JP6536768B1 - Esd保護素子 - Google Patents
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- 239000004020 conductor Substances 0.000 claims abstract description 363
- 239000000758 substrate Substances 0.000 claims abstract description 96
- 239000004065 semiconductor Substances 0.000 claims abstract description 91
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims description 74
- 239000011229 interlayer Substances 0.000 claims description 40
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000036961 partial effect Effects 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- H01F17/0006—Printed inductances
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- H01F27/00—Details of transformers or inductances, in general
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- H01F27/2804—Printed windings
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- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- 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
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- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/64—Impedance arrangements
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0255—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using diodes as protective elements
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0288—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using passive elements as protective elements, e.g. resistors, capacitors, inductors, spark-gaps
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/866—Zener diodes
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- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
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- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1203—Rectifying Diode
- H01L2924/12035—Zener diode
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- H—ELECTRICITY
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- H01L2924/1206—Inductor
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- Condensed Matter Physics & Semiconductors (AREA)
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- Computer Hardware Design (AREA)
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- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
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Abstract
Description
まず、図5を用いて、ESD保護素子10の回路構成について説明する。図5に示すように、ESD保護素子10は、インダクタL1、インダクタL2、および、サージ吸収素子TVS(Transient Voltage Suppressor)を備える。ツェナーダイオードは、サージ吸収素子TVSに含まれている。ESD保護素子10は、第1外部接続端子P1、第2外部接続端子P2、および、第3外部接続端子P3を備える。
図1(A)、図1(B)、図2、図3(A)、図3(B)、図3(C)、図4(A)、図4(B)、図4(C)に示すように、構造としては、ESD保護素子10は、半導体基板20、および、配線層30を備える。
本願構成のように、第2インダクタ導体42の外周側に、第1インダクタ導体41が配置される構成では、第1インダクタ導体41の開口が第2インダクタ導体42の開口より広くなる。この場合、第1インダクタ導体41の幅と第2インダクタ導体42の幅とが同じであると、第1インダクタ導体41のインダクタンス(インダクタL1のインダクタンス)は、第2インダクタ導体42のインダクタンス(インダクタL2のインダクタンス)よりも大きくなる。
20、20A、20B、20C:半導体基板
21:Psub層
22:Nエピ層
23:Nエピ層
30、30C:配線層
40、40A、40B:インダクタ導体
A40:中央開口
41:第1インダクタ導体
42:第2インダクタ導体
50:配線導体
61、62、71、72、73、601、602:層間接続導体
81、82、83:配線導体
201:端子形成面
202:半導体基板裏面
211:パッシベーション層
221、222、225、226、227:NBL
231、232:P型ドーピング部
241、242:N型ドーピング部
251、252、253、254、255、256、257:トレンチ
261:第1端子導体
262:第2端子導体
301、302、303、304:絶縁層
410、410A、410B:接続導体部
411:第1インダクタ導体の第1端部
412:第1インダクタ導体の第2端部
421:第2インダクタ導体の第1端
422:第2インダクタ導体の第2端
811、821、831:金属メッキ
812、822、832:開口部
A40、A40A:中央開口
C412:角部
D11、D12、D21、D22:ダイオード
L1:インダクタ
L2:インダクタ
P1:第1外部接続端子
P2:第2外部接続端子
P3:第3外部接続端子
Pt1、Pt2:端子
TVS:サージ吸収素子
ZD1、ZD2:ツェナーダイオード
Claims (8)
- 半導体領域を有し、前記半導体領域にサージ吸収素子が形成された基板と、
前記基板上に形成された配線層と、
前記配線層に形成され、外周端と内周端とを有するスパイラル形状のインダクタ導体と、
前記配線層上に形成された第1外部端子導体、第2外部端子導体、および、第3外部端子導体と、
を備え、
前記インダクタ導体は、前記外周端を含む外周側に配置された第1インダクタ導体と、前記内周端を含む内周側に配置された第2インダクタ導体と、第1インダクタ導体と第2インダクタ導体とを接続する接続導体部とを有し、
前記インダクタ導体の前記外周端は、前記第1外部端子導体に接続され、
前記インダクタ導体の前記内周端は、前記第2外部端子導体に接続され、さらに、
前記インダクタ導体の前記接続導体部は、前記サージ吸収素子を介して、前記第3外部端子導体に接続されており、
前記第2インダクタ導体の幅は、前記第1インダクタ導体の幅よりも小さい、
ESD保護素子。 - 前記基板は、第1端子導体及び第2端子導体が形成された、端子形成面を有するとともに、
前記第1端子導体は前記サージ吸収素子の第1端に接続され、
前記第2端子導体は前記サージ吸収素子の第2端に接続される、
請求項1に記載のESD保護素子。 - 前記インダクタ導体の前記外周端と前記第1外部端子導体とを接続する第1層間接続導体と、
前記インダクタ導体の前記内周端と前記第2外部端子導体とを接続する第2層間接続導体と、
前記接続導体部と前記第1端子導体とを接続する第3層間接続導体と、
前記第2端子導体と前記第3外部端子導体とを接続する第4層間接続導体と、
を備える、
請求項2に記載のESD保護素子。 - 前記サージ吸収素子は、ツェナーダイオードを含む、
請求項1乃至請求項3のいずれかに記載のESD保護素子。 - 前記接続導体部の幅は、前記第1インダクタ導体の幅よりも大きい、
請求項1乃至請求項4のいずれかに記載のESD保護素子。 - 前記スパイラル形状は、角部を有する形状であり、
前記接続導体部は、前記角部に配置されている、
請求項1乃至請求項5のいずれかに記載のESD保護素子。 - 前記スパイラル形状は、屈曲部または腕曲部を有する形状であり、
前記接続導体部は、前記屈曲部または前記腕曲部に配置されている、
請求項1乃至請求項5のいずれかに記載のESD保護素子。 - 前記インダクタ導体と前記基板の間には、複数の絶縁層が配置されている、
請求項1乃至請求項7のいずれかに記載のESD保護素子。
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JP2018078062 | 2018-04-16 | ||
JP2018078062 | 2018-04-16 | ||
PCT/JP2018/045431 WO2019202774A1 (ja) | 2018-04-16 | 2018-12-11 | Esd保護素子 |
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WO2019031036A1 (ja) * | 2017-08-10 | 2019-02-14 | 株式会社村田製作所 | Esd保護デバイス、および、信号伝送線路 |
US11936178B2 (en) * | 2020-09-21 | 2024-03-19 | Infineon Technologies Ag | ESD protection device with reduced harmonic distortion |
CN113130477B (zh) * | 2021-03-30 | 2022-10-14 | 杭州士兰集成电路有限公司 | 瞬间电压抑制器件及其制造方法 |
US20230326918A1 (en) * | 2022-04-12 | 2023-10-12 | Ancora Semiconductors Inc. | Package structures |
Citations (4)
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JPH07272136A (ja) * | 1994-03-25 | 1995-10-20 | Toyo Alum Kk | 共鳴ラベル |
JP2005101097A (ja) * | 2003-09-22 | 2005-04-14 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2009272360A (ja) * | 2008-05-01 | 2009-11-19 | Panasonic Corp | インダクタおよびその製造方法 |
JP2013522955A (ja) * | 2010-04-07 | 2013-06-13 | ザイリンクス インコーポレイテッド | 積層二重インダクタ構造 |
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KR100869741B1 (ko) * | 2006-12-29 | 2008-11-21 | 동부일렉트로닉스 주식회사 | 나선형 인덕터 |
KR101373540B1 (ko) * | 2010-05-17 | 2014-03-12 | 다이요 유덴 가부시키가이샤 | 기판 내장용 전자 부품 및 부품 내장형 기판 |
US8999807B2 (en) * | 2010-05-27 | 2015-04-07 | Semiconductor Components Industries, Llc | Method for manufacturing a semiconductor component that includes a common mode choke and structure |
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US20170236790A1 (en) * | 2016-02-12 | 2017-08-17 | Semtech Corporation | Semiconductor Device on Leadframe with Integrated Passive Component |
JP6222410B1 (ja) | 2016-03-15 | 2017-11-01 | 株式会社村田製作所 | Esd保護回路、差動伝送線路、コモンモードフィルタ回路、esd保護デバイスおよび複合デバイス |
CN208143194U (zh) | 2016-07-06 | 2018-11-23 | 株式会社村田制作所 | 带有esd保护功能的电感器 |
JP6800783B2 (ja) * | 2017-03-10 | 2020-12-16 | 株式会社豊田中央研究所 | 保護装置 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH07272136A (ja) * | 1994-03-25 | 1995-10-20 | Toyo Alum Kk | 共鳴ラベル |
JP2005101097A (ja) * | 2003-09-22 | 2005-04-14 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2009272360A (ja) * | 2008-05-01 | 2009-11-19 | Panasonic Corp | インダクタおよびその製造方法 |
JP2013522955A (ja) * | 2010-04-07 | 2013-06-13 | ザイリンクス インコーポレイテッド | 積層二重インダクタ構造 |
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