JP6966379B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP6966379B2 JP6966379B2 JP2018082580A JP2018082580A JP6966379B2 JP 6966379 B2 JP6966379 B2 JP 6966379B2 JP 2018082580 A JP2018082580 A JP 2018082580A JP 2018082580 A JP2018082580 A JP 2018082580A JP 6966379 B2 JP6966379 B2 JP 6966379B2
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- intermetallic compound
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- 239000004065 semiconductor Substances 0.000 title claims description 136
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 186
- 229910000765 intermetallic Inorganic materials 0.000 claims description 89
- 239000000758 substrate Substances 0.000 claims description 65
- 229910052751 metal Inorganic materials 0.000 claims description 46
- 239000002184 metal Substances 0.000 claims description 46
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 15
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052718 tin Inorganic materials 0.000 claims description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 7
- 235000019253 formic acid Nutrition 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 229940125773 compound 10 Drugs 0.000 description 63
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 63
- 239000000919 ceramic Substances 0.000 description 60
- 238000005304 joining Methods 0.000 description 10
- 239000010408 film Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009736 wetting Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910018100 Ni-Sn Inorganic materials 0.000 description 2
- 229910018532 Ni—Sn Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- TZKBVRDEOITLRB-UHFFFAOYSA-N 4-methyl-n-[4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl]-3-[2-(1h-pyrazolo[3,4-b]pyridin-5-yl)ethynyl]benzamide Chemical compound C1CN(C)CCN1CC(C(=C1)C(F)(F)F)=CC=C1NC(=O)C1=CC=C(C)C(C#CC=2C=C3C=NNC3=NC=2)=C1 TZKBVRDEOITLRB-UHFFFAOYSA-N 0.000 description 1
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- -1 Al N Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910017482 Cu 6 Sn 5 Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910020220 Pb—Sn Inorganic materials 0.000 description 1
- 229910020888 Sn-Cu Inorganic materials 0.000 description 1
- 229910019204 Sn—Cu Inorganic materials 0.000 description 1
- 229910019343 Sn—Cu—Sb Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
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- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
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- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
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- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- H01L2224/42—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
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4911—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain
- H01L2224/49111—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain the connectors connecting two common bonding areas, e.g. Litz or braid wires
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- H01L2224/49113—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain the connectors connecting different bonding areas on the semiconductor or solid-state body to a common bonding area outside the body, e.g. converging wires
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- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
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- H01L2224/92—Specific sequence of method steps
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Die Bonding (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Description
1a 上面
1b 下面
1c 電極
2、2a、2b、2c、2d はんだ
3 セラミック基板(配線基板)
3a 上面(表面)
3b 下面(裏面)
3c、3d、3e、3f 配線(導体部)
3g 多孔質構造
3h 孔
3i 酸化メタル膜(酸化膜)
3j ギ塩酸
4 ベース板(金属板)
4a 上面
4b はんだ接合部
4c Niめっき
4d 多孔質構造
4e 孔
5 はんだ
6 ワイヤ
7 端子
8 ケース
9 封止樹脂
10 金属間化合物
10a 迫り出し部(一部)
10b 露出面
11 はんだ接合部
20 パワーモジュール(半導体装置、半導体モジュール)
21 鉄道車両
22 パンタグラフ
23 インバータ
24 冷却装置
25 プリント基板
26 車両本体
27 自動車
28 車体
29 タイヤ
30 実装ユニット
50 パワーモジュール
Claims (12)
- 半導体チップと、
前記半導体チップを支持し、前記半導体チップが搭載される表面に導体部が設けられた配線基板と、
前記半導体チップと前記導体部とを接合するはんだと、
を有し、
前記導体部に含まれる金属と、前記はんだに含まれる金属と、からなる金属間化合物が、平面視で、前記はんだの外側の領域に迫り出し、かつ前記表面に露出して形成され、
前記配線基板の前記表面における前記金属間化合物の外側の領域が多孔質構造となっており、
前記多孔質構造の複数の孔に封止樹脂が埋め込まれている、半導体装置。 - 請求項1記載の半導体装置において、
前記金属間化合物の一部は、平面視で前記はんだを囲むように形成されている、半導体装置。 - 請求項2記載の半導体装置において、
前記金属間化合物の露出面は、前記表面と同じ高さである、半導体装置。 - 請求項1記載の半導体装置において、
前記導体部は、Cu配線であり、
前記金属間化合物は、CuとSnを主成分としている、半導体装置。 - 請求項1記載の半導体装置において、
前記導体部は、Niめっき配線であり、
前記金属間化合物は、NiとSnを主成分としている、半導体装置。 - 半導体チップと、
前記半導体チップを支持する配線基板と、
前記配線基板を支持する金属板と、
前記配線基板と前記金属板とを接合するはんだと、
を有し、
前記金属板に含まれる金属と、前記はんだに含まれる金属と、からなる金属間化合物が、平面視で、前記はんだの外側の領域に迫り出し、かつ前記金属板の表面に露出して形成され、
前記金属板の前記表面における前記金属間化合物の外側の領域が多孔質構造となっており、
前記多孔質構造の複数の孔に封止樹脂が埋め込まれている、半導体装置。 - 請求項6記載の半導体装置において、
前記金属間化合物の一部は、平面視で前記はんだを囲むように形成されている、半導体装置。 - 請求項7記載の半導体装置において、
前記金属間化合物の露出面は、前記金属板の前記表面と同じ高さである、半導体装置。 - 請求項6記載の半導体装置において、
前記金属板は、Cuを主成分として形成されており、
前記金属間化合物は、前記CuとSnを主成分としている、半導体装置。 - 請求項6記載の半導体装置において、
前記金属板の前記はんだと接合するはんだ接合部に、Niめっきが形成されており、
前記金属間化合物は、NiとSnを主成分としている、半導体装置。 - (a)表面に導体部が設けられた配線基板の前記表面上にはんだを介在させて半導体チップを載置する工程、
(b)ギ酸雰囲気で前記配線基板および前記はんだを加熱する工程、
を有し、
前記(b)工程では、前記加熱により前記配線基板の前記表面の酸化膜を還元して前記表面に多孔質構造を形成し、前記加熱により溶融された前記はんだを前記多孔質構造の複数の孔に濡れ広がらせることで、前記導体部に含まれる金属と、前記はんだに含まれる金属と、からなる金属間化合物を、平面視で、前記はんだの外側の領域に迫り出させ、かつ前記表面に露出するように形成する、半導体装置の製造方法。 - 請求項11記載の半導体装置の製造方法において、
前記(b)工程の後、前記配線基板および前記半導体チップを封止樹脂を用いて封止する(c)工程を有し、
前記(c)工程では、前記金属間化合物の外側の領域に形成された前記多孔質構造の複数の孔に前記封止樹脂を埋め込む、半導体装置の製造方法。
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