WO2022113617A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- WO2022113617A1 WO2022113617A1 PCT/JP2021/039593 JP2021039593W WO2022113617A1 WO 2022113617 A1 WO2022113617 A1 WO 2022113617A1 JP 2021039593 W JP2021039593 W JP 2021039593W WO 2022113617 A1 WO2022113617 A1 WO 2022113617A1
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- Prior art keywords
- semiconductor device
- semiconductor element
- semiconductor
- layer
- electrode
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48475—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball
- H01L2224/48476—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area
- H01L2224/48491—Connecting portions connected to auxiliary connecting means on the bonding areas, e.g. pre-ball, wedge-on-ball, ball-on-ball between the wire connector and the bonding area being an additional member attached to the bonding area through an adhesive or solder, e.g. buffer pad
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73221—Strap and wire connectors
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- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73263—Layer and strap connectors
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- H01L2224/732—Location after the connecting process
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
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- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19107—Disposition of discrete passive components off-chip wires
Definitions
- a plurality of semiconductor devices are manufactured at the same time. Therefore, even in a semiconductor device equipped with only one semiconductor element, the semiconductor element may be destroyed due to the bias of the load due to the non-uniformity of the height during the sintering process accompanied by pressurization.
- one object of the present disclosure is to provide a semiconductor device capable of suppressing an unbalanced load applied to a semiconductor element during a sintering process accompanied by pressurization.
- FIG. 2 It is a partially enlarged view which is a part of FIG. 2 enlarged. It is a partially enlarged view which is a part of FIG. 4 enlarged. It is sectional drawing which follows the XIII-XIII line of FIG. It is a partially enlarged view which is a part of FIG. 4 enlarged. It is sectional drawing which follows the XV-XV line of FIG.
- a certain thing A is located on a certain thing B means "a certain thing A is in contact with a certain thing B and a certain thing A is located on a certain thing B" unless otherwise specified. "What you are doing” and "The thing A is located on the thing B while another thing is intervening between the thing A and the thing B".
- something A overlaps with a certain thing B when viewed in a certain direction means “overlaps a certain thing A with all of a certain thing B” and "a certain thing A overlaps with all of a certain thing B” unless otherwise specified. "Overlapping a part of a certain object B" is included.
- each of the plurality of semiconductor elements 10B is mounted on the support substrate 20 (conductive member 22B described later).
- the plurality of semiconductor elements 10B are arranged at equal intervals in the y direction and are separated from each other.
- the element back surface 102 faces the conductive member 22B in a posture mounted on the conductive member 22B.
- each semiconductor element 10B is provided with a support substrate 20 (conductive member 22B) via a conductive bonding layer 3 (element bonding layer 31B described later). ) Is conductively joined.
- the support substrate 20 is a support member that supports a plurality of semiconductor elements 10.
- the support substrate 20 includes an insulating substrate 21, a plurality of conductive members 22, a pair of insulating layers 23A and 23B, a pair of gate layers 24A and 24B, and a pair of detection layers 25A and 25B.
- the pair of insulating layers 23A and 23B have electrical insulating properties, and the constituent material thereof is, for example, glass epoxy resin. As shown in FIGS. 2 and 4, each of the pair of insulating layers 23A and 23B has a strip shape extending in the y direction.
- the insulating layer 23A is joined to the main surface 221A of the conductive member 22A.
- the insulating layer 23A is located on the x-direction x2 side of the plurality of semiconductor elements 10A.
- the insulating layer 23B is joined to the main surface 221B of the conductive member 22B.
- the insulating layer 23B is located in the x direction x1 with respect to the semiconductor element 10B.
- Each of the plurality of lead joining layers 321 and 322 is for joining each lead member 51.
- each of the plurality of gate wires 61 is joined to the gate electrode 112 of each semiconductor element 10 at one end and to any of the pair of gate layers 24A and 24B at the other end.
- the plurality of gate wires 61 include one that conducts the gate electrode 112 of each semiconductor element 10A and the gate layer 24A, and one that conducts the gate electrode 112 of each semiconductor element 10B and the gate layer 24B.
- the metal material 302 for sintering is formed on the source electrodes 111 and the conductive member 22B of the plurality of semiconductor elements 10A and 10B, respectively.
- the metal material 302 for sintering is a base for the lead bonding layers 321, 322 and the terminal bonding layer 33.
- preform-shaped silver for sintering is used as each metal material 302 for sintering.
