WO2022131586A1 - 코일 부재 및 이를 포함하는 카메라 모듈 - Google Patents
코일 부재 및 이를 포함하는 카메라 모듈 Download PDFInfo
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- WO2022131586A1 WO2022131586A1 PCT/KR2021/016931 KR2021016931W WO2022131586A1 WO 2022131586 A1 WO2022131586 A1 WO 2022131586A1 KR 2021016931 W KR2021016931 W KR 2021016931W WO 2022131586 A1 WO2022131586 A1 WO 2022131586A1
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- Prior art keywords
- pattern
- plating
- layer
- disposed
- substrate
- Prior art date
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/003—Printed circuit coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
Definitions
- the embodiment relates to a coil member and a camera module including the same.
- a camera module is a representative example that can take a photo or video of a subject, store the image data, and edit and transmit it as needed.
- Conventional camera modules may be roughly classified into camera modules such as a fixed focus (F.F) type, an auto focus (A.F) type, and an optical image stabilization (OIS) type.
- F.F fixed focus
- A.F auto focus
- OIS optical image stabilization
- a coil member disposed on a circuit board may be included as a component for implementing an anti-shake function.
- Such a coil member may be formed by disposing a coil-shaped electrode on a substrate.
- the coil member may be formed by forming a plurality of coil members on a large-area substrate and cutting each coil member using a laser.
- plating lines may be connected to each coil member. Accordingly, after the coil member is cut, cut plating lines may remain on each coil member.
- the plating line may protrude to the outside of the substrate as the substrate around the plating line is removed together in the area where the plating line is cut.
- the protective layer is not disposed on the plated wire protruding to the outside, there is a problem in that the reliability of the coil member is deteriorated due to corrosion of the plated wire.
- An embodiment is to provide a coil member having improved reliability and a camera module including the same.
- a coil member includes: a substrate including a first surface and a second surface opposite to the first surface; a wiring pattern disposed on the substrate; and a plating pattern connected to the wiring pattern, wherein a thickness of the plating pattern is smaller than a thickness of the wiring pattern.
- a protrusion length of the plating pattern protruding from the end of the substrate may be reduced.
- the laser intensity or irradiation time may be greater in the region where the plating pattern is disposed on the substrate than in other regions to remove the plating pattern.
- the substrate in the peripheral area where the plating pattern is disposed may be removed together.
- the degree to which the substrate is removed may increase in proportion to the intensity of the laser and the irradiation time. Accordingly, as the thickness of the plating pattern increases, the intensity of the laser and the irradiation time of the laser increase, thereby increasing the area from which the substrate is removed in the area where the plating pattern is disposed. That is, the degree to which the substrate is removed during the process of cutting the plating pattern may be proportional to the thickness of the plating pattern.
- the substrate in the peripheral region on which the plating pattern is disposed is removed together.
- the plating pattern may be disposed to protrude from the end of the substrate. Accordingly, defects may occur due to poor appearance and reliability of the coil member due to corrosion of the protruding protrusion pattern, and when the coil member is coupled to the printed circuit board.
- the coil member according to the embodiment may reduce the thickness of the plating pattern. Accordingly, when cutting the coil member, the laser intensity and irradiation time can be reduced to solve the above problems.
- the thickness of the plating pattern may be thinner than that of other patterns. Accordingly, when the coil member is cut, it is possible to minimize removal of the substrate in the peripheral region of the plating pattern. Accordingly, after the coil member is cut, the length at which the plating pattern of the coil member protrudes from the end of the substrate may be minimized.
- FIG. 1 is a view for explaining a cutting process of a coil member according to an embodiment.
- FIG. 2 is an enlarged view of area A of FIG. 1 .
- FIG 3 is a view for explaining the exposure of the plating line of the coil member according to the embodiment.
- FIG. 4 is a view showing a bottom view of the coil member according to the embodiment.
- FIG. 5 is a view showing a top view of a coil member according to the embodiment.
- FIG. 6 is a view showing a cross-sectional view taken along region B-B' of FIG. 4 .
- FIG. 7 is a view illustrating a cross-sectional view taken along a region C-C' of FIG. 4 .
- FIG. 8 and 9 are views illustrating a cross-sectional view taken along a line D-D' of FIG. 4 .
- FIG. 10 is a view showing a cross-sectional view taken along area E-E' of FIG. 4 .
- 11 to 13 are views for explaining a masking process and a cutting process formed on a plating line in a manufacturing process of a coil member according to an embodiment.
- FIG. 14 is a diagram illustrating a perspective view of a camera module including a coil member according to an embodiment.
- the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.
- the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it can be combined with A, B, and C. It may include one or more of all possible combinations.
- a component when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.
- top (above) or bottom (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components.
- 1 to 3 are views for explaining a manufacturing process of the coil member according to the embodiment.
- a plurality of coil member regions CA may be formed on the substrate 110 , and a circuit pattern (not shown) forming a coil member may be disposed inside each coil member region.
- the circuit pattern disposed inside the coil member area CA may be formed through a plating process. Accordingly, in order to arrange the circuit pattern in the coil member area CA, plating lines PL for forming a plating layer may be connected to each coil member area CA.
- a circuit pattern formed of a plating layer may be formed in the coil member area CA by the current transmitted through the plating line PL.
- the plating line PL may include two plating lines PL of a cathode and an anode, and the two plating lines PL may be connected to one coil member area CA. That is, each of the coil member regions CA may be connected to two plating lines transmitting current to one surface of the substrate 110 and two plating lines transmitting current to the other surface of the substrate 110 .
- one plating line transmitting current to one surface of the substrate 110 may be connected to each coil member region CA, and one plating line transmitting current to the other surface of the substrate 110 may be connected to each of the coil member regions CA.
- at least two or more plating wires may be connected to one surface or the other surface of the substrate in the coil member region.
- the substrate 110 may be cut.
- the substrate 110 may be cut along the cutting line CL of the plurality of coil member regions CA disposed on the substrate 110 .
- each unit coil member may be separated from the substrate 110 by irradiating a laser along the cutting line CL of the plurality of coil member regions.
- the cutting line CL may include both a region where only the substrate 110 is disposed and a region where the plating line PL is disposed on the substrate 110 .
- the substrate 110 and the plating line PL may have different laser absorption rates.
- the laser absorption rate of the plating line PL may be smaller than the laser absorption rate of the substrate 110 . That is, the laser absorption rate of the plating line PL including the metal may be smaller than the laser absorption rate of the substrate 110 including the plastic.
- the intensity of the laser is greater than that of the region where only the substrate 110 is disposed, or the laser irradiation time is longer than the substrate 110 . It can only be longer than the area where it is placed.
