WO2009041741A1 - Dmosトランジスタ及びその製造方法 - Google Patents
Dmosトランジスタ及びその製造方法 Download PDFInfo
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- WO2009041741A1 WO2009041741A1 PCT/JP2008/068113 JP2008068113W WO2009041741A1 WO 2009041741 A1 WO2009041741 A1 WO 2009041741A1 JP 2008068113 W JP2008068113 W JP 2008068113W WO 2009041741 A1 WO2009041741 A1 WO 2009041741A1
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- transistor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/126—Top-view geometrical layouts of the regions or the junctions
- H10D62/127—Top-view geometrical layouts of the regions or the junctions of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0281—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs
- H10D30/0285—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of lateral DMOS [LDMOS] FETs using formation of insulating sidewall spacers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/65—Lateral DMOS [LDMOS] FETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/393—Body regions of DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/514—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers
- H10D64/516—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers the thicknesses being non-uniform
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/517—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers
- H10D64/519—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers characterised by their top-view geometrical layouts
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P30/00—Ion implantation into wafers, substrates or parts of devices
- H10P30/20—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping
- H10P30/22—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping using masks
- H10P30/221—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping using masks characterised by the angle between the ion beam and the mask
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P30/00—Ion implantation into wafers, substrates or parts of devices
- H10P30/20—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping
- H10P30/222—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping characterised by the angle between the ion beam and the crystal planes or the main crystal surface
Definitions
- the present invention relates to a DMO S transistor and a manufacturing method thereof.
- the DMO S transistor is a MO S field-effect transistor in which the source layer and the channel body layer are formed by double diffusion, and is used as a power semiconductor element for power circuits and driver circuits.
- the on-resistance of DMOS transistors In recent years, due to demands for smaller electronic devices and lower power consumption, it is required to reduce the on-resistance of DMOS transistors. For this reason, the number of transistors per unit area is increased by reducing the transistor pitch using microfabrication technology. Conventionally, the body layer formed by thermal diffusion is formed by the oblique ion implantation technique, thereby shortening the transistor channel length and reducing the on-resistance.
- FIG. Fig. 12 is a plan view showing the pattern of a horizontal DMOS transistor
- Fig. 13 is a cross-sectional view of Fig. 12
- Fig. 13 (A) is the X-X line of Fig. 12.
- Fig. 13 (B) is a cross-sectional view taken along line Y-Y in Fig. 12.
- an N-type saw A layer 1 1 is formed on the surface of an N-type semiconductor substrate 10 (for example, a silicon single crystal substrate).
- the source layer 11 is composed of an N-type layer 1 1 A and an N + -type layer 1 1 B having a higher concentration than the N-type layer 1 1 A.
- a gate insulating film 1 2 and an electric field relaxation insulating film 1 3 (LOCOS film) connected to the gate insulating film 12 are formed adjacent to the source layer 11, and this gate is formed.
- a gate electrode 14 (for example, made of a polysilicon film) is formed on the insulating film 12 and on a part of the electric field relaxation insulating film 13.
- the gate electrode 14 is formed so as to surround the source layer 11 in a ring shape, and the source layer 11 is exposed from a rectangular opening of the ring-shaped gate electrode 14.
- a spacer film 15 (for example, made of a silicon oxide film) is formed on the side wall of the gate electrode 14, and this spacer film 15 is used to form a high concentration N + of the source layer 11.
- a mold layer 1 1 B is formed.
- An N + type drain layer 16 is formed on the surface of the semiconductor substrate 10.
- the drain layer 16 is disposed away from the source layer 11 with the electric field relaxation insulating film 13 interposed therebetween.
- a P-type body layer 17 is formed which partially overlaps the source layer 11 and extends to the surface of the semiconductor substrate 10 below the gate electrode 14.
- the surface of the body layer 17 is inverted to N-type when the voltage applied to the gate electrode 14 exceeds the threshold voltage, and forms a conductive channel between the source layer 11 and the drain layer 16. ing.
- the end portions of the source layer 11 and the gate electrode 14 adjacent to the source layer 11 are exposed from the photoresist layer 18.
- the body layer 17 can be formed in a narrow region below the gate electrode 14, so that the channel length of the transistor can be shortened and low on-resistance can be achieved. .
