WO2016013277A1 - 電子部品の製造方法 - Google Patents
電子部品の製造方法 Download PDFInfo
- Publication number
- WO2016013277A1 WO2016013277A1 PCT/JP2015/063806 JP2015063806W WO2016013277A1 WO 2016013277 A1 WO2016013277 A1 WO 2016013277A1 JP 2015063806 W JP2015063806 W JP 2015063806W WO 2016013277 A1 WO2016013277 A1 WO 2016013277A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- filling space
- substrate
- electronic component
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/145—Arrangements wherein electric components are disposed between and simultaneously connected to two planar printed circuit boards, e.g. Cordwood modules
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/144—Stacked arrangements of planar printed circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC]
- H05K1/185—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] associated with components encapsulated in the insulating substrate of the PCBs; associated with components incorporated in internal layers of multilayer circuit boards
- H05K1/186—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] associated with components encapsulated in the insulating substrate of the PCBs; associated with components incorporated in internal layers of multilayer circuit boards manufactured by mounting on or connecting to patterned circuits before or during embedding
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0097—Processing two or more printed circuits simultaneously, e.g. made from a common substrate, or temporarily stacked circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistors by means of a mounting structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/368—Assembling printed circuits with other printed circuits parallel to each other
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/04—Assemblies of printed circuits
- H05K2201/042—Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/0909—Preformed cutting or breaking line
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1316—Moulded encapsulation of mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1327—Moulding over PCB locally or completely
Definitions
- the present invention relates to a method for manufacturing an electronic component.
- Patent Document 1 Conventionally, as a method for manufacturing an electronic component, for example, there is one described in Patent Document 1.
- the electronic component described in Patent Document 1 is an electronic component having a QFN (Quad Flat No-leads Package) type terminal arrangement, and leads (terminals) are exposed on each of the four sides on the back surface of the resin package.
- QFN Quad Flat No-leads Package
- an electronic component is obtained by applying a resin mold to a lead frame to form a portion corresponding to a resin package, and then cutting and separating the resin package portion.
- the width of the lead exposed on the side surface of the resin package is equal to the thickness of the lead frame and is relatively wide. For this reason, when the electronic component is mounted on the circuit board by reflow, there is a possibility that a mounting defect such as a bridge or a chip standing may occur. This point becomes more prominent as electronic components are miniaturized and the distance between the leads becomes shorter. In recent years, high density of electronic components has been demanded. However, in the electronic component described in Patent Document 1, it is difficult to increase the density because the substrate portion is a single layer. Moreover, since it manufactures by cutting out a resin package part from a lead frame, it is difficult to obtain a some electronic component efficiently.
- One aspect of the present invention has been made in view of the above circumstances, and an object thereof is to provide a method of manufacturing an electronic component capable of suppressing the occurrence of mounting defects while increasing the density and improving the manufacturing efficiency. To do.
- a multilayer body including a first circuit board and a second circuit board on which circuit components are mounted is cut along a predetermined cut line to obtain a plurality of electronic components.
- An electronic component manufacturing method comprising: a laminating step of laminating a second circuit board via a spacer on a first circuit board provided with a filled via around a circuit component mounting region; The laminated body is cut by a filling process for filling the filling space formed between the circuit board and the second circuit board with an insulating resin, and a cut line for cutting the filled via, and the filled via is exposed on the cut surface. And a cutting step of obtaining a terminal portion of the electronic component.
- an electronic component in which the first circuit board and the second circuit board on which the circuit components are mounted can be manufactured. Therefore, the mounting area can be reduced to reduce the size and increase the density. Can be achieved. Moreover, since a plurality of electronic components are obtained from one laminate by cutting the laminate with a predetermined cut line, it is possible to improve the manufacturing efficiency. Further, since the terminal portion is formed by dividing the filled via, the width of the terminal portion exposed on the side surface of the electronic component can be made narrower than when the lead frame is cut and formed. For this reason, even if the electronic component is downsized, it is possible to suppress the occurrence of mounting defects.
- the filling space formed between the first circuit board and the second circuit board may include a first filling space formed in the mounting area.
- the circuit component mounted on the first circuit board can be protected from heat by the resin filled in the first filling space. This makes it possible to obtain an electronic component that can be reflow mounted.
- the filling space formed between the first circuit board and the second circuit board may further include a second filling space that is formed outside the mounting area and communicates with the first filling space.
- a second filling space that is formed outside the mounting area and communicates with the first filling space.
