WO2011121779A1 - マルチチップモジュール、プリント配線基板ユニット、マルチチップモジュールの製造方法およびプリント配線基板ユニットの製造方法 - Google Patents
マルチチップモジュール、プリント配線基板ユニット、マルチチップモジュールの製造方法およびプリント配線基板ユニットの製造方法 Download PDFInfo
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- WO2011121779A1 WO2011121779A1 PCT/JP2010/055947 JP2010055947W WO2011121779A1 WO 2011121779 A1 WO2011121779 A1 WO 2011121779A1 JP 2010055947 W JP2010055947 W JP 2010055947W WO 2011121779 A1 WO2011121779 A1 WO 2011121779A1
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- WIPO (PCT)
- Prior art keywords
- package substrate
- arithmetic element
- arithmetic
- cpu
- multichip module
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- H10W40/611—
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- 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
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
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- 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
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/021—Components thermally connected to metal substrates or heat-sinks by insert mounting
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- H10W40/10—
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- H10W70/68—
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- H10W90/00—
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- 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
- H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
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- 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
- H05K2201/09054—Raised area or protrusion of metal substrate
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- 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
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
- H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
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- H10W40/231—
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- H10W70/63—
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- H10W72/07254—
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- H10W72/247—
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- H10W72/877—
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- H10W72/942—
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- H10W72/944—
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- H10W74/15—
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- H10W90/288—
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- H10W90/722—
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- H10W90/724—
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- H10W90/734—
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- H10W90/736—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
Definitions
- the present invention relates to a multichip module, a printed wiring board unit, a manufacturing method of a multichip module, and a manufacturing method of a printed wiring board unit.
- FIG. 14 is a diagram showing an example of a multichip module having a package substrate on which components are three-dimensionally mounted.
- a CPU 2 bonded by flip lip bonding is mounted on a package substrate 1 having a core layer.
- the BGA 5 is mounted on the package substrate 1 on the side opposite to the CPU 2, in other words, on the bottom surface of the package.
- the CPU 2 is mounted with the stacked memory 3 bonded to the CPU 2 on the opposite side to the package substrate 1, in other words, on the back surface of the CPU 2 with the through electrodes 4. That is, the CPU 2 and the stacked memory 3 are connected via the package substrate 1 connected to the electrode that penetrates the CPU 2.
- Such a multi-chip module mounted three-dimensionally is useful when a large number of connection terminals are required, such as joining a large CPU such as a multi-core and a high-density large-capacity memory.
- a large number of connection terminals such as joining a large CPU such as a multi-core and a high-density large-capacity memory.
- FIG. 14 when the through electrode 4 is provided in the CPU 2 and the stacked memory 3 is mounted on the back surface, the back surface of the CPU 2 is covered with the stacked memory 3. Heat needs to be released and cooling efficiency is poor.
- FIG. 15 is a diagram showing an example of a multichip module with improved cooling efficiency.
- the CPU 2 and the stacked memory 3 are joined by the through electrode 4 so as to face each other with the package substrate 1 having the core layer interposed therebetween.
- the external terminal 6 on the package surface is connected to the CPU 2 via a wire 7.
- the multichip module shown in FIG. 15 is a diagram showing an example of a multichip module with improved cooling efficiency.
- the CPU 2 and the stacked memory 3 are joined by the through electrode 4 so as to face each other with the package substrate 1 having the core layer interposed therebetween.
- the external terminal 6 on the package surface is connected to the CPU 2 via a wire 7.
- the multichip module shown in FIG. 15 has better cooling efficiency than FIG.
- the multi-chip module according to the prior art shown in FIG. 15 has a problem that it is difficult to maintain flatness because it is necessary to use a thin high-density substrate as a package substrate.
- the multichip module shown in FIG. 15 requires a high-density package substrate on which the through electrodes 4 can be manufactured at a narrow pitch so that the distance between the CPU 2 and the stacked memory 3 is not increased.
