JP4660090B2 - ドレインコンタクトが改善されたトレンチ二重拡散金属酸化膜半導体デバイス - Google Patents
ドレインコンタクトが改善されたトレンチ二重拡散金属酸化膜半導体デバイス Download PDFInfo
- Publication number
- JP4660090B2 JP4660090B2 JP2003541021A JP2003541021A JP4660090B2 JP 4660090 B2 JP4660090 B2 JP 4660090B2 JP 2003541021 A JP2003541021 A JP 2003541021A JP 2003541021 A JP2003541021 A JP 2003541021A JP 4660090 B2 JP4660090 B2 JP 4660090B2
- Authority
- JP
- Japan
- Prior art keywords
- region
- trench
- oxide semiconductor
- metal oxide
- transistor device
- 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 47
- 229910044991 metal oxide Inorganic materials 0.000 title claims description 40
- 150000004706 metal oxides Chemical class 0.000 title claims description 40
- 239000000758 substrate Substances 0.000 claims description 55
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 38
- 238000009792 diffusion process Methods 0.000 claims description 34
- 229920005591 polysilicon Polymers 0.000 claims description 33
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 210000000746 body region Anatomy 0.000 claims description 18
- 238000005530 etching Methods 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 description 12
- 239000005380 borophosphosilicate glass Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001465 metallisation 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/0603—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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
- H01L29/0653—Dielectric regions, e.g. SiO2 regions, air gaps adjoining the input or output region of a field-effect device, e.g. the source or drain region
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/0445—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising crystalline silicon carbide
- H01L21/0455—Making n or p doped regions or layers, e.g. using diffusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76243—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using silicon implanted buried insulating layers, e.g. oxide layers, i.e. SIMOX techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41741—Source or drain electrodes for field effect devices for vertical or pseudo-vertical devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7809—Vertical DMOS transistors, i.e. VDMOS transistors having both source and drain contacts on the same surface, i.e. Up-Drain VDMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7811—Vertical DMOS transistors, i.e. VDMOS transistors with an edge termination structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7812—Vertical DMOS transistors, i.e. VDMOS transistors with a substrate comprising an insulating layer, e.g. SOI-VDMOS transistors
Description
Claims (28)
- 共通のドレイン領域として機能する第1の伝導型の基板と、
上記基板上に形成され、該基板より低い多数キャリア濃度を有する第1の伝導型のエピタキシャル層と、
上記エピタキシャル層の表面から、該エピタキシャル層内に延びるゲート用及びドレイン用のトレンチと、
上記ゲート用及びドレイン用のトレンチの内壁の少なくとも一部を覆う絶縁層と、
上記絶縁層に隣接して、少なくとも上記ゲート用のトレンチ内を埋め込む導電領域と、
上記エピタキシャル層内の上部であって、上記ゲート用のトレンチに隣接する部分に形成された第2の伝導型のボディ領域と、
上記ボディ領域の上部であって、上記ゲート用のトレンチに隣接する部分に形成された第1の伝導型のソース領域と、
上記ソース領域から離れた端子領域内の上記ドレイン用のトレンチの底面から上記エピタキシャル層内へ延び、上記基板への電気的コンタクトとして機能する低い抵抗率を有する深い領域とを備え、
