41. There is.Next -Jij-4
Print the slurry with the printing pattern shown on the wax layer (41 base edges (in Figure 1, so that only 4 sections are exposed) and apply the second ceramic layer (5) on top of this with the electrified cedar wire. Then, the Al117 is brought into the state shown in Figure 1 (e), and then the third 4 wax layers (6) are printed on top of it in the pattern shown in Figure 1 (E). f).This third conductive layer (
6) - The window (5a) of the second ceramic layer (6)
) is exposed from the pond (4?) of the second humid layer (4).
It is joined with n.

From this step, as shown by the arrows in FIG. 1, the step of printing the entire first ceramic layer (3) is repeated. Then, print the stone/ceramic layer 3) in the manner described above to form a collar as shown in Figure 7 (Q).

Next is the second humiliation, -141 complete first diagram? ) to print the third 4′@layer (6) lt! 14
: , Ghi and -4l4r of the second four wax layers (4) are bonded. Ceramic shaft of 2), f,
J's 4'4 m A61, 4th grade, R1d L
So, do the product and seng. Then, when the state shown in Stone/A (f) is reached, the JA Agency will start the printing process of the ceramic layer (3) of Stone/ again, and the four waxes, 1st, 2nd and A3, ・Life: 2+ [41 :7'1. until the predetermined turn recovery is stopped by sl. I am completely humbled. Then, when the number of turns is 4, in the state shown in Fig. 37 (θ), that is, when the ceramic rva +bl of f1 has reached -11 times, the 1-j pattern shown in Fig. 37 (v) is reached. Hirozo 1
- Shape Haruka (7) into the shape shown in Figure 37 (2). The printed pattern shown in FIG. ).

The result obtained in this way is 81
A coil with a predetermined number of turns is formed by 4.4.1 on the instep of 4 ceramics. It is separated and pulled out.This laminate +81 is 7Jf
Then, each ceramic layer Ill, 31 + 31...
・151+51"-・ is baked uniformly, t-L, and the binder and solvent are burned off to form f#, @ body. Then, the drawer 1d g (21)) ('i '
This drawer lead g(”
) (7b), as shown in FIG. 3, apply 4-paste such as 6-paste to form a pair of external lead-out electrodes (9191).

Through the above steps, the single-layer coil component +101 of /,1 is completed. Incidentally, the ceramic layer '5r can also be laminated so that only four lead portions (7) are formed on the first ceramic layer.

This laminated coil component 11Q+ is assembled using a general chi(5)
) It can be done in the same way as the knob parts. For example, Figure 47Q
'As shown, print base 1 old), 1 concubine □1
21 was used to heat the laminated area coil part (101) once.

44 patterns of print base i 1111 (l], a)
(lla) are brought into contact with the external drawer troughs til++91 of the 4i-layer oak coil parts+101, respectively. After this, if the printed circuit board bend is immersed in a melting tank after the layered coil component 1101 is exposed, a conductive pattern (lla) will be formed (as shown in FIG. 5). lla)
and external extraction electrode +91 +91 are half 1:f (11a
It is connected pneumatically and mechanically at l lIm.

By the way, in the above embodiment, /llI! is used for brevity of explanation.
This is an explanation of the case where the horizontal 1-type coil component 'd' is manufactured separately. In order to thoroughly apply the present invention, the pattern of horizontal 1-type coil parts of 4N arranged in a predetermined manner is as follows:
, and will be manufactured using this technology. In this case, when the process progresses to the state shown in FIG. 7(g), the laminate 114) is rolled up in the shape shown in the figure, for example. This I# layer body I is a multi-layered carp (6) of /114.
It was sent to me. Therefore, this laminated body 141 is cut and separated at a predetermined cut 1v1 position (each machine indicated by an arrow in the figure), and then cut and separated as shown in Fig. 2.
It is possible to pass through the stack (8) of - type coil components. In short, the product-less type coil component of the present invention has the advantage of simplifying the number of installations into four, especially by manufacturing a large number of them at once.