- a third circuit board is laminated on the second circuit board via a spacer, and in the filling process, a filling space formed between the second circuit board and the third circuit board by the spacer is formed.
- the third circuit board can be used as the upper lid.
- the filling space formed between the first circuit board and the second circuit board includes the first filling space formed in the mounting area, the outside of the mounting area, and the first filling space.
- a filling space formed between the second circuit board and the third circuit board includes a third filling space formed outside the mounting area;
- the second circuit board may have a communication hole that communicates the second filling space and the third filling space.
- an electronic component manufacturing method capable of suppressing the occurrence of mounting defects while achieving higher density and improved manufacturing efficiency.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- A is the perspective view which looked at the base substrate from the surface side
- (b) is the perspective view which looked at the base substrate from the back surface side
- (c) is sectional drawing which shows the base substrate after mounting a circuit component.
- A) is the perspective view which looked at the laminated substrate from the surface side
- (b) is the perspective view which looked at the laminated substrate from the back side
- (c) is sectional drawing which shows the laminated substrate after mounting a circuit component.
- (A) is the perspective view which looked at the upper lid board
- (b) is the perspective view which looked at the upper lid board
- (c) is sectional drawing which shows an upper lid board
- (A) is sectional drawing which shows a lamination process
- (b) is sectional drawing which shows a filling process
- (c) is sectional drawing which shows a cutting process. It is a figure which shows the cut line in a cutting process, and is the figure which looked at the laminated body from the back surface side.
- FIG. 1 is a perspective view of an electronic component according to an embodiment of the present invention as viewed from the back side
- FIG. 2 is a cross-sectional view taken along line II-II in FIG.
- the electronic component 1 of this embodiment is, for example, a surface-mount type electronic component, and is mounted on a circuit board (not shown) to function as, for example, a high-voltage power supply.
- the electronic component 1 has a substantially rectangular parallelepiped shape, for example, and the bottom surface of the electronic component 1 has a square shape with a side length of 10 mm, for example.
- the electronic component 1 includes a base substrate 20 (first circuit substrate) and a laminated substrate 40 (second circuit substrate) on which circuit components are mounted, and an upper lid substrate 60 (third circuit substrate) that functions as an upper lid. Has been configured. These substrates are laminated in order of the base substrate 20, the laminated substrate 40, and the upper lid substrate 60 from the bottom surface side of the electronic component 1, and between the substrates are filled with insulating resins 71 and 81 as will be described later. ing.
- the main surfaces of the base substrate 20, the laminated substrate 40, and the upper lid substrate 60 have the same planar shape.
- any circuit substrate can be adopted, for example, a glass epoxy substrate can be adopted.
- the base substrate 20 is a square plate-like circuit substrate, and a plurality of circuit components 5 (see FIG. 3C described later) are mounted on the surface of the base substrate 20 (the surface on the laminated substrate 40 side). .
- the plurality of circuit components 5 are arbitrary circuit elements necessary for realizing the function of the electronic component 1 and may be different from each other, for example, semiconductor elements.
- the base substrate 20 has a plurality of terminal portions 21 exposed on each of the four sides of the back surface. For example, in this embodiment, seven terminal portions 21 are arranged in a line at predetermined intervals on each side.
- the terminal portion 21 is made of a conductive metal, for example, copper.
- the thickness of the base substrate 20 is preferably as thin as possible in order to reduce the thickness of the electronic component 1. Thinning the base substrate 20 is preferable from the viewpoint of relaxing stress acting on the base substrate 20 and facilitating a cutting step (dicing) described later.
- the terminal portion 21 includes a main body portion 23 extending from the front surface to the back surface of the base substrate 20, and a land portion formed integrally with the main body portion 23 and extending along the back surface of the base substrate 20. 25.
- the width of the terminal portion 21 is, for example, 0.1 mm.
- the left and right side surfaces (outer surfaces) of the main body 23 are located on the same plane as the left and right side surfaces (outer surfaces) of the electronic component 1 (the laminated substrate 40 and the upper lid substrate 60), and are flush with each other.
- the main body 23 is electrically connected to a circuit pattern 27 (see FIG. 3A described later) provided on the surface of the base substrate 20.
- the land portion 25 has, for example, a rectangular shape extending from the edge of the base substrate 20 toward the center, and serves as a terminal when the electronic component 1 is mounted on the circuit board. Note that the shape of the bottom surface of the electronic component 1, the pitch interval of the terminal portions 21, and the shape of the land portions 25 may be arbitrarily changed as long as they conform to the QFN standard, for example.