当該トレンチ二重拡散金属酸化膜半導体トランジスタデバイスは、上記深い領域の表面に接する金属ドレインコンタクトと、上記ソース領域の表面に接する金属ソースコンタクトと、上記ソース領域から離れた端子領域内の上記導電領域の表面に接する金属ゲートコンタクトとを有することを特徴するトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。 - 上記低い抵抗率を有する深い領域は、0.01Ω・cm以下の抵抗率を有し、上記エピタキシャル層の表面から上記基板までの距離の少なくとも20%延びていることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、上記第1の伝導型の半導体領域からなることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、上記基板まで延びていることを特徴とする請求項3記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、金属領域からなることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記金属領域は、アルミニウムを含むことを特徴とする請求項5記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、上記基板まで延びていることを特徴とする請求項5記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、ドープされたポリシリコン領域を含むことを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、上記基板まで延びていることを特徴とする請求項8記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 複数の深い領域が形成されていることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 四角形又は六角形の形状を有する複数のトランジスタセルを備える請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 当該トレンチ二重拡散金属酸化膜半導体トランジスタデバイスは、シリコンデバイスであることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記絶縁層は、酸化層であることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記導電領域は、ドープされた多結晶シリコン領域であることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記第1の伝導型は、n型であり、上記第2の伝導型は、p型であることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記基板は、n+基板であり、上記エピタキシャル層は、nエピタキシャル層であり、上記ボディ領域は、p領域であり、上記ソース領域は、n+領域であることを特徴とする請求項1記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 共通のドレイン領域として機能するn型のシリコン基板と、
上記シリコン基板上に形成され、上記シリコン基板より低い多数キャリア濃度を有するn型のエピタキシャル層と、
上記エピタキシャル層の表面から、該エピタキシャル層内に延びるゲート用及びドレイン用のトレンチと、
上記ゲート用及びドレイン用のトレンチの内壁の少なくとも一部を覆う絶縁層と、
上記絶縁層に隣接して、少なくとも上記ゲート用のトレンチ内を埋め込むドープされた多結晶シリコン導電領域と、
上記エピタキシャル層内の上部であって、上記ゲート用のトレンチに隣接する部分に形成されたp型のボディ領域と、
上記ボディ領域の上部であって、上記ゲート用のトレンチに隣接する部分に形成されたn型のソース領域と、
上記ドレイン用のトレンチの底面から上記エピタキシャル層内へ延び、上記シリコン基板への電気的コンタクトとして機能する低い抵抗率を有する深い領域とを備え、
当該トレンチ二重拡散金属酸化膜半導体トランジスタデバイスは、複数のトランジスタセルからなり、
当該トレンチ二重拡散金属酸化膜半導体トランジスタデバイスは、上記複数のトランジスタセル内の共通のソースコンタクトと、該トランジスタセルから離れた端子領域内の共通のドレインコンタクトと、該端子領域内の共通のゲートコンタクトとを有し、該共通のソースコンタクト、共通のドレインコンタクト及び共通のゲートコンタクトは、当該トレンチ二重拡散金属酸化膜半導体トランジスタデバイスの上面に形成されていることを特徴とするトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。 - 上記低い抵抗率を有する深い領域は、0.01Ω・cm以下の抵抗率を有することを特徴とする請求項17記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、n型の半導体領域からなることを特徴とする請求項17記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、金属領域からなることを特徴とする請求項17記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記深い領域は、ドープされたポリシリコン領域を含むことを特徴とする請求項17記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 上記トランジスタセルは、六角形又は四角形のいずれかの形状を有することを特徴とする請求項17記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイス。
- 共通のドレイン領域として機能する第1の伝導型の基板を準備する工程と、
上記基板上に、該基板より低い多数キャリア濃度を有する第1の伝導型のエピタキシャル層を成長させる工程と、
上記エピタキシャル層内の上部に、第2の伝導型のボディ領域を形成する工程と、
上記エピタキシャル層の表面から、該エピタキシャル層内に延びるゲート用及びドレイン用のトレンチをエッチングする工程と、
上記ゲート用及びドレイン用のトレンチの内壁の少なくとも一部を覆う絶縁層を形成する工程と、
上記絶縁層に隣接して、少なくとも上記ゲート用のトレンチ内を埋め込む導電領域を形成する工程と、
上記ボディ領域の上部であって、上記ゲート用のトレンチに隣接する部分に、上記第1の伝導型のソース領域を形成する工程と、
上記ドレイン用のトレンチの底面から上記エピタキシャル層内へ延び、上記基板への電気的コンタクトとして機能する低い抵抗率を有する深い領域を形成する工程と、
上記深い領域の表面に接する金属ドレインコンタクトを形成する工程と、
上記ソース領域の表面に接する金属ソースコンタクトを形成する工程と、
上記ソース領域から離れた端子領域内の上記導電領域の表面に接する金属ゲートコンタクトを形成する工程とを有するトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。 - 上記深い領域は、打込み及び拡散プロセスによって形成された上記第1の伝導型の半導体領域を含むことを特徴とする請求項23記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。
- 上記深い領域は、金属領域を含み、
上記深い領域を形成する工程は、
上記ドレイン用のトレンチの底面から上記エピタキシャル層内に延びる深いトレンチをエッチングする工程と、
上記深いトレンチ内に金属を堆積させる工程とを有することを特徴とする請求項23記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。 - 上記深い領域は、ドープされたポリシリコンゲート領域を含み、