- the substrate 110 may also be removed while the plating line is cut in a peripheral region where the plating line is disposed. Accordingly, as shown in FIG. 3 , the plating line PL from the last cut coil member may protrude from the end of the substrate 100 and be exposed to the outside.
- the coil member according to the embodiment to be described below is to provide a coil member capable of minimizing the size of the protrusion of the plating wire generated during the cutting process of the coil member as described above.
- Figure 5 is a view showing a top view of the coil member according to the embodiment.
- the coil member 1000 may include a substrate 100 , a plurality of circuit patterns, and a protective layer.
- the substrate 100 may be formed by cutting the above-described substrate 110 into the unit coil member 1000 .
- the substrate 100 may be a flexible substrate. That is, the substrate 100 may include a flexible plastic.
- the substrate 100 may be a polyimide (PI) substrate.
- PI polyimide
- the embodiment is not limited thereto, and the substrate 100 may be a substrate made of a polymer material such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN).
- the substrate 100 may be an insulating substrate. That is, the substrate 100 may be an insulating substrate supporting various circuit patterns.
- the substrate 100 may have a thickness of 20 ⁇ m to 100 ⁇ m.
- the substrate 100 may have a thickness of 25 ⁇ m to 75 ⁇ m.
- the substrate 100 may have a thickness of 30 ⁇ m to 40 ⁇ m.
- the thickness of the substrate 100 exceeds 100 ⁇ m, the overall thickness of the coil member may increase.
- the thickness of the substrate 100 is less than 20 ⁇ m, the substrate 100 may be vulnerable to heat and pressure in the process of forming the coil electrode of the substrate 100 .
- a layer h may be formed on the substrate 100 .
- a hole h passing through the substrate 100 may be formed in the central region of the substrate 100 .
- the hole h may serve as a driving of the camera module, for example, a sensing hole.
- the circuit pattern may be disposed on the substrate 100 .
- the circuit pattern may be disposed on both surfaces of the substrate 100 . That is, the circuit pattern may be disposed on the first surface 1S of the substrate 100 and the second surface 2S opposite to the first surface 1S.
- the circuit pattern may be disposed on the first surface 1S of the substrate 100 or on the second surface 2S opposite to the first surface 1S. That is, the circuit pattern may be disposed on at least one of the first surface 1S of the substrate 100 and the second surface 2S opposite to the first surface 1S.
- the circuit pattern may include a plurality of types of patterns.
- the circuit pattern may include a plurality of types of patterns according to roles, positions, and connection relationships of the patterns.
- the circuit pattern may include a wiring pattern, a plating pattern, and a dummy pattern.
- the wiring patterns 210 and 220 may include a first wiring pattern 210 and a second wiring pattern 220 .
- the wiring patterns 210 and 220 are disposed on the first wiring pattern 210 disposed on the first surface 1S of the substrate 100 and the second surface 2S of the substrate 100 .
- a second wiring pattern 220 may be included.
- the first surface 1S of the substrate 100 may be defined as a surface facing the printed circuit board of the camera module on which the coil member 1000 is disposed, and the second surface of the substrate 100 ( 2S) may be defined as a surface opposite to the first surface 1S.
- the first wiring pattern 210 may be disposed on a lower surface of the coil member 1000 .
- the first wiring pattern 210 may be disposed in a coil shape of a closed loop shape on the first surface 1S of the substrate 100 . That is, the first wiring pattern 210 may be a first coil pattern disposed on the first surface 1S of the substrate 100 .
- the first wiring pattern 210 may include a wiring part 211 and a pad part 212a 212b.
- the first wiring pattern 210 may be electrically connected to a printed circuit board disposed under the coil member 1000 through the pad part 212a 212b.
- the second wiring pattern 220 may be disposed on the upper surface of the coil member 1000 .
- the second wiring pattern 220 may be disposed in a coil shape of a closed loop shape on the second surface 2S of the substrate 100 . That is, the second wiring pattern 220 may be a second coil pattern disposed on the second surface 2S of the substrate 100 .
- the first wiring pattern 210 and the second wiring pattern 220 may be connected to each other.
- the first wiring pattern 210 and the second wiring pattern 220 may be connected to each other through via holes formed in the substrate 100 .
- the first wiring pattern 210 may include a 1-1 connection region and a 1-2 connection region.
- a first via hole V1 may be formed in the 1-1 connection region, and a second via hole V2 may be formed in the 1-2 connection region.
- the second wiring pattern 220 may include a 2-1 th connection region and a 2-2 th connection region.
- the first via hole V1 may be formed in the 2-1 connection region, and the second via hole V2 may be formed in the 2-2 connection region.
- One or two or more of the first via hole V1 or the second via hole V2 may be formed, respectively.
- a plurality of the first via hole V1 or the second via hole V2 is formed, even if a connection defect occurs in any one of the via holes during the process, connection is possible in the other via hole, thereby minimizing the characteristic defect of the coil member.
- the wiring pattern of the connection region may be formed to be wider than the wiring pattern forming the loop. Accordingly, when the first wiring pattern and the second wiring pattern are connected through the connection region, an alignment defect in which the first wiring pattern, the connection region, and the second wiring pattern are not connected can be prevented.
- the first wiring pattern 210 may include a first pad part 212a and a second pad part 212b.
- a signal is transmitted from the first pad part 212a on the first surface 1S of the substrate 100 connected to the printed circuit board, the signal is transmitted from the outside along the first wiring pattern 210 to the inside. is transmitted to the 1-1 connection area in a coil shape, and is transmitted from the 1-1 connection area to the 2-1 connection area of the second surface 2S through the first via hole V1.
- the signal is transmitted from the inside to the outside in a coil shape along the second wiring pattern 220 to the 2-2 connection region, and is formed on the first surface 1S through the second via hole V2. It may be transferred to the 1-2 connection area. Subsequently, the signal may be transmitted to the second pad part 212b along the first wiring pattern 220 , and the signal may be transmitted back to the printed circuit board.
- Each of the first pad part 212a or the second pad part 212b may be formed of one or two or more pad parts.
- the first pad part 212a or the second pad part 212b may be formed in plurality. Through this, it is possible to prevent contact failure that may occur when the pad part and the printed circuit board are connected.
- the plating pattern may be the plating line PL remaining on the substrate 100 after the plating line PL described with reference to FIGS. 1 to 3 is cut.
- the plating pattern may include a first plating pattern and a second plating pattern.
- the plating pattern is disposed on the first surface 1S of the substrate 100 and includes a first plating pattern including a 1-1 plating pattern 311 and a 1-2 plating pattern 312 and the substrate.