- the D M O S transistor is described in, for example, Japanese Patent Publication Nos. 1 0-2 3 3 5 0 8 and 2 0 0 4 0 3 9 7 7 3. Disclosure of the invention
- the impurity concentration in the body layer 17 is locally reduced in the corner portion inside the gate electrode 14 and the threshold voltage is lowered. In this portion, the source layer 1 1 and the drain layer 16 This causes problems such as an increase in leakage current during the period and a decrease in the source-drain breakdown voltage when the transistor is off.
- the manufacturing method of the DMOS transistor of the present invention is made in view of the above-described problems, and includes a semiconductor substrate, a first conductivity type source layer formed on a surface of the semiconductor substrate, and a surface of the semiconductor substrate. And a gate insulating film formed on the gate insulating film.
- the step of forming the body layer includes an inner side of the gate electrode And a step of ion-implanting the second conductivity type impurity into the surface of the semiconductor substrate.
- the step of forming the body layer includes a step of ion-implanting a second conductivity type impurity into the surface of the semiconductor substrate so as to face a corner portion inside the gate electrode. Therefore, it is possible to suppress a local decrease in the impurity concentration of the body layer in a part of the corner. As a result, the leakage current can be reduced and the breakdown voltage between the source and the drain when the transistor is off can be improved.
- the DMOS transistor of the present invention includes a semiconductor substrate, a first conductivity type source layer formed on a surface of the semiconductor substrate, a gate insulating film formed on the surface of the semiconductor substrate, A gate electrode formed in a ring shape surrounding the source layer via a gate insulating film, and a second conductivity type body that overlaps the source layer and extends to the surface of the semiconductor substrate below the gate electrode A drain layer of the first conductivity type formed on the surface of the semiconductor substrate corresponding to the source layer, and the impurity concentration of the body layer decreases at a corner portion inside the gate electrode
- the source layer is formed apart from a part of the corner.
- the impurity concentration of the body layer is reduced at the corner portion inside the gate electrode, and the source layer is formed away from the corner portion.
- the impurity concentration of the body layer is locally It is possible to suppress the local degradation and the operation of the parasitic transistor with a low threshold voltage. As a result, the leakage current can be reduced, and the withstand voltage between the source and the drain when the transistor is off can be improved.
- the leakage current due to the parasitic transistor at the corner is indicated by a broken line arrow.
- the leakage current between the source layer and the drain layer is reduced, and the source and drain are turned off when the transistor is off.
- the breakdown voltage can be improved.
- FIG. 1 is a plan view for explaining a DMO S transistor according to the first embodiment of the present invention and a method for manufacturing the same
- FIG. 2 is a cross-sectional view of the DMO S transistor of FIG. 1
- FIG. 4 is a plan view for explaining the DMO S transistor and its manufacturing method according to the first embodiment of the present invention
- FIG. 5 is a plan view of the DMO S of FIG.
- FIG. 6 is a diagram schematically showing an energy band state when the DMOS transistor according to the first embodiment of the present invention is turned off
- FIG. 7 is a diagram illustrating the first embodiment of the present invention.
- FIG. 8 is a plan view illustrating a DMO S transistor according to an embodiment and a method for manufacturing the same
- FIG. 8 is a plan view illustrating a DMO S transistor according to the first embodiment of the present invention and a method for manufacturing the same.
- D MO S transition according to the second embodiment of the invention FIG. 10 is a cross-sectional view of the DMO S transistor of FIG. 9, and FIG. 11 is a cross-sectional view of the DMO S transistor according to the second embodiment.
- Fig. 12 is a diagram schematically showing the energy band state of the formed parasitic transistor when it is off.
- Fig. 12 shows the conventional DMOS transistor and its manufacture.
- FIG. 13 is a cross-sectional view of the DMOS transistor of FIG. 12; BEST MODE FOR CARRYING OUT THE INVENTION
- a lateral DMO S transistor (hereinafter referred to as a DMO S transistor) according to the first embodiment and a manufacturing method thereof will be described.
- Fig. 1 is a plan view showing the pattern of a DMO S transistor
- Fig. 2 is a cross-sectional view of Fig. 1
- Fig. 2 (A) is a cross-sectional view along the line XX in Fig. 1.
- Fig. 2 (B) is a cross-sectional view along the line Y-Y in Fig. 1.
- the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals and description thereof is omitted.
