Electroplating method for integrally fired inductor

Abstract

The present invention relates to the technical field of inductors, and proposes an electroplating method for an integral co-fired inductor, comprising the following steps: step one, preparing a prefabricated top blank, a prefabricated winding, a prefabricated bottom blank and a prefabricated wire to make an inductor blank; step two, heating and pressurizing the inductor blank by a hot press; step three, after cooling and bonding, forming a circuit layer on the surface of the inductor blank by laser marking of a laser marking machine; step four, plating the inductor blank with a required electroplating layer by an electroplating process; step five, removing excess electroplating material on the electroplating layer of the inductor blank by a laser marking process of a laser marking machine. The electroplating method for an integral co-fired inductor proposed by the present invention not only simplifies the preparation process, but also reduces the size of the inductor, and the surface of the component is flat, so that the accuracy can be improved, the contact resistance of the power module components can be reduced, and the inductance and magnetic flux density of the product can be improved at the same time, thereby achieving the effect of reducing the loss.

Description

Technical Field

[0001] The present invention relates to the technical field of inductors, and in particular to an electroplating method for an integral co-fired inductor. Background Art

[0002] The inductor used in the existing power module is usually a ferrite air gap inductor with an external pin pin or a co-fired inductor with an external pin pin or a co-fired inductor with a bent electrode. For example, a method for manufacturing a nickel-zinc ferrite PIN product and a special jig for implementing the method are disclosed in the announcement number CN1877761B. The manufacturing method of the nickel-zinc ferrite PIN product is to first apply glue to the pin hole of the nickel-zinc ferrite core, and then insert the PIN pin into the pin hole of the nickel-zinc ferrite core to make a nickel-zinc ferrite PIN semi-finished product, put the semi-finished product into a jig, and put them into a drying device together, so that the semi-finished product is tilted in a way that the nickel-zinc ferrite core is lower than the PIN pin, and the product is shaken by means of the small vibration generated by the drying device in the heating and constant temperature, so that the glue, the PIN pin and the ferrite core are combined with each other.

[0003] The inductor prepared by the manufacturing method of the above-mentioned nickel-zinc ferrite PIN product needs to be attached with a pin after forming to form a circuit. After attaching the pin, the overall volume of the inductor increases, and the pin is directly attached to the magnet with glue, so there will be some gap between the pin and the magnet, thereby increasing the volume of the inductor. In addition, the pin surface will be uneven, which will affect the reliability of the circuit and the volume of the power module. Therefore, the existing power module adopts the pin-attaching method to reduce the welding reliability and power density. How to solve the technical problems that the existing power module inductor adopts the traditional pin-attaching method, such as large volume, low power density, and poor welding reliability, is a difficult problem that existing manufacturers need to solve. Summary of the invention

[0004] The present invention provides an electroplating method for an integral co-fired inductor, which solves the problems of excessively large inductor volume, low power density and poor welding reliability in the prior art.

[0005] The technical solution of the present invention is as follows: A method for electroplating an integral co-fired inductor comprises the following steps:

[0006] Step 1: prepare a prefabricated top blank, a prefabricated winding, a prefabricated bottom blank and a prefabricated wire to make an inductor pressed blank, place the prefabricated winding on the prefabricated bottom blank and expose it to the prefabricated bottom blank, place the prefabricated wire corresponding to the prefabricated winding on the prefabricated bottom blank, apply a layer of epoxy resin adhesive on the surface of the prefabricated bottom blank except the prefabricated wire, and then place the prefabricated top blank and the prefabricated bottom blank to press and fit, so as to form an integrated inductor pressed blank in which the prefabricated winding and the prefabricated wire are tightly fitted;

[0007] Step 2, heating and pressurizing the inductor blank by a hot press;

[0008] Step 3, after cooling and bonding, a circuit layer is formed on the surface of the inductor blank by laser marking with a laser marking machine;

[0009] Step 4, plating the required electroplating layer on the inductor blank through an electroplating process;

[0010] Step 5: removing the excess electroplating material on the electroplating layer of the inductor blank by a laser marking process using a laser marking machine.

