WO2005117096A1 - 回路モジュールの製造方法、及びその方法により製造された回路モジュール - Google Patents
回路モジュールの製造方法、及びその方法により製造された回路モジュール Download PDFInfo
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- WO2005117096A1 WO2005117096A1 PCT/JP2005/008371 JP2005008371W WO2005117096A1 WO 2005117096 A1 WO2005117096 A1 WO 2005117096A1 JP 2005008371 W JP2005008371 W JP 2005008371W WO 2005117096 A1 WO2005117096 A1 WO 2005117096A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07718—Constructional details, e.g. mounting of circuits in the carrier the record carrier being manufactured in a continuous process, e.g. using endless rolls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/0775—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
- G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49855—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers for flat-cards, e.g. credit cards
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- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5389—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates the chips being integrally enclosed by the interconnect and support structures
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- H01L2224/04105—Bonding areas formed on an encapsulation of the semiconductor or solid-state body, e.g. bonding areas on chip-scale packages
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- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
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- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
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- H01L2224/24135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/24137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- H01L2224/24—Structure, shape, material or disposition of the high density interconnect connectors after the connecting process of an individual high density interconnect connector
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- H01L2224/24151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/24153—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being arranged next to each other, e.g. on a common substrate
- H01L2224/24195—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being arranged next to each other, e.g. on a common substrate the item being a discrete passive component
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Definitions
- the present invention relates to a method of manufacturing a circuit module, and a circuit module manufactured by the method.
- the present invention relates to a method of manufacturing a circuit module in which electronic components such as a semiconductor element, a resistance element, a capacitor element, and a coil element are mounted on a base material by a face-down method, and a circuit module manufactured by the method. It is.
- a through hole 56 is provided in the IC chip mounting portion A of the base material 51 in correspondence with the bump 55 of the IC chip 53 (see FIG. 7 (A)).
- a bonding agent for fixing the IC chip 53 is applied to the IC chip mounting portion A where the IC chip is to be arranged, and an adhesive layer 57 is provided (see FIG. 2B).
- the IC chip 53 is arranged on the portion A where the adhesive layer 57 is formed so that the bump 55 is located in the through hole 56, and the IC chip 53 is fixed to the base material 51 (See (C) in the figure).
- Energy F such as heat, light, electromagnetic waves such as high-frequency waves, and ultrasonic waves can be applied according to the pressure required for the fixing and the adhesive (see FIG. 3D).
- a conductive pattern 52 with the position of the through hole 56 as the connection end 58 is provided, and the bump 55 in the through hole 56 and the conductive pattern 52 are connected. (See Fig. (E)).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-231762
- a method for manufacturing a circuit module according to a first invention includes:
- the "electronic component” in this document is not particularly limited, and examples thereof include a semiconductor element, a resistance element, a capacitor element, and a coil element.
- a method for detecting the position of the electrode is not particularly limited !, but the following embodiment is exemplified.
- the position of the electronic component on the base material is detected through the base material from the other surface side, and the known information is detected.
- An aspect in which the position of the electrode with respect to the base material is detected by using position information of the electrode relative to the electronic component.
- the through-hole for exposing the electrode is provided. Therefore, unlike the conventional example, the through-hole and the It is possible to improve the reliability of connection between the electrode of the electronic component and the conductive pattern of the base material without the force that the position of the electrode is aligned or the adhesive does not protrude into the through hole. .
- the step of conducting includes closing a gap that may exist at a boundary between the electrode surface and a peripheral portion of the through hole.
- a step of forming at least a conductive portion that electrically conducts the electrode surface and the inner surface of the through hole with a conductive viscous material will be described.
- the conductive viscous material refers to a material obtained by mixing a conductive powder or particles, a binder, and a viscous medium.
- a typical example is a force having an Ag (silver) paste.
- Ag silver
- various commercially available materials referred to as conductive pastes, conductive inks, and the like are applicable.
- a method of forming the conductive portion is not particularly limited, but a method of forming the conductive viscous material by a printing method, a dispensing method, or the like is exemplified.
- it is preferable to use a thermosetting material as the conductive viscous material because the material can be quickly cured by heating and the time required for mounting can be shortened.