- the multilayer substrate 40 includes a square plate-shaped multilayer substrate body 41 having a plurality of circuit components 7 (see FIG. 4C described later) mounted on the surface (surface on the upper lid substrate 60 side). And a step portion 43 (spacer) that is formed integrally with the multilayer substrate body 41 and protrudes toward the back surface side of the multilayer substrate body 41.
- the plurality of circuit components 7 are arbitrary circuit elements necessary for realizing the function of the electronic component 1 and may be different from each other, for example, semiconductor devices.
- the step portion 43 is formed of, for example, a prepreg, and is provided around the circuit component 7 as described later with reference to FIGS. 4 (a) and 4 (b).
- the laminated substrate 40 is laminated on the base substrate 20 via the step portion 43. By stacking the laminated substrate 40 on the base substrate 20 via the stepped portion 43, a lower filling space 70 is formed between the base substrate 20 and the laminated substrate 40.
- the lower filling space 70 is filled with an insulating resin 71.
- the resin 71 covers the circuit component 5 mounted on the base substrate 20.
- the resin 71 it is preferable to use a resin having physical properties close to those of the resin constituting the base substrate 20, the laminated substrate 40, and the upper lid substrate 60.
- an epoxy resin is used. Is preferred.
- the laminated substrate 40 is formed with a plurality of filled vias 45 penetrating the laminated substrate body 41 and the stepped portion 43.
- the filled via 45 is a via in which a through hole is filled with conductive metal plating, and here, a through hole having a substantially circular cross section is filled with copper plating.
- the filled via 45 is electrically connected to a circuit pattern 27 formed on the surface of the base substrate 20 and a circuit pattern 47 (see FIG. 4A described later) formed on the surface of the multilayer substrate 40.
- the filled via 45 is provided side by side around the circuit component 7 mounted on the surface of the multilayer substrate 40.
- the upper lid substrate 60 includes a normal plate-shaped upper lid substrate body 61, a step portion 63 (spacer) that is formed integrally with the upper lid substrate body 61, and protrudes from the back side of the upper lid substrate body 61. ,have. No circuit pattern is formed on the surface of the upper lid substrate 60 (upper lid substrate body 61).
- the step part 63 is formed of, for example, a prepreg.
- the upper lid substrate 60 is laminated on the laminated substrate 40 via the stepped portion 63.
- An upper filling space 80 is formed between the laminated substrate 40 and the upper lid substrate 60 by laminating the upper lid substrate 60 on the laminated substrate 40 via the stepped portion 63.
- the upper filling space 80 communicates with the lower filling space 70 as described later, and is filled with the resin 81 in the same manner as the lower filling space 70.
- the resin 81 covers the circuit component 7 mounted on the multilayer substrate 40. As will be described later, the resin 81 is integrally formed with the resin 71 and is formed of the same resin material as the resin 71.
- the laminate 10 obtained by laminating the base substrate 20, the laminate substrate 40, and the upper lid substrate 60 is cut along a predetermined cut line L, A plurality of electronic components 1 (eight in this embodiment as an example) are obtained from one laminate 10.
- the base substrate preparation process (FIG. 3) which prepares the base substrate 20, the laminated substrate preparation process (FIG. 4) which prepares the laminated substrate 40, and the upper cover substrate preparation process (FIG. 5) which prepares the upper cover substrate 60 are demonstrated. .
- the base substrate preparation process will be described with reference to FIG. 3A.
- eight rectangular mounting areas A are set on the base substrate 20.
- the mounting areas A have the same shape, and are arranged in a lattice pattern at regular intervals in 3 rows and 3 columns except for the central portion B of the same shape.
- On the surface of each mounting area A a circuit pattern 27 on which the circuit component 5 is mounted is formed.
- filled vias 29 are formed around each mounting area A as shown in FIGS.
- the filled via 29 is a via in which a through hole is filled with conductive metal plating.
- a through hole having a substantially circular cross section is filled with copper plating.
- the filled via 29 is a portion that is divided in a cutting step to be described later and becomes the terminal portion 21 described above.
- the filled via 29 when the filled via 29 is formed, the through hole is filled with copper plating, and the portion to be the land portion 25 described above is simultaneously formed with copper plating. That is, the filled via 29 includes a first portion 29A in which a through hole is filled with copper plating, and a second portion that is formed integrally with the first portion 29A and has a rectangular shape that extends toward the center of the mounting region A. 29B.