- This preform-shaped silver for sintering is formed into a predetermined shape after, for example, the above-mentioned paste-like silver for sintering is dried and treated.
- the preform-shaped silver for sintering may be formed into a predetermined shape and then dried.
- the sintering metal materials 301, 302 pressurized via the lead member 51 and the sintering metal materials 301, 302 pressurized via the input terminal 42 are, for example, about 90 at a temperature of about 250 ° C. Heat for seconds.
- the heating conditions are not limited to this.
- the silver particles are bonded to each other to form a sintered metal.
- the sintered metal interposed between the semiconductor element 10A and the conductive member 22A is the element bonding layer 31A of the semiconductor device A1
- the sintered metal interposed between the semiconductor element 10B and the conductive member 22B is a semiconductor.
- first connection wire 63 connecting the gate layer 24A and the gate terminal 44A and a first connection wire 63 connecting the gate layer 24B and the gate terminal 44B are formed.
- second connection wire 64 connecting the detection layer 25A and the detection terminal 45A and a second connection wire 64 connecting the detection layer 25B and the detection terminal 45B are formed.
- the order of forming the plurality of wires 6 is not particularly limited.
- a cushioning member 82 is interposed between each protruding portion 421c of the input terminal 42 and the source electrode 111 of the semiconductor element 10B, respectively.
- the cushioning member 82 is made of Al and has a Vickers hardness smaller than that of the input terminal 42 made of Cu. Therefore, in the pressurizing and heating step, when the pressurizing member 90 presses the input terminal 42 to pressurize, a part of the cushioning member 82 is crushed by the pressurization and becomes thinner, so that the upper surface of each protruding portion 421c is formed.
- the position in the z direction (height from the main surface 221B of the conductive member 22B to the upper surface of each protrusion 421c) is about the same. As a result, since the load is evenly applied to each semiconductor element 10B, it is possible to suppress the unbalanced load from being applied to some of the semiconductor elements 10B.
- a plating layer 85 made of Ag is formed on the entire surfaces of the main surface 801 and the back surface 802 of each cushioning member 8. Further, a plating layer 515 made of Ag is formed on the first joint portion 511 of each lead member 51, and a plating layer 421d made of Ag is formed on each protruding portion 421c of the input terminal 42. As a result, each cushioning member 8 can be joined to the first joining portion 511 of the lead member 51 or the protruding portion 421c of the input terminal 42 by solid phase diffusion joining of Ag. Further, the source electrode 111 of each semiconductor element 10 is formed with a plating layer 115 having an Au layer laminated on the outermost side.
- the sintering metal material 301 formed under each semiconductor element 10A and the sintering metal material 302 formed on each semiconductor element 10A are simultaneously pressure-heated. Has been done. That is, the element bonding layer 31A and the lead bonding layer 321 are sintered at the same time. Since the element bonding layer 31A and the lead bonding layer 321 are formed from these sintering metal materials 301 and 302 by one pressure heat treatment, the productivity of the semiconductor device A1 can be improved. Further, according to the present embodiment, the sintering metal material 301 formed under each semiconductor element 10B and the sintering metal material 302 formed on each semiconductor element 10B are simultaneously pressure-heated. Has been done.
- the element bonding layer 31B and the terminal bonding layer 33 are simultaneously sintered. Since the element bonding layer 31B and the terminal bonding layer 33 are formed from these sintering metal materials 301 and 302 by one pressure heat treatment, the productivity of the semiconductor device A1 can be improved.
- the element bonding layers 31A and 31B are formed of a paste-like sintering metal material 301 which is silver for sintering. Paste-shaped silver for sintering is cheaper than silver for preform-shaped sintering. Therefore, the semiconductor device A1 can suppress the manufacturing cost.
- the element bonding layers 31A and 31B may be formed of preform-shaped sintering silver. That is, preform-shaped silver for sintering may be used as the metal material 301 for sintering. In this case, the step of drying the paste-like silver for sintering becomes unnecessary, so that the productivity can be improved.
- the sintering metal material 301 formed under each semiconductor element 10 and the sintering metal material 302 formed on each semiconductor element 10 are simultaneously pressure-heated. I explained the case where it is done, but it is not limited to this.
- the pressure heat treatment of the sintering metal material 301 formed under each semiconductor element 10 and the pressure heat treatment of the sintering metal material 302 formed on each semiconductor element 10 are performed separately. You may.