- a high-density package substrate has a core layer. Therefore, it is not easy to install the through electrodes 4 that need to penetrate the core layer at a narrow pitch with respect to the high-density package substrate having the core layer. Therefore, in order to form the multichip module shown in FIG. 15, a thin high-density package substrate having no core is required.
- FIG. 15 is mounted using a thin high-density package substrate that does not have a core layer, the substrate is thin and easily affected by external pressure, and the substrate is deformed. Flatness cannot be maintained. That is, the multichip module as shown in FIG. 15 has poor mountability and cannot be said to be effective.
- the multichip module shown in FIG. 14 can use a thick package substrate as compared with FIG. 15, it is easy to maintain the flatness of the substrate, but the cooling efficiency is poor as described above. That is, since the multichip module shown in FIG. 14 uses a thick substrate having a core, it is easy to maintain the flatness of the substrate, but the cooling efficiency is poor, and the multichip module shown in FIG. 15 has good cooling efficiency. The flatness of things cannot be maintained.
- the present invention has been made in view of the above, and is capable of maintaining the flatness of the substrate and has a good cooling efficiency, a multichip module, a printed wiring board unit, a method of manufacturing a multichip module, and a print It aims at providing the manufacturing method of a wiring board unit.
- the present invention provides a semiconductor device having an arithmetic element that is a semiconductor element that executes arithmetic processing, and a data storage device that is connected to face the arithmetic element.
- a memory element that is an element, a package board that has the arithmetic element mounted thereon, a surface on which the arithmetic element is mounted, an external terminal connected to another component, and a surface of the package board that has the external terminal Reinforcing parts arranged on the opposite surface so as to cover from the outer peripheral portion of the arithmetic element to a predetermined position on the central portion side.
- the multichip module, the printed wiring board unit, the manufacturing method of the multichip module, and the manufacturing method of the printed wiring board unit according to the present invention can maintain the flatness of the board and have an effect of good cooling efficiency. Play.
- FIG. 1 is a cross-sectional view of a multichip module according to a first embodiment when viewed from the side.
- FIG. 2 is a cross-sectional view of the multichip module according to the first embodiment as viewed from above.
- FIG. 3 is a cross-sectional view of the multichip module according to the first embodiment when viewed from the bottom.
- FIG. 4 is a cross-sectional view of a multichip module in which a CPU and a stacked memory are directly connected to face each other as viewed from the side.
- FIG. 5A is a cross-sectional view of a multichip module being manufactured as viewed from the side.
- FIG. 5B is a cross-sectional view of the multi-chip module being manufactured as viewed from the side.
- FIG. 5C is a cross-sectional view of the multichip module being manufactured as viewed from the side.
- FIG. 5D is a cross-sectional view of the multichip module being manufactured as viewed from the side.
- FIG. 5E is a cross-sectional view of the multichip module being manufactured as viewed from the side.
- FIG. 5F is a cross-sectional view of the multi-chip module being manufactured as viewed from the side.
- FIG. 6 is a diagram illustrating an example of the cooling structure of the printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 7 is a diagram illustrating an example of the cooling structure of the printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 8 is a diagram illustrating an example of a cooling structure of a printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 9 is a diagram illustrating an example of the cooling structure of the printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 10 is a diagram illustrating an example of the cooling structure of the printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 11 is a diagram showing a configuration of a multichip module used in the experiment.
- FIG. 12 is a diagram illustrating an example of an experimental result of the degree of warping of the package substrate.
- FIG. 13 is a cross-sectional view of a multichip module in which a stiffener is mounted only on the central portion of the CPU as viewed from the side.
- FIG. 14 is a diagram showing an example of a multichip module having a package substrate on which components are three-dimensionally mounted.
- FIG. 15 is a diagram illustrating an example of a multichip module with improved cooling efficiency.
- (Side view) 1 is a cross-sectional view of a multichip module according to a first embodiment when viewed from the side.
- the multichip module shown in FIG. 1 includes a package substrate 10, a CPU 11, a stacked memory 12, a through electrode 13, an external terminal 15, and a stiffener 20.
- the package substrate 10 is a thin high-density substrate that does not have a core, and includes a CPU 11 that is an arithmetic element, and has external terminals 15 that are connected to other components on the surface on which the CPU 11 is mounted.
