KR102115819B1 - A Providing Method Of Manufacturing Material Of Spiral Circuit For Inductor - Google Patents

Abstract

The present invention relates to a method for providing data on manufacturing of a spiral circuit for an inductor performed by a computer system including a control unit receiving power to be operated, an input unit connected to the control unit, a display unit connected to the control unit, and a storage unit connected to the control unit, and which comprises: a coil information input step of inputting information on unit size coordinates forming an outline, center via position coordinates, a center via size, a coil width, a coil interval (pitch) and a coil turn; an information extraction step of extracting, from the input coil information, information on curved portions, which is information on a plurality of the curved portions, and information on linear portions, which is information on a plurality of the linear portions each of which has both ends connected to a coil portion; and a display step of allowing the plurality of the curved portions, formed by the information on the curved portions, and the plurality of the linear portions, formed by the information on the linear portions, to realize an inductor coil with the center via, displaying the inductor coil on the display unit, calculating an area of the inductor coil and displaying the calculated area on the display unit. The present invention enables coils with various patterns to be selected according to established offsets.

Description

A Providing Method Of Manufacturing Material Of Spiral Circuit For Inductor

The present invention relates to a method for providing a spiral circuit manufacturing data for an inductor, and more particularly, to a method for providing a spiral circuit manufacturing data for an inductor that enables to confirm and apply a result for a new product in advance.

An inductor, one of the chip electronic components, is a typical passive element that removes noise by forming an electronic circuit with a resistor and a capacitor. It uses a electromagnetic characteristic to combine with a capacitor to amplify a signal in a specific frequency band. It is used for the construction of filter circuits and the like.

In accordance with the miniaturization and thinning of IT devices such as various communication devices or display devices, research into miniaturization and thinning of various elements such as inductors, capacitors, and transistors employed in IT devices has also been continuously conducted. Accordingly, the inductor has been rapidly converted to a chip that is compact and capable of high-density automatic surface mounting, and the development of a thin-film inductor formed by mixing magnetic powder with a resin on a coil pattern formed by plating on the upper and lower surfaces of a thin film insulating substrate. This continues.

1 is a schematic perspective view showing an internal coil of a chip electronic component. An example of a chip electronic component is a thin-film chip inductor 100 used in a power supply line of a power supply circuit, and the chip electronic component is suitably applied as chip beads, chip filters, and the like. The thin film inductor 100 includes a magnetic body 50, an insulating substrate 23, and coils 42 and 44 as conductors. The magnetic body 50 forms the appearance of the thin film inductor 100, and is not limited as long as it is a material that exhibits magnetic properties. For example, a ferrite or metal-based soft magnetic material is formed. As the ferrite, Mn-Zn ferrite, Ni-Zn ferrite, Ni-Zn-Cu ferrite, Mn-Mg ferrite, Ba ferrite or Li ferrite, etc. are used. Fe-Si-B-Cr-based amorphous metal powder material is used.

The magnetic body 50 has a regular hexahedral shape as shown in FIG. 1, and when the direction of the hexahedron is defined, L, W, and T shown in FIG. 1 represent a length direction, a width direction, and a thickness direction, respectively. It is common that the magnetic body 50 has a shape of a rectangular parallelepiped in which the length in the longitudinal direction is larger than the length in the width direction.

The insulating substrate 23 formed inside the magnetic body 50 is formed of a thin thin film and is a material capable of forming coils 42 and 44 by plating, such as a PCB substrate, a ferrite substrate, and a metal soft magnetic substrate. Is formed into. The central portion of the insulating substrate 23 penetrates to form a hole, and the hole is filled with a magnetic material such as ferrite or a metal-based soft magnetic material to form a core portion. Inductance (L) may be improved by forming a core portion filled with a magnetic material.

A coil 42 having a coil-shaped pattern is formed on one surface of the insulating substrate 23, and a coil 44 having the same pattern is formed on the opposite surface of the insulating substrate 23. The coils 42 and 44 are spiral-shaped patterns, and the coils 42 and 44 formed on one side and the opposite side of the insulating substrate 23 are via electrodes 46 formed on the insulating substrate 23. It is electrically connected through. The coils 42 and 44 and the via electrode 46 are metals having excellent electrical conductivity, for example, silver (Ag), palladium (Pd), aluminum (Al), nickel (Ni), titanium (Ti), gold (Au), copper (Cu), platinum (Pt), or alloys thereof. In general, an insulating film 31 is formed on the surfaces of the coils 42 and 44. The insulating film is formed by a known method such as a screen printing method, exposure of photoresist (PR), process through development, spray application, dipping process, and the like.

