JP4464127B2 - 半導体集積回路及びその製造方法 - Google Patents
半導体集積回路及びその製造方法 Download PDFInfo
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- JP4464127B2 JP4464127B2 JP2003425951A JP2003425951A JP4464127B2 JP 4464127 B2 JP4464127 B2 JP 4464127B2 JP 2003425951 A JP2003425951 A JP 2003425951A JP 2003425951 A JP2003425951 A JP 2003425951A JP 4464127 B2 JP4464127 B2 JP 4464127B2
- Authority
- JP
- Japan
- Prior art keywords
- inductor
- layer
- ferromagnetic material
- substrate
- integrated circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004065 semiconductor Substances 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000003302 ferromagnetic material Substances 0.000 claims description 79
- 239000000758 substrate Substances 0.000 claims description 53
- 230000005294 ferromagnetic effect Effects 0.000 claims description 42
- 239000010949 copper Substances 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 35
- 229910052751 metal Inorganic materials 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000000059 patterning Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 19
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000010408 film Substances 0.000 description 6
- 238000001039 wet etching Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 230000002500 effect on skin Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/10—Inductors
-
- 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
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5227—Inductive arrangements or effects of, or between, wiring layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
- H01F41/046—Printed circuit coils structurally combined with ferromagnetic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3011—Impedance
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Coils Or Transformers For Communication (AREA)
- Semiconductor Integrated Circuits (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
2、4;絶縁層
3;インダクタ
3a、5、8;配線
6、7;ビア
9、12;TiW層
10、11;Cu層
13;内部領域
14;積層体
15;強磁性体
16;絶縁層
17;配線本体層
18;レジスト
18a;開口部
50;半導体基板
51、53;強磁性体
52;面方向
54;高さ方向
101;多層配線層
102;最上層
103;インダクタ
104、105、106;絶縁層
107;配線本体層
108;TiW層
a;幅
b;高さ
Claims (14)
- 基板上に設けられたインダクタと、前記基板の表面に垂直な方向から見て前記インダクタの内部に相当する領域に設けられた強磁性体と、前記インダクタの内部に相当する領域における前記強磁性体の下方に設けられた第1の金属層と、前記強磁性体の上面及び側面を覆うように設けられた第2の金属層と、を有し、前記強磁性体における前記基板の表面に垂直な方向の長さが、前記強磁性体における前記基板の表面に平行な方向の長さ以上であることを特徴とする半導体集積回路。
- 前記強磁性体における前記基板の表面に垂直な方向の長さが、前記強磁性体における前記基板の表面に平行な方向の長さの2倍以上であることを特徴とする請求項1に記載の半導体集積回路。
- 前記強磁性体が複数個設けられていることを特徴とする請求項1又は2に記載の半導体集積回路。
- 前記複数個の強磁性体がマトリクス状に配列されていることを特徴とする請求項3に記載の半導体集積回路。
- 前記基板上に多層配線層が設けられており、前記強磁性体が前記多層配線層上に形成されており、前記インダクタが前記多層配線層の最上層に形成されていることを特徴とする請求項1乃至4のいずれか1項に記載の半導体集積回路。
- 前記基板上に多層配線層が設けられており、前記強磁性体及び前記インダクタが前記多層配線層上に形成されていることを特徴とする請求項1乃至4のいずれか1項に記載の半導体集積回路。
- 前記第2の金属層の上面が前記インダクタの上面よりも高い位置にあることを特徴とする請求項1乃至6のいずれか1項に記載の半導体集積回路。
- 前記インダクタが前記第1の金属層に前記第2の金属層が積層されたものであることを特徴とする請求項1乃至7のいずれか1項に記載の半導体集積回路。
- 前記インダクタ、前記第1の金属層及び前記第2の金属層が銅又はアルミニウムにより形成されていることを特徴とする請求項1乃至8のいずれか1項に記載の半導体集積回路。
- 前記強磁性体がニッケルにより形成されていることを特徴とする請求項1乃至9のいずれか1項に記載の半導体集積回路。
- 前記インダクタがスパイラルインダクタであることを特徴とする請求項1乃至10のいずれか1項に記載の半導体集積回路。
- 基板上に第1の金属層を形成する工程と、この第1の金属層上に選択的に前記基板の表面に垂直な方向の長さが前記基板の表面に平行な方向の長さ以上である強磁性体を形成する工程と、この強磁性体を覆うように第2の金属層を形成する工程と、前記第1及び第2の金属層を選択的に除去してパターニングし、前記第1の金属層、前記強磁性体及び前記第2の金属層が積層された積層体を形成すると共にこの積層体と同層でありこの積層体を囲むように配置されたインダクタを形成する工程と、を有することを特徴とする半導体集積回路の製造方法。
- 基板上にインダクタを形成する工程と、前記基板上におけるこの基板の表面に垂直な方向から見て前記インダクタの内部に相当する領域に第1の金属層を形成する工程と、この第1の金属層上に前記基板の表面に垂直な方向の長さが前記基板の表面に平行な方向の長さ以上である強磁性体を形成する工程と、この強磁性体を覆うように第2の金属層を形成する工程と、前記第1及び第2の金属層を選択的に除去してパターニングし、前記第1の金属層、前記強磁性体及び前記第2の金属層が積層された積層体を形成する工程と、を有することを特徴とする半導体集積回路の製造方法。
- 前記強磁性体を形成する工程において、前記強磁性体における前記基板の表面に垂直な方向の長さを、前記強磁性体における前記基板の表面に平行な方向の長さの2倍以上とすることを特徴とする請求項12又は13に記載の半導体集積回路の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003425951A JP4464127B2 (ja) | 2003-12-22 | 2003-12-22 | 半導体集積回路及びその製造方法 |
US11/017,074 US7414506B2 (en) | 2003-12-22 | 2004-12-21 | Semiconductor integrated circuit and fabrication method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003425951A JP4464127B2 (ja) | 2003-12-22 | 2003-12-22 | 半導体集積回路及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005183846A JP2005183846A (ja) | 2005-07-07 |
JP4464127B2 true JP4464127B2 (ja) | 2010-05-19 |
Family
ID=34675442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003425951A Expired - Fee Related JP4464127B2 (ja) | 2003-12-22 | 2003-12-22 | 半導体集積回路及びその製造方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7414506B2 (ja) |
JP (1) | JP4464127B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7917178B2 (en) * | 2005-03-22 | 2011-03-29 | Sony Ericsson Mobile Communications Ab | Wireless communications device with voice-to-text conversion |
US7875955B1 (en) * | 2006-03-09 | 2011-01-25 | National Semiconductor Corporation | On-chip power inductor |
US20080186123A1 (en) * | 2007-02-07 | 2008-08-07 | Industrial Technology Research Institute | Inductor devices |
US9269485B2 (en) * | 2007-11-29 | 2016-02-23 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of creating spiral inductor having high Q value |
US20090140383A1 (en) * | 2007-11-29 | 2009-06-04 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of creating spiral inductor having high q value |
JP5113025B2 (ja) * | 2008-11-21 | 2013-01-09 | 新光電気工業株式会社 | コイル構造体及びその製造方法 |
US9190201B2 (en) * | 2009-03-04 | 2015-11-17 | Qualcomm Incorporated | Magnetic film enhanced inductor |
US8717136B2 (en) | 2012-01-10 | 2014-05-06 | International Business Machines Corporation | Inductor with laminated yoke |
US9064628B2 (en) | 2012-05-22 | 2015-06-23 | International Business Machines Corporation | Inductor with stacked conductors |
US8963671B2 (en) | 2012-08-31 | 2015-02-24 | Advanced Semiconductor Engineering, Inc. | Semiconductor transformer device and method for manufacturing the same |
US10312007B2 (en) * | 2012-12-11 | 2019-06-04 | Intel Corporation | Inductor formed in substrate |
KR102504067B1 (ko) * | 2017-12-07 | 2023-02-27 | 삼성전기주식회사 | 박막형 코일 부품 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0719877B2 (ja) | 1985-01-10 | 1995-03-06 | 松下電子工業株式会社 | 半導体集積回路 |
JPH0328758U (ja) | 1989-07-28 | 1991-03-22 | ||
JPH0463653U (ja) | 1990-10-12 | 1992-05-29 | ||
JP3197022B2 (ja) * | 1991-05-13 | 2001-08-13 | ティーディーケイ株式会社 | ノイズサプレッサ用積層セラミック部品 |
JPH0513235A (ja) * | 1991-07-03 | 1993-01-22 | Sumitomo Electric Ind Ltd | インダクタンス素子 |
JPH0513234A (ja) * | 1991-07-03 | 1993-01-22 | Sumitomo Electric Ind Ltd | インダクタンス素子 |
CA2072277A1 (en) * | 1991-07-03 | 1993-01-04 | Nobuo Shiga | Inductance element |
US5312674A (en) * | 1992-07-31 | 1994-05-17 | Hughes Aircraft Company | Low-temperature-cofired-ceramic (LTCC) tape structures including cofired ferromagnetic elements, drop-in components and multi-layer transformer |
US5852866A (en) * | 1996-04-04 | 1998-12-29 | Robert Bosch Gmbh | Process for producing microcoils and microtransformers |
US5945902A (en) * | 1997-09-22 | 1999-08-31 | Zefv Lipkes | Core and coil structure and method of making the same |
US6198374B1 (en) * | 1999-04-01 | 2001-03-06 | Midcom, Inc. | Multi-layer transformer apparatus and method |
JP2002043520A (ja) * | 2000-07-19 | 2002-02-08 | Sony Corp | 半導体装置及びその製造方法 |
JP2003158017A (ja) * | 2001-11-21 | 2003-05-30 | Jhc Osaka:Kk | トランス |
JP3745316B2 (ja) * | 2002-06-24 | 2006-02-15 | Necエレクトロニクス株式会社 | 半導体集積回路及びその製造方法 |
JP4191506B2 (ja) * | 2003-02-21 | 2008-12-03 | Tdk株式会社 | 高密度インダクタおよびその製造方法 |
US7262680B2 (en) * | 2004-02-27 | 2007-08-28 | Illinois Institute Of Technology | Compact inductor with stacked via magnetic cores for integrated circuits |
-
2003
- 2003-12-22 JP JP2003425951A patent/JP4464127B2/ja not_active Expired - Fee Related
-
2004
- 2004-12-21 US US11/017,074 patent/US7414506B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7414506B2 (en) | 2008-08-19 |
JP2005183846A (ja) | 2005-07-07 |
US20050134419A1 (en) | 2005-06-23 |
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