- the diameter of the first portion 29A is, for example, 0.1 mm.
- a through hole having a substantially circular cross section is formed so as to be aligned on a cut line L (see FIG. 7) that becomes a cutting line in a cutting process described later, and the through hole is filled with copper plating to fill the filled via. 29 is formed. Specifically, as described above, seven filled vias 29 are formed in a line at predetermined intervals along each of the four sides of the mounting area A. The formed filled via 29 is electrically connected to the circuit pattern 27.
- the circuit component 5 is mounted on the circuit pattern 27 in each mounting area A.
- a solder paste may be formed on the circuit pattern 27 and mounted by reflow.
- a resin layer junction coating resin
- the resin layer is formed of, for example, silicone rubber.
- the resin layer becomes a stress relaxation layer that relaxes the stress acting on the circuit component 5 after the lower filling space 70 and the upper filling space 80 are filled with the resins 71 and 81 in the filling step.
- voids are removed by, for example, vacuum defoaming or the like so that no bubbles remain in the resin layer.
- the multilayer substrate main body 41 has the same planar shape as the base substrate 20, and the multilayer substrate main body 41 has, for example, the same arrangement as the base substrate 20 and eight rectangular shapes as shown in FIG. A shape mounting area A is set. On the surface of each mounting area A, a circuit pattern 47 on which the circuit component 7 is mounted is formed.
- a stepped portion 43 is formed on the back surface of the multilayer substrate body 41 so as to surround each mounting region A.
- the first stepped portion 43A, the second stepped portion 43B, the third stepped portion 43C, and the fourth stepped portion 43D are provided.
- the step portions 43A to 43D have an L shape and a shape obtained by inverting the L shape vertically and horizontally, or both, and form a gap 46 between the adjacent step portions 43A to 43D.
- the gap 46 functions as an injection port for injecting the resins 71 and 81 or a passage port through which the resins 71 and 81 pass in a filling step described later.
- the communication hole 49 is a circular hole, for example, and is formed outside the mounting area A.
- the communication hole 49 has, for example, a communication hole 49A having the smallest diameter, a communication hole 49B having a diameter larger than that of the communication hole 49A, and 49C having a diameter larger than that of the communication hole 49B.
- the communication hole 49A is disposed between the gaps 46 in the adjacent mounting areas A.
- the communication holes 49 ⁇ / b> B are disposed between the mounting areas A and the central part B at the four corners of the multilayer substrate body 41.
- the communication hole 49C is disposed in the central portion B, for example.
- a plurality of filled vias 45 penetrating the multilayer substrate body 41 and the stepped portion 43 are formed. Specifically, for example, seven filled vias 45 are formed in a row at predetermined intervals along each of the four sides of the mounting area A.
- the circuit component 7 is mounted on the circuit pattern 47 in each mounting area A.
- a solder paste may be formed on the circuit pattern 47 and mounted by reflow.
- a resin layer is formed on the mounting portion.
- the resin layer is formed of, for example, silicone rubber.
- the upper lid substrate preparation process will be described with reference to FIG.
- the upper lid substrate body 61 has the same planar shape as the base substrate 20 and the laminated substrate 40.
- a stepped portion 63 is formed on the back surface of the upper lid substrate body 61 so as to surround the area corresponding to the mounting area A.
- a first stepped portion 63A, a second stepped portion 63B, a third stepped portion 63C, and a fourth stepped portion 63D are provided at the four corners of the mounting area A.
- a first stepped portion 63A, a second stepped portion 63B, a third stepped portion 63C, and a fourth stepped portion 63D are provided at the four corners of the mounting area A. Deploy.
- the step portions 63A to 63D have an L shape and a shape obtained by inverting the L shape vertically and horizontally, or both, and a gap 66 is formed between the adjacent step portions 63A to 63D.
- the gap 66 is formed narrower than the gap 46 described above.
- the gap 66 functions as an injection port for injecting the resins 71 and 81 or a passage port through which the resins 71 and 81 pass in a filling step described later.
- the stacked substrate 40 is stacked on the base substrate 20 via the stepped portion 43 as shown in FIG.
- a solder paste is formed on the circuit pattern 27 of the base substrate 20 and the circuit pattern 27 of the base substrate 20 and the filled via 45 of the multilayer substrate 40 are connected by reflow.