- a second plating pattern disposed on the second surface 2S of ( 100 ) and including a 2-1 th plating pattern 321 and a 2 - 2 th plating pattern 322 may be included.
- the plating pattern is disposed on the first surface 1S of the substrate 100 and includes a first plating pattern including at least one of a 1-1 plating pattern 311 and a 1-2 plating pattern 312 .
- a plating pattern or a second plating pattern disposed on the second surface 2S of the substrate 100 and including at least one of a 2-1 plating pattern 321 and a 2-2 plating pattern 322; may include That is, the plating pattern may include at least one of a first plating pattern and a second plating pattern.
- the 1-1 plating pattern 311 and the 1-2 plating pattern 312 may be connected to the first wiring pattern 210 .
- the 1-1 plating pattern 311 and the 1-2 plating pattern 312 may be connected to a first wiring pattern 210 disposed at an outermost portion of the first wiring patterns 210 .
- the first wiring pattern 210 includes a plating layer formed through an electrolytic plating process using a current transmitted through the 1-1 plating pattern 311 and the 1-2 plating pattern 312 . can do.
- the 2-1 th plating pattern 321 and the 2-2 th plating pattern 322 may be connected to the second wiring pattern 220 .
- the 2-1 th plating pattern 321 and the 2-2 th plating pattern 322 may be connected to a second wiring pattern 220 disposed at an outermost portion of the second wiring patterns 220 .
- the second wiring pattern 220 includes a plating layer formed through an electrolytic plating process using a current transmitted through the 2-1 plating pattern 321 and the 2-2 plating pattern 322 . can do.
- the first plating pattern may be disposed to extend to an end of the substrate 100 .
- the first plating pattern may be disposed to extend to further protrude from the end of the substrate 100 .
- the second plating pattern may be disposed to extend to an end of the substrate 100 .
- the second plating pattern may be disposed to extend to further protrude from the end of the substrate 100 .
- the plating pattern may be disposed to protrude from an end of the substrate 100 .
- the protrusion length l of the plating pattern may be 30 ⁇ m or less.
- the protrusion length l of the plating pattern may be smaller than a first distance d defined as a maximum distance between the substrate 100 and a first wiring pattern disposed at the outermost among the first wiring patterns. have.
- the protruding length l of the plating pattern may be greater than the width of the wiring patterns 210 and 220 .
- the protrusion length l of the plating pattern may be greater than an interval between the wiring patterns 210 and 220 .
- the design freedom of the camera module decreases due to an increase in the size of the coil member, and accordingly, the camera module may also increase in size.
- the coil member according to the embodiment may reduce the protrusion length of the plating pattern protruding from the end of the substrate 100 . Accordingly, the length of the plating pattern exposed to the outside in the coil member may be reduced. That is, the coil member may reduce the length of the plating pattern exposed to the outside without a protective layer.
- the layer structure of the plating pattern may be thinner than that of other patterns.
- the first plating pattern and the second plating pattern may be formed in a layer structure different from that of the first wiring pattern 210 and the second wiring pattern 220 .
- the first plating pattern and the second plating pattern may be formed to have different heights from the first wiring pattern 210 and the second wiring pattern 220 .
- the first plating pattern and the second plating pattern may be formed to have different widths from the first wiring pattern 210 and the second wiring pattern 220 .
- the layer structure, height, and width of the first plating pattern and the second plating pattern and the first wiring pattern 210 and the second wiring pattern 220 will be described in detail below.
- the dummy patterns 410 and 420 may include a first dummy pattern 410 and a second dummy pattern 420 .
- the dummy patterns 410 and 420 are disposed on the first dummy pattern 410 disposed on the first surface 1S of the substrate 100 and the second surface 2S of the substrate 100 .
- a second dummy pattern 420 may be included.
- the first dummy pattern 410 and the second dummy pattern 420 are the wiring patterns 210 and 220 and the plating on the first surface 1S and the second surface 2S of the substrate 100, respectively. It may be disposed on an area where the pattern is not disposed. That is, the first dummy pattern 410 and the second dummy pattern 420 may be disposed to be spaced apart from the wiring patterns 210 and 220 and the plating pattern.
- first dummy pattern 410 and the second dummy pattern 420 may be disconnected from other patterns and may be disposed. That is, a signal may not be transmitted to the first dummy pattern 410 and the second dummy pattern 420 . That is, a signal is not transmitted to the first dummy pattern 410 and the second dummy pattern 420 , and the first dummy pattern 410 and the second dummy pattern 420 are connected to the substrate 100 .
- the first plating pattern and the second plating pattern may be formed in a layer structure different from that of the first dummy pattern 410 and the second dummy pattern 420 . Also, the first plating pattern and the second plating pattern may be formed to have different heights from the first dummy pattern 410 and the second dummy pattern 420 . In addition, the first plating pattern and the second plating pattern may be formed to have different widths from the first dummy pattern 410 and the second dummy pattern 420 .
- the layer structure, height, and width of the first plating pattern and the second plating pattern, and the first dummy pattern 410 and the second dummy pattern 420 will be described in detail below.
- FIG. 6 is a view showing a cross-sectional view taken along region B-B' of FIG. 4 . That is, FIG. 6 is a cross-sectional view illustrating a wiring pattern of a coil member according to an embodiment.
- a first wiring pattern 210 and a second wiring pattern 220 may be disposed on the substrate 100 .
- a first wiring pattern 210 disposed on the first surface 1S of the substrate 100 and a second wiring pattern 210 disposed on the second surface 2S of the substrate 100 are disposed on the substrate 100 .
- a wiring pattern 220 may be disposed.
- the wiring patterns 210 and 220 may include a plurality of layers.
- the wiring patterns 210 and 220 may include a plurality of conductive layers.
- the wiring patterns 210 and 220 may be sequentially stacked on the substrate 100 on the first layer L1, the second layer L2, the third layer L3, and the fourth layer ( L4) may be included.
- the first layer L1 may be disposed on the substrate 100 .
- the first layer L1 may be disposed in direct contact with the substrate 100 .
- the first layer L1 may be formed in multiple layers.
- the first layer L1 may include at least one of nickel, chromium, and titanium. That is, the first layer L1 may include at least one of a nickel layer, a chromium layer, and a titanium layer.
- the first layer L1 may include a nickel layer and a chromium layer on the nickel layer.
- the first layer L1 may be formed through an electroless plating or sputtering process.
- the first layer L1 may be disposed to have a thin thickness.
- the first layer L1 may be disposed to a thickness of 20 nm or less.
