KR100694428B1 - 반도체칩의 하부 범프 금속화층 구조 및 그 제조 방법 - Google Patents
반도체칩의 하부 범프 금속화층 구조 및 그 제조 방법 Download PDFInfo
- Publication number
- KR100694428B1 KR100694428B1 KR1020000086239A KR20000086239A KR100694428B1 KR 100694428 B1 KR100694428 B1 KR 100694428B1 KR 1020000086239 A KR1020000086239 A KR 1020000086239A KR 20000086239 A KR20000086239 A KR 20000086239A KR 100694428 B1 KR100694428 B1 KR 100694428B1
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- South Korea
- Prior art keywords
- layer
- semiconductor chip
- aluminum
- nickel
- vanadium
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 60
- 238000001465 metallisation Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 165
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 66
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 58
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910000679 solder Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 29
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 29
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011241 protective layer Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 31
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 229920002120 photoresistant polymer Polymers 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007772 electroless plating Methods 0.000 claims description 3
- 238000002294 plasma sputter deposition Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims 1
- 239000013256 coordination polymer Substances 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 239000002952 polymeric resin Substances 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/60—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/023—Redistribution layers [RDL] for bonding areas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/11—Manufacturing methods
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Wire Bonding (AREA)
Abstract
Description
Claims (7)
- 반도체칩의 표면에 형성된 다수의 알루미늄 본딩패드로부터 일측으로 연장되어 형성된 제1알루미늄층과;상기 제1알루미늄층의 표면에 형성된 니켈/바나디엄층과;상기 니켈/바나디엄층의 표면에 형성된 구리층과;상기 구리층의 표면에 형성되어 일측에 솔더범프가 융착되도록 하는 제2알루미늄층을 포함하여 이루어진 반도체칩의 하부 범프 금속화층 구조.
- 제1항에 있어서, 상기 제2알루미늄층의 표면에는 솔더범프가 융착되도록 랜드가 오픈되어 있고, 나머지 반도체칩의 표면 및 상기 제2알루미늄층의 표면은 보호층으로 코팅된 것을 특징으로 하는 반도체칩의 하부 범프 금속화층 구조.
- 제2항에 있어서, 상기 랜드는 반도체칩의 일면에 풀어레이타입(Full Array Type)으로 형성된 것을 특징으로 하는 반도체칩의 하부 범프 금속화층 구조.
- 제2항 또는 제3항에 있어서, 상기 랜드에는 니켈/바나디엄층 및 구리층의 더 형성된 것을 특징으로 하는 반도체칩의 하부 범프 금속화층 구조.
- 반도체칩의 표면에 형성된 알루미늄 본딩패드에 연결되도록 상기 반도체칩의 표면 전체에 제1알루미늄층을 형성하는 단계와;상기 제1알루미늄층 표면 전체에 니켈/바나디엄층을 형성하는 단계와;상기 니켈/바나디엄층의 표면 전체에 구리층을 형성하는 단계와;상기 구리층의 표면에 제2알루미늄층을 형성하는 단계와;상기 제2알루미늄층의 표면에 일정 패턴이 그려진 포토레지스트를 형성하는 단계와;상기 반도체칩의 표면에 산성용액을 가하여, 소정 패턴이 형성되도록 하는 단계와;상기 포토레지스트를 제거하는 단계와;상기 패턴중 차후 솔더범프가 융착될 랜드를 제외한 전체 표면을 보호층으로 코팅하는 단계를 포함하여 이루어진 반도체칩의 하부 범프 금속화층 제조 방법.
- 제5항에 있어서, 상기 제1알류미늄층, 니켈/바나디엄층, 구리층 및 제2알루미늄층은 각각의 타겟(Target)이 구비된 플라즈마스퍼터링 방식(Plasma Sputtering Process), 무전해도금 방식(Electroless Plating Process), 전해도금 방식(Electro-Plating Process)중 어느 하나에 의해 형성됨을 특징으로 하는 반도체칩의 하부 범프 금속화층 제조 방법.
- 제5항에 있어서, 상기 산성 용액은 통상의 황산, 염산 또는 질산 용액중 선택된 어느 하나인 것을 특징으로 하는 반도체칩의 하부 범프 금속화층 제조 방법.
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Application Number | Priority Date | Filing Date | Title |
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KR1020000086239A KR100694428B1 (ko) | 2000-12-29 | 2000-12-29 | 반도체칩의 하부 범프 금속화층 구조 및 그 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000086239A KR100694428B1 (ko) | 2000-12-29 | 2000-12-29 | 반도체칩의 하부 범프 금속화층 구조 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020058202A KR20020058202A (ko) | 2002-07-12 |
KR100694428B1 true KR100694428B1 (ko) | 2007-03-12 |
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KR1020000086239A KR100694428B1 (ko) | 2000-12-29 | 2000-12-29 | 반도체칩의 하부 범프 금속화층 구조 및 그 제조 방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9601466B2 (en) | 2014-09-04 | 2017-03-21 | Samsung Electronics Co., Ltd. | Semiconductor package and method of manufacturing the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524414A (en) * | 1978-08-09 | 1980-02-21 | Hitachi Ltd | Electrode forming process |
JPS57138160A (en) * | 1981-02-20 | 1982-08-26 | Hitachi Ltd | Formation of electrode |
JPS5815251A (ja) * | 1981-07-20 | 1983-01-28 | Hitachi Ltd | 半導体装置 |
US6111317A (en) * | 1996-01-18 | 2000-08-29 | Kabushiki Kaisha Toshiba | Flip-chip connection type semiconductor integrated circuit device |
-
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- 2000-12-29 KR KR1020000086239A patent/KR100694428B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5524414A (en) * | 1978-08-09 | 1980-02-21 | Hitachi Ltd | Electrode forming process |
JPS57138160A (en) * | 1981-02-20 | 1982-08-26 | Hitachi Ltd | Formation of electrode |
JPS5815251A (ja) * | 1981-07-20 | 1983-01-28 | Hitachi Ltd | 半導体装置 |
US6111317A (en) * | 1996-01-18 | 2000-08-29 | Kabushiki Kaisha Toshiba | Flip-chip connection type semiconductor integrated circuit device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9601466B2 (en) | 2014-09-04 | 2017-03-21 | Samsung Electronics Co., Ltd. | Semiconductor package and method of manufacturing the same |
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KR20020058202A (ko) | 2002-07-12 |
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