CN111326572A - 一种半导体功率器件的背面结构 - Google Patents
一种半导体功率器件的背面结构 Download PDFInfo
- Publication number
- CN111326572A CN111326572A CN202010096880.2A CN202010096880A CN111326572A CN 111326572 A CN111326572 A CN 111326572A CN 202010096880 A CN202010096880 A CN 202010096880A CN 111326572 A CN111326572 A CN 111326572A
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- Prior art keywords
- metal
- semiconductor substrate
- power device
- ohmic contact
- type semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 187
- 229910052751 metal Inorganic materials 0.000 claims abstract description 192
- 239000002184 metal Substances 0.000 claims abstract description 192
- 239000000758 substrate Substances 0.000 claims abstract description 159
- 230000001413 cellular effect Effects 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 11
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims description 5
- -1 aluminum-silicon-copper Chemical compound 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical group [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 42
- 150000002500 ions Chemical class 0.000 description 9
- 150000002739 metals Chemical class 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 210000000746 body region Anatomy 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
Images
Classifications
-
- 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
- H01L29/40—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
-
- 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
- H01L29/40—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
- H01L29/41708—Emitter or collector electrodes for bipolar 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
- H01L29/40—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 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
- H01L29/73—Bipolar junction transistors
- H01L29/732—Vertical 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
- H01L29/7827—Vertical 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
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/8613—Mesa PN junction diodes
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010096880.2A CN111326572A (zh) | 2020-02-17 | 2020-02-17 | 一种半导体功率器件的背面结构 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010096880.2A CN111326572A (zh) | 2020-02-17 | 2020-02-17 | 一种半导体功率器件的背面结构 |
Publications (1)
Publication Number | Publication Date |
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CN111326572A true CN111326572A (zh) | 2020-06-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010096880.2A Pending CN111326572A (zh) | 2020-02-17 | 2020-02-17 | 一种半导体功率器件的背面结构 |
Country Status (1)
Country | Link |
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CN (1) | CN111326572A (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002076326A (ja) * | 2000-09-04 | 2002-03-15 | Shindengen Electric Mfg Co Ltd | 半導体装置 |
JP2004096118A (ja) * | 2003-09-12 | 2004-03-25 | Hitachi Ltd | 半導体装置およびその製造方法 |
US20100289074A1 (en) * | 2009-05-15 | 2010-11-18 | Niko Semiconductor Co., Ltd. | Semiconductor device and method of fabricating the same |
CN106057876A (zh) * | 2016-07-19 | 2016-10-26 | 上海华虹宏力半导体制造有限公司 | 具有反向续流能力的igbt及其制造方法 |
CN106298897A (zh) * | 2015-05-15 | 2017-01-04 | 国网智能电网研究院 | 一种具有分离式集电极的平面栅igbt及其制作方法 |
CN211017083U (zh) * | 2020-02-17 | 2020-07-14 | 捷捷微电(上海)科技有限公司 | 一种半导体功率器件的背面结构 |
-
2020
- 2020-02-17 CN CN202010096880.2A patent/CN111326572A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002076326A (ja) * | 2000-09-04 | 2002-03-15 | Shindengen Electric Mfg Co Ltd | 半導体装置 |
JP2004096118A (ja) * | 2003-09-12 | 2004-03-25 | Hitachi Ltd | 半導体装置およびその製造方法 |
US20100289074A1 (en) * | 2009-05-15 | 2010-11-18 | Niko Semiconductor Co., Ltd. | Semiconductor device and method of fabricating the same |
CN106298897A (zh) * | 2015-05-15 | 2017-01-04 | 国网智能电网研究院 | 一种具有分离式集电极的平面栅igbt及其制作方法 |
CN106057876A (zh) * | 2016-07-19 | 2016-10-26 | 上海华虹宏力半导体制造有限公司 | 具有反向续流能力的igbt及其制造方法 |
CN211017083U (zh) * | 2020-02-17 | 2020-07-14 | 捷捷微电(上海)科技有限公司 | 一种半导体功率器件的背面结构 |
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CB03 | Change of inventor or designer information |
Inventor after: Sun Yantao Inventor after: Huang Jian Inventor after: Song Yuehua Inventor after: Wu Pingli Inventor after: Fan Jun Inventor after: Zhang Lina Inventor before: Chen Zerui Inventor before: Huang Jian Inventor before: Sun Yantao Inventor before: Song Yuehua Inventor before: Wu Pingli Inventor before: Fan Jun Inventor before: Zhang Lina |
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CB03 | Change of inventor or designer information |