- the first layer L1 may be a layer that improves adhesion between the second layer L2 disposed on the first layer L1 and the substrate 100 .
- the nickel layer may have good adhesion to the substrate 100
- the chromium layer may have good adhesion to the nickel layer and the second layer L2 . Accordingly, the adhesion of the second layer L2 disposed on the substrate 100 may be improved.
- the second layer L2 may be disposed on the first layer L1 .
- the second layer L2 may include the same or different material as the first layer L1 .
- the second layer L2 may include a metal material having excellent conductivity.
- the second layer L2 may be copper (Cu), aluminum (Al), chromium (Cr), nickel (Ni), silver (Ag), or molybdenum (Mo). It may include a metal layer including at least one of gold (Au), titanium (Ti), and alloys thereof.
- the second layer L2 may include copper. That is, the second layer L2 may be a copper layer.
- the second layer L2 may be formed through electroless plating.
- the second layer L2 may be disposed to have a thickness greater than that of the first layer L1 .
- the second layer L2 may be disposed to have a thickness of 0.1 ⁇ m to 1 ⁇ m.
- the third layer L2 may be disposed on the second layer L2 .
- the third layer L3 may include the same material as the second layer L2 .
- both the second layer L2 and the third layer L3 may include copper. That is, the third layer L3 may be a copper layer.
- the second layer L2 and the third layer L3 including the same material may be distinguished from each other by a difference in the grain of each layer.
- the third layer L2 may be formed through electrolytic plating using the second layer L2 as a seed layer. That is, the second layer L2 may be a seed layer for electrolytic plating of the third layer L3 , and the third layer L3 may be a plating layer formed through the electrolytic plating.
- the third layer L3 may be disposed to have a thickness greater than that of the first layer L1 and the second layer L2 . In detail, the third layer L3 may be disposed to have a thickness of 20 ⁇ m to 50 ⁇ m.
- the fourth layer L4 may be disposed on the third layer L3 .
- the fourth layer L4 may be disposed in contact with side surfaces and upper surfaces of the third layer L3 .
- the fourth layer L4 may be disposed while being spaced apart from the substrate 100 and in contact with side surfaces and upper surfaces of the third layer L3 . That is, the fourth layer L4 may be disposed to be spaced apart from the substrate 100 .
- a height of the circuit pattern may be increased more than a width thereof.
- the fourth layer L4 may include the same material as the second layer L2 and the third layer L3 .
- the second layer L2 , the third layer L3 , and the fourth layer L4 may all include copper. That is, the fourth layer L4 may be a copper layer.
- the fourth layer L4 may be a plating layer formed through the electrolytic plating.
- a current may be applied again through the plating line to form the fourth layer L4 .
- the fourth layer L4 may be formed through one or more plating processes, and a plurality of layers having different textures may be formed on the fourth layer L4 according to the number of plating processes.
- the fourth layer L4 may be disposed to have a smaller thickness than the third layer L3 .
- the fourth layer L4 may be disposed to have a thickness of 5 ⁇ m to 15 ⁇ m.
- the wiring patterns 210 and 220 may further include a fifth layer.
- the fifth layer may be disposed on the pad portions 212a and 212b of the wiring pattern.
- the fifth layer may be disposed on the fourth layer L4.
- the fifth layer may be disposed on the pad part to facilitate adhesion when the coil member and the terminal of the printed circuit board are connected.
- the fifth layer may include the same or a different material from the second to fourth layers.
- the fifth layer may include tin (Sn). That is, the fifth layer may include a tin layer.
- the fifth layer may include both copper and tin.
- the content of tin may be increased in the fifth layer while extending from the fourth layer L4 toward the top surface of the fifth layer.
- the fifth layer may be smaller than the thickness of the second to fourth layers.
- the thickness of the fifth layer may be 0.3 ⁇ m to 0.8 ⁇ m.
- Protective layers 510 and 520 may be disposed on the wiring patterns 210 and 220 .
- the protective layers 510 and 520 may be disposed while surrounding the wiring patterns 210 and 220 . Accordingly, it is possible to prevent oxidation of the wiring pattern by external moisture, air, and the like, and to prevent film removal of the wiring pattern.
- the protective layers 510 and 520 may be disposed to partially expose the wiring pattern.
- the protective layers 510 and 520 may be disposed on the wiring part 211 and not on the pad parts 212a and 212b. That is, the protective layer 300 may be disposed to expose the pad parts 212a and 212b.
- the wiring pattern disposed on the first surface 1S of the substrate 100 that is, the lower surface of the coil member, is a printed circuit of the camera module on which the coil member is disposed through the pad parts 212a and 212b. It may be connected to the terminal of the board.
- the passivation layers 510 and 520 may include a first passivation layer 510 and a second passivation layer 520 .
- the protective layers 510 and 520 are disposed on the first protective layer 510 disposed on the first surface 1S of the substrate 100 and the second surface 2S of the substrate 100 .
- a second passivation layer 520 may be included.
- the first protective layer 510 and the second protective insect 520 may be disposed to have different thicknesses.
- the first passivation layer 510 may be disposed to have a thickness smaller than that of the second passivation layer 520 . That is, the first protective layer 510 disposed on one surface 1S of the substrate on which the pad part of the wiring pattern is disposed is the second protective layer 520 to connect the pad part and the terminal of the printed circuit board. ) may be disposed with a thinner thickness.
- the thickness of the protective layers 510 and 520 may be 10 ⁇ m to 40 ⁇ m.
- the embodiment is not limited thereto, and the thickness of the second passivation layer 520 of the substrate may be reduced to have the same or similar thicknesses of the first passivation layer and the second passivation layer.
- the thickness of the protective layers 510 and 520 exceeds 40 ⁇ m, the thickness of the coil member may increase.
- the thickness of the protective layers 510 and 520 is less than 10 ⁇ m, the reliability of the wiring pattern of the coil member may be deteriorated.
- the protective layers 510 and 520 may include an insulating material.
- the protective layers 510 and 520 may include various materials that may be applied to protect the surface of the wiring pattern and then cured by heating.
- the protective layers 510 and 520 may be resist layers.
- the protective layers 510 and 520 may be a solder resist layer including an organic polymer material.
- the protective layers 510 and 520 may include an epoxy acrylate-based resin.
- the protective layers 510 and 520 may include a resin, a curing agent, a photoinitiator, a pigment, a solvent, a filler, an additive, an acryl-based monomer, and the like.
- the embodiment is not limited thereto, and the protective layers 510 and 520 may be any one of a photo-solder resist layer, a cover-lay, and a polymer material.