- the conductive bonding layer 3 is made of a sintered metal has been described, but the present invention is not limited to this.
- the conductive bonding layer 3 may be, for example, a silver paste.
- FIG. 17 and 18 are diagrams for explaining the semiconductor device A2 according to the second embodiment of the present disclosure.
- FIG. 17 is a partially enlarged plan view showing the semiconductor device A2, and is a diagram corresponding to FIG. 12.
- FIG. 17 it is shown by an imaginary line (dashed-dotted line) through the lead member 51.
- FIG. 18 is a partially enlarged cross-sectional view showing the semiconductor device A2, and is a diagram corresponding to FIG. 13.
- the semiconductor device A2 according to the present embodiment is different from the semiconductor device A1 according to the first embodiment in that the size of the shock absorber 8 in the z-direction is small.
- Each cushioning member 8 according to the second embodiment has a smaller size in the z-direction view than the semiconductor device A1 according to the first embodiment.
- the cushioning member 8 has a size included in the first joint portion 511 of the lead member 51 or the protruding portion 421c of the input terminal 41 in the z-direction view before being deformed, and is included even after the deformation. ing.
- the shape of the cushioning member 8 is the same as that of the first embodiment, and is a shape having a portion where the outer line is swelled in a curved shape by being crushed by pressure in the z-direction view. Further, as shown in FIG. 17, both ends in a direction in which the cross section is orthogonal to the z direction project outward in an arc shape.
- the cushioning member 8 does not protrude from the first joint portion 511 or the protruding portion 421c in the z-direction view, and does not have a portion corresponding to the second portion 81b (82b) in the first embodiment.
- FIG. 19 and 20 are diagrams for explaining the semiconductor device A3 according to the third embodiment of the present disclosure.
- FIG. 19 is a partially enlarged perspective view showing the semiconductor device A3, and is a diagram corresponding to FIG. 11.
- the gate wire 61 and the detection wire 62 are omitted.
- FIG. 20 is a partially enlarged cross-sectional view showing the semiconductor device A3, and is a diagram corresponding to FIG. 13.
- the semiconductor device A3 according to the present embodiment is different from the semiconductor device A1 according to the first embodiment in that the source wire 65 is provided in place of the lead member 51.
- the semiconductor device A3 does not include a plurality of lead members 51, but further includes a plurality of source wires 65 and a plurality of plate members 55.
- the source electrode 111 of the semiconductor element 10A and the conductive member 22B are conductively connected by a source wire 65 instead of the lead member 51.
- Each source wire 65 is a so-called bonding wire. Each source wire 65 conducts the source electrode 111 of the semiconductor element 10A and the conductive member 22B. Each source wire 65 is made of, for example, Cu so that it can withstand a large current. One end of each source wire 65 is bonded to a plate member 55 conductive to the source electrode 111 of each semiconductor element 10A, and the other end is bonded to the conductive member 22B.
- the plate member 55 is a cushioning material for protecting the source electrode 111 of the semiconductor element 10A from the impact when the source wire 65 is joined, and is, for example, a plate member made of Cu.
- the plate member 55 has a rectangular shape in the z-direction view and overlaps with the source electrode 111 of the semiconductor element 10A.
- the plating layer 515 is formed on the surface of the plate member 55 facing the semiconductor element 10A.
- the plating layer 515 is the same as that of the first embodiment, and is made of, for example, Ag.
- the material of the plating layer 515 is not limited.
- the dimension (thickness) of the plate member 55 in the z direction is about 100 to 200 ⁇ m.
- the thickness of the plate member 55 is not limited to this.
- the cushioning member 81 is the same as that of the first embodiment, and is interposed between the source electrode 111 of the semiconductor element 10A and the plate member 55. Some of the cushioning members 81 are deformed when the pressurizing member 90 presses each plate member 55 in the pressurizing and heating step.
- the plate member 55 is an example of the "first connecting member” or the "second connecting member”.
- a cushioning member 81 is interposed between each plate member 55 and the source electrode 111 of the semiconductor element 10A. Therefore, it is possible to prevent an unbalanced load from being applied to some of the semiconductor elements 10A. Further, a cushioning member 82 is interposed between each protruding portion 421c of the input terminal 42 and the source electrode 111 of the semiconductor element 10B. Therefore, it is possible to prevent an unbalanced load from being applied to some of the semiconductor elements 10B. Further, the semiconductor device A3 has the same effect as the semiconductor device A1 by adopting the same configuration as the semiconductor device A1.