- the package substrate 10 is electrically connected to the CPU 11 and has the external terminals 15 on the surface to which the CPU 11 is connected.
- the package substrate 10 has a wire 16 for connecting the CPU 11 and the external terminal 15 therein.
- the CPU 11 is a semiconductor element that executes arithmetic processing.
- the CPU 11 is electrically connected to the stacked memory 12 via a through electrode 13 that penetrates the package substrate 10 so as to sandwich the package substrate 10 near the center.
- the CPU 11 is connected to the surface on which the package substrate 10 has the external terminals 15.
- An underfill agent 30 that is a sealing resin is placed between the CPU 11 and the package substrate 10.
- the CPU 11 is connected to an external terminal 15 included in the package substrate 10 by a wire 16.
- the stacked memory 12 is a semiconductor element that stores data and is connected to the central portion of the CPU 11 so as to face the CPU 11.
- the stacked memory 12 sandwiches the package substrate 10 with the CPU 11 and is electrically connected to the CPU 11 through a through electrode 13 that penetrates the package substrate 10. That is, the stacked memory 12 faces the CPU 11 at the center of the CPU 11 on the surface opposite to the surface on which the package substrate 10 has the external terminals 15, in other words, on the surface opposite to the surface on which the CPU 11 is mounted. And are electrically connected.
- the through electrode 13 is one of the mounting technologies for a semiconductor that is an electronic component, and is an electrode that vertically penetrates the inside of the package substrate 10.
- the through electrode 13 connects the upper and lower chips and elements, which are conventionally performed by wire bonding.
- the through electrodes 13 are installed on the package substrate 10 at a narrow pitch, and penetrate the package substrate 10 to electrically connect the CPU 11 and the stacked memory 12.
- the external terminal 15 is a terminal that electrically connects the CPU 11 and other electronic components, and is, for example, a solder ball, a lead wire, or an electrode pad.
- the external terminals 15 are formed by being embedded in the surface of the package substrate 10 where the CPU 11 is installed.
- the stiffener 20 prevents the warpage of stainless steel or copper which is arranged on the surface opposite to the surface having the external terminals 15 in the package substrate 10 so as to cover from the outer peripheral portion of the CPU 11 to a predetermined position on the central portion side. Reinforcing parts to be The stiffener 20 is bonded to the surface of the package substrate 10 where the external terminals 15 are not present, that is, the surface to which the stacked memory 12 is connected, using a heat-resistant epoxy resin adhesive or the like. The stiffener 20 is arranged to cover the surface from the end (edge) of the package substrate 10 to the vicinity of the stacked memory 12.
- FIG. 2 is a cross-sectional view of the multichip module according to the first embodiment as viewed from above.
- FIG. 2 illustrates the case where there are four stacked memories 12, but the present invention is not limited to this.
- FIG. 3 is a cross-sectional view of the multichip module according to the first embodiment when viewed from the bottom.
- the stiffener 20 extends from all the top, bottom, left, and right ends of the package substrate 10 to a predetermined position in the central portion where the CPU 11 is mounted. Mounted to cover. A stacked memory 12 is mounted at the center of the CPU 11. 3 illustrates the case where there are four stacked memories 12 as in FIG. 2, the present invention is not limited to this.
- the multichip module formed in this way has good cooling efficiency. Further, since the stiffener 20 is installed on the bottom surface of the package substrate 10, even when a thin high-density package substrate having no core is used, the substrate can be prevented from being deformed by external pressure. Therefore, the multichip module formed in this way can maintain flatness.
- a short distance connection between the CPU 11 and the stacked memory 12, cooling from the back of the CPU 11, and a thin wiring board can be packaged with less warpage and less stress applied to the CPU 11, and external forces such as tests can be performed.
- the handling that adds is also possible.
- the CPU 11 and the stacked memory 12 are connected by the through electrode 13 that penetrates the package substrate 10 .
- the present application is not limited to this.
- the CPU 11 and the stacked memory 12 may be directly electrically connected without sandwiching the package substrate 10.