In addition, in the above-mentioned January '4 Example, the first/and second ceramic layer i31 flit and the second, second, ? The lead was repeated one layer + 41 + 61 times J printing τpJJ times, and the predetermined turn & was supposed to be submerged. In the process shown in Figure 1, the process of giving back is 4! Take jA minute, (-1 (1)) -(OJ→(d) -(θ)→(
All you have to do is complete the work in the order of 2).

'Also, the coil part of the 4' title layer printed during this line layer (
2a) The shape of 141 (61(]a) is not necessarily above, l
¥J'% It's necessary to make it into a U-shape like the example (, +91
For example, it can be made into a circular arc shape.

By the way, top i! E! , The 1-type coil part (Lα is an air-core coil part without a core, l'ζ, which was occupied by the machine in the example).In contrast, let's remanufacture the 41 m-type coil part with a core. In this case, it is sufficient to place the core + i + < material in the predetermined position ', A] tIIIJ on the printed laminated layer shown in Figure A1. An example of the device process is shown in Figure 2.

The difference between the kesa kakeruya shown in Fig. 62 and the miller 1 shown in Fig. 7 is that J.
The first ceramic d (10
3) And! , perform 10 printings of the second ceramic layer (105), and repeat the first printing and the first ceramic layer (105).
3) Immediately after (105) he i.i.
Using +:f] printing pattern as shown in
51 mark At1lJ & strike. In other words,
The ceramic jlli (103) has the first 44 layers + 21 + 61 ends + 2rtef, and the window (103) has a core material such as ferrite powder and a hole for embedding 15i. (103b) is cut by 17FJ. Also, the first ceramic layer (105) K %+
, +=++sni・a r ノ+4m+4+ノ1snrv
1 In the pond of the window (105a), core member 161
g (1051)) for embedding has been opened. Then, the printing pattern of the core member 11i1 (l, the above window (
1 (131)) (105b).

'The manufacturing process shown in Figure 2 is f
The process is carried out in the same way as the manufacturing process explained in Figure 7.Then, when a laminate of laminated coil components in the state shown in Figure 47 and 18) is obtained, it is fully pressurized and each ceramic layer is (103)(103)...(105)(10
5) After fA, several predetermined external drawer poles are placed and formed to produce a laminated coil component with a core. :
According to LL], a laminated type coil is produced by alternately laminating ceramic 1- and half-turn coils of 4NjIr! 1≦It is possible to manufacture the product a and its ideal layer can be made by a predetermined mark 411 pattern for all the multiple waves 1-minute at once, and the pattern design is also 8MI, so the crack is 1IiIl Since the coil component as a chip component can be reworked, it can be miniaturized.

[Brief explanation of the drawing]

Figure 7 is a diagram illustrating a splitting machine according to an embodiment of the present invention.
The figure is a perspective view showing one unit manufactured through the process shown in figure A7, figure 7 is a perspective view showing the finished product as a laminated coil component, and figure V is the figure f'. Figure 46 is a side view showing the state in which L is temporarily mounted on one printed circuit board, Figure 46 is a side view showing the soldered state, and Figure 4 (Figure 4) is a side view showing the state in which it is soldered. FIG. 2 is a perspective view illustrating the present invention.
This is a diagram of the moon. +11talt51 (103) (105)... Ceramic layer, +21141 (81i71 @ ,
J4 '4@, (3a) (5a) (103a)
(105a) e @ window. Patentee A: Agent of Nippon Electric Co., Ltd., Ehara Province Hide Agohara

Claims (1)

[Claims] Ill (! On the ramic layer, 4t of coil half turn
I [! 1 layer with cedar mourning, 1 layer with 4 layers of ceramic layered on top of it so that the printed part looks like A, and 1 layer. In order to electrically connect one end to the 44th layer of the animal power ra-1, one end of the coil half-turn is connected to the 4th part of the coil, and one part of the coil is connected to the 44th layer, and one end of the coil is connected to the other end of the 44th layer. This process is used to prevent tearing of laminated coil parts with metal ridges.