[0011] Preferably, the method for preparing the prefabricated winding comprises the following steps:

[0012] Step 1: Pressing metal powder into an electromagnetic coil under high temperature and high pressure, and then welding a first terminal and a second terminal at both ends of the electromagnetic coil through a welding sheet;

[0013] Step 2, pressing a cylindrical magnetic core by using alloy magnetic material;

[0014] Step 3, processing the magnetic core formed in step 2 into a threaded magnetic core column with a fixed pitch by a thread processing machine;

[0015] Step 4, rotating the spiral electromagnetic coil formed by bending the metal flat wire in step 1 into the threaded magnetic core column formed in step 3 to form a magnetic core body;

[0016] Step 5: implant the magnetic core body made in step 4 into a forming press mold, fill the mold with soft magnetic alloy powder, and press out a prefabricated winding with a certain interlayer spacing of the coil;

[0017] Step 6: Place the product in an annealing furnace and anneal it at a high temperature of 400°C to 1000°C for 30min to 300min under a protective atmosphere;

[0018] Step seven, taking out the annealed product and cooling it to obtain a finished product.

[0019] Preferably, the metal powder used in step 1 of preparing the prefabricated winding is carbonyl iron powder, reduced iron powder and alloy powder.

[0020] Preferably, the prefabricated top blank and the prefabricated bottom blank are made of high temperature and high pressure resistant material by injection molding or vacuum packaging.

[0021] Preferably, the preparation material of the prefabricated top blank and the prefabricated bottom blank is one of epoxy resin and polyimide.

[0022] Preferably, the prefabricated conductive wire is bent by a bending machine to form a specific shape.

[0023] Preferably, the prefabricated conductive wire is one of four materials: copper wire, aluminum wire, iron wire and tungsten wire.

[0024] Preferably, the prefabricated conductor includes a first pin and a second pin, the first pin and the second pin correspond to the first terminal and the second terminal respectively, and the first pin and the second pin are both composed of two parts: a transverse bending portion and a vertical bending portion.

[0025] Preferably, the prefabricated top blank is provided with a first upper groove adapted to the upper half of the prefabricated winding, and second upper grooves adapted to the upper half of the transverse bending parts of the first pin and the second pin are provided on both sides of the first upper groove, and the prefabricated bottom blank is provided with a first lower groove adapted to the lower half of the prefabricated winding, and second lower grooves adapted to the lower half of the transverse bending parts of the first pin and the second pin are provided on both sides of the first lower groove, and guide holes for the vertical bending parts of the first pin and the second pin to pass through are opened in the second lower groove.

[0026] Preferably, the electroplating material in step 4 is one of nickel, chromium and zinc.

[0027] The beneficial effects of the present invention are:

[0028] The present invention replaces the traditional co-fired inductor electrode bending process and the transmission pin pasting method, simplifies the preparation process of the integrated co-fired inductor and reduces the size of the inductor.

[0029] The integrated co-fired inductor element prepared by the present invention has a smooth surface, thereby improving the accuracy, reducing the contact resistance of the power module components, and at the same time improving the inductance and magnetic flux density of the product, thereby achieving the effect of reducing the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Figure 1 A flow chart of an electroplating method for an integral co-fired inductor proposed by the present invention;

[0032] Figure 2 A flow chart of the method for preparing a prefabricated winding proposed by the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the spiral electromagnetic coil proposed by the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the inductor compact after compaction proposed by the present invention;

[0035] Figure 5This is a schematic diagram of the structure of the inductor compact before compaction proposed by the present invention;

[0036] Figure 6 This is a structural schematic diagram of the inductor compact proposed by the present invention before compaction from another viewing angle;

[0037] Figure 7 This is a comparison table of inductance experiments of various embodiments of the present invention and existing power modules;

[0038] In the figure: 1, first terminal; 2, second terminal; 3, electromagnetic coil; 4, welding piece; 5, prefabricated winding; 6, prefabricated top blank; 61, first upper slot; 62, second upper slot; 7, prefabricated bottom blank; 71, first lower slot; 72, second lower slot; 73, guide hole; 8, first pin; 9, second pin. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0040] See also Figure 1 The present invention provides a technical solution: a method for electroplating an integral co-fired inductor, comprising the following steps:

[0041] Step 1: prepare a prefabricated top blank 6, a prefabricated winding 5, a prefabricated bottom blank 7 and a prefabricated wire to make an inductor pressed blank, place the prefabricated winding 5 on the prefabricated bottom blank 7 and expose it to the prefabricated bottom blank 7, place a prefabricated wire corresponding to the prefabricated winding 5 on the prefabricated bottom blank 7, apply a layer of epoxy resin adhesive on the surface of the prefabricated bottom blank 7 except the prefabricated wire, and then place the prefabricated top blank 6 and the prefabricated bottom blank 7 to press and fit, so as to form an integrated inductor pressed blank in which the prefabricated winding 5 and the prefabricated wire are tightly fitted;

[0042] Step 2, heating and pressurizing the inductor blank by a hot press;

[0043] Step 3: After cooling and bonding, a circuit layer is formed on the surface of the inductor blank by laser marking with a laser marking machine;

[0044] Step 4, plating the required electroplating layer on the inductor blank by electroplating process, wherein the electroplating material is nickel;

[0045] Step 5: Use a laser marking process of a laser marking machine to remove excess electroplating material on the electroplating layer of the inductor blank.

[0046] See also Figure 2The preparation method of the prefabricated winding 5 comprises the following steps:

[0047] Step 1: Press the metal powder into an electromagnetic coil 3 under high temperature and high pressure, and then weld the first terminal 1 and the second terminal 2 at both ends of the electromagnetic coil 3 through a welding piece 4 to make a Figure 3 The spiral electromagnetic coil 3 shown;

[0048] Step 2, pressing a cylindrical magnetic core by using alloy magnetic material;

[0049] Step 3, processing the magnetic core formed in step 2 into a threaded magnetic core column with a fixed pitch by a thread processing machine;

[0050] Step 4: Rotate and install the spiral electromagnetic coil 3 formed by bending the metal flat wire in step 1 into the threaded magnetic core column formed in step 3 to form a magnetic core body;

[0051] Step 5: implant the magnetic core body made in step 4 into a molding press mold, fill the mold with soft magnetic alloy powder, and press out a prefabricated winding 5 with a certain layer spacing of the coil;

[0052] Step 6: Place the product in an annealing furnace and anneal it at a high temperature of 400°C to 1000°C for 30min to 300min under a protective atmosphere;

[0053] Step seven, taking out the annealed product and cooling it to obtain a finished product.

[0054] The metal powders used in step 1 of preparing the prefabricated winding 5 are carbonyl iron powder, reduced iron powder and alloy powder.

[0055] The prefabricated top blank 6 and the prefabricated bottom blank 7 are made of high temperature and high pressure resistant materials by injection molding or vacuum packaging. The preparation material of the prefabricated top blank 6 and the prefabricated bottom blank 7 is one of epoxy resin or polyimide.

[0056] See also Figure 5 and Figure 6 The prefabricated conductor is bent by a bending machine to form a specific shape. The prefabricated conductor is one of four materials, namely, copper wire, aluminum wire, iron wire and tungsten wire. The prefabricated conductor includes a first pin 8 and a second pin 9. The first pin 8 and the second pin 9 correspond to the first terminal 1 and the second terminal 2 respectively. The first pin 8 and the second pin 9 are both composed of two parts: a horizontal bending part and a vertical bending part.

[0057] The prefabricated top blank 6 is provided with a first upper groove 61 which is compatible with the upper half of the prefabricated winding 5, and second upper grooves 62 which are compatible with the upper half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first upper groove 61. The prefabricated bottom blank 7 is provided with a first lower groove 71 which is compatible with the lower half of the prefabricated winding 5, and second lower grooves 72 which are compatible with the lower half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first lower groove 71, and a guide hole 73 for the vertical bending part of the first pin 8 and the second pin 9 to pass through is opened in the second lower groove 72. Embodiment 2

[0058] See also Figure 1 The present invention provides a technical solution: a method for electroplating an integral co-fired inductor, comprising the following steps:

[0059] Step 1: prepare a prefabricated top blank 6, a prefabricated winding 5, a prefabricated bottom blank 7 and a prefabricated wire to make an inductor pressed blank, place the prefabricated winding 5 on the prefabricated bottom blank 7 and expose it to the prefabricated bottom blank 7, place a prefabricated wire corresponding to the prefabricated winding 5 on the prefabricated bottom blank 7, apply a layer of epoxy resin adhesive on the surface of the prefabricated bottom blank 7 except the prefabricated wire, and then place the prefabricated top blank 6 and the prefabricated bottom blank 7 to press and fit, so as to form an integrated inductor pressed blank in which the prefabricated winding 5 and the prefabricated wire are tightly fitted;

[0060] Step 2, heating and pressurizing the inductor blank by a hot press;

[0061] Step 3: After cooling and bonding, a circuit layer is formed on the surface of the inductor blank by laser marking with a laser marking machine;

[0062] Step 4, plating the required electroplating layer on the inductor blank by electroplating process, wherein the electroplating material is chromium;

[0063] Step 5: Use a laser marking process of a laser marking machine to remove excess electroplating material on the electroplating layer of the inductor blank.

[0064] See also Figure 2 The preparation method of the prefabricated winding 5 comprises the following steps:

[0065] Step 1: Press the metal powder into an electromagnetic coil 3 under high temperature and high pressure, and then weld the first terminal 1 and the second terminal 2 at both ends of the electromagnetic coil 3 through a welding piece 4 to make a Figure 3 The spiral electromagnetic coil 3 shown;

[0066] Step 2, pressing a cylindrical magnetic core by using alloy magnetic material;

[0067] Step 3, processing the magnetic core formed in step 2 into a threaded magnetic core column with a fixed pitch by a thread processing machine;

[0068] Step 4: Rotate and install the spiral electromagnetic coil 3 formed by bending the metal flat wire in step 1 into the threaded magnetic core column formed in step 3 to form a magnetic core body;

[0069] Step 5: implant the magnetic core body made in step 4 into a molding press mold, fill the mold with soft magnetic alloy powder, and press out a prefabricated winding 5 with a certain layer spacing of the coil;

[0070] Step 6: Place the product in an annealing furnace and anneal it at a high temperature of 400°C to 1000°C for 30min to 300min under a protective atmosphere;

[0071] Step seven, taking out the annealed product and cooling it to obtain a finished product.

[0072] The metal powders used in step 1 of preparing the prefabricated winding 5 are carbonyl iron powder, reduced iron powder and alloy powder.

[0073] The prefabricated top blank 6 and the prefabricated bottom blank 7 are made of high temperature and high pressure resistant materials by injection molding or vacuum packaging. The preparation material of the prefabricated top blank 6 and the prefabricated bottom blank 7 is one of epoxy resin or polyimide.

[0074] See also Figure 5 and Figure 6 The prefabricated conductor is bent by a bending machine to form a specific shape. The prefabricated conductor is one of four materials, namely, copper wire, aluminum wire, iron wire and tungsten wire. The prefabricated conductor includes a first pin 8 and a second pin 9. The first pin 8 and the second pin 9 correspond to the first terminal 1 and the second terminal 2 respectively. The first pin 8 and the second pin 9 are both composed of two parts: a horizontal bending part and a vertical bending part.

[0075] The prefabricated top blank 6 is provided with a first upper groove 61 which is compatible with the upper half of the prefabricated winding 5, and second upper grooves 62 which are compatible with the upper half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first upper groove 61. The prefabricated bottom blank 7 is provided with a first lower groove 71 which is compatible with the lower half of the prefabricated winding 5, and second lower grooves 72 which are compatible with the lower half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first lower groove 71, and a guide hole 73 for the vertical bending part of the first pin 8 and the second pin 9 to pass through is opened in the second lower groove 72. Embodiment 3

[0076] See also Figure 1 The present invention provides a technical solution: a method for electroplating an integral co-fired inductor, comprising the following steps:

[0077] Step 1: prepare a prefabricated top blank 6, a prefabricated winding 5, a prefabricated bottom blank 7 and a prefabricated wire to make an inductor pressed blank, place the prefabricated winding 5 on the prefabricated bottom blank 7 and expose it to the prefabricated bottom blank 7, place a prefabricated wire corresponding to the prefabricated winding 5 on the prefabricated bottom blank 7, apply a layer of epoxy resin adhesive on the surface of the prefabricated bottom blank 7 except the prefabricated wire, and then place the prefabricated top blank 6 and the prefabricated bottom blank 7 to press and fit, so as to form an integrated inductor pressed blank in which the prefabricated winding 5 and the prefabricated wire are tightly fitted;

[0078] Step 2, heating and pressurizing the inductor blank by a hot press;

[0079] Step 3: After cooling and bonding, a circuit layer is formed on the surface of the inductor blank by laser marking with a laser marking machine;

[0080] Step 4, plating the required electroplating layer on the inductor blank by electroplating process, wherein the electroplating material is zinc;

[0081] Step 5: Use a laser marking process of a laser marking machine to remove excess electroplating material on the electroplating layer of the inductor blank.

[0082] See also Figure 2 The preparation method of the prefabricated winding 5 comprises the following steps:

[0083] Step 1: Press the metal powder into an electromagnetic coil 3 under high temperature and high pressure, and then weld the first terminal 1 and the second terminal 2 at both ends of the electromagnetic coil 3 through a welding piece 4 to make a Figure 3 The spiral electromagnetic coil 3 shown;

[0084] Step 2, pressing a cylindrical magnetic core by using alloy magnetic material;

[0085] Step 3, processing the magnetic core formed in step 2 into a threaded magnetic core column with a fixed pitch by a thread processing machine;

[0086] Step 4: Rotate and install the spiral electromagnetic coil 3 formed by bending the metal flat wire in step 1 into the threaded magnetic core column formed in step 3 to form a magnetic core body;

[0087] Step 5: implant the magnetic core body made in step 4 into a molding press mold, fill the mold with soft magnetic alloy powder, and press out a prefabricated winding 5 with a certain layer spacing of the coil;

[0088] Step 6: Place the product in an annealing furnace and anneal it at a high temperature of 400°C to 1000°C for 30min to 300min under a protective atmosphere;

[0089] Step seven, taking out the annealed product and cooling it to obtain a finished product.

[0090] The metal powders used in step 1 of preparing the prefabricated winding 5 are carbonyl iron powder, reduced iron powder and alloy powder.

[0091] The prefabricated top blank 6 and the prefabricated bottom blank 7 are made of high temperature and high pressure resistant materials by injection molding or vacuum packaging. The preparation material of the prefabricated top blank 6 and the prefabricated bottom blank 7 is one of epoxy resin or polyimide.

[0092] See also Figure 5 and Figure 6 The prefabricated conductor is bent by a bending machine to form a specific shape. The prefabricated conductor is one of four materials, namely, copper wire, aluminum wire, iron wire and tungsten wire. The prefabricated conductor includes a first pin 8 and a second pin 9. The first pin 8 and the second pin 9 correspond to the first terminal 1 and the second terminal 2 respectively. The first pin 8 and the second pin 9 are both composed of two parts: a horizontal bending part and a vertical bending part.

[0093] The prefabricated top blank 6 is provided with a first upper groove 61 which is compatible with the upper half of the prefabricated winding 5, and second upper grooves 62 which are compatible with the upper half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first upper groove 61. The prefabricated bottom blank 7 is provided with a first lower groove 71 which is compatible with the lower half of the prefabricated winding 5, and second lower grooves 72 which are compatible with the lower half of the transverse bending part of the first pin 8 and the second pin 9 are provided on both sides of the first lower groove 71, and a guide hole 73 for the vertical bending part of the first pin 8 and the second pin 9 to pass through is opened in the second lower groove 72.