- FIG. 4 is a cross-sectional view of a multichip module in which a CPU and a stacked memory are directly connected to face each other as viewed from the side.
- the multi-chip module shown in FIG. 4 includes the package substrate 10, the CPU 11, the stacked memory 12, the external terminal 15, and the stiffener 20 as in the first embodiment.
- the package substrate 10 has the CPU 11 mounted thereon, and has external terminals 15 connected to other components on the surface on which the CPU 11 is mounted.
- the stiffener 20 is also arranged on the surface opposite to the surface on which the package substrate 10 has the external terminals 15 so as to cover from the outer peripheral portion of the CPU 11 to a predetermined position on the central portion side. .
- the package substrate 10 has a position where the CPU 11 and the stacked memory 12 are connected, in other words, the central portion of the CPU 11 is hollowed out, and a space for mounting the stacked memory 12 is secured.
- the difference from the first embodiment is that the package substrate 10 is not provided between the CPU 11 and the stacked memory 12. For this reason, the CPU 11 and the stacked memory 12 are electrically directly connected via the connection terminal or the like without using the through electrode 13.
- the CPU 11 and the stacked memory 12 can be connected with the shortest distance. Even when the CPU 11 and the stacked memory 12 are connected at the shortest distance, it is not necessary to cover any surface of the CPU 11 with the stacked memory 12, so that the cooling efficiency is good.
- a thin high-density package substrate having no core can be used, and flatness can be maintained.
- a wiring board that does not require a through electrode can be selected, and the cost can be reduced.
- FIGS. 5A to 5F are cross-sectional views of the multichip module being manufactured as viewed from the side.
- the manufacturing apparatus uses a solder or the like on the surface of the thin high-density package substrate 10 in which the through-electrodes 13 are concentratedly arranged in a part on the side where the external terminals 15 are provided. Join. At this time, the CPU 11 and the external terminal 15 are connected by the wire 16 inside the package substrate 10.
- the manufacturing apparatus throws an underfill agent 30 into a joint portion between the CPU 11 and the package substrate 10 on which the CPU 11 is mounted. As a result, the bonding between the package substrate 10 and the CPU 11 is strengthened and sealed.
- the manufacturing apparatus covers the surface of the package substrate 10 on which the CPU 11 is mounted on the surface opposite to the surface having the external terminals 15 from the outer peripheral portion of the CPU 11 to a predetermined position on the central portion side.
- the stiffener 20 is mounted on.
- the manufacturing apparatus mounts the stiffener 20 so as to cover the surface from the end of the package substrate 10 to the vicinity of the stacked memory 12.
- the manufacturing apparatus adheres the surface of the package substrate 10 and the stiffener 20 with a heat-resistant epoxy resin adhesive or the like.
- the manufacturing apparatus joins the stacked memory 12 using solder or the like so that the package substrate 10 on which the stiffener 20 is mounted is sandwiched between the CPU 11 and faces the CPU 11.
- the manufacturing apparatus mounts the stacked memory 12 so as to be connected to each of the through electrodes 13 to which the CPU 11 is connected. That is, the manufacturing apparatus is mounted such that the CPU 11 and the stacked memory 12 are connected to both ends of the through electrode 13 that penetrates the package substrate 10.
- the manufacturing apparatus mounts a predetermined BGA 14 on the external terminal 15 in the package substrate 10 on which the CPU 11, the stiffener 20, and the stacked memory 12 are mounted. Thereafter, as shown in FIG. 5F, the manufacturing apparatus connects the BGA 14 mounted on the package substrate 10 and the mother board 50.
- the multichip module described in the first embodiment can be manufactured, and a printed wiring board unit having the multichip module can be manufactured.
- FIGS. 6 to 10 are diagrams showing examples of the cooling structure of the printed wiring board unit having the multichip module described in the first embodiment.
- FIG. 6 illustrates a cooling structure of the printed wiring board unit shown in FIG. 5F. Since the printed wiring board unit 200 shown in FIG. 6 is the same as the printed wiring board unit generated by FIGS. 5A to 5F, detailed description thereof is omitted here.