One end of the coil 42 formed on one surface of the insulating substrate 23 may be exposed in one cross section in the longitudinal direction of the magnetic body 50, and the coil formed on the opposite surface of the insulating substrate 23 ( One end of 44) may be exposed to the other cross section in the longitudinal direction of the magnetic body 50. External electrodes 31 and 32 are formed on both ends in the longitudinal direction so as to be connected to the coils 42 and 44 exposed in both ends in the longitudinal direction of the magnetic body 50. The external electrodes 31 and 32 may be formed to extend in both cross sections in the thickness direction and / or both cross sections in the width direction of the magnetic body 50.

The external electrodes 31 and 32 are formed of a metal having excellent electrical conductivity, such as nickel (Ni), copper (Cu), tin (Sn), or silver (Ag) alone or an alloy thereof.

In the manufacturing process of the coil forming the thin-film chip inductor 100 as described above, variables are not considered and are formed, and the manufacturer cannot select a variable, and there is a problem in which only the actual manufacturing form is considered.

Republic of Korea Publication No. 10-2015-0134858 Patent Publication

The present invention has been proposed to solve the problems of the prior art as described above, and for the purpose of providing a method of providing a spiral circuit manufacturing data for an inductor capable of forming a coil by selecting a manufacturer according to an offset set during coil formation. do.

The method for providing a spiral circuit manufacturing data for an inductor according to the present invention is operated in a computer system comprising a control unit that is operated by supplying power, an input unit connected to the control unit, a display unit connected to the control unit, and a storage unit connected to the control unit;

Inputting unit size coordinates forming an outline, center via position coordinates, center via size, coil width, coil spacing (pitch), and information about coil turns (coil information input step);

It consists of a step of deriving (information derivation step) of the curved portion information, which is information about the plurality of curved portions, and the linear portion information, which is information about the plurality of straight portions, both ends of which are connected to the coil portion, from the input coil information;

A plurality of curved portions formed by the curved portion information, and a plurality of straight portions formed by the straight portion information are formed in an inductor coil together with a center via and displayed on the display unit, and the area of the inductor coil is calculated and displayed together on the display unit It provides a method for providing data for manufacturing a spiral circuit for an inductor, characterized in that (display step).

In the above, the offset value for the coil spacing (pitch) is stored in advance in the storage unit; Offset curve part information and offset straight part information for the offset value of the coil spacing (pitch) is derived (offset information deriving step); The plurality of offset curve portions and the plurality of offset straight portions formed by the offset curve portion information are formed on the display portion by forming an offset inductor coil together with the center via, and the area of the offset inductor coil is calculated and displayed together on the display portion. Is done.

In the above, the inductor coil and the offset inductor coil are characterized by being displayed on the display unit together.

In the above, the inductor coil and the offset inductor coil are overlapped and displayed on the display unit.

In the above, the step of deriving the information is derived from the coordinates of the four corners and the center coordinates (O1, O1 ') of both corners from the unit size coordinates forming the outline, the coil width (W), and the coil spacing (P). Wow; Deriving the number of curves forming one curve portion and the number of curves forming the other curve portion from the coil turn information; A step of deriving the number of a plurality of straight portions on both sides of which both ends are connected to the curved portion, and calculating an outer radius of curvature and an inner radius of curvature of the plurality of curved portions forming one side of the curved portion; Calculating an outer curvature radius and an inner curvature radius of a plurality of curves forming the other curved portion; It characterized in that it comprises a step of calculating the area of the straight portion and the curved portion.

According to the method for providing a spiral circuit manufacturing data for an inductor according to the present invention, coils of various patterns can be selected by a set offset, and coil patterns can be easily selected by inputting minimal information.

1 is a perspective view showing an internal coil of a conventional chip electronic component,
Figure 2 schematically shows an input window provided in the coil information input step constituting the present invention,
Figure 3 is a plan view showing a coil shown to explain the information derivation step constituting the present invention,
FIG. 4 is an enlarged plan view showing the right curved portion of FIG. 3,
5 is an enlarged plan view of the left curved portion of FIG. 3.

Hereinafter, a method of providing a spiral circuit manufacturing data for an inductor according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 schematically shows an input window provided in the coil information input step constituting the present invention, and FIG. 3 is a plan view showing the coil shown in order to explain the information derivation step constituting the present invention, and FIG. 3 is an enlarged plan view showing the right curved portion, and FIG. 5 is an enlarged plan view showing the left curved portion of FIG. 3.

The method for providing a spiral circuit manufacturing data for an inductor according to the present invention is operated by a computer system (eg, a PC) comprising a control unit operated by supplying power, an input unit connected to the control unit, a display unit connected to the control unit, and a storage unit connected to the control unit. do. Of course, the program is loaded on the smartphone as an application, and it is also possible to operate on the smartphone.