上記深い領域を形成する工程は、
上記ドレイン用のトレンチの底面から上記エピタキシャル層内に延びる深いトレンチをエッチングする工程と、
上記深いトレンチ内にポリシリコンを堆積させる工程とを有することを特徴とする請求項23記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。 - 上記低い抵抗率を有する深い領域は、0.01Ω・cm以下の抵抗率を有し、上記エピタキシャル層の表面から上記基板までの距離の少なくとも20%延びていることを特徴とする請求項23記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。
- 上記深い領域は、上記エピタキシャル層の表面から上記基板まで延びていることを特徴とする請求項27記載のトレンチ二重拡散金属酸化膜半導体トランジスタデバイスの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/021,419 US6657255B2 (en) | 2001-10-30 | 2001-10-30 | Trench DMOS device with improved drain contact |
PCT/US2002/034826 WO2003038863A2 (en) | 2001-10-30 | 2002-10-30 | Trench dmos device with improved drain contact |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005508083A JP2005508083A (ja) | 2005-03-24 |
JP4660090B2 true JP4660090B2 (ja) | 2011-03-30 |
Family
ID=21804106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003541021A Expired - Fee Related JP4660090B2 (ja) | 2001-10-30 | 2002-10-30 | ドレインコンタクトが改善されたトレンチ二重拡散金属酸化膜半導体デバイス |
Country Status (8)
Country | Link |
---|---|
US (2) | US6657255B2 (ja) |
EP (1) | EP1446839A4 (ja) |
JP (1) | JP4660090B2 (ja) |
KR (1) | KR100967883B1 (ja) |
CN (1) | CN100342545C (ja) |
AU (1) | AU2002353930A1 (ja) |
TW (1) | TWI254453B (ja) |
WO (1) | WO2003038863A2 (ja) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10243743B4 (de) * | 2002-09-20 | 2010-04-08 | Infineon Technologies Ag | Quasivertikales Halbleiterbauelement |
TW583748B (en) * | 2003-03-28 | 2004-04-11 | Mosel Vitelic Inc | The termination structure of DMOS device |
JP4622214B2 (ja) * | 2003-07-30 | 2011-02-02 | トヨタ自動車株式会社 | 電流センシング機能を有する半導体装置 |
US7973381B2 (en) * | 2003-09-08 | 2011-07-05 | International Rectifier Corporation | Thick field oxide termination for trench schottky device |
US7164160B2 (en) * | 2003-09-29 | 2007-01-16 | Texas Instruments Incorporated | Integrated circuit device with a vertical JFET |
US7304354B2 (en) * | 2004-02-17 | 2007-12-04 | Silicon Space Technology Corp. | Buried guard ring and radiation hardened isolation structures and fabrication methods |
US7352036B2 (en) | 2004-08-03 | 2008-04-01 | Fairchild Semiconductor Corporation | Semiconductor power device having a top-side drain using a sinker trench |
JP4802542B2 (ja) * | 2005-04-19 | 2011-10-26 | 株式会社デンソー | 炭化珪素半導体装置 |
US20070004116A1 (en) * | 2005-06-06 | 2007-01-04 | M-Mos Semiconductor Sdn. Bhd. | Trenched MOSFET termination with tungsten plug structures |
JP2007013058A (ja) * | 2005-07-04 | 2007-01-18 | Toshiba Corp | 半導体装置 |
JP2007184553A (ja) * | 2005-12-06 | 2007-07-19 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
KR100782488B1 (ko) | 2006-08-24 | 2007-12-05 | 삼성전자주식회사 | 매립 배선들을 갖는 반도체소자 및 그 제조방법 |
US7705397B2 (en) | 2006-09-08 | 2010-04-27 | Fairchild Semiconductor, Inc. | Devices, methods, and systems with MOS-gated trench-to-trench lateral current flow |
US7750398B2 (en) * | 2006-09-26 | 2010-07-06 | Force-Mos Technology Corporation | Trench MOSFET with trench termination and manufacture thereof |
KR100861213B1 (ko) * | 2007-04-17 | 2008-09-30 | 동부일렉트로닉스 주식회사 | 반도체 소자 및 그 제조방법 |
US7781832B2 (en) * | 2008-05-28 | 2010-08-24 | Ptek Technology Co., Ltd. | Trench-type power MOS transistor and integrated circuit utilizing the same |
TWI396240B (zh) * | 2009-05-08 | 2013-05-11 | Anpec Electronics Corp | 製造功率半導體元件的方法 |
