KR101175393B1 - 웨이퍼 비아 형성 - Google Patents
웨이퍼 비아 형성 Download PDFInfo
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- KR101175393B1 KR101175393B1 KR1020097007578A KR20097007578A KR101175393B1 KR 101175393 B1 KR101175393 B1 KR 101175393B1 KR 1020097007578 A KR1020097007578 A KR 1020097007578A KR 20097007578 A KR20097007578 A KR 20097007578A KR 101175393 B1 KR101175393 B1 KR 101175393B1
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- processed wafer
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000000151 deposition Methods 0.000 claims abstract description 11
- 238000007747 plating Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 4
- 238000001312 dry etching Methods 0.000 claims description 2
- 238000001039 wet etching Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 5
- 239000002184 metal Substances 0.000 abstract description 7
- 235000012431 wafers Nutrition 0.000 description 75
- 238000001465 metallisation Methods 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000012212 insulator Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
Claims (20)
- 처리된 웨이퍼에 전기 전도성 비아를 형성하는 방법에 있어서,상기 처리된 웨이퍼의 후방에 제1 트렌치를 형성하는 단계;단면 영역을 구비하는 제2 트렌치를 상기 제1 트렌치의 종단면(end surface) 내에 형성하는 단계;상기 제2 트렌치의 종단면으로부터 연장하는 비아를 상기 처리된 웨이퍼의 후방으로 제1 미리 결정된 깊이까지 형성하는 단계로서, 상기 비아는 상기 제2 트렌치의 단면 영역보다 작은 단면 영역을 구비하는 것인, 상기 비아 형성 단계;상기 제1 미리 결정된 깊이와 상기 제2 트렌치의 종단면 사이의 상기 비아 전체 길이(full length) 위에 씨드층을 증착하는 단계;상기 비아를 전기 전도성 물질로 채우기 위해 상기 씨드층에 대해 도금 공정을 수행하는 단계;적어도 상기 제2 트렌치가 형성된 후에, 상기 처리된 웨이퍼의 후방을 얇게 하는 단계; 및상기 처리된 웨이퍼의 후방을 얇게 한 후에, 상기 제2 트렌치 내에 전도체를 증착하는 단계를 포함하는 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 제1 트렌치를 형성하는 단계 또는 상기 제2 트렌치를 형성하는 단계 중 적어도 하나의 단계는, 습식 식각 공정 또는 건식 식각 공정 중 적어도 하나의 공정을 이용하여, 상기 처리된 웨이퍼의 후방을 식각하는 단계를 포함하는 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 처리된 웨이퍼의 후방 내에 상기 제1 트렌치 외의 하나 이상의 트렌치를 형성하는 단계를 더 포함하고,상기 하나 이상의 트렌치 및 상기 제1 트렌치는 트렌치 영역을 정의하고, 상기 트렌치 영역은 상기 처리된 웨이퍼의 후방의 전체 면적의 75% 미만인 것인 전기 전도성 비아 형성 방법.
- 제3항에 있어서,상기 트렌치 영역은 상기 처리된 웨이퍼의 후방의 전체 영역의 50% 미만인 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서, 상기 전도체는 상기 제2 트렌치를 채우는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서, 상기 제2 트렌치 내에 전도체를 증착하는 단계는,컨택 패드 형성 공정의 일부로서 상기 제2 트렌치 내에 상기 전도체를 증착하는 단계를 포함하는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 제1 트렌치는 제1 주변부를 구비하고, 상기 제2 트렌치는 제2 주변부를 구비하며, 상기 제2 트렌치는 상기 제1 주변부 내에 형성되는 것인 전기 전도성 비아 형성 방법.
- 제7항에 있어서, 상기 제1 및 제2 주변부는,상기 비아가 상기 전체 길이 위에 상기 씨드층과 증착되고 상기 전기 전도성 물질로 채워지도록 선택되는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 처리된 웨이퍼는 복수의 칩들을 포함하고,상기 방법은 상기 복수의 칩들 중 하나 이상의 칩들의 외부 경계를 넘는 트렌치 영역에 대한 주변부를 정의하는 단계를 더 포함하는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서, 상기 처리된 웨이퍼의 후방을 얇게 하는 단계는,상기 비아 내의 상기 전기 전도성 물질을 노출시키는 단계를 포함하는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 처리된 웨이퍼는 복수의 칩들을 포함하고,상기 방법은 적어도 부분적으로 상기 복수의 칩들 중 하나의 칩의 외부 경계 내에 있는 트렌치 영역에 대한 주변부를 정의하는 단계를 더 포함하는 것인 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 처리된 웨이퍼는 복수의 칩들을 포함하고,상기 방법은 상기 복수의 칩들 중 하나의 칩과 정렬되는 트렌치 영역을 정의하는 단계를 더 포함하며,상기 트렌치 영역은 상기 복수의 칩들 중 상기 하나의 칩 보다 더 큰 크기를 갖는 것인 전기 전도성 비아를 형성하는 방법.
- 제10항에 있어서,상기 처리된 웨이퍼의 후방을 얇게 하는 단계 이후, 상기 처리된 웨이퍼로부터 칩을 소잉(sawing) 또는 다이싱(dicing)하는 단계를 더 포함하는 것을 특징으로 하는 전기 전도성 비아 형성 방법.
- 제1항에 있어서,상기 제1 트렌치는 제1 트렌치 영역을 정의하는 주변 경계를 구비하고,상기 제2 트렌치는 상기 제 1 트렌치 영역 내에 형성되는 것인 전기 전도성 비아 형성 방법.
- 제14항에 있어서,상기 비아 형성 단계는, 상기 제 2 트렌치의 주변 경계 내에 상기 비아를 형성하는 단계를 포함하는 것인 전기 전도성 비아 형성 방법.
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82977206P | 2006-10-17 | 2006-10-17 | |
US60/829,772 | 2006-10-17 |
Publications (2)
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KR20090076914A KR20090076914A (ko) | 2009-07-13 |
KR101175393B1 true KR101175393B1 (ko) | 2012-08-20 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020097007578A KR101175393B1 (ko) | 2006-10-17 | 2007-10-15 | 웨이퍼 비아 형성 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7871927B2 (ko) |
EP (1) | EP2074647B1 (ko) |
JP (1) | JP5269799B2 (ko) |
KR (1) | KR101175393B1 (ko) |
CN (1) | CN101553903B (ko) |
WO (1) | WO2008048925A2 (ko) |
Families Citing this family (7)
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US8486805B2 (en) * | 2011-03-04 | 2013-07-16 | Institute of Microelectronics, Chinese Academy of Sciences | Through-silicon via and method for forming the same |
WO2012119333A1 (zh) * | 2011-03-04 | 2012-09-13 | 中国科学院微电子研究所 | 穿硅通孔结构及其形成方法 |
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- 2007-10-15 CN CN2007800375496A patent/CN101553903B/zh not_active Expired - Fee Related
- 2007-10-15 EP EP07844296A patent/EP2074647B1/en not_active Not-in-force
- 2007-10-15 WO PCT/US2007/081380 patent/WO2008048925A2/en active Application Filing
- 2007-10-15 US US11/872,083 patent/US7871927B2/en not_active Expired - Fee Related
- 2007-10-15 KR KR1020097007578A patent/KR101175393B1/ko not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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CN101553903B (zh) | 2012-08-29 |
CN101553903A (zh) | 2009-10-07 |
EP2074647A4 (en) | 2010-07-28 |
US7871927B2 (en) | 2011-01-18 |
US20080090413A1 (en) | 2008-04-17 |
WO2008048925A2 (en) | 2008-04-24 |
KR20090076914A (ko) | 2009-07-13 |
EP2074647A2 (en) | 2009-07-01 |
JP5269799B2 (ja) | 2013-08-21 |
WO2008048925A3 (en) | 2008-07-03 |
JP2010507260A (ja) | 2010-03-04 |
EP2074647B1 (en) | 2012-10-10 |
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