In the spiral circuit manufacturing data providing method for an inductor according to the present invention, information on unit size coordinates forming an outline, center via position coordinates, center via size, coil width, coil spacing (pitch), and coil turn are input. Becoming a step (coil information input step);

A step (information derivation step) of deriving information on the curved portions, which is information on a plurality of curved portions, and information on the straight portions, which are information on a plurality of straight portions connected at both ends of the coil information from the input coil information;

The plurality of curved portions 210 formed by the curved portion information and the plurality of straight portions 220 formed by the straight portion information are formed on the inductor coil 200 together with the center via 203 and displayed on the display unit, It includes a step (display step) of the area of the inductor coil 200 is calculated and displayed on the display unit together.

When the program for executing the method for providing the spiral circuit manufacturing data for the inductor according to the present invention stored in the storage unit is driven, an input window as shown in FIG. 2 is displayed on the display unit. The user inputs each corresponding value in the input window shown in FIG. 2 (coil information input step).

In FIG. 2, the values X and Y input to the Unit Size indicate the horizontal and vertical lengths of the quadrilaterals surrounding the coil. Frame Width represents the spacing between the quadrangular outer side surrounding the coil 200, Center Via Position represents the position coordinates of the vias (Via, 203) formed at the inner end of the coil 200, and Center Via Size is The via diameter represents the coil width, the coil width (W), the coil pitch represents the coil spacing (pitch, P), which is the spacing between coils, and the coil turn count represents the coil winding number measured in the via. The entered value is stored in the storage unit.

In the coil information input step, each value is typed, an input button (not shown) is clicked, and the information deriving step is performed.

Of the above inputs, the vertex coordinates of the quadrilateral from the length (X) and the length (Y) of the quadrilateral ([x1, y1), (x2, y1), (x1, y2), (x2, y2) ] Is calculated and stored in the storage unit. For example, if x1 and y1 are set to 0 (zero) respectively, vertex coordinates are calculated in such a way that x2 becomes X and y2 becomes Y. Hereinafter, a case where the horizontal length X is larger than the vertical length Y will be exemplarily described.

Then, as shown in FIGS. 4 and 5 from the vertex coordinates and the coil width W and the coil spacing P information, the center portions O1 and O1 'of both curved portions are calculated and stored in the storage unit. The central portion of the curved portion of one side is calculated from the vertex coordinates, and the central portion of the curved portion of the other side is calculated from the vertex coordinates, the coil width W and the coil spacing P, and stored in the storage unit.

Hereinafter, as illustrated in FIG. 3, the external electrode connection unit 201 is formed on the left side, and an example of inward coiling while going from left to right will be described as an example.

The center [O1 (x0, y0)] of the right curve portion is calculated from vertex coordinates, so that x0 = x2- (y2-y1) / 2, y0 = (y2-y1) / 2. The center of the left curved part [O1 '(x0', y0 ')] is calculated from the vertex coordinates, so x0' = x1 + (y2-y1) / 2 + (W + P) / 2, y0 '= (y2-y1) / 2- (W + P) / 2. The center of the left curved portion is shifted and positioned by (W + P) / 2 on one side in the vertical direction than the center of the right curved portion.

If the coil turn indicates the number of coil turns, when the coil turn is 4, it is counted at the straight portion of the portion connected to the via, and in the range from the curved portion having the external electrode connection portion to the via, the coil turn becomes 4, the other curved portion and The coil turn of the remaining straight part is usually three.

When the coil turn is 4, the outer radius r1 of the outermost curved portion R1 of the right curved portion shown in FIGS. 3 and 4 is the radius of curvature ρ1 from the center of the longitudinal direction to the side (y2- y1) / 2, and the radius of curvature ρ2 of the inner line of the outermost curved portion R1 is calculated as ρ1-W. The radius of curvature ρ3 of the outer line r3 of the middle curved portion R2 is calculated as ρ1- (W + P), and the radius of curvature ρ4 of the inner line r4 of the middle curved portion R2 is ρ1. It is calculated as-(2W + P). Then, the radius of curvature ρ5 of the outer line r5 of the inner curved portion R3 is calculated as ρ1- (2W + 2P), and the inner line r6 of the inner curved portion R3 has a radius of curvature ρ6 of ρ1. It is calculated as-(3W + 2P). The calculated radius of curvature is stored in the storage unit.

