JP6763703B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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- H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
- H10F30/21—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation
- H10F30/22—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes
- H10F30/227—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes the potential barrier being a Schottky barrier
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Description
図1は、本発明の実施形態に係る半導体装置1の構成を示す断面図である。半導体装置1は、サファイヤ基板10上の第1の領域R1に設けられたシリコン層20と、サファイヤ基板10上の第1の領域R1に隣接する第2の領域R2に設けられた酸化物半導体層30とを有する。シリコン層20は、主としてシリコンで構成されており、酸化物半導体層30は、主として酸化物半導体で構成されている。
上記の第1の実施形態に係る半導体装置の製造方法は、ストッパー膜501および犠牲膜502を用いたリフトオフ法によりシリコン層20を覆う第1の絶縁膜208上に堆積した酸化物半導体Xを除去する工程を含むものであった。これに対し、本発明の第2の実施形態に係る製造方法は、シリコン層20を覆う第1の絶縁膜208上への酸化物半導体Xの堆積を抑制するための工程を含む。
図11Aおよび図11Bは、それぞれ、本発明の第3の実施形態に係る半導体装置2の構成を示す平面図及び断面図である。半導体装置2は、サファイヤ基板10上の第1の領域R1においてシリコン層20に形成されるシリコンデバイスとして、集積回路600および第1の受光素子601を含む。また、半導体装置2は、サファイヤ基板10上の第2の領域R2において酸化物半導体層30に形成される酸化物半導体デバイスとして、第2の受光素子602を含む。
10 サファイヤ基板
20 シリコン層
30 酸化物半導体層
40 絶縁分離膜
51、52 配線
200 シリコンデバイス
220 制御回路
230 露出部
300 酸化物半導体デバイス
300a MESFET
300b SBD
300c MOSFET
330 パワートランジスタ
601 第1の受光素子
602 第2の受光素子
R1 第1の領域
R2 第2の領域
Claims (14)
- コランダム型の結晶構造を有する基板と、
前記基板の表面の第1の領域に設けられたシリコン層と、
前記基板の表面の前記第1の領域に隣接する第2の領域に設けられたコランダム型の結晶構造を有する酸化物半導体層と、
前記第1の領域において、前記酸化物半導体層を構成する酸化物半導体と同一の酸化物半導体が前記基板上に堆積したダミー部と、
を含む半導体装置。 - 前記基板はサファイヤ基板であり、
前記酸化物半導体層は、酸化ガリウムを含む
請求項1に記載の半導体装置。 - 前記シリコン層と前記酸化物半導体層とは、絶縁体を介して接している
請求項1または請求項2に記載の半導体装置。 - 前記シリコン層に形成されたシリコンデバイスと、
前記酸化物半導体層に形成された酸化物半導体デバイスと、
前記シリコンデバイスと前記酸化物半導体デバイスとを接続する配線と、を
を含む
請求項1から請求項3のいずれか1項に記載の半導体装置。 - 前記シリコンデバイスは、前記酸化物半導体デバイスを制御する制御回路を構成する
請求項4に記載の半導体装置。 - 前記酸化物半導体デバイスは、前記酸化物半導体層との間でショットキー接合を形成するゲートを含む電界効果トランジスタである
請求項4または請求項5に記載の半導体装置。 - 前記酸化物半導体デバイスは、絶縁膜を間に挟んで前記酸化物半導体層の表面に設けられたゲートを含む電界効果トランジスタである
請求項4または請求項5に記載の半導体装置。 - 前記シリコン層に設けられた複数のシリコンデバイスを含み、
前記シリコンデバイス同士の間の領域に前記ダミー部が設けられている
請求項1から請求項7のいずれか1項に記載の半導体装置。 - 前記シリコン層に形成された第1の受光素子と、
前記酸化物半導体層に形成された第2の受光素子と、
を含む
請求項1から請求項3のいずれか1項に記載の半導体装置。 - 前記シリコン層に形成され且つ前記第1の受光素子によって生成された光電流および前記第2の受光素子によって生成された光電流を検出する検出回路を更に含む
請求項9に記載の半導体装置。 - コランダム型の結晶構造を有する基板の表面に設けられたシリコン層の第1の領域にシリコンデバイスを形成する工程と、
前記シリコン層の前記第1の領域に隣接する第2の領域を除去して前記基板の表面を部分的に露出させる工程と、
前記基板の露出部分にコランダム型の結晶構造を有する酸化物半導体層を形成する工程と、
前記酸化物半導体層に酸化物半導体デバイスを形成する工程と、
前記酸化物半導体層を形成する前に、前記シリコン層の前記第1の領域内に前記基板の表面を部分的に露出させた露出部を形成する工程と、
前記基板の露出部に前記酸化物半導体層を構成する酸化物半導体と同一の酸化物半導体を堆積してダミー部を形成する工程と、
を含む
半導体装置の製造方法。 - 前記シリコンデバイスと前記酸化物半導体デバイスとを配線で接続する工程をさらに含む
請求項11に記載の半導体装置の製造方法。 - 前記酸化物半導体層を形成する前に、前記シリコン層を覆う少なくとも1層からなる膜を形成する工程と、
前記酸化物半導体層を形成した後に、前記膜を除去する工程と、
を含む請求項11または請求項12に記載の製造方法。 - 前記膜は、ストッパー膜および犠牲膜を含んで構成され、
前記膜を除去する工程は、前記犠牲膜をエッチングする第1のエッチング工程と、前記ストッパー膜をエッチングする第2の工程とを含み、
前記ストッパー膜は、前記犠牲膜のエッチングに用いられるエッチャントに対するエッチングレートが前記犠牲膜よりも低い
請求項13に記載の製造方法。
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| JP2016121190A JP6763703B2 (ja) | 2016-06-17 | 2016-06-17 | 半導体装置および半導体装置の製造方法 |
| US15/624,617 US10497726B2 (en) | 2016-06-17 | 2017-06-15 | Semiconductor device having silicon devices in a silicon layer and oxide semiconductor devices in an oxide semiconductor layer of a same chip and semiconductor device manufacturing method |
| CN201710456077.3A CN107527922B (zh) | 2016-06-17 | 2017-06-16 | 半导体装置以及半导体装置的制造方法 |
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| JP7245788B2 (ja) | 2018-02-01 | 2023-03-24 | 株式会社半導体エネルギー研究所 | 表示装置 |
| TWI897850B (zh) * | 2018-07-12 | 2025-09-21 | 日商Flosfia股份有限公司 | 半導體裝置和半導體系統 |
| TWI879736B (zh) * | 2018-07-12 | 2025-04-11 | 日商Flosfia股份有限公司 | 半導體裝置和半導體系統 |
| JP7404594B2 (ja) * | 2018-07-12 | 2023-12-26 | 株式会社Flosfia | 半導体装置および半導体装置を含む半導体システム |
| TW202006945A (zh) * | 2018-07-12 | 2020-02-01 | 日商Flosfia股份有限公司 | 半導體裝置和半導體系統 |
| JP7612144B2 (ja) * | 2019-05-23 | 2025-01-14 | 株式会社Flosfia | 半導体装置 |
| JP7676688B2 (ja) * | 2019-05-23 | 2025-05-15 | 株式会社Flosfia | 半導体装置 |
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| US10497726B2 (en) | 2019-12-03 |
| US20170365629A1 (en) | 2017-12-21 |
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