- FIG. 6 illustrates a structure in which a heat sink is mounted on the printed wiring board unit 200 and is cooled by radiating heat through the heat sink.
- the mother board 50 and the heat sink 70 of the printed wiring board unit 200 are bonded with a heat-resistant epoxy resin adhesive 80 or the like.
- a high thermal conductivity sheet (TIM) 60 is mounted between the CPU 11 of the printed wiring board unit 200 and the heat sink 70. As a result, the heat generated from the CPU 11 reaches the heat sink 70 via the TIM 60 and is radiated through the heat sink 70. Therefore, efficient cooling can be implemented.
- TIM high thermal conductivity sheet
- the printed wiring board unit 200 shown in FIG. 7 has the same configuration as that of FIG. 6 such as the TIM 60 and the heat sink 70, but FIG. 6 is different from the mother board 50 and the heat sink 70 of the printed wiring board unit 200. Connection method is different.
- the mother board 50 and the heat sink 70 of the printed wiring board unit 200 are bonded with the epoxy resin adhesive 80 or the like, but in FIG. As a result, there is no gap between the printed wiring board unit 200 and the heat sink 70, and more efficient cooling can be performed.
- a joining tool such as a screw may be used.
- FIG. 8 is a diagram in which the printed wiring board unit 200 and the heat sink 71 are connected by screws 90, as in FIG.
- the difference from FIG. 7 is that the heat sink 71 has a heat pipe therein.
- the heat sink 71 encloses a volatile working liquid such as alternative chlorofluorocarbon in a heat pipe.
- a volatile working liquid such as alternative chlorofluorocarbon in a heat pipe.
- the heat sink 71 has is not limited to the heat pipe, and may be a microchannel, a heat exchanger, or the like.
- FIG. 9 shows an example in which the heat sink 71 similar to that in FIG. 8 is joined to the printed wiring board unit 200.
- FIG. 8 is different from FIG. 8 in that the heat sink 72 is also mounted at the place where the stiffener 20 is mounted in FIG.
- the heat sink 72 that is mounted instead of the stiffener 20 functions as a reinforcing component that prevents warping as in the case of the stiffener 20, and also functions as a radiator that dissipates heat from the package substrate 10.
- FIG. 9 since they are joined by a spring load, they are pressed into contact with the mother board 50 and the connector instead of the BGA 14 connected to the external terminal 15 of the package substrate 10.
- 9 may have the stiffener 20 similarly to FIG. 8 and the like, and in that case, the heat sink 72 of FIG. 9 may be mounted so as to cover the stiffener 20.
- FIGS. 6 to 9 are examples in the case where a heat sink is generated in accordance with the shape of the printed wiring board unit 200.
- a cooling structure capable of performing efficient cooling in addition to the heat sink will be described.
- the heat sink 75 can be in contact with the mother board 50, but cannot be in contact with the CPU 11.
- the CPU 11 and the heat sink 75 are connected via the heat spreader 65.
- the TIM 60 is provided between the CPU 11 and the heat spreader 65 and the TIM 60 is provided between the heat sink 75 and the heat spreader 65.
- FIG. 11 is a diagram showing a configuration of a multichip module used in the experiment. As shown in FIG. 11, here, as an example, the description will be made assuming that the outer shape of the package substrate is 40 mm, the CPU size is 20 mm, and the stiffener non-arrangement region is Lmm. The thickness of the stiffener is 1 mm.
- FIG. 12 is a diagram illustrating an example of an experimental result of the degree of warping of the package substrate.
- the maximum principal stress when the multichip module of FIG. 11 is mounted as an LSI is the left vertical axis
- the stiffener non-arranged area is 40 mm.
- the package substrate is warped by 0.5 mm.
- the stiffener non-arranged area exceeds 20 mm, the LSI maximum principal stress rapidly increases and the warpage of the package substrate also increases. That is, when the stiffener is mounted only on the outer side of the CPU (on the end side of the package substrate), it is difficult to prevent the warpage of the package substrate.
