JP4458112B2 - 半導体装置の製造方法、それを用いた半導体装置及びプラズマパネルディスプレイ - Google Patents
半導体装置の製造方法、それを用いた半導体装置及びプラズマパネルディスプレイ Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 124
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 239000000758 substrate Substances 0.000 claims description 44
- 239000012535 impurity Substances 0.000 claims description 35
- 238000005468 ion implantation Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000002513 implantation Methods 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 description 34
- 238000009826 distribution Methods 0.000 description 15
- 235000012431 wafers Nutrition 0.000 description 11
- 108091006146 Channels Proteins 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 108010075750 P-Type Calcium Channels Proteins 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- -1 phosphorus ions Chemical class 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7394—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET on an insulating layer or substrate, e.g. thin film device or device isolated from the bulk substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0873—Drain regions
- H01L29/0878—Impurity concentration or distribution
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66234—Bipolar junction transistors [BJT]
- H01L29/66325—Bipolar junction transistors [BJT] controlled by field-effect, e.g. insulated gate bipolar transistors [IGBT]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/7824—Lateral DMOS transistors, i.e. LDMOS transistors with a substrate comprising an insulating layer, e.g. SOI-LDMOS transistors
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- Power Engineering (AREA)
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
p+ 層に接したソース電極106と、パンチスルーストッパー層内に表面から形成されたドレインn+ 層105と、ドレインn+ 層に接続されたドレイン電極107と、ソース
n+ 層,チャネル層,ドリフト層の上部にまたがって形成されたゲート電極108から構成されている。ここで活性Si層内でチャネル層、パンチスルーストッパー層が形成されていない領域は高耐圧素子の耐圧の主な部分を分担するドリフト層となるが、この領域の基板深さ方向の不純物分布を図1(b)に示している。
2E14cm-3以下の高抵抗のp型もしくはn型のものを使用して、そこにイオン注入法により図2に示す方法で不純物を導入するものである。図2はこのドリフト層の不純物導入にかかわる工程を示している。本発明で耐圧が数10V〜500Vまでの素子を形成する場合で、p型のSOI基板を用いる場合を例にとると、図2(a)に示すように、p型の高抵抗のSOI基板に、SOI基板の表面からイオン注入法によりウエハ全面に2MeV程度もしくはそれ以上の高エネルギーイオン注入法により射影飛程がおよそ1μmのリン(P)イオンを0.5E12cm-2 〜3E12cm-2程度の面密度で注入する。そのときの不純物分布を図2(b)に示す。
130にはソース電極129が備えられ、ゲート電極127が構成されているものである。
133とコンタクトp+ 層139、n+ 層とp+ 層に接したエミッタ電極136と、パンチスルーストッパー層内に表面から形成されたコレクタp+ 層135と、コレクタp+ 層135に接続されたコレクタ電極137と、n+ 層,チャネル層,ドリフト層の上部にまたがって形成されたゲート電極138から構成されている。ここで活性Si層内でチャネル層,パンチスルーストッパー層が形成されていない領域は高耐圧素子の耐圧の主な部分を分担するドリフト層となるが、この領域の基板深さ方向の不純物分布を図3(b)に示している。
Si基板150のある一方の面から、イオン注入法によりウエハ全面にPイオンを注入し、熱処理により活性化と熱拡散を施す。図にはこのときのPの分布を併せて示している。その後、図4(b)に示すように上記のSi基板150を、表面に酸化膜151を設けたシリコン支持基板152と張り合わせ、熱処理し接合させる。なお、このとき酸化膜151はSi基板150に設けてもかまわない。さらにSi基板150をPイオンを注入した反対側の表面から4μm〜10数μmまで研削することでSi基板150をSOI層とするSOI基板が形成できる。このようにして形成したSOI基板の表面に拡散層や、ゲート電極,電極,配線等を形成し、図3に示すような高耐圧の素子を製造することが実現できる。
(a)と同一の構成を備えており、図5(b)にドリフト層不純物分布を示している。