- FIG. 21 is a partially enlarged cross-sectional view showing the semiconductor device A4 according to the fourth embodiment of the present disclosure, and is a diagram corresponding to FIG. 13.
- the semiconductor device A4 according to the present embodiment is different from the semiconductor device A1 according to the first embodiment in that it does not include the lead bonding layer 321 and the terminal bonding layer 33.
- the buffer member 81 bonded to the first bonding portion 511 of the lead member 51 and the source electrode 111 of the semiconductor element 10A are a solid phase of the plating layer 85 (Au) and the plating layer 115 (the outermost layer is Au). It is joined by diffusion joining.
- the buffer member 82 bonded to each protrusion 421c of the input terminal 42 and the source electrode 111 of the semiconductor element 10B are solid-phase diffusion of the plating layer 85 (Au) and the plating layer 115 (the outermost layer is Au). It is joined by joining.
- the shock absorber 8 and the source electrode 111 of the semiconductor element 10 are bonded by solid phase diffusion bonding between the plating layer 85 (Au) and the plating layer 115 (the outermost layer is Au). .. Therefore, it is not necessary to provide the lead bonding layer 321 and the terminal bonding layer 33.
- FIG. 22 is a partially enlarged cross-sectional view showing the semiconductor device A5 according to the fifth embodiment of the present disclosure, and is a diagram corresponding to FIG. 13.
- the semiconductor device A5 according to the present embodiment has a different arrangement position of the shock absorber 81 from the semiconductor device A1 according to the first embodiment.
- FIG. 24 is a partially enlarged cross-sectional view showing the semiconductor device A7 according to the seventh embodiment of the present disclosure, and is a diagram corresponding to FIG. 13.
- the material of the lead member 51 is different from that of the semiconductor device A1 according to the first embodiment.
- the semiconductor device A7 has the same effect as the semiconductor device A1 by adopting the same configuration as the semiconductor device A1.
- the first joint portion 511 of the lead member 51 according to the ninth embodiment is electrically connected to the source electrode 111 of the semiconductor element 10A via the cushioning member 81 and the lead joint layer 321.
- the second joint portion 512 is joined to the terminal portion 922 via the lead joint layer 322.
- the semiconductor device according to any one of Supplementary note 6 to 9, further comprising a plating layer interposed between the first member and the first electrode and in contact with the first member.
- Appendix 11 The first member is connected to a first portion that overlaps the first connecting member in the thickness direction view and a second portion that is connected to the first portion and protrudes from the first connecting member in the thickness direction view.
- the semiconductor device according to any one of Supplementary note 6 to 10, further comprising.
- Appendix 12. A second semiconductor device having a second element main surface and a second element back surface facing opposite sides in the thickness direction, and a second electrode arranged on the second element main surface.
- a second member that overlaps with the second electrode in the thickness direction has a Vickers hardness smaller than that of the first connecting member, and has conductivity.
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Abstract
Description
厚さ方向において互いに反対側を向く第1素子主面および第1素子裏面と、前記第1素子主面に配置された第1電極と、を有する第1半導体素子と、
前記第1電極に導通する第1接続部材と、
前記厚さ方向視において前記第1電極に重なり、ビッカース硬さが前記第1接続部材のビッカース硬さより小さく、かつ導電性を有する第1部材と、
を備えている、半導体装置。
付記2.
前記第1部材は、前記厚さ方向視において、外形線が曲線状に膨らんだ部分を有する、付記1に記載の半導体装置。
付記3.
前記第1部材のビッカース硬さは、Cuのビッカース硬さより小さい、付記1または2に記載の半導体装置。
付記4.
前記第1部材のビッカース硬さは、50HV以下1HV以上である、付記3に記載の半導体装置。
付記5.
前記第1部材は、Alからなる、付記4に記載の半導体装置。
付記6.
前記第1部材は、前記第1電極と前記第1接続部材との間に介在する、付記1ないし5のいずれかに記載の半導体装置。
付記7.
前記第1部材と前記第1電極との間に介在する導電性接合層をさらに備えている、付記6に記載の半導体装置。
付記8.
前記導電性接合層は、焼結金属からなる、付記7に記載の半導体装置。
付記9.
前記焼結金属は、焼結銀である、付記8に記載の半導体装置。
付記10.