- the stiffener non-arranged area is smaller than 20 mm, that is, when the stiffener is mounted from the outer peripheral portion to the central portion of the CPU, it can be seen that warpage of the package substrate can be prevented.
- the stiffener of the multichip module disclosed in the present application is not necessarily mounted as in the first and second embodiments.
- a stiffener may be mounted only on the central side of the CPU. That is, the stiffener is not mounted from the outer peripheral side of the CPU to the end of the package substrate.
- the stiffener is mounted in this manner, the degree of warpage can be prevented is small because the strength of the package substrate is weaker than in the first and second embodiments. In other words, the first and second embodiments can be firmly warped.
- FIG. 13 is a cross-sectional view of a multichip module in which a stiffener is mounted only on the central portion of the CPU as viewed from the side.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
図1は、実施例1に係るマルチチップモジュールを側方から見た断面図である。図1に示すマルチチップモジュールは、パッケージ基板10とCPU11と積層メモリ12と貫通電極13と外部端子15とスティフナ20とを有して形成される。
次に、図2を用いて、図1に示したマルチチップモジュールを上から見た図、言い換えると、CPU11が実装される側から見た図を説明する。図2は、実施例1に係るマルチチップモジュールを上方から見た断面図である。
次に、図3を用いて、図1に示したマルチチップモジュールを下から見た図、言い換えると、積層メモリ12が実装される側から見た図を説明する。図3は、実施例1に係るマルチチップモジュールを底方から見た断面図である。
実施例1によれば、CPU11の背面を積層メモリ12で覆う必要がないので、CPU11の熱が積層メモリ12に影響を与えることも少なく、積層メモリ12の熱がCPU11に与える影響も少ない。したがって、このように形成されたマルチチップモジュールは、冷却効率がよい。また、パッケージ基板10の底面にはスティフナ20が設置されるので、コアを有さない薄型の高密度なパッケージ基板を用いた場合でも、外部からの圧力によって基板が変形することを防止できる。したがって、このように形成されたマルチチップモジュールは、平坦度を維持することが可能である。
本願の開示するマルチチップモジュールのスティフナは、必ずしも実施例1や2のように実装される必要はない。例えば、図13に示すように、CPUの中心側のみにスティフナを実装してもよい。つまり、CPUの外周側からパッケージ基板の端まではスティフナは実装されない。このようにスティフナを実装した場合、実施例1や2に比べて、パッケージ基板の強度が弱いために反りを防止できる度合いを小さい。言い換えると、実施例1や2の方が反り強固に防止できる。しかし、図13のようにスティフナを実装した場合でも、従来に比べれば、十分に反りを防止できるとともに冷却効率もよい。なお、図13は、CPUの中心部分のみにスティフナを実装したマルチチップモジュールを側方から見た断面図である。
上記実施例では、演算素子と記憶素子とを対向して接続する例について説明したが、これに限定されるものではない。開示の技術は、目的を達成するため、LSI(Large Scale Integration)、インターポーザ、マザーボード、半導体素子一般、パッケージ基板一般、中継基板一般、回路基板一般に広く適用可能である。
11 CPU
12 積層メモリ
13 貫通電極
14 BGA
15 外部端子
16 ワイヤ
20 スティフナ
30 アンダーフィル剤
50 マザーボード
60 TIM
70、71、72、75 ヒートシンク
80 エポキシ樹脂系接着剤
90 ビス
100 バネ
200 プリント配線基板ユニット
Claims (7)
- 演算処理を実行する半導体素子である演算素子と、
前記演算素子に対向して接続される、データを記憶保持する半導体素子である記憶素子と、
前記演算素子を搭載し、前記演算素子が搭載される面に、他の部品と接続する外部端子を有するパッケージ基板と、
前記パッケージ基板における前記外部端子を有する面とは反対側の面に、前記演算素子の外周部から中心部側の所定位置まで網羅するように配置された補強部品と
を有することを特徴とするマルチチップモジュール。 - 前記記憶素子は、前記演算素子との間で前記パッケージ基板を挟み、前記パッケージ基板を貫通する貫通電極を介して前記演算素子と接続されることを特徴とする請求項1に記載のマルチチップモジュール。
- 前記記憶素子は、前記演算素子との間で前記パッケージ基板を挟まずに、前記演算素子と直接接続されることを特徴とする請求項1に記載のマルチチップモジュール。