- FIG. 7 is a view illustrating a cross-sectional view taken along a region C-C' of FIG. 4 . That is, FIG. 7 is a cross-sectional view illustrating a plating pattern of a coil member according to an embodiment.
- a first plating pattern 310 and a second plating pattern 320 may be included on the substrate 100 .
- the first plating pattern 310 disposed on the first surface 1S of the substrate 100 and the second plating pattern 320 disposed on the second surface 2S of the substrate 100 were formed. may include
- FIG. 7 illustrates that the first plating pattern 310 and the second plating pattern 320 are overlapped in the thickness direction of the substrate 100, the embodiment is not limited thereto, and the first plating pattern 320 is not limited thereto.
- the plating pattern 310 and the second plating pattern 320 may be disposed to be shifted from each other in the thickness direction of the substrate 100 .
- the implementation is not limited thereto, and only one plating pattern among the first plating pattern 310 and the second plating pattern 320 may be disposed on the substrate 100 .
- the first plating pattern 310 and the second plating pattern 320 may include a plurality of layers.
- the first plating pattern 310 and the second plating pattern 320 may include a plurality of conductive layers.
- the first plating pattern 310 and the second plating pattern 320 include the first layer L1, the second layer L2, and the third layer L3 that are sequentially stacked. can do.
- the first plating pattern 310 and the second plating pattern 320 may be arranged in a layer structure different from that of the wiring patterns 210 and 220 described above.
- the first plating pattern 310 and the second plating pattern 320 may not include the fourth layer L4 unlike the wiring patterns 210 and 220 .
- the embodiment is not limited thereto, and the first plating pattern 310 and the second plating pattern 320 may include the first layer L1 and the second layer L2 that are sequentially stacked.
- the first plating pattern 310 and the second plating pattern 320 may not include the third layer L3 and the fourth layer L4 unlike the wiring patterns 210 and 220 .
- the thickness of the first plating pattern 310 ( T1) and the thickness T2 of the second plating pattern 320 may be smaller than the thickness of the wiring patterns 210 and 220 .
- the thickness T1 of the first plating pattern 310 and the thickness T2 of the second plating pattern 320 are greater than the thickness of the fourth layer L4 than the thickness of the wiring patterns 210 and 220 . As such, the thickness may be small.
- the width W1 and the width W2 of the second plating pattern 320 may also be smaller than the widths of the wiring patterns 210 and 220 .
- the fourth layer L4 disposed on the side surfaces of the wiring patterns 210 and 220 is not disposed on the side surfaces of the first plating pattern 310 and the second plating pattern 320 , the first The width W1 of the plating pattern 310 and the width W2 of the second plating pattern 320 are also smaller than the widths of the wiring patterns 210 and 220 by the width of the fourth layer L4.
- a protrusion length of the plating pattern protruding from the end of the substrate may be reduced.
- the laser intensity or irradiation time may be greater than that of other regions in order to remove the plating pattern in the region where the plating pattern is disposed on the substrate. have.
- the substrate in the peripheral area where the plating pattern is disposed may be removed together.
- the degree to which the substrate is removed may increase in proportion to the intensity of the laser and the irradiation time. Accordingly, as the thickness of the plating pattern increases, the intensity of the laser and the irradiation time of the laser increase, thereby increasing the area from which the substrate is removed in the area where the plating pattern is disposed. That is, the degree to which the substrate is removed during the process of cutting the plating pattern may be proportional to the thickness of the plating pattern.
- the substrate in the peripheral region on which the plating pattern is disposed is removed together.
- the plating pattern may be disposed to protrude from the end of the substrate. Accordingly, defects may occur due to poor appearance and reliability of the coil member due to corrosion of the protruding protrusion pattern, and when the coil member is coupled to the printed circuit board.
- the coil member according to the embodiment reduces the thickness of the plating pattern, thereby reducing the intensity of the laser and the irradiation time when cutting the coil member, thereby solving the above problems. That is, in the coil member according to the embodiment, the thickness of the plating pattern may be thinner than that of other patterns. Accordingly, when the coil member is cut, it is possible to minimize removal of the substrate in the peripheral region of the plating pattern. Accordingly, it is possible to minimize the length at which the plating pattern of the coil member protrudes from the end of the substrate after cutting.
- protective layers 510 and 520 may be disposed on the plating patterns 310 and 320 .
- the protective layers 510 and 520 may be disposed while surrounding the wiring patterns 310 and 320 . Thereby, oxidation of the plating pattern by external moisture, air, etc. can be prevented, and film removal of the wiring pattern can be prevented.
- the plating patterns 310 and 320 disposed on the substrate 100 by the protective layers 510 and 520 may be protected by external moisture or the like.
- Protective layers 510 and 520 may be partially disposed on the plating patterns 310 and 320 .
- the protective layers 510 and 520 are disposed on the plating patterns 310 and 320 supported by the substrate 100 , and the plating patterns 310 and 320 protruding from the ends of the substrate 100 .
- the protective layers 510 and 520 may not be disposed thereon. This will be described in more detail with reference to FIGS. 8 and 9 .
- FIGS. 8 and 9 are views illustrating a cross-sectional view taken along a line D-D' of FIG. 4 . That is, FIGS. 8 and 9 are cross-sectional views of a region in which a plating pattern and a wiring pattern of a coil member are connected according to an embodiment.
- the plating patterns 310 and 320 may be disposed while being connected to the wiring patterns 210 and 220 .
- the plating patterns 310 and 320 may be integrally formed with the wiring patterns 210 and 220 .
- the first plating pattern 310 is connected to the first wiring pattern 210 disposed at the outermost of the first wiring patterns
- the second plating pattern 320 is the second wiring pattern among the second wiring patterns. It may be connected to the second wiring pattern 220 disposed at the outermost part.
- first plating pattern 310 and the first wiring pattern 210 may be integrally formed
- second plating pattern 320 and the second wiring pattern 220 may be integrally formed
- the thickness T1 of the first plating pattern 310 is smaller than the thickness T3 of the first wiring pattern 210
- the thickness T2 of the second plating pattern 320 is the second 2 It may be smaller than the thickness T4 of the wiring pattern 220 .
- the plating patterns 310 and 320 may include a first region and a second region 2A depending on whether the protective layers 510 and 520 are disposed.
- the plating patterns 310 and 320 may include a first region 1A in which the protective layers 510 and 520 are disposed and a second region 2A in which the protective layers 510 and 520 are not disposed.
- the second region 2A may be a region in which the plating pattern protrudes from the ends of the protective layers 510 and 520 .