図6は本発明の半導体装置の製造法による半導体装置によって電力変換装置であるプラズマパネルディスプレイを構成した例である。
180を構成している。そして、このプラズマパネルユニット180ではアドレスIC
176,スキャンIC173,サステイン回路174,175の各部に100V〜600V程度の耐圧の半導体装置を使用しているが、本発明により小型で損失の低い半導体装置を用いることで、複数使われる半導体装置の集積化や、機能の異なる半導体装置の統合などによる小型化や、電力変換効率である発光効率の改善が可能となる。
102,132,162 チャネル層
103,133,163 ソースn+ 層
104,134,164 パンチスルーストッパー層
105 ドレインn+ 層
106,129 ソース電極
107,126 ドレイン電極
108,127,138,168 ゲート電極
109,139,169 コンタクトp+ 層
110,121,140,151,170 酸化膜
111,122,141,152,171 支持基板
123 素子分離酸化膜
124 ウエル層
125 ドレイン層
128 ソース層
130 pウエルコンタクトp+ 層
135,165 コレクタp+ 層
161 SOI基板
172 プラズマパネル
173 スキャンIC
174,175 サステイン回路および電力回収回路
176 アドレスIC
180 プラズマディスプレイパネル
Claims (5)
- 活性層となる第1の導電型の第1の半導体層と、該第1の半導体層の第1の主表面に形成される第2の導電型の第2の半導体層と、該第2の半導体層の表面に形成される第1の導電型の第3の半導体層と、前記第1の半導体層の第1の主表面に前記第2の半導体層と離れて形成される第1の導電型の第4の半導体層と、該第4の半導体層の表面に高不純物濃度で形成される第1もしくは第2の導電型の第5の半導体層と、前記第2の半導体層と前記第3の半導体層に接触する第1の電極と、前記第4の半導体層に接触する第2の電極と、前記第1、第2及び第3の半導体層に跨って形成されるゲート電極とを備え、
前記第1の半導体層が第2の主表面で絶縁膜を介して支持基板上に形成される半導体装置の製造方法において、
SOI基板の活性層となる半導体層の、p型もしくはn型の不純物濃度が2E14cm-3以下であり、かつ、前記半導体層にイオン注入法により不純物を導入して前記第1の半導体層を形成すると共に、前記第2の半導体層と第4の半導体層の間の第1の半導体層がドリフト層であることを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記第1の半導体層には、前記第1の主表面から基板全面にイオン注入法により前記不純物が導入され、そのイオン種の注入の射影飛程が1μm以上であることを特徴とする半導体装置の製造方法。 - 請求項2に記載の半導体装置の製造方法において、前記SOI基板の活性層となるSi層厚が4μm以上であることを特徴とする半導体装置の製造方法。
- 請求項1から請求項3のうちの1つに記載の半導体装置の製造方法において、前記第1の半導体層が、前記SOI基板の活性層となるSi層の第1の主表面と対面する絶縁体と接触するSi面側からイオン注入法により導入されることを特徴とする半導体装置の製造方法。
- プラズマパネルにアドレスICで駆動されるアドレス電極が設けられ、サステイン回路によりスキャンICで駆動されるY電極、サステイン回路により駆動されるX電極が設けられてプラズマパネルユニットが構成されるプラズマパネルディスプレイであって、前記アドレスIC、スキャンIC、サステイン回路の半導体装置に、請求項1から請求項4のうちの1つに記載の半導体装置の製造方法を用いて形成される半導体装置を用いたことを特徴とするプラズマパネルディスプレイ。
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JP2010165978A (ja) * | 2009-01-19 | 2010-07-29 | Panasonic Corp | 半導体装置およびその製造方法 |
CN103222057A (zh) * | 2011-11-17 | 2013-07-24 | 富士电机株式会社 | 半导体器件以及半导体器件的制造方法 |
US8735937B2 (en) * | 2012-05-31 | 2014-05-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Fully isolated LIGBT and methods for forming the same |
US10546816B2 (en) * | 2015-12-10 | 2020-01-28 | Nexperia B.V. | Semiconductor substrate with electrically isolating dielectric partition |
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US6064086A (en) * | 1995-08-24 | 2000-05-16 | Kabushiki Kaisha Toshiba | Semiconductor device having lateral IGBT |
US5731603A (en) * | 1995-08-24 | 1998-03-24 | Kabushiki Kaisha Toshiba | Lateral IGBT |
US5646055A (en) * | 1996-05-01 | 1997-07-08 | Motorola, Inc. | Method for making bipolar transistor |
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US5998246A (en) * | 1997-08-08 | 1999-12-07 | National Science Council Of Republic Of China | Self-aligned manufacturing method of a thin film transistor for forming a single-crystal bottom-gate and an offset drain |
US6150697A (en) * | 1998-04-30 | 2000-11-21 | Denso Corporation | Semiconductor apparatus having high withstand voltage |
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