JPH0272660A - Semiconductor device - Google Patents

Semiconductor device

Info

Publication number
JPH0272660A
JPH0272660A JP22425788A JP22425788A JPH0272660A JP H0272660 A JPH0272660 A JP H0272660A JP 22425788 A JP22425788 A JP 22425788A JP 22425788 A JP22425788 A JP 22425788A JP H0272660 A JPH0272660 A JP H0272660A
Authority
JP
Japan
Prior art keywords
electromagnetic waves
spiral inductor
semiconductor device
shielding frame
film
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.)
Pending
Application number
JP22425788A
Other languages
Japanese (ja)
Inventor
Akira Takeda
晃 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP22425788A priority Critical patent/JPH0272660A/en
Publication of JPH0272660A publication Critical patent/JPH0272660A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To prevent the adverse effect of generated electromagnetic waves on a neighboring semiconductor device by surrounding a device generating the electromagnetic waves with a shielding frame comprising a conductive material, and covering the upper side with a cap part comprising a conductive material through an insulating film. CONSTITUTION:The surrounding part of a device such as a spiral inductor 12 which generates electromagnetic waves is electromagnetically shielded. Namely, the surrounding part of the spiral inductor 12 comprising an aluminum layer which is formed on an SiO2 film 16 on an Si substrate 10 is surrounded with a shielding frame 14 formed with an aluminum layer. The upper part of the spiral inductor 12 is covered with a cap part 18 comprising an aluminum layer through the SiO2 film 16. Thus a semiconductor device is formed. Since the spiral inductor 12 is surrounded by the shielding frame 14 and the cap part 18 comprising the aluminum film, leakage of the electromagnetic waves are largely decreased even if the electromagnetic waves are generated from the spiral inductor 12, and the adverse effect on a semiconductor device at the surrounding part is prevented.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野] この発明は、半導体基板上に形成されたスパイラルインダクタ等の電磁波を発生する装置からの電磁波を遮断するようにした半導体装置に関する。 【従来の技術】[Industrial application field] The present invention relates to a semiconductor device that blocks electromagnetic waves from a device that generates electromagnetic waves, such as a spiral inductor formed on a semiconductor substrate. [Conventional technology]

例えば特開昭63−48809号、同63−48855
号、同63−48856号公報に開示されるように、半
導体基板上にスパイラルインダクタやコンデンサを形成
した半導体装置がある。
For example, JP-A-63-48809, JP-A-63-48855
As disclosed in No. 63-48856, there is a semiconductor device in which a spiral inductor and a capacitor are formed on a semiconductor substrate.

【発明が解決しようとする課題】[Problem to be solved by the invention]

上記のような、スパイラルインダクタ等を形成した半導
体装置においては、これらから電磁波が発生するので、
隣接する半導体装置に誤動作等の悪影響を及ぼす恐れが
ある。 [発明の目的] この発明は、上記問題点に鑑みてなされたものであって
、半導体基板上に形成された電磁波を発生する装置を電
磁シールドして、発生した電磁波により隣接する半導体
装置に悪影響を及ぼすことを防止した半導体装置を提供
することを目的とする。
In a semiconductor device such as the one described above, in which a spiral inductor or the like is formed, electromagnetic waves are generated from these.
There is a risk of adverse effects such as malfunction on adjacent semiconductor devices. [Purpose of the Invention] The present invention has been made in view of the above-mentioned problems, and includes electromagnetic shielding of a device that generates electromagnetic waves formed on a semiconductor substrate so that the generated electromagnetic waves do not adversely affect adjacent semiconductor devices. It is an object of the present invention to provide a semiconductor device which prevents this from occurring.

