WO2006046299A1 - マルチチップパッケージおよびその製造方法 - Google Patents
マルチチップパッケージおよびその製造方法 Download PDFInfo
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- WO2006046299A1 WO2006046299A1 PCT/JP2004/016117 JP2004016117W WO2006046299A1 WO 2006046299 A1 WO2006046299 A1 WO 2006046299A1 JP 2004016117 W JP2004016117 W JP 2004016117W WO 2006046299 A1 WO2006046299 A1 WO 2006046299A1
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- Prior art keywords
- interposer
- chip
- pad
- wiring
- wire
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/30—Die-attach connectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/01—Manufacture or treatment
- H10W74/012—Manufacture or treatment of encapsulations on active surfaces of flip-chip devices, e.g. forming underfills
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/15—Encapsulations, e.g. protective coatings characterised by their shape or disposition on active surfaces of flip-chip devices, e.g. underfills
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W46/00—Marks applied to devices, e.g. for alignment or identification
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/013—Manufacture or treatment of die-attach connectors
- H10W72/01308—Manufacture or treatment of die-attach connectors using permanent auxiliary members, e.g. using alignment marks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/073—Connecting or disconnecting of die-attach connectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/073—Connecting or disconnecting of die-attach connectors
- H10W72/07311—Treating the bonding area before connecting, e.g. by applying flux or cleaning
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/075—Connecting or disconnecting of bond wires
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/075—Connecting or disconnecting of bond wires
- H10W72/07511—Treating the bonding area before connecting, e.g. by applying flux or cleaning
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- H—ELECTRICITY
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/20—Bump connectors, e.g. solder bumps or copper pillars; Dummy bumps; Thermal bumps
- H10W72/251—Materials
- H10W72/252—Materials comprising solid metals or solid metalloids, e.g. PbSn, Ag or Cu
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/20—Bump connectors, e.g. solder bumps or copper pillars; Dummy bumps; Thermal bumps
- H10W72/29—Bond pads specially adapted therefor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/30—Die-attach connectors
- H10W72/381—Auxiliary members
- H10W72/387—Flow barriers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/536—Shapes of wire connectors the connected ends being ball-shaped
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/5363—Shapes of wire connectors the connected ends being wedge-shaped
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/541—Dispositions of bond wires
- H10W72/5434—Dispositions of bond wires the connected ends being on auxiliary connecting means on bond pads, e.g. on other bond wires
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/851—Dispositions of multiple connectors or interconnections
- H10W72/853—On the same surface
- H10W72/856—Bump connectors and die-attach connectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/951—Materials of bond pads
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
- H10W74/114—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by a substrate and the encapsulations
- H10W74/117—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by a substrate and the encapsulations the substrate having spherical bumps for external connection
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/20—Configurations of stacked chips
- H10W90/291—Configurations of stacked chips characterised by containers, encapsulations, or other housings for the stacked chips
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/721—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors
- H10W90/724—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors between a chip and a stacked insulating package substrate, interposer or RDL
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/731—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors
- H10W90/732—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors between stacked chips
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/731—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors
- H10W90/734—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors between a chip and a stacked insulating package substrate, interposer or RDL
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/754—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked insulating package substrate, interposer or RDL
Definitions
- the present invention relates to a multichip package configured by stacking semiconductor packages and a manufacturing method thereof.
- SMCP Stacked Multi-Chip Package
- This SMCP is a method of stacking multiple chips on an interposer (MCP substrate) and mounting these chips in a single package.
- the wire bonding technology is a basic mounting technology for electrically connecting a chip and an interposer pad using a wire bonder, and it is impossible to stack chips of the same size at a low cost.
- flip chip technology is a technology in which a chip with bumps on pads is mounted face down and bonded by underfill. This technology is the best However, there is an advantage that a chip of the same size can be stacked on top of the flip chip using wire bonding technology.
- FIG. 1 is a diagram for explaining a problem in mounting a laminated chip by combining conventional flip chip technology and wire bonding technology.