- 前記補強部品は、前記演算素子の中心部の所定位置から前記パッケージ基板が前記外部端子を有する面とは反対側の面全てを網羅するように配置されたことを特徴とする請求項1に記載のマルチチップモジュール。
- 演算処理を実行する半導体素子である演算素子と、
前記演算素子に対向して接続される、データを記憶保持する半導体素子である記憶素子と、
前記演算素子を搭載し、前記演算素子が搭載される面に、他の部品と接続する外部端子を有するパッケージ基板と、
前記パッケージ基板が前記外部端子を有する面とは反対側の面に、前記演算素子の外周部から中心部側の所定位置まで網羅するように配置された補強部品と、
前記パッケージ基板が有する外部端子と接続される電子回路基板と、
前記電子回路基板が前記パッケージ基板と接続する面とは反対側の面と前記演算素子とに接合される放熱部品と
を有することを特徴とするプリント配線基板ユニット。 - マルチチップモジュールを製造する製造装置が、
他の部品と接続する外部端子を有するとともに、一部分に貫通電極が集中配置されたパッケージ基板が外部端子を有する面の前記貫通電極と接続されるように、演算処理を実行する半導体素子である演算素子を接合するステップと、
前記演算素子と前記パッケージ基板との接合部分に封止剤を投入するステップと、
前記演算素子が接合された面とは反対側の面に、前記パッケージ基板に接合された演算素子の外周部から中心部側の所定位置まで網羅するように補強部品を接合するステップと、
前記演算素子が接合されたパッケージ基板を挟むように前記演算素子と対向し、前記パッケージ基板の補強部品が接合された面の前記貫通電極と接続されるように、データを記憶保持する半導体素子である記憶素子を接合するステップと、
を含んだことを特徴とするマルチチップモジュールの製造方法。 - プリント配線基板ユニットを製造する製造装置が、
他の部品と接続する外部端子を有するとともに、一部分に貫通電極が集中配置されたパッケージ基板が外部端子を有する面の前記貫通電極と接続されるように、演算処理を実行する半導体素子である演算素子を接合するステップと、
前記演算素子と前記パッケージ基板との接合部分に封止剤を投入するステップと、
前記演算素子が接合された面とは反対側の面に、前記パッケージ基板に接合された演算素子の外周部から中心部側の所定位置まで網羅するように補強部品を接合するステップと、
前記演算素子が接合されたパッケージ基板を挟むように前記演算素子と対向し、前記パッケージ基板の補強部品が接合された面の前記貫通電極と接続されるように、データを記憶保持する半導体素子である記憶素子を接合するステップと、
前記演算素子と記憶素子と補強部品とが接合されたパッケージ基板の外部端子と電子回路基板とを接合するステップと、
前記電子回路基板と前記演算素子とに接するように放熱部品を接合するステップと
を含んだことを特徴とするプリント配線基板ユニットの製造方法。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10848956.8A EP2555238A4 (en) | 2010-03-31 | 2010-03-31 | MULTICHIP MODULE, CONDUCTOR PLATE, METHOD FOR PRODUCING THE MULTICHIP MODULE AND METHOD FOR PRODUCING A CONDUCTOR PLATE |
| JP2012507996A JPWO2011121779A1 (ja) | 2010-03-31 | 2010-03-31 | マルチチップモジュール、プリント配線基板ユニット、マルチチップモジュールの製造方法およびプリント配線基板ユニットの製造方法 |
| PCT/JP2010/055947 WO2011121779A1 (ja) | 2010-03-31 | 2010-03-31 | マルチチップモジュール、プリント配線基板ユニット、マルチチップモジュールの製造方法およびプリント配線基板ユニットの製造方法 |
| KR1020127025285A KR20120132530A (ko) | 2010-03-31 | 2010-03-31 | 멀티칩 모듈, 프린트 배선 기판 유닛, 멀티칩 모듈의 제조 방법 및 프린트 배선 기판 유닛의 제조 방법 |
| US13/629,740 US20130021769A1 (en) | 2010-03-31 | 2012-09-28 | Multichip module, printed wiring board, method for manufacturing multichip module, and method for manufacturing printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/055947 WO2011121779A1 (ja) | 2010-03-31 | 2010-03-31 | マルチチップモジュール、プリント配線基板ユニット、マルチチップモジュールの製造方法およびプリント配線基板ユニットの製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/629,740 Continuation US20130021769A1 (en) | 2010-03-31 | 2012-09-28 | Multichip module, printed wiring board, method for manufacturing multichip module, and method for manufacturing printed wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011121779A1 true WO2011121779A1 (ja) | 2011-10-06 |
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Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130021769A1 (ja) |