- the gap is not always present at the boundary, but may be formed depending on the material of the base material or the method of forming the through hole.
- this gap in order to electrically conduct from the electrode to the other surface side of the base material, for example, when an electroless plating is performed, bubbles around the plating liquid may adhere to the gap. With May be harmed. Therefore, in the step of conducting, the gap is closed with the conductive viscous material to form a conducting portion that electrically conducts at least the electrode surface and the inner surface of the through hole. Thus, electrical continuity between the electrode surface and the inner surface of the through hole can be ensured.
- an interlayer insulating layer made of an insulating material on the circuit pattern Forming an interlayer insulating layer made of an insulating material on the circuit pattern; forming a through hole exposing an interlayer conductive portion of the circuit pattern on the upper surface of the interlayer insulating layer;
- the interlayer conduction portion refers to a portion that allows the laminated circuit patterns to conduct with each other.
- a plurality of the circuit patterns can be stacked, so that complicated wiring that crosses three-dimensionally becomes possible.
- the through-hole for exposing the interlayer conductive portion is provided.
- the insulating material in which the through-hole is formed in advance is used for the insulating material.
- the through hole and the interlayer conductive portion may not be aligned with each other, or the adhesive may protrude into the through hole. The reliability of the connection between the circuit patterns stacked together can be improved.
- a circuit module manufacturing method according to the first or second aspect, further comprising: forming a circuit pattern made of a conductive material;
- an interlayer insulating layer made of an insulating material having a through hole exposing an interlayer conductive portion of the circuit pattern on the upper surface of the interlayer insulating layer, on the circuit pattern; Electrically conducting from the interlayer conduction portion to the upper surface side of the interlayer insulation layer;
- the through-hole is formed in advance in the interlayer insulating material, the step of forming the through-hole can be omitted.
- It is formed of a conductive viscous material so as to at least electrically connect the electrode surface and the inner surface of the through hole so as to close a gap that may be present at a boundary between the electrode surface and the peripheral portion of the through hole.
- a circuit module includes:
- a conducting portion formed so as to electrically conduct the electrode force to the other surface side of the base material
- a circuit module comprising:
- An interlayer insulating layer formed of an insulating material and formed on the circuit pattern; and an interlayer conductive portion of the circuit pattern exposed on the upper surface of the interlayer insulating layer.
- a circuit module according to a seventh invention includes:
- a conducting portion formed so as to electrically conduct the electrode force to the other surface side of the base material
- a circuit module comprising:
- An insulating material having a through hole for exposing an interlayer conductive portion of the circuit pattern to an upper surface of the interlayer insulating layer; an interlayer insulating layer formed on the circuit pattern; A conducting portion for electrically conducting up to the upper surface side of the interlayer insulating layer;
- circuit module manufacturing method and the circuit module manufactured by the method according to the present invention it is possible to improve the reliability of the connection between the electrode of the electronic component and the conductive pattern of the base material. ! /, Has an excellent effect.
- FIG. 1 shows a method for manufacturing a circuit module according to a first embodiment of the present invention.
- FIG. 3 is a cross-sectional view illustrating a method of mounting electronic components and a wireless tag as a circuit module manufactured by the method.
- FIG. 2 is a diagram showing the same mounting method, and is a perspective view also showing the back side force of the base material.
- FIG. 3 is an enlarged cross-sectional view showing the vicinity of an electrode of a semiconductor element as an electronic component mounted on a base material by the same mounting method.
- ⁇ 4] is a view showing a semiconductor element mounted on a base material by a mounting method according to a first modification of the present invention, (a) is a cross-sectional view, and (b) is an enlarged cross-sectional view of (a). .
- FIG. 5 is a view showing a semiconductor element mounted on a base material by a mounting method according to a second modification of the present invention, wherein (a) is a cross-sectional view and (b) is an enlarged cross-sectional view of (a). .
- FIG. 6 is a view showing a semiconductor element mounted on a base material by a mounting method according to a third modification of the present invention, wherein (a) is a cross-sectional view and (b) is an enlarged cross-sectional view of (a). .