- the upper lid substrate 60 is laminated on the laminated substrate 40 via the stepped portion 63.
- a solder paste is formed on the circuit pattern 47 of the multilayer substrate 40, and the circuit pattern 47 of the multilayer substrate 40 and the pattern for fixing the multilayer formed on the lower surface of the upper lid substrate 60 are connected by reflow.
- positioned up and down is stacked, and the laminated body 10 is formed.
- a lower filling space 70 is formed between the base substrate 20 and the laminated substrate 40, and an upper filling space 80 is formed between the laminated substrate 40 and the upper lid substrate 60.
- the lower filling space 70 has a first filling space 70A formed in the mounting area A and a second filling space 70B formed outside the mounting area A.
- the first filling space 70A and the second filling space 70B are communicated with each other through the gap 46 described above. Further, the first filling space 70 ⁇ / b> A and the second filling space 70 ⁇ / b> B are communicated with the outside of the stacked body 10 through the gap 46.
- the upper filling space 80 has a third filling space 80C formed outside the mounting area A and a fourth filling space 80D formed inside the mounting area A.
- the third filling space 80C and the fourth filling space 80D communicate with each other through the gap 66 described above.
- the third filling space 80 ⁇ / b> C and the fourth filling space 80 ⁇ / b> D communicate with the outside of the stacked body 10 through the gap 66.
- the third filling space 80C is communicated with the second filling space 70B through the communication holes 49 (communication holes 49A to 49C).
- the lower filling space 70 and the upper filling space 80 are filled with resins 71 and 81.
- This resin filling is performed using, for example, a vacuum filling device.
- the resins 71 and 81 are laminated bodies from the first filling space 70A (gap 46), the second filling space 70B, the third filling space 80C (gap 66), and the fourth filling space 80D. 10 is filled.
- the resins 71 and 81 injected into the laminate 10 pass through the gaps 46 and 66 in the laminate 10 and the communication holes 49A to 49C and reach the entire lower filling space 70 and upper filling space 80. .
- the lower filling space 70 and the upper filling space 80 are filled with the integrally formed resins 71 and 81.
- a communication hole 49A is provided between the gaps 46, a communication hole 49B having a diameter larger than that of the communication hole 49A is provided between the mounting area A at the four corners and the central part B, and the central part B is provided in the central part B. Since the communication hole 49C having a diameter larger than that of the communication hole 49B is provided, the resins 71 and 81 can easily spread over the lower filling space 70 and the upper filling space 80. As a result, it is possible to prevent voids (bubbles) from remaining in the resin 71 and 81 filled and solidified in the lower filling space 70 and the upper filling space 80, and the resin generated by heat generated during mounting by reflow of the electronic component 1. It becomes possible to suppress that 71,81 breaks.
- the multilayer body 10 is cut along a predetermined cut line L, and a plurality of electronic components 1 (eight in this embodiment) are formed from one multilayer body 10.
- the cut line L is a position where the filled via 29 of the base substrate 20 is divided.
- the cut line L is a straight line that passes through the center point of the first portion 29A of the filled via 29, and the filled via 29 is divided so that the first portion 29A is divided in half.
- the above-described terminal portion 21 can be formed by exposing the filled via 29 on the cut surface.
- the laminate 10 is cut by, for example, dicing using a blade.
- a plurality of electronic components 1 can be obtained from one laminated body 10 by cutting out products separated from the laminated body 10 by the cutting process.
- eight electronic components 1 are obtained from one laminated body 10 has been described.
- the number of electronic components 1 obtained from one laminated body 10 is not limited. It is possible to obtain a larger electronic component 1 by increasing the size.
- an inspection such as a conduction state may be performed before cutting the laminated body 10 in the cutting step. In this case, since a plurality of electronic components 1 cut out from the laminated body 10 can be collectively inspected, manufacturing efficiency can be improved. Note that the inspection may be performed after cutting.
- the electronic component 1 in which the base substrate 20 and the multilayer substrate 40 on which the circuit components 5 and 7 are mounted can be manufactured. High density can be achieved. Further, by cutting the laminated body 10 along a predetermined cut line L, a plurality of electronic components 1 are obtained from one laminated body 10, so that it is possible to improve manufacturing efficiency (because batch production is possible). Become).
- the terminal portion 21 is formed by dividing the filled via 29, the width of the terminal portion 21 exposed on the side surface of the electronic component 1 can be made narrower than when the lead frame is cut and formed.
- the terminal width is usually about 0.3 mm.