| EP (1) | EP2555238A4 (ja) |
| JP (1) | JPWO2011121779A1 (ja) |
| KR (1) | KR20120132530A (ja) |
| WO (1) | WO2011121779A1 (ja) |
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| WO2014017119A1 (en) * | 2012-07-24 | 2014-01-30 | Kabushiki Kaisha Toshiba | Circuit board, electronic device, and method of manufacturing circuit board |
| WO2016203927A1 (ja) * | 2015-06-16 | 2016-12-22 | ソニー株式会社 | 複合型半導体装置およびその製造方法 |
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| DE102013203932A1 (de) | 2013-03-07 | 2014-09-11 | Continental Automotive Gmbh | Elektronische, optoelektronische oder elektrische Anordnung |
| US10881014B2 (en) * | 2015-09-29 | 2020-12-29 | Hitachi Automotive Systems, Ltd. | Electronic control device, and manufacturing method for vehicle-mounted electronic control device |
| WO2017094670A1 (ja) * | 2015-12-03 | 2017-06-08 | 三菱電機株式会社 | 半導体装置 |
| US10121766B2 (en) * | 2016-06-30 | 2018-11-06 | Micron Technology, Inc. | Package-on-package semiconductor device assemblies including one or more windows and related methods and packages |
| US11037855B2 (en) * | 2016-12-30 | 2021-06-15 | Intel IP Corporation | Contoured-on-heat-sink, wrapped printed wiring boards for system-in-package apparatus |
| EP3633720A1 (en) * | 2018-10-05 | 2020-04-08 | Aros Electronics AB | Surface mounted heat buffer |
| US11538735B2 (en) | 2018-12-26 | 2022-12-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of forming integrated circuit packages with mechanical braces |
| DE102019121149A1 (de) | 2018-12-26 | 2020-07-02 | Taiwan Semiconductor Manufacturing Co., Ltd. | Integriertes schaltungs-package und verfahren |
| US11948924B2 (en) * | 2021-06-04 | 2024-04-02 | Western Digital Technologies, Inc. | Combined semiconductor device packaging system |
| CN114334869B (zh) * | 2022-03-15 | 2022-05-24 | 合肥阿基米德电子科技有限公司 | 一种自动温度控制的igbt模块封装结构 |
| US12002795B2 (en) | 2022-04-13 | 2024-06-04 | Google Llc | Pluggable CPU modules with vertical power |
| US12308543B2 (en) | 2022-04-18 | 2025-05-20 | Google Llc | Structure for optimal XPU socket compression |
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| US9451699B2 (en) | 2012-07-24 | 2016-09-20 | Kabushiki Kaisha Toshiba | Circuit board, electronic device, and method of manufacturing circuit board |
| WO2016203927A1 (ja) * | 2015-06-16 | 2016-12-22 | ソニー株式会社 | 複合型半導体装置およびその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120132530A (ko) | 2012-12-05 |
| EP2555238A4 (en) | 2013-06-12 |
| US20130021769A1 (en) | 2013-01-24 |
| EP2555238A1 (en) | 2013-02-06 |
| JPWO2011121779A1 (ja) | 2013-07-04 |
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