- FIG. 7 is a diagram showing a conventional method for mounting a semiconductor element.
- FIG. 8 is a cross-sectional view showing a method of mounting an electronic component as a method of manufacturing a circuit module according to a second embodiment of the present invention, and a wireless tag as a circuit module manufactured by the method.
- FIG. 9 is a cross-sectional view showing an electronic component mounting method as a circuit module manufacturing method according to a third embodiment of the present invention, and a wireless tag as a circuit module manufactured by the method.
- FIG. 10 is a cross-sectional view illustrating a method of mounting an electronic component as a method of manufacturing a circuit module according to a fourth embodiment of the present invention, and a wireless tag as a circuit module manufactured by the method.
- FIG. 11 is a cross-sectional view showing an electronic component mounting method as a circuit module manufacturing method according to a fifth embodiment of the present invention, and a wireless tag as a circuit module manufactured by the method.
- FIG. 12 is a cross-sectional view showing a circuit module manufacturing method according to a sixth embodiment of the present invention, and a circuit module manufactured by the method.
- FIG. 13 is a cross-sectional view showing a circuit module manufactured by the same manufacturing method.
- FIGS. 1 to 6 show a mounting method of an electronic component as a method of manufacturing a circuit module according to a first embodiment of the present invention, and a wireless tag 1 as a circuit module configured by the mounting method. Is shown.
- a semiconductor element 2 is exemplified as an electronic component.
- the wireless tag 1 basically has a semiconductor element 2 connected to an antenna pattern 4 as a conductive pattern provided on a base material 3.
- the base material 3 of the present example is made of a resin having optical transparency (for example, PET (PolyEthilene Terephthalate)).
- the electrode 5 of the semiconductor element 2 of this example includes an aluminum layer 5a exposed through an opening of the protective film 2a for protecting the surface of the semiconductor element 2, a noria metal 5b formed on the aluminum layer 5a, and A thin metal film 5c formed on the barrier metal 5b (for example, a thin gold film formed by a snotter method).
- the semiconductor element 2 is mounted on one surface of the substrate 3 (hereinafter, this surface is referred to as “front surface” and the other surface is referred to as “back surface”) in a face-down manner. (See Figure 1 (a) and Figure 2 (a)).
- this mounting it is preferable that the lower end portion 2b of the semiconductor element 2 penetrates into the surface of the base material 3 to some extent as shown in FIG.
- the adhesive 6 is applied to the mounting portion of the semiconductor element 2 on the surface of the base material 3, and the mounting portion is heated and softened, and the semiconductor element 2 is crimped thereon.
- a method of thermocompression bonding directly to the base material 3 without using the adhesive 6 may be adopted. Noh.
- Examples of the method of forming the through-holes 7 include exposing the electrodes 5 by laser processing or etching from the back side of the base material 3 and washing with plasma, an organic solvent, water, or the like. .
- the cleaning includes plasma cleaning, chemical cleaning, organic solvent cleaning, and water cleaning. Which cleaning is used alone or in combination depends on the means for forming the through hole 7 (laser processing, etching, etc.). Etc.) and the material of the base material 3 and the electrode 5.
- An antenna pattern 4 is formed on the back surface of the substrate 3, and the antenna pattern 4 is connected to the electrode 5 of the semiconductor element 2 exposed in the through hole 7.
- an antenna pattern base material 9 is formed on the back surface of the base material 3 by an electric fieldless plating (see FIGS. 1C and 2C).
- the antenna pattern base material 9 and the electrode 5 are electrically connected by forming the antenna pattern base material 9 also on the inner surface of the through hole 7 and the surface of the electrode 5 exposed in the through hole 7.
- the antenna pattern 4 is formed by etching the antenna pattern base material 9.
- the semiconductor element 2 is sealed on the surface of the base material 3 with a resin 10 (see FIG. 1 (e) and FIG. 2 (e)).
- the method of mounting the semiconductor element 2 of this example can be changed, for example, as follows.
- FIG. 5 shows a method in which an adhesive 6 is applied to a mounting portion of the semiconductor element 2 on the surface of the base material 3 and the mounting portion is heated and softened, and the semiconductor element 2 is crimped thereto. The case where it was adopted is shown.