- the side surface of the substrate between the first plating pattern 310 and the second plating pattern 320 in the second region 2A which is a region from which the plating patterns 310 and 320 protrude, is formed in a convex shape.
- the coil member is cut as shown in FIG. 9 , in the side surface LE of the substrate between the second regions 2A, the region close to the plating pattern is removed more by the laser than the far region, so that the coil After cutting the member, the side surface of the substrate between the second regions 2A may be formed in a convex shape.
- FIG. 10 is a view showing a cross-sectional view taken along area E-E' of FIG. 4 .
- a dummy pattern may be disposed on the substrate 100 .
- the first dummy pattern 410 and the second dummy pattern 420 may be disposed to overlap or not overlap each other in the thickness direction of the substrate 100 .
- the dummy patterns 410 and 420 may include a plurality of layers.
- the dummy patterns 410 and 420 may include a first layer L1 , a second layer L2 , a third layer L3 , and a fourth layer L4 that are sequentially stacked.
- the dummy patterns 410 and 420 may be disposed in the same layer structure as the wiring patterns 210 and 220 described above.
- the first plating pattern 310 and the second plating pattern 320 do not include the fourth layer L4 unlike the dummy patterns 410 and 420 , the first plating pattern 310 .
- a thickness T1 and a thickness T2 of the second plating pattern 320 may be smaller than a thickness T5 of the dummy patterns 410 and 420 .
- the thickness T1 of the first plating pattern 310 and the thickness T2 of the second plating pattern 320 are greater than the thickness of the fourth layer L4 than the thicknesses of the dummy patterns 410 and 420 . As such, the thickness may be small.
- the width W1 and the width W2 of the second plating pattern 320 may be smaller than the widths of the dummy patterns 410 and 420 .
- the fourth layer L4 disposed on the side surfaces of the dummy patterns 410 and 420 is not disposed on the side surfaces of the first plating pattern 310 and the second plating pattern 320 , the first The width W1 of the plating pattern 310 and the width W2 of the second plating pattern 320 are smaller than the widths of the wiring patterns 410 and 420 by the width of the fourth layer L4.
- the coil member according to the embodiment when a plurality of coil members are formed on a large-area substrate and then cut, a length in which a residual plating pattern of the coil member generated in the cutting process protrudes from the substrate may be minimized.
- the substrate in the region surrounding the plating pattern is removed together by the thickness of the plating pattern in the cutting process. It is possible to reduce the intensity and time of the laser used to cut the heavy plating pattern area.
- the area of the substrate removed together in the peripheral region of the plating pattern during the process of cutting the coil member may be reduced, thereby reducing the protrusion length of the plating pattern on the coil member protruding from the substrate after the cutting process.
- the external design of the coil member can be improved, and the protruding plating pattern can be prevented from being shorted with the pattern of the other member.
- 11 to 13 are views for explaining a masking process and a cutting process formed on a plating line in a manufacturing process of a coil member according to an embodiment.
- FIG. 11 is a view illustrating an area of FIG. 1
- FIG. 12 is a cross-sectional view taken along a region F-F′ of FIG. 11 .
- masking may be formed on the plating lines PL on the substrate 100 .
- the plating line PL is a region that becomes the plating pattern after the unit coil member is cut.
- the masking material 600 may be disposed on the plating line PL connected to the coil member area CA among the plating lines PL disposed on the substrate 100 .
- the masking material 600 may be disposed before forming the third layer L3 among the layers of the circuit pattern of the coil member and before forming the fourth layer L4 .
- the masking material 600 may be disposed before forming the second layer L2 among the layers of the circuit pattern of the coil member and before forming the third layer L3. It may include the same or similar material as the layer.
- a masking material may be disposed on the plating lines PL before the fourth layer L4 is formed on the circuit pattern of the coil member. Subsequently, a fourth layer L4 may be formed on the circuit pattern of the coil member.
- the fourth layer L4 is not disposed on the plating line PL, but a wiring pattern 200 connected to the plating line. ) may be disposed on the fourth layer L4 only.
- the coil member may be cut along the cutting line CL.
- the plating line PL of the cutting line CL does not include the third layer L3 and/or the fourth layer L4, the plating line PL is greater than the thickness of the wiring pattern of the coil member. It may be disposed with a thin thickness.
- the intensity and irradiation time of the laser by the plating layer in the cutting line may be reduced. Accordingly, the area in which the substrate is removed from the region around the plating line PL can be reduced, so that the length of the plating pattern formed by the remaining plating line after cutting the coil member can be minimized by protruding from the substrate. have.
- FIG. 14 is a view showing a combined perspective view of a camera module according to an embodiment.
- the camera module 10 includes a cover can 1100 , a first mover 1200 , a second mover 1300 , a stator 1400 , a base 1500 , and an elastic unit. (1600).
- the camera module 10 according to the embodiment may further include a printed circuit board, an IR filter, an image sensor, and the like.
- the cover can 1100 accommodates the elastic unit 1600, the first mover 1200, the stator 1400, and the second mover 1300 and is mounted on the base 1500 to drive a lens. Forms the exterior of the motor. Specifically, the cover can 1100 is mounted on the base 1500 in close contact with some or all of the side surfaces of the cover can 1100, and protects internal components from external impacts and at the same time external contaminants It has an anti-penetration function.
- the cover can 1100 should also perform a function of protecting the lens driving motor or the components of the camera module from external interference generated by a mobile phone or the like. Therefore, the cover can 1100 is preferably formed of a metal material.
- the cover can 1100 may be implemented as a yoke unit itself, which will be described below, or may be fixed by molding the yoke unit on the inside.
- an opening 1110 through which a lens unit (not shown) is exposed is formed on the upper side of the cover can 1100 , and the lower end of the upper side of the cover can 1100 is bent inside the cover can 1100 .
- An inner yoke (not shown) may be formed. This inner yoke may be located in the concave portion 1213 formed in the bobbin 1210 . In this case, the inner yoke may be disposed at a corner around the opening on the upper side of the yoke portion or may be disposed on the side, and the concave portion of the bobbin may be formed at a corresponding position.
- the cover can 1100 may have at least one fastening piece 1120 extending on each side of the lower end thereof, and the base 1500 has a fastening groove 1520 into which the fastening piece 1120 is inserted.
- the fastening piece and the fastening groove may not be separate, or only one of the two may be formed.
- the first mover 1200 is disposed on the side of the lens unit to move the lens unit (not shown).
- the first mover 1200 includes a bobbin 1210 for fixing the lens unit, and a first coil member 1220 provided on an outer circumferential surface of the bobbin 1210 .