- the lower chip 12 and the upper side are arranged on the main surface of the interposer 11.
- a part of the SMCP in which the chips 13 are stacked and mounted is shown.
- a ball grid array solder ball 14 is provided on the back side of the interposer 11, and the lower chip 12 is fixed by using the liquid underfill 15 applied to the front side as an adhesive, and provided on the back side of the lower chip 12.
- the bumps 17 and the flip pads 18 provided on the surface of the interposer 11 are electrically connected and flip-connected.
- the bonding pad 16 provided on the main surface of the upper chip 13 and the wire pad 19 provided on the surface of the interposer 11 are connected by a bonding wire 20.
- FIG. 2 is a diagram for explaining the bank formation method.
- the wire pad 19 and the chip are mounted.
- a “bank” 21 having a height of several tens of meters, for example, is provided between the region and the region.
- the package size is increased by an amount corresponding to the space for forming the bank (generally about lmm), which is required! If the result is contrary to crystallization, there is a problem.
- the present invention has been made in view of the problem, and the object of the present invention is to provide a wire that can avoid covering the wire pad with an underfill without increasing the knotage size. 'To realize SMCP using flip technology.
- the present invention includes an interposer having a bonding pad and a semiconductor chip stack fixed on the interposer with an adhesive, and the bonding pad is connected to the semiconductor chip stack by a wire, And not covered by the adhesive.
- V has a height! /
- I a multi-chip package.
- the semiconductor chip positioned at the bottom layer of the stacked body is flip-chip connected to the interposer, and the bonding pad is connected to the semiconductor chip positioned at the top layer of the stacked body by wire.
- the bonding pad may include an insulator and a conductive pad member provided on the insulator. Further, the bonding pad may include a metal member provided on a wiring provided on the interposer. Further, the bonding pad may include a bump provided on a wiring provided on the interposer. Further, the bonding pad may include a gold bump provided on a wiring provided on the interposer.
- the bonding pad may include an insulator and a conductor provided on the insulator, and the conductor is a part of the wiring on the interposer.
- the adhesive may be configured to cover the wiring except for a portion located on the insulator. Further, the adhesive may be in contact with at least the lower part of the bonding pad.
- the present invention also includes a step of providing an insulator on the interposer, a step of forming a wiring provided as a bonding pad and having a portion covering the insulator, and an adhesive on the interposer. And a step of attaching a semiconductor chip stack to an interposer. In this case, it may further include a step of bonding a wire between the electrode of the semiconductor chip stack and the portion of the wiring on the insulator.
- the present invention also provides a step of forming a wiring on the interposer, a step of forming a conductive member having a predetermined height on the wiring, and an adhesive on the interposer to stack a semiconductor chip on the interposer.
- a method of manufacturing a multi-chip package including a step of attaching a body. In this case, the attaching step preferably uses the liquid adhesive.
- FIG. 1 is a diagram for explaining problems in mounting a multilayer chip by combining flip chip technology and wire bonding technology.
- FIG. 2 is a diagram for explaining a bank formation method.
- FIG. 3 is a diagram for explaining the configuration of the SMCP of the present invention.
- FIG. 4 is a view for explaining the SMCP manufacturing process of Example 1.
- FIG. 5 is a diagram for explaining the SMCP manufacturing process of Example 2.
- FIG. 6 is a diagram for explaining the SMCP manufacturing process of Example 3.
- FIG. 3 is a diagram for explaining the configuration of the SMCP of the present invention, and shows a part of the SMCP in which the lower chip 102 and the upper chip 103 are stacked and mounted on the main surface of the interposer 101. ing.
- a solder ball 104 is provided on the back side of the interposer 101.
- This The lower chip 102 is fixed using the underfill 105, which is a liquid thermosetting synthetic resin applied to the front surface side of the interposer 101, as an adhesive, and the bump 107 and the interposer provided on the back surface of the lower chip 102
- a flip pad 108 provided on the surface of 101 is electrically connected to be flip-connected.
- a wire bump pad 109 having a height of about 10 m is provided, and the bump pad 109 and the bonding pad 106 provided on the main surface of the upper chip 103 are provided. Connected with bonding wire 110.
- the pad for wire provided on the surface of the interposer 101 is used as the raised pad 109, so that the lower surface of the lower chip 102 is fixed when the lower chip 102 is fixed to the interposer 101.
- the underfill 105 that protrudes from the bottom is blocked by the raised portion of the raised pad 109, thereby preventing the “overhang” of the underfill 105 from covering the top of the raised node 109. Therefore, unlike the bank formation method described above, the wire bumps provided on the bonding pads 106 and the interposer 101 provided on the upper chip 103 without requiring a special space for blocking the underfill protrusion.
- the structure of the raised pad 109 is not limited as long as it can dam up the underfill protrusion and has a wire bonding pad on the top thereof, and the structure of this may be changed as appropriate. Is possible. Specific configuration examples will be described in the following examples.
- the SMCP of the present invention and the multichip module (MCM) disclosed in Japanese Patent Application Laid-Open No. 11-297927 are for a bonding pad 106 provided on the upper chip 103 and a wire provided on the interposer 101. This is common in that no special space is required to block the underfill protrusion when wire bonding to the raised pad 109.
- the pad to which the upper chip is wire-bonded is provided on a sub-board specially provided for the upper chip.
- the present invention includes such a subgroup A board is not required, and the upper chip and the lower chip are mounted on a single substrate. Ie
- the MCM described in JP-A-11-297927 requires a plurality of sub-substrates for mounting each of a plurality of semiconductor chips, and the plurality of sub-substrates are stacked to constitute the MCM. Therefore, in the manufacturing process, it is essential not only to stack semiconductor chips but also to stack sub-substrates corresponding to individual semiconductor chips.
- the upper chip 103 and the lower chip 102 are both mounted on a common interposer 101, and the stacking process required when manufacturing the SMCP is applied to the chip. The process will be greatly simplified.
- FIG. 4 is a diagram for explaining the manufacturing process of the SMCP of the present embodiment.
- the left diagram is a schematic sectional view and the right diagram is a schematic top view.
- an interposer 101 serving as a substrate for the SMCP wiring layer of the present invention and an insulator attachment 111 are prepared (FIG. 4 (a)), and then the attachment is made at a predetermined position in the vicinity of the outer periphery on the interposer 101.
- Adhere 111 and fix it with thermosetting grease (Fig. 4 (b)).
- the dimension of this attachment 111 is a force that can be changed as appropriate, for example, its height is about 50 m.
- FIG. 4 is a diagram for explaining the manufacturing process of the SMCP of the present embodiment.
- FIGS. 4 (a) to (f) the left diagram is a schematic sectional view and the right diagram is a schematic top view.
- FIG. 4 (b) shows only the attachment 111 provided near the left end of the interposer 101.
- the interposer requires wire bonding with the bonding pad 106 provided on the upper chip 103. Attachments 111 of the required quantity and size are provided at corresponding locations on 101.
- the wiring layer 112 is formed on the main surface of the interposer 101.
- the wiring layer 112 is formed by a general method such as etching, electrolytic plating, or electroless plating.
- the flip pad 108 and the wiring portion 113 are formed on the main surface of the interposer 101, and if the interposer 101 is a multilayer substrate, a through hole 114 is also formed.
- a wire pad is formed on the main surface (and side surface) of the attachment 111, and the attachment 111 and the wire node formed on the top thereof constitute the raised pad 109.
- an underfill 105 is applied so as not to cover the surface of the raised pad 109 (FIG. 4 (d)), and the flip pad 108 provided on the interposer 101 and the lower chip are applied.
- the lower chip 102 is mounted so that the bump 107 provided on the back surface of the battery 102 is electrically connected (FIG. 4 (e)).
- the underfill 105 is also pushed and spreads by the back end edge force of the lower chip 102 and oozes out to the side surface of the raised pad 109, for example.
- the raised pad wired 109 has a sufficient height (eg, 50 m) so that it does not cover the top pad portion of the raised pad 109.
- the upper chip 103 is laminated on the lower chip 102 fixed on the interposer 101 in this manner, and the bonding pad 106 provided on the upper chip is connected to the raised pad 109 with the bonding wire 110. (Fig. 4 (f)). Thereafter, the multilayer chip is sealed with grease, and a solder ball (not shown) is formed on the back surface of the interposer 101 to complete the SMCP.
- FIG. 5 is a diagram for explaining the manufacturing process of the SMCP of the present embodiment.
- the left diagram is a schematic sectional view
- the right diagram is a schematic top view.
- the wiring layer 112 is formed on the main surface of the interposer 101 serving as the substrate for the SMCP wiring layer of the present invention.
- the wiring layer 112 is formed by a general method such as etching, electrolytic plating, or electroless plating.
- a flip pad 108, a wiring portion 113, and a wire pad are formed at predetermined locations near the outer peripheral portion on the main surface of the interposer 101 (FIG. 5 (a)).
- a raised pad 109 having a conductive material force such as Cu is formed on each wire pad provided in the vicinity of the outer periphery on the interposer 101 by a conductive paste adhesive or an ultrasonic fusion technique.
- Join Fig. 5 (b)
- FIG. 5 (b) only the raised pad 109 provided in the vicinity of the left end of the interposer 101 is shown.
- the interfacing that requires wire bonding with the bonding pad 106 provided on the upper chip 103 is shown.
- raised pads 109 of the required quantity and size are provided at corresponding positions on the poser 101.
- the flip pad 108 provided on the interposer 101 and the lower side are applied.
- the lower chip 102 is mounted so that the bumps 107 provided on the back surface of the chip 102 are electrically connected (FIG. 5 (d)).
- the underfill 105 is also pushed by the rear end edge force of the lower chip 102 and spreads, for example, to the side of the raised pad 109.
- the raised pad 109 has a sufficient height (for example, 50 m), the wire pad portion on the top of the raised pad 109 is not covered.
- the upper chip 103 is laminated on the lower chip 102 fixed on the interposer 101 in this way, and the bonding pad 106 provided on the upper chip is connected to the raised pad 109 with the bonding wire 110. (Fig. 5 (e)). Thereafter, the multilayer chip is sealed with grease, and a solder ball (not shown) is formed on the back surface of the interposer 101 to complete the SMCP.
- FIG. 6 is a view for explaining the manufacturing process of the SMCP of the present embodiment, and for each of FIGS. 6A to 6E, the left view is a schematic cross-sectional view, and the right view is a schematic top view.
- the wiring layer 112 is formed on the main surface of the interposer 101 serving as the substrate for the SMCP wiring layer of the present invention.
- the wiring layer 112 is formed by a general method such as etching, electrolytic plating, or electroless plating.
- a flip pad 108 and a wiring portion 113 are formed on the main surface of the interposer 101, and a wire pad is formed at a predetermined location near the outer periphery (FIG. 6A).
- Au bumps 115 serving as raised pads are joined by thermocompression bonding or the like on individual wire pads provided in the vicinity of the outer periphery on the interposer 101 using a normal ball bonding method.
- Figure 6 (b) In FIG. 6 (b), only the Au bump 115 provided in the vicinity of the left end of the interposer 101 is illustrated. Wire bonding with the bonding pad 106 provided on the upper chip 103 is required. Needless to say, Au bumps 115 of the required quantity and size are provided at corresponding locations on the interposer 101. Subsequently, underfill 105 is applied so as not to cover the surface of the Au bump 115 (FIG.
- the flip pad 108 provided on the interposer 101 and the back surface of the lower chip 102 are applied.
- the lower chip 102 is mounted so as to be electrically connected to the provided bump 107 (FIG. 6 (d)).
- the underfill 105 is also pushed and spreads by the back end edge force of the lower chip 102, for example, oozes out to the side surface of the Au bump 115.
- the Au bump 115 has a sufficient height (for example, 50 ⁇ m), the wire pad portion on the top of the Au bump 115 is not covered.
- the upper chip 103 is laminated on the lower chip 102 fixed on the interposer 101 in this way, and the bonding pad 106 provided on the upper chip is connected to the Au bump 115 by the bonding wire 110. ( Figure 6 (e)). Thereafter, the laminated chip is sealed with grease, and a solder ball (not shown) is formed on the back surface of the interposer 101 to complete the SMCP. According to this method, the formation of the Au bump 115 can be performed using the same apparatus as the bonding apparatus for forming the bonding wire 110, which is advantageous in terms of cost. Industrial applicability
- the present invention provides an SMCP using a wire 'flip technique that can avoid covering the wire pad with an underfill without increasing the size of the cage.
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- Wire Bonding (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006542176A JPWO2006046299A1 (ja) | 2004-10-29 | 2004-10-29 | マルチチップパッケージおよびその製造方法 |
| PCT/JP2004/016117 WO2006046299A1 (ja) | 2004-10-29 | 2004-10-29 | マルチチップパッケージおよびその製造方法 |
| US11/261,174 US20060108677A1 (en) | 2004-10-29 | 2005-10-28 | Multi-chip package and method of fabricating the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/016117 WO2006046299A1 (ja) | 2004-10-29 | 2004-10-29 | マルチチップパッケージおよびその製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/261,174 Continuation US20060108677A1 (en) | 2004-10-29 | 2005-10-28 | Multi-chip package and method of fabricating the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006046299A1 true WO2006046299A1 (ja) | 2006-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/016117 Ceased WO2006046299A1 (ja) | 2004-10-29 | 2004-10-29 | マルチチップパッケージおよびその製造方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20060108677A1 (ja) |
| JP (1) | JPWO2006046299A1 (ja) |
| WO (1) | WO2006046299A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101611481A (zh) * | 2007-01-09 | 2009-12-23 | 英飞凌科技股份有限公司 | 半导体封装 |
| US8441123B1 (en) * | 2009-08-13 | 2013-05-14 | Amkor Technology, Inc. | Semiconductor device with metal dam and fabricating method |
| KR102365682B1 (ko) | 2017-11-13 | 2022-02-21 | 삼성전자주식회사 | 반도체 패키지 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000021920A (ja) * | 1998-07-02 | 2000-01-21 | Sony Corp | 半導体装置 |
| JP2002222914A (ja) * | 2001-01-26 | 2002-08-09 | Sony Corp | 半導体装置及びその製造方法 |
| JP2002231879A (ja) * | 2001-01-31 | 2002-08-16 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
| JP2003234427A (ja) * | 2002-02-07 | 2003-08-22 | Matsushita Electric Ind Co Ltd | 配線基板、それを用いた半導体装置、それらの製造方法 |
| JP2004193174A (ja) * | 2002-12-06 | 2004-07-08 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6774471B2 (en) * | 2002-04-30 | 2004-08-10 | Intel Corporation | Protected bond fingers |
-
2004
- 2004-10-29 JP JP2006542176A patent/JPWO2006046299A1/ja active Pending
- 2004-10-29 WO PCT/JP2004/016117 patent/WO2006046299A1/ja not_active Ceased
-
2005
- 2005-10-28 US US11/261,174 patent/US20060108677A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000021920A (ja) * | 1998-07-02 | 2000-01-21 | Sony Corp | 半導体装置 |
| JP2002222914A (ja) * | 2001-01-26 | 2002-08-09 | Sony Corp | 半導体装置及びその製造方法 |
| JP2002231879A (ja) * | 2001-01-31 | 2002-08-16 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
| JP2003234427A (ja) * | 2002-02-07 | 2003-08-22 | Matsushita Electric Ind Co Ltd | 配線基板、それを用いた半導体装置、それらの製造方法 |
| JP2004193174A (ja) * | 2002-12-06 | 2004-07-08 | Matsushita Electric Ind Co Ltd | 半導体装置およびその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060108677A1 (en) | 2006-05-25 |
| JPWO2006046299A1 (ja) | 2008-05-22 |
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