【課題を解決するための手段1 この発明は、半導体基板上に形成された電磁波を発生す
る装置の周囲を、導電性物質で形成された遮蔽枠で囲む
と共に、前記電磁波を発生する装置の上側を絶縁膜を介
して導電性物質からなる蓋部により被って半導体装置を
形成し、上記目的を達成するものである。 【作用] この発明において、電磁波を発生する装置の周囲が、導
電性物質で形成された遮蔽枠で囲まれ、且つ、上側は絶
縁膜を介して導電性物質により被われているので、電磁
波を発生する装置からの電磁波が遮蔽され、隣接する半
導体装置に悪影響を及ぼすことが防止される。 (実施例) 以下、本発明の実施例を図面を参照して説明する。 この実施例は、第1図及び第2図に示されるように、3
i基板10上のS! 02膜上に形成されたアルミ1層
からなるスパラルインダクタ12の周囲を、アルミ1層
で形成された遮蔽枠14で囲むと共に、前記スパイラル
インダクタ12の上側をS: 02膜16を介してアル
ミ2層からなる蓋部18により被って、半導体装置を形
成したものである。 前記スパイラルインダクタ12の外周と遮蔽枠14との
間は、5102膜からなる分離領域20とされている。 前記遮蔽枠14及び蓋部18は端子により接地されてい
る。 この実施例においては、スパイラルインダクタ12から
電磁波が発生しても、該スパイラルインダクタ12が、
アルミ膜からなる遮蔽枠14及び蓋部18により囲まれ
ているので、電磁波の漏洩が大幅に低減され、周囲の半
導体装置に悪影響を及ぼすことが防止される。 次に、第3図に示される本発明の第2実施例につき説明
する。 この第2実施例は、n型基板22上に、5h02膜24
を形成すると共に、このSi○2膜24上24上イラル
インダクタ12を形成したものである。 ここで、前記n型基板22における前記スパイラルイン
ダクタ12に対向する上面は、導電領域とされている。 又、この第2実施例においては、遮蔽枠14とP型基盤
22及び蓋部18との間のSi 02膜16.24にス
ルーホール26が形成され、ここに導電体28が設けら
れ、これにより、n型基板22を介して蓋部18及び遮
蔽枠14が接地されている。 この実施例においては、遮蔽枠14及び蓋部18を接地
するための端子が不要となると共に、スパイラルインダ
クタ12を蓋部18とn型基板22の導電領域とで挾み
込むようにしているので、該スパイラルインダクタ12
に発生する電磁波を更に確実に遮蔽することができる。 ここで、上記第2実施例はn型基板22上にスパイラル
インダクタ12を形成したものであるが、これがn型基
板の場合も同様である。 又、前記第1及び第2実施例において、蓋部18はアル
ミ2層から形成されているが、このアルミ2層を他の半
導体装置において、例えばアルミ2層膜に代わってポリ
3i膜を利用する場合は、該蓋部18に該当する部分を
ノンドーピング又は低ドーピングとし、その抵抗値を周
囲と比較して高く設定するとよい。 このように蓋部18の抵抗値を高くすると、該蓋部18
に生じる電磁波に基づく渦電流を効率良く熱に変換して
、電磁波の効果的減衰を図ることができる。 又、上記実施例において、スパイラルインダクタ12は
アルミ1層のみから形成されているが、本発明はこれに
限定されるものでなく、アルミ1層及び2層の2層構成
の場合にも適用されるものである。この場合は、蓋部を
アルミ3層によって構成する。又、アルミ層は導電性物
質であれば他の金属等であってもよい。 なお、上記実施例は、スパイラルインダクタ12を電磁
シールドするものであるが、この発明は、スパイラルイ
ンダクタ以外の、例えばコンデンサ等の、電磁波を発生
する装置について一般的に適用されるものである。 【発明の効果】 本発明は、上記のように構成したので、スパイラルイン
ダクタ等の電磁波を発生する装置の周囲を電磁シールド
して、電磁波の漏洩による隣接する半導体装置の誤動作
等の悪影響を低減させることができるという優れた効果
を有する。
[Means for Solving the Problems 1] The present invention surrounds a device that generates electromagnetic waves formed on a semiconductor substrate with a shielding frame made of a conductive material, and provides an upper surface of the device that generates electromagnetic waves. The above object is achieved by covering the semiconductor device with a lid made of a conductive material via an insulating film to form a semiconductor device. [Function] In this invention, the device that generates electromagnetic waves is surrounded by a shielding frame made of a conductive material, and the upper side is covered with the conductive material via an insulating film, so that the device that generates electromagnetic waves can be protected from electromagnetic waves. Electromagnetic waves generated by the device are shielded, and adverse effects on adjacent semiconductor devices are prevented. (Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In this embodiment, as shown in FIG. 1 and FIG.
S! on the i-board 10! The spiral inductor 12 made of one layer of aluminum formed on the 02 film is surrounded by a shielding frame 14 made of one layer of aluminum, and the upper side of the spiral inductor 12 is covered with aluminum via the S: 02 film 16. A semiconductor device is formed by covering with a lid portion 18 consisting of two layers. Between the outer periphery of the spiral inductor 12 and the shielding frame 14 is a separation region 20 made of 5102 membrane. The shielding frame 14 and the lid portion 18 are grounded through terminals. In this embodiment, even if an electromagnetic wave is generated from the spiral inductor 12, the spiral inductor 12
Since it is surrounded by the shielding frame 14 and the lid part 18 made of an aluminum film, leakage of electromagnetic waves is significantly reduced and adverse effects on surrounding semiconductor devices are prevented. Next, a second embodiment of the present invention shown in FIG. 3 will be described. In this second embodiment, a 5h02 film 24 is formed on an n-type substrate 22.
At the same time, an inductor 12 is formed on the Si2 film 24. Here, the upper surface of the n-type substrate 22 facing the spiral inductor 12 is a conductive region. Further, in this second embodiment, a through hole 26 is formed in the Si 02 film 16.24 between the shielding frame 14, the P-type substrate 22, and the lid part 18, and a conductor 28 is provided therein. Therefore, the lid portion 18 and the shielding frame 14 are grounded via the n-type substrate 22. In this embodiment, there is no need for a terminal for grounding the shielding frame 14 and the lid 18, and the spiral inductor 12 is sandwiched between the lid 18 and the conductive region of the n-type substrate 22. spiral inductor 12
It is possible to more reliably shield electromagnetic waves generated by Here, in the second embodiment, the spiral inductor 12 is formed on an n-type substrate 22, but the same applies when this is an n-type substrate. Further, in the first and second embodiments, the lid portion 18 is formed of two aluminum layers, but this two aluminum layer may be used in other semiconductor devices, for example, by using a poly 3i film instead of the two aluminum layers. In this case, the portion corresponding to the lid portion 18 may be non-doped or lightly doped, and its resistance value may be set higher than that of the surrounding area. When the resistance value of the lid part 18 is increased in this way, the lid part 18
It is possible to efficiently attenuate electromagnetic waves by efficiently converting eddy currents caused by electromagnetic waves into heat. Further, in the above embodiment, the spiral inductor 12 is formed of only one layer of aluminum, but the present invention is not limited to this, and can also be applied to a two-layer structure of one layer and two layers of aluminum. It is something that In this case, the lid is made of three layers of aluminum. Further, the aluminum layer may be made of other metals as long as it is a conductive material. Although the above-described embodiment electromagnetically shields the spiral inductor 12, the present invention is generally applicable to devices other than spiral inductors, such as capacitors, which generate electromagnetic waves. [Effects of the Invention] Since the present invention is configured as described above, it is possible to electromagnetically shield the periphery of a device that generates electromagnetic waves such as a spiral inductor, thereby reducing adverse effects such as malfunction of adjacent semiconductor devices due to leakage of electromagnetic waves. It has the excellent effect of being able to