US7816720B1 (en) * | 2009-07-08 | 2010-10-19 | Force Mos Technology Co., Ltd. | Trench MOSFET structure having improved avalanche capability using three masks process |
CN101989577B (zh) * | 2009-08-03 | 2012-12-12 | 力士科技股份有限公司 | 一种沟槽mosfet的制造方法 |
US20110084332A1 (en) * | 2009-10-08 | 2011-04-14 | Vishay General Semiconductor, Llc. | Trench termination structure |
US9306056B2 (en) | 2009-10-30 | 2016-04-05 | Vishay-Siliconix | Semiconductor device with trench-like feed-throughs |
US8604525B2 (en) | 2009-11-02 | 2013-12-10 | Vishay-Siliconix | Transistor structure with feed-through source-to-substrate contact |
US8928065B2 (en) * | 2010-03-16 | 2015-01-06 | Vishay General Semiconductor Llc | Trench DMOS device with improved termination structure for high voltage applications |
JP2012064849A (ja) * | 2010-09-17 | 2012-03-29 | Toshiba Corp | 半導体装置 |
US8754472B2 (en) * | 2011-03-10 | 2014-06-17 | O2Micro, Inc. | Methods for fabricating transistors including one or more circular trenches |
US8487371B2 (en) | 2011-03-29 | 2013-07-16 | Fairchild Semiconductor Corporation | Vertical MOSFET transistor having source/drain contacts disposed on the same side and method for manufacturing the same |
US8502314B2 (en) * | 2011-04-21 | 2013-08-06 | Fairchild Semiconductor Corporation | Multi-level options for power MOSFETS |
CN102832244B (zh) * | 2011-06-13 | 2015-08-26 | 万国半导体股份有限公司 | 带有衬底端裸露的器件端电极的半导体器件及其制备方法 |
CN102867848B (zh) * | 2011-07-04 | 2015-04-15 | 科轩微电子股份有限公司 | 沟槽式功率半导体元件及其制造方法 |
CN102938414B (zh) * | 2011-08-16 | 2016-05-25 | 帅群微电子股份有限公司 | 沟槽式功率半导体元件及其制造方法 |
CN102354694A (zh) * | 2011-08-25 | 2012-02-15 | 复旦大学 | 一种自对准的垂直式非挥发性半导体存储器件 |
US8569780B2 (en) * | 2011-09-27 | 2013-10-29 | Force Mos Technology Co., Ltd. | Semiconductor power device with embedded diodes and resistors using reduced mask processes |
JP6212849B2 (ja) * | 2012-10-05 | 2017-10-18 | 凸版印刷株式会社 | パウチ容器 |
US9425304B2 (en) | 2014-08-21 | 2016-08-23 | Vishay-Siliconix | Transistor structure with improved unclamped inductive switching immunity |
JP6613610B2 (ja) * | 2015-05-14 | 2019-12-04 | 富士電機株式会社 | 半導体装置および半導体装置の製造方法 |
TWI575740B (zh) * | 2015-10-06 | 2017-03-21 | 世界先進積體電路股份有限公司 | 半導體裝置及其製造方法 |
US9548354B1 (en) | 2015-12-17 | 2017-01-17 | Vanguard International Semiconductor Corporation | Semiconductor devices and methods for fabricating the same |
US10038058B2 (en) | 2016-05-07 | 2018-07-31 | Silicon Space Technology Corporation | FinFET device structure and method for forming same |
CN112366230A (zh) * | 2020-11-09 | 2021-02-12 | 中芯集成电路制造(绍兴)有限公司 | 功率半导体器件及形成方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63173371A (ja) * | 1987-01-13 | 1988-07-16 | Fujitsu Ltd | 高耐圧絶縁ゲ−ト型電界効果トランジスタ |
JPS63194367A (ja) * | 1987-02-06 | 1988-08-11 | Matsushita Electric Works Ltd | 半導体装置 |
JPH07326742A (ja) * | 1994-05-30 | 1995-12-12 | Toshiba Corp | 半導体装置およびその製造方法 |
JPH08213604A (ja) * | 1995-02-03 | 1996-08-20 | Nissan Motor Co Ltd | パワーmosfet |
JPH1168092A (ja) * | 1997-08-08 | 1999-03-09 | Nissan Motor Co Ltd | 溝型半導体装置 |
WO2001059842A1 (en) * | 2000-02-10 | 2001-08-16 | International Rectifier Corporation | Vertical conduction flip-chip device with bump contacts on single surface |
JP2002353452A (ja) * | 2001-05-25 | 2002-12-06 | Toshiba Corp | 電力用半導体素子 |