- the lens unit may be a lens barrel provided with one or more lenses (not shown), but is not limited thereto, and any holder structure capable of supporting the lens may be included.
- An inner circumferential surface of the bobbin 1210 is coupled to an outer circumferential surface of the lens unit to fix the lens unit.
- the bobbin 1210 may have a guide part 1211 , which guides the winding or mounting of the first coil member 1220 , on an outer circumferential surface thereof.
- the guide portion 1211 may be integrally formed with the outer surface of the bobbin 1210 , and may be formed continuously along the outer surface of the bobbin 1210 or may be formed to be spaced apart from each other by a predetermined interval.
- an upper spring 1710 or a lower spring 1720 provided on the upper side of the base 1500 to support the bobbin 1210 or a spring fastening protrusion to which the lower spring 1720 is fastened. 1212 may be formed.
- the inner yoke of the cover can 1000 may be positioned between the bobbin 1210 and the first coil unit 1220 wound around the bobbin 1210 . (1213) may be further included.
- first coil member 1220 may be guided by the guide part 1211 and wound on the outer surface of the bobbin 1210 , but four individual coils are formed on the outer surface of the bobbin 210 by 90°. They may be arranged at intervals.
- the first coil member 220 may receive power applied from a printed circuit board (not shown) to be described later to form an electromagnetic field.
- the second mover 300 is positioned opposite to the first mover 200 on a side surface of the first mover 200 , and a magnet disposed to face the first coil member 1220 . It may include a unit 1310 and a housing 1320 to which the magnet unit 1310 is fixed.
- the magnet unit 1310 is mounted to the housing 1320 with an adhesive or the like so as to be disposed at a position corresponding to the outer surface of the first coil member 1220, and is It is mounted at equal intervals on the corners of the dog to promote efficient use of the internal volume.
- the housing 1320 may be formed in a shape corresponding to the inner surface of the cover can 1100 forming the exterior of the lens driving motor.
- the housing 1320 is formed of an insulating material, and may be made as an injection molding product in consideration of productivity.
- the housing 1320 is a moving part for OIS driving and is spaced apart from the cover can 1100 by a certain distance. can be
- the housing 1320 is formed in a hexahedral shape spaced apart by a predetermined distance corresponding to the shape of the cover can 1100 , and the upper and lower sides are opened to support the first mover 1200 .
- the housing 1320 may include a magnet part fastening hole 1311 or a magnet part fastening groove formed in a shape corresponding to the magnet part 1310 on the side surface.
- stoppers 1312 that are formed to protrude at a predetermined distance from the upper surface of the housing 1320 and can absorb shock by contacting the upper surface of the cover can 1100 in case of external impact may be formed.
- the stopper 1312 may be formed integrally with the housing 1320 .
- an upper spring 1710 or a lower spring 1720 provided to support the housing 320 on the upper side of the base 500 to be described later is fastened to the upper and lower surfaces of the housing 320 .
- a fastening protrusion 1313 may be formed.
- stator 1400 is positioned opposite to the lower side of the second mover 1300 in order to move the second mover 1300, and has through-holes 1411 and 1421 corresponding to the lens unit. formed in the center
- the second coil member 1410 positioned opposite to the lower side of the magnet unit 1310 and the second coil member 1410 are disposed on the upper side to apply power and , and a board on which the OIS chip is mounted, and the board may be a printed circuit board (Printed Circuit Board, 1420). That is, the second coil member 1410 may be the coil member described above with reference to FIGS. 1 to 13 .
- the second coil member 1410 may be mounted on a printed circuit board 1420 provided on an upper side of the base 1500 or formed on a flexible printed circuit board or a substrate, and the light of the lens unit (not shown) A through hole 1411 is formed in the center to pass a signal.
- the second coil member 1410 is a FP (Fine Pattern) coil that is a patterned coil. It may be formed and disposed on the flexible printed circuit board.
- the flexible printed circuit board 1420 may be provided on an upper surface of the base 1500 to apply power to the second coil member 1410 , and a through hole 1411 of the second coil member 410 . ) and corresponding through-holes 1421 are formed.
- the printed circuit board 1420 includes a terminal portion 1422 having one end or both opposite ends bent and protruding below the base 1500 , and external power may be supplied through the terminal portion 1422 .
- the embodiment may further include a hall sensor unit (not shown) mounted on the lower or upper surface of the printed circuit board 1420 to correspond to the position of the magnet unit 1310 .
- a hall sensor unit (not shown) mounted on the lower or upper surface of the printed circuit board 1420 to correspond to the position of the magnet unit 1310 .
- the hall sensor unit senses the intensity and phase of the voltage applied to detect the movement of the magnet unit 310 and the current flowing through the coil, and interacts with the printed circuit board 1420 to precisely control the actuator.
- the hall sensor unit may be provided on a straight line with respect to the magnet unit 1310 and the optical axis direction, and has to detect displacements in the x-axis and y-axis, so that the hall sensor unit is adjacent to the edge of the printed circuit board 1420. It may include two Hall sensors provided at two corners, respectively, and a Hall sensor accommodating groove 1540 capable of accommodating the Hall sensor may be formed in the base 1500 . In addition, one or more Hall sensors may be provided.
- the hall sensor unit is provided closer to the second coil member 1410 than the magnet unit 1310, considering that the strength of the magnetic field formed in the magnet unit is several hundred times greater than the strength of the electromagnetic field formed in the coil, the magnet unit The influence of the second coil member 410 in detecting the movement of the 1310 is not considered.
- the lens unit is moved in all directions by the independent or organic interaction of the first mover 1200, the second mover 1300, and the stator 1400, so that the first mover 1200 and the second mover
- the image focus of the subject is focused by the interaction of 1300 , and hand shake can be corrected by the interaction of the second mover 1300 and the stator 1400 .
- the base 1500 supports the stator 1400 and the second mover 1300 , and a hollow hole 1510 corresponding to the through holes 1411 and 1421 is formed in the center.
- the base 1500 may function as a sensor holder to protect an image sensor (not shown), and may be provided to position an IR filter (not shown) at the same time.
- the IR filter may be mounted in the hollow hole 510 formed in the center of the base 1500, and an infrared filter may be provided.
- the IR filter may be formed of, for example, a film material or a glass material, and an infrared blocking coating material may be disposed on a plate-shaped optical filter such as a cover glass for protecting an imaging surface or a cover glass.
- a separate sensor holder may be positioned under the base.
- the base 1500 may be formed with one or more fixing protrusions 530 protruding from the upper corner to face or combine with the inner surface of the cover can 1100 , and these fixing protrusions 1530 are the It facilitates the fastening of the cover can 1100 and at the same time makes it possible to achieve firm fixation after fastening.