- the first portion 29A of the filled via 29 can have a diameter of about 0.1 mm.
- the terminal width is about 0.1 mm. Become. For this reason, even when the electronic component 1 is downsized, it is possible to suppress the occurrence of mounting defects.
- the manufacturing method of the said electronic component it becomes possible to obtain the high-density electronic component 1 provided with the bottom face shape and terminal arrangement of a QFN standard.
- the circuit component 5 mounted on the base substrate 20 can be protected from heat by the resin 71 filled in the first filling space 70A.
- the circuit component 7 mounted on the multilayer substrate 40 can be protected from heat by the resin 81 filled in the fourth filling space 80D.
- the electronic component 1 is formed with a terminal arrangement according to the standard and can be mounted by reflow mounting, so that mounting by an automatic machine is possible.
- the resin can be filled not only from the first filling space 70A but also from the second filling space 70B, it is possible to easily spread the resin throughout the filling space. . Further, according to the method for manufacturing an electronic component, since the resin can be filled from the third filling space 80C and the fourth filling space 80D, the resin can be easily distributed throughout the filling space. In addition, since the second filling space 70B and the third filling space 80C are communicated with each other, it becomes possible to further easily spread the resin throughout the filling space.
- the third circuit board is the upper cover board 60 that functions as the upper cover, but it may be a circuit board on which circuit components are mounted.
- the number of substrates to be stacked is not limited, and a circuit board on which circuit components are mounted may be further stacked, such as a fourth circuit board, a fifth circuit board,.
- the uppermost circuit board may be used as the upper lid substrate as in this embodiment, or the upper lid substrate may be omitted when the upper lid is formed of a filling resin.
- the land portion 25 has been described as having a shape extending from the edge of the base substrate 20 toward the center.
- the land portion 25 may have any shape, for example, PGA (Pin Grid Array) terminals may be projected.
- PGA Peripheral Component Interconnect
- the filled via 29 having a shape corresponding to the terminal shape may be formed in the base substrate preparation step.
- the manufacturing process described in the above embodiment is an example, and the order of the processes may be changed as appropriate.
- the order of performing the base substrate preparation step, the laminated substrate preparation step, and the upper lid substrate preparation step is not limited, and may be performed simultaneously.
- the formation of the filled via 29 and the mounting of the circuit component 5 may be performed first or simultaneously.
- the order of forming the stepped portion 43, forming the communication hole 49, forming the filled via 45, and mounting the circuit component 7 is not limited, and may be performed simultaneously.
- a part of the manufacturing process described in the above embodiment may be omitted.
- the base substrate preparation process it is only necessary to obtain the base substrate 20 on which the filled via 29 is formed and the circuit component 5 is mounted, and the processed base substrate 20 in which at least a part of the process is performed elsewhere. May be used.
- the multilayer substrate preparation process it is only necessary to obtain the multilayer substrate 40 in which the step portion 43, the communication hole 49, and the filled via 45 are formed and the circuit component 7 is mounted. You may use the laminated substrate 40 after the process implemented by.
- the upper lid substrate preparation process it is only necessary to obtain the upper lid substrate 60 in which the stepped portion 63 is formed, and the processed upper lid substrate 60 in which at least a part of the process is performed elsewhere may be used.
- the spacer may be separated from the laminated substrate 40.
- a laminated substrate body 41 is laminated on the base substrate 20 via the spacer by inserting a spacer between the laminated substrate 40 and the base substrate 20 during lamination. The same applies to the upper lid substrate 60.
- the communication holes 49A to 49C having different diameters are formed as the communication holes of the multilayer substrate 40 .
- the position and shape of the communication holes are not limited to the above, and for example, the communication holes 49A and 49B It is good also as the same diameter.