3 and 5, since the outer line r1 'of the outermost curved portion R1' of the left curved portion, the radius of curvature ρ1 'is the distance from the center in the vertical direction to the far side. It is calculated as (y2-y1) / 2 + (W + P) / 2, and the radius of curvature ρ2 'of the inner line of the outermost curved portion R1 is calculated as ρ1'-W. The radius of curvature ρ3 'of the outer line r3' of the outer intermediate curved portion R2 'is calculated as ρ1'-(W + P), and the radius of curvature ρ4 'of the inner line r4' is ρ1 '. It is calculated as-(2W + P). The radius of curvature ρ5 'of the outer line r5' of the inner intermediate curved portion R3 'is calculated as ρ1'-(2W + 2P), and the radius of curvature ρ6 'of the inner line r6' is ρ1 '. It is calculated as-(3W + 2P). And the radius of curvature ρ7 'of the outer line r7' of the innermost curved portion R4 'is calculated as ρ1'-(3W + 3P), and the radius of curvature ρ8 'of the inner line r8' is ρ1. '-(4W + 3P). The calculated radius of curvature is stored in the storage unit.

The outermost curved portion R1 'is formed in a ¼-circle shape, and the remaining curved portion is formed in a ½-circle shape.

The length of the straight portions (L1, L2, L3) constituting the straight portion is the value obtained by subtracting the distance from the quadrangular horizontal length (X) to the center of both sides, X-[(y2-y1) / 2 + (y2-y1) ) / 2 + (W + P) / 2] and stored in the storage unit. The length of the straight portion L4, the innermost end of which is connected to the via 203, is calculated by Xv-[(y2-y1) / 2 + (W + P) / 2] and stored in the storage unit.

The area of the coil composed of the straight portion and the curved portion including the via is calculated according to the information calculated above, and the coil shape is displayed on the display portion together with the area.

An offset is set and stored in the storage unit. The offset may be designated by the user and stored in the storage unit, or may be set by adding a value set to the coil interval P input by the user. The offset is stored as a value of the same digit as the coil spacing P, and is set within a range of ± 80% of the coil spacing P. For example, when the input coil spacing P is 0.005 mm, offsets may be set to 0.002, 0.003, and 0.004. When the coil spacing P is changed by the set offset, and the input coil spacing P is 0.005, the offset coil spacing is 0.007, 0.008, and 0.009, and is calculated and offset as calculated above for each offset coil spacing. Information about the offset linear portion and the offset linear portion for the coil is derived, and the area is calculated, and the coil shape is displayed along with the area on the display unit.

The offset coil may be displayed side by side with the coil input by the user, or may be displayed overlapping.

As described above, the coil shape and area are displayed on the display unit along with the offset coil shape and the area, so that the user can select coils of various patterns by offset, and can easily select the coil pattern by inputting minimal information. have.

200: inductor coil 201: external electrode connection
203: center via 210: curved portion
220: straight part

Claims (5)

It is operated in a computer system comprising a control unit that is supplied with power, an input unit connected to the control unit, a display unit connected to the control unit, and a storage unit connected to the control unit;
Inputting unit size coordinates forming an outline, center via position coordinates, center via size, coil width, coil spacing (pitch), and information about coil turns (coil information input step);
It consists of a step of deriving (information derivation step) from the input coil information, information about a plurality of curved portions and information about a plurality of curved portions connected to a curved portion, and information about a plurality of straight portions connected to a curved portion;
A plurality of curved portions formed by the curved portion information, and a plurality of straight portions formed by the straight portion information are formed in an inductor coil with a center via and displayed on the display unit, and the area of the inductor coil is calculated and displayed together on the display unit. (Display step);
The offset value for the coil spacing (pitch) is stored in advance in the storage unit; Offset curve part information and offset straight part information for the offset value of the coil spacing (pitch) is derived (offset information deriving step); The plurality of offset curve portions and the plurality of offset straight portions formed by the offset curve portion information are formed on the display portion by forming an offset inductor coil together with the center via, and the area of the offset inductor coil is calculated and displayed together on the display portion. Spiral circuit manufacturing data supply method for inductors. delete The method of claim 1, wherein the inductor coil and the offset inductor coil are displayed together on a display unit. The method of claim 1, wherein the inductor coil and the offset inductor coil are overlapped and displayed on a display unit. The method of claim 1, wherein the step of deriving information Deriving the coordinate information of the four corners and the center coordinates (O1, O1 ') of the two curved parts from the unit size coordinates forming the outline, the coil width (W), and the coil spacing (P); Deriving the number of curves forming one curve portion and the number of curves forming the other curve portion from the coil turn information; A step of deriving the number of a plurality of straight portions on both sides of which both ends are connected to the curved portion, and calculating an outer radius of curvature and an inner radius of curvature of the plurality of curved portions forming one side of the curved portion; Calculating an outer curvature radius and an inner curvature radius of a plurality of curves forming the other curved portion; Method of providing a spiral circuit manufacturing material for an inductor, characterized in that it comprises the step of calculating the area of the straight portion and the curved portion.

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