- two or more fixing protrusions may be formed.
- the base 1500 may be formed with a fastening groove 1520 into which the fastening piece 1120 of the cover can 1100 is inserted.
- the fastening groove 520 is formed locally on the outer surface of the base 1500 in a shape corresponding to the length of the fastening piece 1120 , or a predetermined bottom of the cover can 1100 including the fastening piece 1120 . It may be formed entirely on the outer surface of the base 1500 so that the part can be inserted.
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Abstract
Description
Claims (10)
- 제 1 면 및 상기 제 1 면과 반대되는 제 2 면을 포함하는 기판;상기 기판 상에 배치되는 배선 패턴; 및상기 배선 패턴과 연결되는 도금 패턴을 포함하고,상기 도금 패턴의 두께는 상기 배선 패턴의 두께보다 얇은 코일 부재.
- 제 1항에 있어서,상기 배선 패턴은 제 1 층, 제 2 층, 제 3 층 및 제 4 층이 순차적으로 적층되어 형성되고,상기 도금 패턴은 상기 제 1 층, 상기 제 2 층 및 상기 제 3 층이 순차적으로 적층되어 형성되는 코일 부재.
- 제 1항에 있어서,상기 도금 패턴은 상기 기판의 끝단에서 돌출하여 배치되는 코일 부재.
- 제 3항에 있어서,상기 도금 패턴의 돌출 길이는 상기 기판의 끝단과 상기 배선 패턴 중 최외곽 배선 패턴 사이의 제 1 거리보다 작은 코일 부재.
- 제 3항에 있어서,상기 도금 패턴의 돌출 길이는 상기 배선 패턴의 폭 및 간격 중 적어도 하나보다 큰 코일 부재.
- 제 1항에 있어서,상기 제 1 면 및 상기 제 2 면 중 적어도 하나의 면 상에 배치되는 더미 패턴을 더 포함하고,상기 도금 패턴의 두께는 상기 더미 패턴의 두께보다 얇은 코일 부재.
- 제 6항에 있어서,상기 도금 패턴의 폭은 상기 배선 패턴 및 상기 더미 패턴 중 적어도 하나의 폭보다 작은 코일 부재.
- 제 1항에 있어서,상기 배선 패턴은 상기 제 1 면 상에 배치되는 제 1 배선 패턴 및 상기 제 2 면 상에 배치되는 제 2 배선 패턴을 포함하고,상기 제 1 면 상에 배치되는 제 1 보호층 및 상기 제 2 면 상에 배치되는 제 2 보호층을 더 포함하고,상기 제 1 보호층 및 상기 제 2 보호층의 두께는 다른 코일 부재.
- 제 8항에 있어서,상기 제 1 배선 패턴은 배선부 및 패드부를 포함하고,상기 제 1 보호층의 두께는 상기 제 2 보호층의 두께보다 작은 코일 부재.
- 렌즈부를 이동시키기 위해 상기 렌즈부 측면에 배치된 제 1 가동자;상기 제 1 가동자의 측면에 상기 제 1 가동자와 대향되어 위치하는 제 2 가동자;상기 제 2 가동자를 이동시키기 위해 상기 제 2 가동자의 하측에 대향되어 위치하며, 상기 렌즈부와 대응되는 관통홀이 중앙에 형성되는 고정자;상기 고정자 및 제 2 가동자를 지지하며, 상기 제 2 가동자의 관통홀에 대응되는 중공홀이 중앙에 형성되는 베이스를 포함하고,상기 고정자는 회로기판 및 상기 회로기판 상에 배치되는 코일 부재를 포함하고,상기 코일 부재는,제 1 면 및 상기 제 1 면과 반대되는 제 2 면을 포함하는 기판;상기 기판 상에 배치되는 배선 패턴; 및상기 배선 패턴과 연결되는 도금 패턴을 포함하고,상기 도금 패턴의 두께는 상기 배선 패턴의 두께보다 얇은 카메라 모듈.
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CN202180085886.2A CN116686296A (zh) | 2020-12-17 | 2021-11-17 | 线圈构件及包括其的相机模块 |
US18/037,625 US20230408839A1 (en) | 2020-12-17 | 2021-11-17 | Coil member and camera module comprising same |
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KR1020200177710A KR20220087226A (ko) | 2020-12-17 | 2020-12-17 | 코일 부재 및 이를 포함하는 카메라 모듈 |
KR10-2020-0177710 | 2020-12-17 |
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Citations (5)
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JP2002076578A (ja) * | 2000-08-25 | 2002-03-15 | Ibiden Co Ltd | プリント配線板及びその製造方法 |
JP2010074118A (ja) * | 2008-08-21 | 2010-04-02 | Kyocera Corp | 多数個取り配線基板 |
JP2013175659A (ja) * | 2012-02-27 | 2013-09-05 | Kyocera Corp | 多数個取り配線基板 |
KR20150064997A (ko) * | 2013-12-04 | 2015-06-12 | 엘지이노텍 주식회사 | 카메라 모듈 |
KR20150101676A (ko) * | 2014-02-27 | 2015-09-04 | 엘지이노텍 주식회사 | 렌즈구동모터 |
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2020
- 2020-12-17 KR KR1020200177710A patent/KR20220087226A/ko unknown
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2021
- 2021-11-17 CN CN202180085886.2A patent/CN116686296A/zh active Pending
- 2021-11-17 US US18/037,625 patent/US20230408839A1/en active Pending
- 2021-11-17 WO PCT/KR2021/016931 patent/WO2022131586A1/ko active Application Filing
- 2021-12-17 TW TW110147567A patent/TWI808575B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002076578A (ja) * | 2000-08-25 | 2002-03-15 | Ibiden Co Ltd | プリント配線板及びその製造方法 |
JP2010074118A (ja) * | 2008-08-21 | 2010-04-02 | Kyocera Corp | 多数個取り配線基板 |
JP2013175659A (ja) * | 2012-02-27 | 2013-09-05 | Kyocera Corp | 多数個取り配線基板 |
KR20150064997A (ko) * | 2013-12-04 | 2015-06-12 | 엘지이노텍 주식회사 | 카메라 모듈 |
KR20150101676A (ko) * | 2014-02-27 | 2015-09-04 | 엘지이노텍 주식회사 | 렌즈구동모터 |
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CN116686296A (zh) | 2023-09-01 |
TWI808575B (zh) | 2023-07-11 |
TW202234432A (zh) | 2022-09-01 |
KR20220087226A (ko) | 2022-06-24 |
US20230408839A1 (en) | 2023-12-21 |
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