- FIG. 6 shows a case where a method of thermocompression bonding directly to the base material 3 without using the adhesive 6 is adopted by appropriately selecting the material of the base material 3.
- the electrode 5 is exposed. Since the through hole 7 is provided, unlike the conventional example, the position of the through hole 7 and the electrode 5 do not match, and the adhesive does not protrude into the through hole 7. (In the present invention, even when the surface of the electrode 5 is covered with the adhesive 6, it is removed when forming the through-hole 7.) The connection between the electrode 5 of the semiconductor element 2 and the conductive pattern of the base material 3 Reliability can be improved.
- FIG. 8 shows a mounting method of an electronic component as a method of manufacturing a circuit module according to a second embodiment of the present invention, and a wireless tag 1 as a circuit module configured by the mounting method. Is shown.
- This embodiment differs from the first embodiment mainly in the following points. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated (the same applies to other embodiments described below).
- the antenna pattern 4 is formed on the back surface of the substrate 3, and the antenna pattern 4 is connected to the electrode 5 of the semiconductor element 2 exposed in the through hole 7.
- an underlying Cu (copper) foil 21 as a conductive underlying foil is formed on the entire front and back surfaces of the base material 3 by electroless plating (see FIG. 8 (a)).
- a resist 22 is printed on the underlying Cu foil 21 of the base material 3 with a mask (see FIG. 8B).
- an electrolytic plating is applied to the underlying Cu foil 21 (see FIG. 8 (c)), and the resist 22 and the underlying Cu foil 21 thereunder are peeled off (see FIG. 8 (d)), whereby the antenna pattern 4 is formed. Is done.
- FIG. 9 shows a mounting method of an electronic component as a method of manufacturing a circuit module according to a third embodiment of the present invention, and a wireless tag 1 as a circuit module configured by the mounting method. Is shown. This embodiment differs from the first embodiment mainly in the following points.
- the semiconductor element 2 is mounted on the surface of the substrate 3 in a face-down manner on the surface of the substrate 3 (see FIG. 9A).
- the mounting method in this example, a method is adopted in which the mounting portion of the semiconductor element 2 on the surface of the base material 3 is heated and softened, and the semiconductor element 2 is crimped thereon.
- the position of the electrode 5 of the semiconductor element 2 on the substrate 3 is detected, and a through hole 7 for exposing the electrode 5 on the back surface of the substrate 3 is formed in the substrate 3 based on the position. (See Fig. 9 (b)).
- the method of detecting the position of the electrode 5 is the same as in the first embodiment.
- the through hole As a method for forming 7, a method is used in which the back surface side force of the base material 3 is also perforated by laser processing, and the electrode 5 is exposed by washing with plasma, a chemical solution, an organic solvent, water, etc. as in the first embodiment.
- a gap S may be generated at the boundary between the surface of the electrode 5 and the peripheral portion of the through hole 7 (See Fig. 9 (b)).
- the antenna pattern 4 is formed on the back surface of the substrate 3, and the antenna pattern 4 is connected to the electrode 5 of the semiconductor element 2 exposed in the through hole 7. If there is a gap S at the boundary between the surface of the electrode 5 and the peripheral edge of the through-hole 7, in order to electrically conduct from the electrode 5 to the back side of the substrate 3, for example, an electroless plating is performed. However, there may be a problem that the spillage of the plating liquid is hindered by bubbles attached to the gap S. Therefore, in this example, first, an Ag paste or an Ag nanopaste as a conductive paste is printed on the back surface of the base material 3 by a method such as a printing method or a dispensing method to form a conductive portion having the same pattern as the antenna pattern 4.
- An underlayer pattern 25 is formed (FIG. 9C).
- the base pattern 25 is also formed on the inner surface of the through-hole 7 and the surface of the electrode 5 exposed in the through-hole 7, thereby closing the gap S with the conductive paste.
- the antenna pattern 4 is formed by subjecting the base pattern 25 to electrolytic plating (see FIG. 9D).