- the circuit component 7 may be mounted on the central portion B by omitting the communication hole 49C. That is, the central portion B may be the mounting area A.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structure Of Printed Boards (AREA)
Abstract
Description
Claims (5)
- 回路部品が実装された第1の回路基板及び第2の回路基板を含む積層体を所定のカットラインで切断して複数の電子部品を得る電子部品の製造方法であって、
前記回路部品の実装領域の周囲にフィルドビアが設けられた前記第1の回路基板に、スペーサを介して前記第2の回路基板を積層する積層工程と、
前記スペーサによって前記第1の回路基板と前記第2の回路基板との間に形成される充填空間に絶縁性を有する樹脂を充填する充填工程と、
前記フィルドビアが分断されるカットラインで前記積層体を切断し、切断面に前記フィルドビアを露出させて前記電子部品の端子部を得る切断工程と、を備えた電子部品の製造方法。 - 前記第1の回路基板と前記第2の回路基板との間に形成される前記充填空間は、前記実装領域内に形成される第1の充填空間を含む、請求項1に記載の電子部品の製造方法。
- 前記第1の回路基板と前記第2の回路基板との間に形成される前記充填空間は、前記実装領域外に形成されると共に前記第1の充填空間に連通される第2の充填空間を更に含む、請求項2に記載の電子部品の製造方法。
- 前記積層工程において、前記第2の回路基板にスペーサを介して第3の回路基板を積層し、
前記充填工程において、前記スペーサによって前記第2の回路基板と前記第3の回路基板との間に形成される充填空間に絶縁性を有する樹脂を充填する、請求項1~3のいずれか1項に記載の電子部品の製造方法。 - 前記第1の回路基板と前記第2の回路基板との間に形成される前記充填空間は、前記実装領域内に形成される第1の充填空間と、前記実装領域外に形成されると共に前記第1の充填空間に連通される第2の充填空間と、を含み、
前記第2の回路基板と前記第3の回路基板との間に形成される前記充填空間は、前記実装領域外に形成される第3の充填空間を含み、
前記第2の回路基板は、前記第2の充填空間と前記第3の充填空間とを連通する連通孔を有する、請求項4に記載の電子部品の製造方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/328,144 US10321567B2 (en) | 2014-07-24 | 2015-05-13 | Method for producing electronic components |
| DE112015003410.2T DE112015003410T5 (de) | 2014-07-24 | 2015-05-13 | Verfahren zur Herstellung elektronischer Bauteile |
| KR1020167031586A KR102270440B1 (ko) | 2014-07-24 | 2015-05-13 | 전자 부품의 제조 방법 |
| CN201580040268.0A CN106537587B (zh) | 2014-07-24 | 2015-05-13 | 电子部件的制造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-150942 | 2014-07-24 | ||
| JP2014150942A JP5869631B2 (ja) | 2014-07-24 | 2014-07-24 | 電子部品の製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016013277A1 true WO2016013277A1 (ja) | 2016-01-28 |
Family
ID=55162816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/063806 Ceased WO2016013277A1 (ja) | 2014-07-24 | 2015-05-13 | 電子部品の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10321567B2 (ja) |
| JP (1) | JP5869631B2 (ja) |
| KR (1) | KR102270440B1 (ja) |
| CN (1) | CN106537587B (ja) |
| DE (1) | DE112015003410T5 (ja) |
| WO (1) | WO2016013277A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111955059A (zh) * | 2018-04-05 | 2020-11-17 | Lg电子株式会社 | Pcb层压结构和包括该pcb层压结构的移动终端 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015008503A1 (de) * | 2015-07-03 | 2017-01-05 | TE Connectivity Sensors Germany GmbH | Elektrisches Bauteil und Herstellungsverfahren zum Herstellen eines solchen elektrischen Bauteils |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004221372A (ja) * | 2003-01-16 | 2004-08-05 | Seiko Epson Corp | 半導体装置、半導体モジュール、電子機器、半導体装置の製造方法および半導体モジュールの製造方法 |
| JP2007067246A (ja) * | 2005-08-31 | 2007-03-15 | Kyocera Corp | 配線基板およびその製造方法、ならびに電子装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411155C (zh) * | 2004-01-27 | 2008-08-13 | 株式会社村田制作所 | 层叠型电子元器件及其制造方法 |
| WO2006035528A1 (ja) | 2004-09-29 | 2006-04-06 | Murata Manufacturing Co., Ltd. | スタックモジュール及びその製造方法 |
| CN100485910C (zh) * | 2004-12-02 | 2009-05-06 | 株式会社村田制作所 | 电子元器件及其制造方法 |
| JP2006261387A (ja) | 2005-03-17 | 2006-09-28 | Matsushita Electric Ind Co Ltd | モジュールとその製造方法 |
| JP2008311267A (ja) * | 2007-06-12 | 2008-12-25 | Taiyo Yuden Co Ltd | 回路モジュールの製造方法及び回路モジュール |
| JP4215814B2 (ja) | 2008-03-17 | 2009-01-28 | 三洋電機株式会社 | 半導体装置の製造方法 |