- a feature of the manufacturing method of the DMOS transistor of the present invention lies in the step of forming the body layer 17 and is that ion implantation is performed while facing the inner corner of the gate electrode. That is, as shown in FIG. 1 and FIG. 2, after the photoresist layer 18 is formed, the photoresist layer 18 and the gate electrode 14 are used as masks and are indicated by arrows A ′.
- a first ion implantation of a P-type impurity for example, boron or BF 2
- a P-type first body layer 17 A ′ is formed.
- the first body layer 17 A ′ is partially overlapped with the source layer 11 and is formed to extend from the first corner portion 14 C 1 to below the gate electrode 14.
- the P-type impurity concentration in the body layer 17 A ′ of the corner 14 C 1 can be secured higher than that of the conventional transistor.
- the ion implantation direction is applied to the surface (main surface) of the semiconductor substrate 10. Inclined by a first angle 0 1 with respect to a direction perpendicular to the z direction (z direction in FIG. 3), and second with respect to the longitudinal direction (X direction in the figure) in which the gate electrode 14 extends. Inclined by angle 0 2 (See Fig. 1, Fig. 2, Fig. 3)
- the first angle 0 1 is greater than or equal to 20 ° and less than or equal to 45 ° (2 0 ° ⁇ 0 1 ⁇ 4 5 °), and the second angle 0 2 is greater than or equal to 15 ° and less than or equal to 4 0 ° (1 5 ° ⁇ 6 2 ⁇ 4 0 °;), or more than 50 ° and 75 ° or less (50 ° ⁇ 0 2 ⁇ 75 °) is preferable for suppressing channeling. More preferably, in order to suppress channeling, the longitudinal direction (X direction) or the lateral direction (y direction perpendicular to the X direction) of the gate electrode 14 is a semiconductor substrate having an orientation on the (1 1 0) plane. This is consistent with the ⁇ 1 1 0> direction of (silicon single crystal wafer).
- the dose and acceleration energy of the first ion implantation can be determined in consideration of characteristics such as the threshold value of the transistor.
- characteristics such as the threshold value of the transistor.
- the dose is 4 X 1 0 1 2 to 5 X 1 0 1 2Z cm 2 and the acceleration energy is 70 keV.
- the second corner portion 1 4 C 2 adjacent to the first corner portion 14 C 1, the third corner portion 1 4 C 3 on the opposite side, and the fourth corner portion 1 4 C 4 is not ion-implanted due to the shadowing effect of the photoresist layer 18 and the gate electrode 14. Therefore, the following second ion implantation is performed. That is, as shown in FIGS. 4 and 5, the second ion implantation is performed under the same conditions as the first ion implantation after rotating the semiconductor substrate 10 (wafer).
- 4 is a plan view showing the pattern of the DMO S transistor
- FIG. 5 is a cross-sectional view of FIG. 4, and FIG.
- Fig. 4 is a cross-sectional view along line X-X.
- Fig. 5 (B) is a cross-sectional view along line Y-Y in Fig. 4. is there.
- the second ion implantation is performed from the second direction indicated by the arrow B ′ to the second corner portion 14 C 2 on the inner side of the gout electrode 14.
- a second body layer 17 B ′ is formed.
- the second body layer 1 7 B ′ is formed to extend from the second corner portion 1 4 C 2 to below the gate electrode 14, and the second body layer 1 7 B 2 of the second corner portion 1 4 C 2.
- the P-type impurity concentration can be kept higher than that of the conventional transistor. It is preferable that the first angle 01 and the second angle 02 of the ion implantation at this time are equivalent to the first ion implantation.
- a third ion implantation is performed by facing the third corner portion 14 C 3 from the third direction indicated by the arrow C ′, and the third body layer 1 7 C 'is formed.
- the fourth ion implantation is performed from the fourth direction indicated by the arrow D ′ toward the fourth corner portion 14 C 4, Form the body layer 1 7 D '.
- the impurity concentration of the body layer 17 at the four corners can be secured higher than that of the conventional transistor, so that the leakage current between the source layer 1 1 and the drain layer 16 can be reduced.
- the breakdown voltage between the source and the drain when the transistor is off can be improved.
- the photoresist layer 18 is removed, and then an interlayer insulating film is formed on the entire surface. Then, contact holes are formed in the interlayer insulating film on the source layer 11, the gate electrode 14, and the drain layer 16, and the source layer 11, the gate electrode 14, A wiring that contacts the drain layer 16 is formed.