- the wireless tag 1 as the circuit module of the present embodiment includes the base material 3, the semiconductor element 2 as an electronic component mounted on the surface of the base material 3 in a face-down manner, and the At least the surface of the electrode 5 and the through hole 7 are formed so as to close the through hole 7 formed so as to expose the electrode 5 of the semiconductor element 2 and the gap S that may be present at the boundary between the surface of the electrode 5 and the peripheral portion of the through hole 7.
- FIG. 10 shows a method of mounting an electronic component as a method of manufacturing a circuit module according to a fourth embodiment of the present invention, and a wireless method as a circuit module configured by the mounting method.
- Tag 1 is shown. This embodiment differs from the third embodiment mainly in the following points.
- the antenna pattern 4 is formed on the back surface of the substrate 3, and the antenna pattern 4 is connected to the electrode 5 of the semiconductor element 2 exposed in the through hole 7.
- a conductive portion 31 is formed by closing the inside of the through hole 7 with an Ag paste or the like as a conductive paste (see FIG. 10A).
- an underlying Cu foil 21 as a conductive underlying foil is formed on the entire front and back surfaces of the substrate 3 by electroless plating (see FIG. 10 (b)).
- a resist 22 is applied to the surface of the underlying Cu foil 21 (see FIG. 10 (c)), the resist 22 is exposed with a mask (see FIG. 10 (d)), and the resist 22 is etched (see FIG. e) to form a mask pattern 22a.
- the mask pattern 22a can also be formed by printing the resist 22 on the underlying Cu foil 21 with a mask.
- an electrolytic plating is applied to the underlying Cu foil 21 (see FIG. 10 (f)), and the mask pattern 22a and the underlying Cu foil 21 thereunder are peeled off (see FIG. 10 (g)), whereby the antenna pattern 4 is formed. Is done.
- the same effect as in the third embodiment can also be obtained by the mounting method of the semiconductor element 2 and the wireless tag 1 of the present example.
- the conductive base for forming the conductive portion 31 is used only in the through-hole 7, it is possible to reduce the amount of conductive paste which is generally expensive, thereby reducing the cost. Can be.
- FIG. 11 shows a method of mounting an electronic component as a method of manufacturing a circuit module according to a fifth embodiment of the present invention, and a circuit module configured by the mounting method. 1 shows all wireless tags 1. This embodiment differs from the third embodiment mainly in the following points.
- the antenna pattern 4 is formed on the back surface of the substrate 3, and the antenna pattern 4 is connected to the electrode 5 of the semiconductor element 2 exposed in the through hole 7.
- an antenna pattern 4 as a conductive portion is formed on the back surface of the substrate 3 by a method such as an Ag paste or the like as a conductive paste by a printing method, a dispensing method, or the like (see FIG. 11).
- the gap S is closed with the conductive paste by forming the antenna pattern 4 also on the inner surface of the through hole 7 and the surface of the electrode 5 exposed in the through hole 7.
- the same effect as in the third embodiment can also be obtained by the mounting method of the semiconductor element 2 and the wireless tag 1 of this example.
- the antenna pattern 4 is directly formed of the conductive paste, the number of steps can be significantly reduced.
- FIGS. 12 and 13 show a method of manufacturing a circuit module 70 according to a sixth embodiment of the present invention, and a circuit module 70 manufactured by the method.
- This embodiment is different from the first embodiment in that a plurality of electronic components 2a, 2b, and 2c are mounted on the surface of the base material 3 and the interlayer insulating layer made of the interlayer insulating material 71a is provided on the back surface of the base material 3 as shown below. It differs from the third embodiment mainly in that circuit patterns 4a and 4b of a multilayer structure are formed via 71.
- a method for manufacturing a circuit module according to this example will be described step by step with reference to FIGS. 12 and 13.
- a flexible sheet made of resin for example, PET
- the interlayer insulating material 71a also has a surface facing the electronic component as a “front surface” and the other surface as a “back surface”.
- the surface of the A number of electronic components 2a, 2b, 2c are mounted (see Fig. 12 (a)).
- the mounting portions of the electronic components on the surface of the base 3 are heated and softened, and each of the mounting portions is provided with each electronic component.
- the method of crimping parts is adopted.
- a conducting portion 31a for electrically conducting from the electrode 5 of the electronic components 2a, 2b, 2c exposed in the through hole 7 to the back surface of the substrate 3 is formed, and the conducting portion 31a is formed in the conducting portion 31a.
- a continuous first-layer circuit pattern 4a is formed on the back surface of the substrate 3 (see FIG. 12 (b)).
- the gap S is closed with the conductive paste by forming a conductive portion 3 la by using an Ag paste or the like as a conductive paste by a printing method, a dispensing method, or the like, and is connected to the conductive portion 31 a.
- the circuit pattern 4a is formed.
- the conduction portion 3 la ensures electrical conduction between the surface of the electrode 5 and the inner surface of the through hole 7, and ensures electrical conduction between the surface of the electrode 5 and the inner surface of the through hole 7.
- the interlayer insulating layer 71 is formed on the first-layer circuit pattern (see FIG. 12C).
- the interlayer insulating layer 71 is formed by attaching an interlayer insulating material 71a with an adhesive 74 on the first layer circuit pattern 4a.
- a conductive portion 31b for electrically connecting the interlayer conductive portion 72 of the first-layer circuit pattern 4a exposed in the through hole 73 to the back surface of the interlayer insulating material 71a is formed. Then, a second-layer circuit pattern 4b that is continuous with the conductive portion 31b is formed on the back surface of the interlayer insulating material 71a (see FIG. 12E). This can be performed in the same manner as (2) in this example. Through the above steps, the circuit module shown in FIG. 13A is manufactured.
- the step of forming the circuit pattern 4a having the conductive material strength (the above (2) in the present example) and the inter-layer insulating material 71a The step of forming the insulating layer 71 on the circuit pattern 4a (the above (3) in this example), and forming the through hole 73 exposing the interlayer conductive portion 72 of the circuit pattern 4a on the upper surface of the interlayer insulating layer 71.
- the circuit module 70 of the present example has a circuit pattern 4a having a conductive material strength, an interlayer insulating material 7la, and an interlayer insulating layer 71 formed on the circuit pattern 4a, and a circuit pattern 4a.
- a through-hole 73 formed so as to expose the interlayer conductive portion 72 of the interlayer insulating layer 71 on the upper surface of the interlayer insulating layer 71, and a conductive portion 31b electrically connecting the interlayer conductive portion 72 to the upper surface side of the interlayer insulating layer 71.
- One of the formed layers is laminated on the back surface of the base material 3, and the second-layer circuit pattern 4b is formed thereon.
- circuit module 70 of the present example can be changed, for example, as follows.
- a protective layer 75 is formed on the front surface and / or the back surface of the circuit module 70.
- the protective layer 75 is formed by, for example, attaching a protective tape or sheet with an adhesive 74.
- the same effect as in the third embodiment can be obtained by the method of manufacturing the circuit module 70 of the present example and the circuit module 70 manufactured by the method.
- the present example since a plurality of circuit patterns 4a and 4b can be stacked, complicated wiring that crosses three-dimensionally becomes possible.
- the through holes 73 that expose the interlayer conductive portions 72 are provided.
- an insulating material in which the through holes 73 are formed in advance is used for the circuit.
- the position of the through-hole 73 and the interlayer conduction portion 72 may not be aligned, or the adhesive 74 may protrude into the through-hole 73.
- the reliability of the connection between the stacked circuit patterns 4a and 4b can be improved.
- FIG. 14 shows a method of manufacturing a circuit module 80 according to a seventh embodiment of the present invention, and a circuit module 80 manufactured by the method.
- the following points mainly differ from the sixth embodiment.
- the position of the interlayer conductive portion 72 in the first-layer circuit pattern 4a is previously determined.
- the interlayer insulating layer 71 in which the through hole 73 has been formed is formed on the first-layer circuit pattern 4a (see FIG. 14A).
- the interlayer insulating layer 71 is formed by attaching an interlayer insulating material 71b with an adhesive 74 on the first-layer circuit pattern 4a.
- the electrical connection from the interlayer conductive portion 72 in the first-layer circuit pattern 4a exposed in the through hole 73 to the back surface of the interlayer insulating material 71b is performed.