| JP2009289936A (ja) | 2008-05-29 | 2009-12-10 | Panasonic Corp | 電子部品の製造方法と熱プレス装置 |
| US7745244B2 (en) * | 2008-06-23 | 2010-06-29 | Fairchild Semiconductor Corporation | Pin substrate and package |
| US10283492B2 (en) * | 2015-06-23 | 2019-05-07 | Invensas Corporation | Laminated interposers and packages with embedded trace interconnects |
-
2014
- 2014-07-24 JP JP2014150942A patent/JP5869631B2/ja active Active
-
2015
- 2015-05-13 US US15/328,144 patent/US10321567B2/en active Active
- 2015-05-13 KR KR1020167031586A patent/KR102270440B1/ko not_active Expired - Fee Related
- 2015-05-13 DE DE112015003410.2T patent/DE112015003410T5/de not_active Withdrawn
- 2015-05-13 WO PCT/JP2015/063806 patent/WO2016013277A1/ja not_active Ceased
- 2015-05-13 CN CN201580040268.0A patent/CN106537587B/zh active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004221372A (ja) * | 2003-01-16 | 2004-08-05 | Seiko Epson Corp | 半導体装置、半導体モジュール、電子機器、半導体装置の製造方法および半導体モジュールの製造方法 |
| JP2007067246A (ja) * | 2005-08-31 | 2007-03-15 | Kyocera Corp | 配線基板およびその製造方法、ならびに電子装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111955059A (zh) * | 2018-04-05 | 2020-11-17 | Lg电子株式会社 | Pcb层压结构和包括该pcb层压结构的移动终端 |
| CN111955059B (zh) * | 2018-04-05 | 2023-06-06 | Lg电子株式会社 | Pcb层压结构和具有该pcb层压结构的移动终端 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015003410T5 (de) | 2017-06-01 |
| JP2016025319A (ja) | 2016-02-08 |
| US20170223829A1 (en) | 2017-08-03 |
| JP5869631B2 (ja) | 2016-02-24 |
| CN106537587A (zh) | 2017-03-22 |
| KR102270440B1 (ko) | 2021-06-28 |
| CN106537587B (zh) | 2019-01-15 |
| US10321567B2 (en) | 2019-06-11 |
| KR20170034787A (ko) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI699159B (zh) | 模製電路模組及其製造方法 | |
| JP6427817B2 (ja) | 印刷回路基板及びその製造方法 | |
| JP6038517B2 (ja) | 配線基板及びその製造方法 | |
| US9418931B2 (en) | Package structure and manufacturing method thereof | |
| JP6249548B2 (ja) | 側壁導体を有する積層マイクロ電子パッケージおよびその製造方法 | |
| TWI591758B (zh) | 用於只包含已驗證的電路板的三維電子模組之集體製造的方法 | |
| US9113574B2 (en) | Wiring board with built-in electronic component and method for manufacturing the same | |
| CN110140433B (zh) | 电子模块以及电子模块的制造方法 | |
| TW201712766A (zh) | 封裝載板及其製作方法 | |
| US20170127517A1 (en) | Printed wiring board and method for manufacturing the same | |
| US10034383B2 (en) | Manufacturing method of part-mounting package | |
| CN105590914B (zh) | 电子元件封装结构及制作方法 | |
| JP6148764B2 (ja) | 配線基板及びその製造方法 | |
| KR20170014958A (ko) | 반도체 패키지 및 반도체 패키지의 제조방법 | |
| JP2021530098A (ja) | 半導体チップ積層配置、およびそのような半導体チップ積層配置を製造するための半導体チップ | |
| US9793241B2 (en) | Printed wiring board | |
| TWI538578B (zh) | 銅箔層壓板及其製造方法 | |
| JP5869631B2 (ja) | 電子部品の製造方法 | |
| CN104254190B (zh) | 电路板的制作方法 | |
| US10643933B2 (en) | Semiconductor package substrate and manufacturing method therefor | |
| US20160295692A1 (en) | Printed wiring board and method for manufacturing the same | |
| KR101083537B1 (ko) | 부품실장형 인쇄회로기판 제조방법 | |
| JP2011151104A (ja) | 半導体装置の製造方法及び半導体装置の中間構造体 | |
| CN105657983A (zh) | 线路板的制作方法 | |
| JP2014103383A (ja) | 印刷回路基板及びその製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15824644 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20167031586 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15328144 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 112015003410 Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 15824644 Country of ref document: EP Kind code of ref document: A1 |