- the impurity concentration of the body layer 17 at a part of the corner inside the gate electrode 14 can be made higher than that in the conventional example, but there are the following problems.
- FIG. Fig. 6 schematically shows the energy band state when the DMOS transistor is off.
- the energy band state of the parasitic transistor at the corner where the body layer 17 is formed by only one injection is shown by a solid line, and the normal transistor where the body layer 17 is formed by a second ion injection is shown by a broken line. ing.
- the impurity concentration of the body layer 17 at the corner is 1/2 of the normal part.
- the threshold voltage of the corner parasitic transistor is lower than that of the normal transistor.
- the impurity concentration of the body layer 1 7 necessary for avoiding the leakage current at the corner is the second half of 1 0 17 cm-3, about 10 to the 18th level / cm-3 in the normal part.
- the threshold voltage of the normal part exceeds 1 V, so there is a limit to reducing the threshold voltage.
- the source layer 11 has first to fourth corner portions in which the impurity concentration of the body layer 17 is lowered by oblique ion implantation. 1 4 C 1 to 14 C 4 are formed apart from each other. That is, the source layer 11 is separated from the first to fourth corner portions 14 C 1 to 14 C 4 and is retracted to the inside of the region surrounded by the gate electrode 14.
- FIG. 9 is a plan view showing the pattern of the DMOS transistor
- FIG. 10 is a cross-sectional view of FIG. 9
- FIG. 10 (A) is a cross-section along the line XX of FIG. Fig. 10
- (B) is a cross-sectional view taken along line Y—Y in FIG. Figures 9 and 10 are
- the distance between the source layer 1 1 and the first to fourth corner portions 1 4 C 1 to 14 C 4 is the thickness of the gate electrode 14 and the thickness of the photoresist layer 1 8, although it varies depending on the aspect ratio, it is preferably 1 to 2 m in a typical case.
- FIG. 11 schematically shows the energy band state when the parasitic transistor formed in the corner portion of the DMOS transistor in the second embodiment is off.
- the impurity concentration of the body layer 17 adjacent to the source layer 11 is the same as that of the normal part, so the energy barrier for the source layer 11 of the body layer 17 is the same as that of the normal part. become.
- the gate electrode 14 does not exist above the source layer 11 side of the body layer 17 including this region, the inversion layer is not formed in this region.
- the impurity concentration in the normal part can be lowered to 10 17 power / cm ⁇ 3 when the thickness of the gate insulating film 12 is 7 nm. Therefore, the threshold voltage of the DMOS transistor can be set to IV or lower, and further lower threshold voltage and lower on-resistance can be achieved.
- the end of the drain layer 16 formed corresponding to the source layer 11 is connected to the source layer 11 spaced from the corner of the gate electrode 16. It is preferable that it is aligned with the end of.
- the source layer 1 1 and the drain layer 16 are square in plan view. As a result, the widths of the source layer 1 1 and the drain layer 16 are the same. Current concentration can be prevented, and the strength against transistor breakdown (for example, electrostatic breakdown) due to current concentration can be improved, and the reliability of hot carriers can be improved.
- the present invention is not limited to the above-described embodiment, and modifications can be made without departing from the scope of the invention.
- the oblique ion implantation for forming the body layer 17 is performed after the source layer 11 is formed.
- the gate electrode 14 is formed, It may be performed before the formation of the source layer 11.
- the N-channel DMOS transistor is formed on the surface of the N semiconductor substrate 10, but the N-type optical semiconductor layer is formed on the P-type semiconductor substrate. It may be formed and formed on the surface of this epitaxial semiconductor layer.
- the N-channel type DMOS transistor has been described.
- the present invention also applies to the P-channel type DMOS transistor, the source layer 11, the drain layer 16, and the body layer. It can be applied by changing the conductivity type of 17 to the reverse conductivity type.