- a conductive portion 3 lb for electrical conduction is formed, and a second-layer circuit pattern 4b continuous with the conductive portion 3 lb is formed on the back surface of the interlayer insulating material 7 lb (see FIG. 14B).
- the circuit module 80 is manufactured.
- the method of manufacturing the circuit module 80 of this example can be appropriately changed, for example, similarly to the modified examples (a) and (b) described in the sixth embodiment.
- the method of manufacturing the circuit module 80 of the present example includes the steps of forming the circuit pattern 4a that also has the conductive material strength, and placing the interlayer conductive portion 72 of the circuit pattern 4a on the upper surface of the interlayer insulating layer 71.
- One layer formed by the step of forming the conductive portion 31b is laminated on the back surface of the substrate 3, and the second-layer circuit pattern 4b is formed thereon.
- the circuit module 80 of the present example has a circuit pattern 4a having a conductive material strength, and an interlayer having a through hole 73 for exposing the interlayer conductive portion 72 of the circuit pattern 4a to the upper surface of the interlayer insulating layer 71.
- a layer formed of an insulating material 71b and formed by an interlayer insulating layer 71 formed on the circuit pattern 4a and a conductive portion 31b for electrically connecting the interlayer conductive portion 72 to the upper surface of the interlayer insulating layer 71 is formed.
- One is laminated on the back surface of the base material 3, on which the second-layer circuit pattern 4b is formed.
- a plurality of circuit patterns 4a and 4b are stacked as in the sixth embodiment. Therefore, complicated wiring that crosses three-dimensionally becomes possible. Further, in this example, since the through holes 73 are formed in the interlayer insulating material 71b in advance, the step of forming the through holes 73 can be omitted.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
Claims
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JP2004-160546 | 2004-05-31 | ||
JP2004160546A JP2005311267A (ja) | 2004-02-02 | 2004-05-31 | 半導体素子の実装方法及び実装構造 |
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WO2005117096A1 true WO2005117096A1 (ja) | 2005-12-08 |
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PCT/JP2005/008371 WO2005117096A1 (ja) | 2004-05-31 | 2005-05-06 | 回路モジュールの製造方法、及びその方法により製造された回路モジュール |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006092754A2 (en) * | 2005-03-02 | 2006-09-08 | Koninklijke Philips Electronics N.V. | A method of manufacturing a semiconductor packages and packages made |
US8129220B2 (en) | 2009-08-24 | 2012-03-06 | Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
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JPH01257339A (ja) * | 1988-04-06 | 1989-10-13 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
JPH088293A (ja) * | 1994-06-16 | 1996-01-12 | Casio Comput Co Ltd | 電子部品の接続構造およびその接続方法 |
JP2000208556A (ja) * | 1999-01-11 | 2000-07-28 | Nec Corp | 半導体装置及び半導体装置の製造方法 |
JP2002231855A (ja) * | 2001-02-05 | 2002-08-16 | Dainippon Printing Co Ltd | Cspタイプの半導体装置及びその作製方法 |
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JPH01257339A (ja) * | 1988-04-06 | 1989-10-13 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
JPH088293A (ja) * | 1994-06-16 | 1996-01-12 | Casio Comput Co Ltd | 電子部品の接続構造およびその接続方法 |
JP2000208556A (ja) * | 1999-01-11 | 2000-07-28 | Nec Corp | 半導体装置及び半導体装置の製造方法 |
JP2002231855A (ja) * | 2001-02-05 | 2002-08-16 | Dainippon Printing Co Ltd | Cspタイプの半導体装置及びその作製方法 |
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WO2006092754A2 (en) * | 2005-03-02 | 2006-09-08 | Koninklijke Philips Electronics N.V. | A method of manufacturing a semiconductor packages and packages made |
WO2006092754A3 (en) * | 2005-03-02 | 2007-01-18 | Koninkl Philips Electronics Nv | A method of manufacturing a semiconductor packages and packages made |
US8129220B2 (en) | 2009-08-24 | 2012-03-06 | Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
US8833418B2 (en) | 2009-08-24 | 2014-09-16 | The Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
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