[0094] The electromagnetic characteristics of the above embodiment and the existing power module inductor are shown in the experiment. Figure 7 As shown in the table, it can be seen from the table that the electroplating method of the integrated co-fired inductor proposed by the present invention not only simplifies the preparation process of the integrated co-fired inductor, but also can reduce the size of the inductor, and the surface of the component is flat, thereby improving the accuracy and reducing the contact resistance of the power module components, while increasing the inductance and magnetic flux density of the product, thereby achieving the effect of reducing losses.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for electroplating an integral co-fired inductor, characterized in that: The following steps are involved: Step 1, manufacturing an inductor blank by preparing a prefabricated top blank (6), a prefabricated winding (5), a prefabricated bottom blank (7) and a prefabricated conductive wire, placing the prefabricated winding (5) on the prefabricated bottom blank (7) and exposing it to the prefabricated bottom blank (7), placing the prefabricated conductive wire corresponding to the prefabricated winding (5) on the prefabricated bottom blank (7), coating a layer of epoxy resin adhesive on the surface of the prefabricated bottom blank (7) except for the prefabricated conductive wire, and then placing the prefabricated top blank (6) and the prefabricated bottom blank (7) to press and fit them, thereby forming an integrated inductor blank in which the prefabricated winding (5) and the prefabricated conductive wire are tightly fitted; Step 2, heating and pressurizing the inductor blank by a hot press; Step 3, after cooling and bonding, a circuit layer is formed on the surface of the inductor blank by laser marking with a laser marking machine; Step 4, plating the required electroplating layer on the inductor blank through an electroplating process; Step 5, removing the excess electroplating material on the electroplating layer of the inductor blank by a laser marking process of a laser marking machine; The method for preparing the prefabricated winding (5) comprises the following steps: Step 1: Pressing metal powder into an electromagnetic coil (3) under high temperature and high pressure, and then welding the first terminal (1) and the second terminal (2) at both ends of the electromagnetic coil (3) via welding sheets (4); Step 2, pressing a cylindrical magnetic core by using alloy magnetic material; Step 3, processing the magnetic core formed in step 2 into a threaded magnetic core column with a fixed pitch by a thread processing machine; Step 4, rotating the spiral electromagnetic coil (3) formed by bending the metal flat wire in step 1 into the threaded magnetic core column formed in step 3 to form a magnetic core body; Step 5, implanting the magnetic core body made in step 4 into a molding press mold, filling the mold with soft magnetic alloy powder, and pressing out a prefabricated winding (5) with a certain layer spacing of the coil; Step 6: Place the product in an annealing furnace and anneal it at a high temperature of 400°C to 1000°C for 30min to 300min under a protective atmosphere; Step 7, taking out the annealed product and cooling it to obtain a finished product; The prefabricated conductor is bent by a bending machine to form a specific shape, the prefabricated conductor comprises a first pin (8) and a second pin (9), the first pin (8) and the second pin (9) respectively correspond to the first terminal (1) and the second terminal (2), and the first pin (8) and the second pin (9) are both composed of two parts, namely a horizontal bending part and a vertical bending part; The prefabricated top blank (6) is provided with a first upper groove (61) adapted to the upper half of the prefabricated winding (5), and second upper grooves (62) adapted to the upper half of the transverse bending portion of the first pin (8) and the second pin (9) are provided on both sides of the first upper groove (61). The prefabricated bottom blank (7) is provided with a first lower groove (71) adapted to the lower half of the prefabricated winding (5), and second lower grooves (72) adapted to the lower half of the transverse bending portion of the first pin (8) and the second pin (9) are provided on both sides of the first lower groove (71), and guide holes (73) for the vertical bending portions of the first pin (8) and the second pin (9) to pass through are provided in the second lower groove (72).

2. The electroplating method of an integral co-fired inductor according to claim 1, characterized in that: The metal powders used in step 1 of preparing the prefabricated winding (5) are carbonyl iron powder, reduced iron powder and alloy powder.

3. The electroplating method of an integral co-fired inductor according to claim 1, characterized in that: The prefabricated top blank (6) and the prefabricated bottom blank (7) are made of high temperature and high pressure resistant material by injection molding or vacuum packaging.

4. The electroplating method of an integral co-fired inductor according to claim 1, characterized in that: The preparation material of the prefabricated top blank (6) and the prefabricated bottom blank (7) is one of epoxy resin and polyimide.

5. The electroplating method of an integral co-fired inductor according to claim 1, characterized in that: The prefabricated conductive wire is made of one of four materials: copper wire, aluminum wire, iron wire and tungsten wire.

6. The electroplating method of an integral co-fired inductor according to claim 1, characterized in that: In the step 4, the electroplating material is one of nickel, chromium and zinc.

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