JP2002368218A (ja) * | 2001-06-08 | 2002-12-20 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5072266A (en) | 1988-12-27 | 1991-12-10 | Siliconix Incorporated | Trench DMOS power transistor with field-shaping body profile and three-dimensional geometry |
IT1254799B (it) * | 1992-02-18 | 1995-10-11 | St Microelectronics Srl | Transistore vdmos con migliorate caratteristiche di tenuta di tensione. |
JP3305415B2 (ja) * | 1992-06-18 | 2002-07-22 | キヤノン株式会社 | 半導体装置、インクジェットヘッド、および画像形成装置 |
JPH06104446A (ja) * | 1992-09-22 | 1994-04-15 | Toshiba Corp | 半導体装置 |
JPH0799312A (ja) * | 1993-02-22 | 1995-04-11 | Texas Instr Inc <Ti> | 半導体装置とその製法 |
US5410170A (en) | 1993-04-14 | 1995-04-25 | Siliconix Incorporated | DMOS power transistors with reduced number of contacts using integrated body-source connections |
JP3015679B2 (ja) * | 1993-09-01 | 2000-03-06 | 株式会社東芝 | 半導体装置およびその製造方法 |
JP3400846B2 (ja) | 1994-01-20 | 2003-04-28 | 三菱電機株式会社 | トレンチ構造を有する半導体装置およびその製造方法 |
US5674766A (en) * | 1994-12-30 | 1997-10-07 | Siliconix Incorporated | Method of making a trench MOSFET with multi-resistivity drain to provide low on-resistance by varying dopant concentration in epitaxial layer |
US5665996A (en) * | 1994-12-30 | 1997-09-09 | Siliconix Incorporated | Vertical power mosfet having thick metal layer to reduce distributed resistance |
US5767546A (en) * | 1994-12-30 | 1998-06-16 | Siliconix Incorporated | Laternal power mosfet having metal strap layer to reduce distributed resistance |
JP3412332B2 (ja) * | 1995-04-26 | 2003-06-03 | 株式会社デンソー | 半導体装置 |
KR970018525A (ko) * | 1995-09-29 | 1997-04-30 | 김광호 | 트렌치 DMOS의 반도체장치 및 그의 제조방법(a trench DMOS semiconductor device and a method of fabricating the same) |
DE69834315T2 (de) * | 1998-02-10 | 2007-01-18 | Stmicroelectronics S.R.L., Agrate Brianza | Integrierte Schaltung mit einem VDMOS-Transistor, der gegen Überspannungen zwischen Source und Gate geschützt ist |
JP3303806B2 (ja) * | 1998-11-05 | 2002-07-22 | 日産自動車株式会社 | 半導体装置およびその製造方法 |
US7081166B2 (en) * | 1999-12-15 | 2006-07-25 | Unaxis Balzers Aktiengesellschaft | Planetary system workpiece support and method for surface treatment of workpieces |
GB0005650D0 (en) * | 2000-03-10 | 2000-05-03 | Koninkl Philips Electronics Nv | Field-effect semiconductor devices |
-
2001
- 2001-10-30 US US10/021,419 patent/US6657255B2/en not_active Expired - Lifetime
-
2002
- 2002-10-30 WO PCT/US2002/034826 patent/WO2003038863A2/en active Application Filing
- 2002-10-30 AU AU2002353930A patent/AU2002353930A1/en not_active Abandoned
- 2002-10-30 TW TW091132173A patent/TWI254453B/zh not_active IP Right Cessation
- 2002-10-30 CN CNB028218531A patent/CN100342545C/zh not_active Expired - Lifetime
- 2002-10-30 KR KR1020047006443A patent/KR100967883B1/ko active IP Right Grant
- 2002-10-30 JP JP2003541021A patent/JP4660090B2/ja not_active Expired - Fee Related
- 2002-10-30 EP EP02789331A patent/EP1446839A4/en not_active Ceased
-
2003
- 2003-12-01 US US10/725,326 patent/US7049194B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63173371A (ja) * | 1987-01-13 | 1988-07-16 | Fujitsu Ltd | 高耐圧絶縁ゲ−ト型電界効果トランジスタ |
JPS63194367A (ja) * | 1987-02-06 | 1988-08-11 | Matsushita Electric Works Ltd | 半導体装置 |
JPH07326742A (ja) * | 1994-05-30 | 1995-12-12 | Toshiba Corp | 半導体装置およびその製造方法 |
JPH08213604A (ja) * | 1995-02-03 | 1996-08-20 | Nissan Motor Co Ltd | パワーmosfet |
JPH1168092A (ja) * | 1997-08-08 | 1999-03-09 | Nissan Motor Co Ltd | 溝型半導体装置 |
