JP4832814B2 - フォトマスク及びこれを利用して製造された半導体素子 - Google Patents
フォトマスク及びこれを利用して製造された半導体素子 Download PDFInfo
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- JP4832814B2 JP4832814B2 JP2005195111A JP2005195111A JP4832814B2 JP 4832814 B2 JP4832814 B2 JP 4832814B2 JP 2005195111 A JP2005195111 A JP 2005195111A JP 2005195111 A JP2005195111 A JP 2005195111A JP 4832814 B2 JP4832814 B2 JP 4832814B2
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- Prior art keywords
- region
- gate
- photomask
- star
- gate region
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- 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
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- 239000004065 semiconductor Substances 0.000 title claims description 38
- 239000000758 substrate Substances 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 15
- 238000002834 transmittance Methods 0.000 claims description 3
- 238000007792 addition Methods 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B69/00—Erasable-and-programmable ROM [EPROM] devices not provided for in groups H10B41/00 - H10B63/00, e.g. ultraviolet erasable-and-programmable ROM [UVEPROM] devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Semiconductor Memories (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Element Separation (AREA)
Description
図2に示されているように、フォトマスク11の遮光パターン13に対応する半導体基板20の領域40は格納電極コンタクト領域30と、これと隣接したゲート領域35の一部であり、STARゲート領域のリセスされた領域である。
図3に示されているように、半導体基板20上に活性領域25を定義する素子分離膜23が備えられる。図1のSTARフォトマスク10を利用して格納電極コンタクト領域と、これと隣接したゲート領域の一部を含む領域の半導体基板20がリセスされたSTARゲート領域が備えられる。
図6に示されているように、半導体基板120上に活性領域と前記活性領域を定義する素子分離膜123が備えられる。図4のジグザグ形態のW−STARフォトマスク100を利用して所定領域の半導体基板がエッチングされたW−STARゲート領域155が備えられ、その上部に段差のあるゲートが備えられる。
101 透明基板
103 遮光パターン
105 透光パターン
120 半導体基板
123 素子分離膜
125 活性領域
135 ゲート電極領域
155 W−STARゲート領域
Claims (5)
- STARゲート領域を定義するマスクパターンを形成するためのフォトマスクにおいて、
透明基板と、
ジグザグ形態のリセスW−STARゲート領域を定義する遮光パターンと、を含み、
前記遮光パターンの屈曲部は半導体基板に千鳥格子状に備えられた複数の活性領域のゲート領域及び格納電極コンタクト領域と部分的に重畳され、前記活性領域を定義する素子分離領域とは重畳されないこと、
を特徴とするフォトマスク。 - 前記フォトマスクは、バイナリーマスク、4〜10%の透過率を有するハーフトーン位相反転マスク及びこれらの組み合せでなるグループのうち選択されたいずれか一つのマスクを含むこと、
を特徴とする請求項1に記載のフォトマスク。 - 半導体基板上に千鳥格子状に備えられた複数の活性領域及び前記活性領域を定義する素子分離領域と、
前記活性領域と重畳される部分の線幅が素子分離領域と重畳される部分の線幅より大きいゲート電極と、
前記ゲート電極の下部に形成されるジグザグ形態のリセスW−STARゲート領域と、を含み、
前記リセスW−STARゲート領域の屈曲部は前記活性領域のゲート領域及び格納電極コンタクト領域と部分的に重畳され、前記活性領域を定義する素子分離領域とは重畳されないこと、
を特徴とする半導体素子。 - 前記リセスW−STARゲート領域の深さは、400〜700Åであること、
を特徴とする請求項3に記載の半導体素子。 - 前記リセスW−STARゲート領域の内角は、90〜140°であること、
を特徴とする請求項3に記載の半導体素子。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040102882A KR100657087B1 (ko) | 2004-12-08 | 2004-12-08 | 반도체 소자의 형성 방법 |
KR2004-102882 | 2004-12-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006163349A JP2006163349A (ja) | 2006-06-22 |
JP4832814B2 true JP4832814B2 (ja) | 2011-12-07 |
Family
ID=36573200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005195111A Expired - Fee Related JP4832814B2 (ja) | 2004-12-08 | 2005-07-04 | フォトマスク及びこれを利用して製造された半導体素子 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7755149B2 (ja) |
JP (1) | JP4832814B2 (ja) |
KR (1) | KR100657087B1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100657088B1 (ko) * | 2004-12-30 | 2006-12-12 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
KR100849186B1 (ko) * | 2006-04-28 | 2008-07-30 | 주식회사 하이닉스반도체 | 엘에스오아이 공정을 이용한 반도체소자의 제조 방법 |
KR100881731B1 (ko) | 2007-03-31 | 2009-02-06 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
US11004940B1 (en) * | 2020-07-31 | 2021-05-11 | Genesic Semiconductor Inc. | Manufacture of power devices having increased cross over current |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3361377B2 (ja) * | 1993-02-12 | 2003-01-07 | 松下電器産業株式会社 | 半導体装置及びその製造方法 |
US5459341A (en) * | 1993-02-12 | 1995-10-17 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device and method of manufacturing the same |
JP2006120719A (ja) * | 2004-10-19 | 2006-05-11 | Fujitsu Ltd | 不揮発性半導体記憶装置及びその製造方法 |
-
2004
- 2004-12-08 KR KR1020040102882A patent/KR100657087B1/ko not_active IP Right Cessation
-
2005
- 2005-06-24 US US11/165,179 patent/US7755149B2/en not_active Expired - Fee Related
- 2005-07-04 JP JP2005195111A patent/JP4832814B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20060118838A1 (en) | 2006-06-08 |
US7755149B2 (en) | 2010-07-13 |
KR100657087B1 (ko) | 2006-12-12 |
KR20060064177A (ko) | 2006-06-13 |
JP2006163349A (ja) | 2006-06-22 |
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