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係る半導体装置の実施例を示す分解斜
視図、第2図は同実施例の断面図、第3図は本発明の第
2実施例を示す第2図と同様の断面図である。 10・・・3i基板、 12・・・スパイラルインダクタ、 14・・・遮蔽枠、 16・・・5102膜、 18・・・蓋部、 22・・・p型基板、 28・・・導電体。
FIG. 1 is an exploded perspective view showing an embodiment of a semiconductor device according to the present invention, FIG. 2 is a cross-sectional view of the same embodiment, and FIG. 3 is a cross-sectional view similar to FIG. 2 showing a second embodiment of the present invention. It is a diagram. DESCRIPTION OF SYMBOLS 10... 3i substrate, 12... Spiral inductor, 14... Shielding frame, 16... 5102 film, 18... Lid part, 22... P-type substrate, 28... Conductor.

Claims (1)

【特許請求の範囲】[Claims] (1)半導体基板上に形成された電磁波を発生する装置
の周囲を、導電性物質で形成された遮蔽枠で囲むと共に
、前記電磁波を発生する装置の上側を絶縁膜を介して導
電性物質からなる蓋部により被つてなる半導体装置。
(1) A device that generates electromagnetic waves formed on a semiconductor substrate is surrounded by a shielding frame made of a conductive material, and the upper side of the device that generates electromagnetic waves is isolated from the conductive material through an insulating film. A semiconductor device covered by a lid.
JP22425788A 1988-09-07 1988-09-07 Semiconductor device Pending JPH0272660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22425788A JPH0272660A (en) 1988-09-07 1988-09-07 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22425788A JPH0272660A (en) 1988-09-07 1988-09-07 Semiconductor device

Publications (1)

Publication Number Publication Date
JPH0272660A true JPH0272660A (en) 1990-03-12

Family

ID=16810946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22425788A Pending JPH0272660A (en) 1988-09-07 1988-09-07 Semiconductor device

Country Status (1)