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- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200880109247XA CN101809727B (zh) | 2007-09-28 | 2008-09-26 | Dmos晶体管及其制造方法 |
| US12/680,012 US8395210B2 (en) | 2007-09-28 | 2008-09-26 | DMOS transistor and method of manufacturing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007255092A JP4956351B2 (ja) | 2007-09-28 | 2007-09-28 | Dmosトランジスタの製造方法 |
| JP2007-255092 | 2007-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009041741A1 true WO2009041741A1 (ja) | 2009-04-02 |
Family
ID=40511609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/068113 Ceased WO2009041741A1 (ja) | 2007-09-28 | 2008-09-26 | Dmosトランジスタ及びその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8395210B2 (ja) |
| JP (1) | JP4956351B2 (ja) |
| CN (1) | CN101809727B (ja) |
| WO (1) | WO2009041741A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011023429A (ja) * | 2009-07-13 | 2011-02-03 | Mitsumi Electric Co Ltd | 半導体装置の製造方法及び半導体集積回路装置 |
| CN102468177A (zh) * | 2010-11-19 | 2012-05-23 | 无锡华润上华半导体有限公司 | P型dmos器件及其制造方法 |
| US9941171B1 (en) * | 2016-11-18 | 2018-04-10 | Monolithic Power Systems, Inc. | Method for fabricating LDMOS with reduced source region |
| KR20260019292A (ko) * | 2024-08-01 | 2026-02-10 | 삼성전자주식회사 | 전력 반도체 소자 |
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| US7115946B2 (en) | 2000-09-28 | 2006-10-03 | Kabushiki Kaisha Toshiba | MOS transistor having an offset region |
| JP2002110970A (ja) * | 2000-09-28 | 2002-04-12 | Toshiba Corp | 半導体装置 |
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| JP3897801B2 (ja) * | 2005-08-31 | 2007-03-28 | シャープ株式会社 | 横型二重拡散型電界効果トランジスタおよびそれを備えた集積回路 |
| US20070148926A1 (en) * | 2005-12-28 | 2007-06-28 | Intel Corporation | Dual halo implant for improving short channel effect in three-dimensional tri-gate transistors |
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2007
- 2007-09-28 JP JP2007255092A patent/JP4956351B2/ja active Active
-
2008
- 2008-09-26 US US12/680,012 patent/US8395210B2/en active Active
- 2008-09-26 CN CN200880109247XA patent/CN101809727B/zh not_active Expired - Fee Related
- 2008-09-26 WO PCT/JP2008/068113 patent/WO2009041741A1/ja not_active Ceased
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| JPS63233567A (ja) * | 1987-03-23 | 1988-09-29 | Nippon Telegr & Teleph Corp <Ntt> | 半導体装置の製造方法 |
| JPH0697438A (ja) * | 1992-09-10 | 1994-04-08 | Hitachi Ltd | 絶縁ゲート形半導体装置 |
| JPH06291074A (ja) * | 1993-04-06 | 1994-10-18 | Nippondenso Co Ltd | 半導体装置の製造方法 |
| JPH08321556A (ja) * | 1995-03-09 | 1996-12-03 | Sgs Thomson Microelectron Srl | 集積回路の製造方法 |
| JPH09320978A (ja) * | 1996-05-31 | 1997-12-12 | Nec Corp | イオン注入方法 |
| JPH10303140A (ja) * | 1997-04-21 | 1998-11-13 | St Microelectron Srl | 絶縁ゲート電界効果トランジスタの製造方法 |
| JPH11111728A (ja) * | 1997-09-30 | 1999-04-23 | Matsushita Electric Works Ltd | Mosfetの製造方法 |
| JP2003502862A (ja) * | 1999-06-21 | 2003-01-21 | インフィニオン テクノロジーズ ノース アメリカ コーポレイション | ハローインプラントを形成するための改善された方法を用いてデバイス性能を向上させる方法 |
| JP2001077360A (ja) * | 1999-09-03 | 2001-03-23 | Matsushita Electronics Industry Corp | 半導体装置の製造方法 |
| JP2007027641A (ja) * | 2005-07-21 | 2007-02-01 | Toshiba Corp | 半導体装置及びその製造方法 |
| JP2007080919A (ja) * | 2005-09-12 | 2007-03-29 | Sanyo Electric Co Ltd | 半導体装置 |
| JP2007128978A (ja) * | 2005-11-01 | 2007-05-24 | Denso Corp | 半導体装置およびその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101809727A (zh) | 2010-08-18 |
| US20100193865A1 (en) | 2010-08-05 |
| US8395210B2 (en) | 2013-03-12 |
| JP2009088189A (ja) | 2009-04-23 |
| CN101809727B (zh) | 2012-03-21 |
| JP4956351B2 (ja) | 2012-06-20 |
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