前記第1部材と前記第1電極との間に介在し、かつ、前記第1部材に接するめっき層をさらに備えている、付記6ないし9のいずれかに記載の半導体装置。
付記11.
前記第1部材は、前記厚さ方向視において前記第1接続部材に重なる第1部と、前記第1部につながり、かつ、前記厚さ方向視において前記第1接続部材から突出した第2部と、を備えている、付記6ないし10のいずれかに記載の半導体装置。
付記12.
前記厚さ方向において互いに反対側を向く第2素子主面および第2素子裏面と、前記第2素子主面に配置された第2電極と、を有する第2半導体素子と、
前記厚さ方向視において前記第2電極に重なり、ビッカース硬さが前記第1接続部材より小さく、かつ導電性を有する第2部材と、
をさらに備えている、付記6ないし11のいずれかに記載の半導体装置。
付記13.
前記第2部材を介して前記第2電極に導通する第2接続部材をさらに備えている、付記12に記載の半導体装置。
付記14.
前記第1接続部材は、前記第2部材を介して前記第2電極に導通する、付記12に記載の半導体装置。
付記15.
前記第1部材の前記厚さ方向の寸法は、前記第1半導体素子の前記厚さ方向の寸法の10%以上30%以下である、付記1ないし14のいずれかに記載の半導体装置。
付記16.
厚さ方向において互いに反対側を向く第1素子主面および第1素子裏面と、前記第1素子主面に配置された第1電極と、を有する第1半導体素子と、
前記厚さ方向視において前記第1電極に重なり、かつ、前記第1電極に導通する第1接続部材と、
を備え、
前記第1接続部材は、ビッカース硬さがCuのビッカース硬さより小さく、かつ、導電性を有する、半導体装置。
付記17.
前記第1半導体素子が搭載される導電体と、
前記第1半導体素子と前記導電体との間に介在する第2の導電性接合層と、
をさらに備え、
前記第2の導電性接合層は、焼結銀からなる、付記1ないし16のいずれかに記載の半導体装置。
付記18.
前記第1接続部材に接合されるワイヤをさらに備えている、付記1ないし17のいずれかに記載の半導体装置。
付記19.
前記第1半導体素子は、パワーMOSFETである、付記1ないし18のいずれかに記載の半導体装置。
101:素子主面 102:素子裏面
111:ソース電極 112:ゲート電極
113:ドレイン電極 115:めっき層
13:絶縁膜 20:支持基板
21:絶縁基板 211:主面
212:裏面 22,22A,22B:導電部材
221A,221B:主面 222:めっき層
23A,23B:絶縁層 24A,24B:ゲート層
25A,25B:検出層 29:土台部
3:導電性接合層 301,302:焼結用金属材料
31,31A,31B:素子接合層
321,322:リード接合層
33:端子接合層 40:端子
41:入力端子 411:パッド部
411a:櫛歯部 412:端子部
42:入力端子 421:パッド部
421a:連結部 421b:延出部
421c:突出部 421d:めっき層
422:端子部 43:出力端子
431:パッド部 431a:櫛歯部
432:端子部 44A,44B:ゲート端子
441:パッド部 442:端子部
45A,45B:検出端子 451:パッド部
452:端子部 46:ダミー端子
461:パッド部 462:端子部
47A,47B:側方端子 49:絶縁部材
491:介在部 492:延出部
51:リード部材 511:第1接合部
512:第2接合部 513:連絡部
515:めっき層 55:板部材
6:ワイヤ 61:ゲートワイヤ
62:検出ワイヤ 63:第1接続ワイヤ
64:第2接続ワイヤ 65:ソースワイヤ
7:封止樹脂 71:樹脂主面
72:樹脂裏面 731~734:樹脂側面
75:凹部 8,81,82:緩衝部材
801:主面 802:裏面
81a,82a:第1部 81b,82b:第2部
85:めっき層 90:加圧部材
92:リードフレーム 921:ダイパッド部
922:端子部
Claims (19)
- 厚さ方向において互いに反対側を向く第1素子主面および第1素子裏面と、前記第1素子主面に配置された第1電極と、を有する第1半導体素子と、
前記第1電極に導通する第1接続部材と、
前記厚さ方向視において前記第1電極に重なり、ビッカース硬さが前記第1接続部材のビッカース硬さより小さく、かつ導電性を有する第1部材と、
を備えている、半導体装置。 - 前記第1部材は、前記厚さ方向視において、外形線が曲線状に膨らんだ部分を有する、請求項1に記載の半導体装置。
- 前記第1部材のビッカース硬さは、Cuのビッカース硬さより小さい、請求項1または2に記載の半導体装置。
- 前記第1部材のビッカース硬さは、50HV以下1HV以上である、請求項3に記載の半導体装置。
- 前記第1部材は、Alからなる、請求項4に記載の半導体装置。
- 前記第1部材は、前記第1電極と前記第1接続部材との間に介在する、請求項1ないし5のいずれかに記載の半導体装置。
- 前記第1部材と前記第1電極との間に介在する導電性接合層をさらに備えている、請求項6に記載の半導体装置。
- 前記導電性接合層は、焼結金属からなる、請求項7に記載の半導体装置。
- 前記焼結金属は、焼結銀である、請求項8に記載の半導体装置。
- 前記第1部材と前記第1電極との間に介在し、かつ、前記第1部材に接するめっき層をさらに備えている、請求項6ないし9のいずれかに記載の半導体装置。
- 前記第1部材は、前記厚さ方向視において前記第1接続部材に重なる第1部と、前記第1部につながり、かつ、前記厚さ方向視において前記第1接続部材から突出した第2部と、を備えている、請求項6ないし10のいずれかに記載の半導体装置。
- 前記厚さ方向において互いに反対側を向く第2素子主面および第2素子裏面と、前記第2素子主面に配置された第2電極と、を有する第2半導体素子と、
前記厚さ方向視において前記第2電極に重なり、ビッカース硬さが前記第1接続部材より小さく、かつ導電性を有する第2部材と、
をさらに備えている、請求項6ないし11のいずれかに記載の半導体装置。 - 前記第2部材を介して前記第2電極に導通する第2接続部材をさらに備えている、請求項12に記載の半導体装置。
- 前記第1接続部材は、前記第2部材を介して前記第2電極に導通する、請求項12に記載の半導体装置。
- 前記第1部材の前記厚さ方向の寸法は、前記第1半導体素子の前記厚さ方向の寸法の10%以上30%以下である、請求項1ないし14のいずれかに記載の半導体装置。
- 厚さ方向において互いに反対側を向く第1素子主面および第1素子裏面と、前記第1素子主面に配置された第1電極と、を有する第1半導体素子と、
前記厚さ方向視において前記第1電極に重なり、かつ、前記第1電極に導通する第1接続部材と、
を備え、
前記第1接続部材は、ビッカース硬さがCuのビッカース硬さより小さく、かつ、導電性を有する、半導体装置。 - 前記第1半導体素子が搭載される導電体と、
前記第1半導体素子と前記導電体との間に介在する第2の導電性接合層と、
をさらに備え、
前記第2の導電性接合層は、焼結銀からなる、請求項1ないし16のいずれかに記載の半導体装置。 - 前記第1接続部材に接合されるワイヤをさらに備えている、請求項1ないし17のいずれかに記載の半導体装置。
- 前記第1半導体素子は、パワーMOSFETである、請求項1ないし18のいずれかに記載の半導体装置。
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JP2014017417A (ja) * | 2012-07-10 | 2014-01-30 | Denso Corp | 半導体装置 |
JP2018504788A (ja) * | 2014-12-17 | 2018-02-15 | アルファ・アセンブリー・ソリューションズ・インコーポレイテッドAlpha Assembly Solutions Inc. | ダイとクリップの接着方法 |
JP2018107269A (ja) * | 2016-12-26 | 2018-07-05 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
JP2018110149A (ja) * | 2016-12-28 | 2018-07-12 | 三菱電機株式会社 | 半導体装置の製造方法 |
JP2018116994A (ja) * | 2017-01-17 | 2018-07-26 | 三菱マテリアル株式会社 | パワーモジュール |
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JP2014017417A (ja) * | 2012-07-10 | 2014-01-30 | Denso Corp | 半導体装置 |
JP2018504788A (ja) * | 2014-12-17 | 2018-02-15 | アルファ・アセンブリー・ソリューションズ・インコーポレイテッドAlpha Assembly Solutions Inc. | ダイとクリップの接着方法 |
JP2018107269A (ja) * | 2016-12-26 | 2018-07-05 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
JP2018110149A (ja) * | 2016-12-28 | 2018-07-12 | 三菱電機株式会社 | 半導体装置の製造方法 |
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