Country Link
JP (1) JPH0272660A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655195A1 (en) * 1989-11-24 1991-05-31 Mitsubishi Electric Corp Device with semi-conductors including screening against electromagnetic radiation and method of fabrication
US5256590A (en) * 1989-11-24 1993-10-26 Mitsubishi Denki Kabushiki Kaisha Method of making a shielded semiconductor device
US5844299A (en) * 1997-01-31 1998-12-01 National Semiconductor Corporation Integrated inductor
US6201289B1 (en) * 1999-08-12 2001-03-13 United Microelectronics Corp. Method of manufacturing an inductor
US6326314B1 (en) 1997-09-18 2001-12-04 National Semiconductor Corporation Integrated inductor with filled etch
EP1168442A2 (en) * 2000-06-20 2002-01-02 Koninklijke Philips Electronics N.V. Integrated circuit with high-Q inductor and high compactness
US20100059853A1 (en) * 2008-09-05 2010-03-11 Stats Chippac, Ltd. Semiconductor Device and Method of Forming Shielding Layer over Integrated Passive Device Using Conductive Channels
US7919836B2 (en) 2007-03-01 2011-04-05 Renesas Electronics Corporation Semiconductor device
EP2711985A2 (en) 2012-09-19 2014-03-26 Renesas Electronics Corporation Semiconductor device

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256590A (en) * 1989-11-24 1993-10-26 Mitsubishi Denki Kabushiki Kaisha Method of making a shielded semiconductor device
FR2655195A1 (en) * 1989-11-24 1991-05-31 Mitsubishi Electric Corp Device with semi-conductors including screening against electromagnetic radiation and method of fabrication
US5844299A (en) * 1997-01-31 1998-12-01 National Semiconductor Corporation Integrated inductor
US6326314B1 (en) 1997-09-18 2001-12-04 National Semiconductor Corporation Integrated inductor with filled etch
US6201289B1 (en) * 1999-08-12 2001-03-13 United Microelectronics Corp. Method of manufacturing an inductor
EP1168442A2 (en) * 2000-06-20 2002-01-02 Koninklijke Philips Electronics N.V. Integrated circuit with high-Q inductor and high compactness
EP1168442A3 (en) * 2000-06-20 2002-05-02 Koninklijke Philips Electronics N.V. Integrated circuit with high-Q inductor and high compactness
CN100372120C (en) * 2000-06-20 2008-02-27 Nxp股份有限公司 Ultra-small integrated circuit of inductive component including high quality factor
US8575730B2 (en) 2007-03-01 2013-11-05 Renesas Electronics Corporation Semiconductor device
US7919836B2 (en) 2007-03-01 2011-04-05 Renesas Electronics Corporation Semiconductor device
US8258605B2 (en) 2007-03-01 2012-09-04 Renesas Electronics Corporation Semiconductor device
US20100059853A1 (en) * 2008-09-05 2010-03-11 Stats Chippac, Ltd. Semiconductor Device and Method of Forming Shielding Layer over Integrated Passive Device Using Conductive Channels
US9324700B2 (en) * 2008-09-05 2016-04-26 Stats Chippac, Ltd. Semiconductor device and method of forming shielding layer over integrated passive device using conductive channels
US10211183B2 (en) 2008-09-05 2019-02-19 STATS ChipPAC Pte. Ltd. Semiconductor device and method of forming shielding layer over integrated passive device using conductive channels
EP2711985A2 (en) 2012-09-19 2014-03-26 Renesas Electronics Corporation Semiconductor device
JP2014060332A (en) * 2012-09-19 2014-04-03 Renesas Electronics Corp Semiconductor device
US8907460B2 (en) 2012-09-19 2014-12-09 Renesas Electronics Corporation Semiconductor device
US9245840B2 (en) 2012-09-19 2016-01-26 Renesas Elecronics Corporation Semiconductor device having an inductor surrounds the internal circuit

Similar Documents

Publication Publication Date Title
US4218578A (en) RF Shield for an electronic component
KR920015590A (en) CCD imager
JPH0272660A (en) Semiconductor device
US5831324A (en) Electromagnetic wave suppression method in a semiconductor manufacturing process
JPH1187977A (en) Electrical circuit constitution arranged in casing
JP4086963B2 (en) Power module
JP2870162B2 (en) Semiconductor device and manufacturing method thereof
JPH0580153B2 (en)
JP3016663B2 (en) Semiconductor device
JP4402944B2 (en) Semiconductor protection device
KR0136730B1 (en) Jp/ semiconductor device
JPS607741A (en) Hybrid integrated circuit device
JP2993456B2 (en) Semiconductor device and manufacturing method thereof
KR0125583Y1 (en) Semiconductor device
JPS63202941A (en) Wiring path for semiconductor device
JPH03222467A (en) Semiconductor integrated circuit device
JPH1051181A (en) Electronic device package
JPS6045038A (en) Semiconductor device
JPS61147720A (en) Electric apparatus
JPH08255873A (en) Semiconductor integrated circuit device
JPH0634474B2 (en) Circuit board with electromagnetic shield function
JPH0653686A (en) Shield film
JPH01146340A (en) Solid state image sensing device
JPS63151062A (en) Input protecting circuit
JPS6045039A (en) Semiconductor device