WO2001059842A1 (en) * | 2000-02-10 | 2001-08-16 | International Rectifier Corporation | Vertical conduction flip-chip device with bump contacts on single surface |
JP2002353452A (ja) * | 2001-05-25 | 2002-12-06 | Toshiba Corp | 電力用半導体素子 |
JP2002368218A (ja) * | 2001-06-08 | 2002-12-20 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
CN100342545C (zh) | 2007-10-10 |
US20030080351A1 (en) | 2003-05-01 |
KR20050042022A (ko) | 2005-05-04 |
EP1446839A2 (en) | 2004-08-18 |
KR100967883B1 (ko) | 2010-07-05 |
JP2005508083A (ja) | 2005-03-24 |
US7049194B2 (en) | 2006-05-23 |
WO2003038863A2 (en) | 2003-05-08 |
US20040108554A1 (en) | 2004-06-10 |
TWI254453B (en) | 2006-05-01 |
CN1582500A (zh) | 2005-02-16 |
AU2002353930A1 (en) | 2003-05-12 |
US6657255B2 (en) | 2003-12-02 |
WO2003038863A3 (en) | 2003-11-20 |
TW200300607A (en) | 2003-06-01 |
EP1446839A4 (en) | 2008-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4660090B2 (ja) | ドレインコンタクトが改善されたトレンチ二重拡散金属酸化膜半導体デバイス | |
US7094640B2 (en) | Method of making a trench MOSFET device with improved on-resistance | |
JP5081367B2 (ja) | ゲート電荷が低いトレンチ金属酸化膜半導体電界効果トランジスタデバイス及びその製造方法。 | |
JP4060706B2 (ja) | ゲート電荷を低減したトレンチ金属酸化膜半導体電界効果トランジスタ素子 | |
JP3851776B2 (ja) | パワーmos素子及びmos素子の製造方法 | |
US5689128A (en) | High density trenched DMOS transistor | |
US6770539B2 (en) | Vertical type MOSFET and manufacturing method thereof | |
US10468402B1 (en) | Trench diode and method of forming the same | |
JP2005510881A5 (ja) | ||
EP1085577A2 (en) | Power field-effect transistor having a trench gate electrode and method of making the same | |
JP2003533889A (ja) | トレンチゲート半導体装置 | |
KR20000004472A (ko) | 트렌치 게이트 구조의 전력 반도체장치 및 그 제조방법 | |
US11282952B2 (en) | Semiconductor device | |
JP2005510088A (ja) | 多結晶シリコンソースコンタクト構造を有するトレンチ金属酸化膜半導体電界効果トランジスタデバイス | |
JP4261335B2 (ja) | トレンチゲート半導体デバイスの製造 | |
US20080073710A1 (en) | Semiconductor device with a vertical MOSFET and method for manufacturing the same | |
US8643093B2 (en) | Semiconductor device and method of manufacturing the same | |
JP2005536868A (ja) | 寄生抵抗が低いトレンチ金属酸化膜半導体電界効果トランジスタデバイスの製造方法 | |
CN103035668A (zh) | 横向堆叠超级接面功率半导体装置 | |
US20010023957A1 (en) | Trench-gate semiconductor devices | |
US11949009B2 (en) | Semiconductor die and method of manufacturing the same | |
JP3303806B2 (ja) | 半導体装置およびその製造方法 | |
KR100922934B1 (ko) | 반도체 소자 및 그 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051013 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090811 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20091111 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20091118 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20091211 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20100112 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20100118 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20100119 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100212 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100810 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101110 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101207 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101228 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140107 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4660090 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |