JP2008147640A - 半導体装置および半導体装置の作製方法 - Google Patents
半導体装置および半導体装置の作製方法 Download PDFInfo
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- JP2008147640A JP2008147640A JP2007294261A JP2007294261A JP2008147640A JP 2008147640 A JP2008147640 A JP 2008147640A JP 2007294261 A JP2007294261 A JP 2007294261A JP 2007294261 A JP2007294261 A JP 2007294261A JP 2008147640 A JP2008147640 A JP 2008147640A
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
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- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/84—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body
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- H—ELECTRICITY
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Abstract
【解決手段】絶縁表面を有する基板10上に形成された第1の電極11と、第1の電極11の側壁部に形成されたサイドウォール絶縁層12と、第1の電極11上及びサイドウォール絶縁層12を覆って形成されたシリコン膜13と、シリコン膜13上に形成された第2の電極14と、を有し、第1の電極11又は第2の電極14は、シリコン膜13と合金化する材料で形成されているメモリ素子を複数有している。
【選択図】図1
Description
本実施の形態において、陽極又は陰極として機能する導電層の側壁部にサイドウォール絶縁層を有するメモリ素子の構成について説明する。
本実施の形態において、実施の形態1で示したメモリ素子を有する半導体装置の作製工程について図面を用いて説明する。本実施の形態では、メモリ素子を有する半導体装置の例として外部と無線通信が可能な無線チップについて説明する。
本発明を用いた半導体装置の構成例について、図9を参照して説明する。図9に示すように、本発明の半導体装置1520は、非接触でデータを交信する機能を有し、電源回路1511、クロック発生回路1512、データ復調/変調回路1513、他の回路を制御する制御回路1514、インターフェイス回路1515、記憶回路1516、データバス1517、アンテナ1518、センサ1523a、センサ回路1523bを有する。図9において、駆動回路とは、電源回路1511、クロック発生回路1512、データ復調/変調回路1513、他の回路を制御する制御回路1514、及びインターフェイス回路1515を指している。
本発明により無線チップとして機能する半導体装置1520を形成することができる。無線チップの用途は広範にわたるが、例えば、紙幣、硬貨、有価証券類、無記名債券類、証書類(運転免許証や住民票等、図10(A))、包装用容器類(包装紙やボトル等、図10(C))、記録媒体(DVDソフトやビデオテープ等、図10(B))、乗物類(自転車等、図10(D))、身の回り品(鞄や眼鏡等)、食品類、植物類、動物類、衣類、生活用品類、電子機器等の商品や荷物の荷札(図10(E)、図10(F))等の物品に設けて使用することができる。電子機器とは、液晶表示装置、EL表示装置、テレビジョン装置(単にテレビ、テレビ受像機、テレビジョン受像機とも呼ぶ)及び携帯電話等を指す。
また、本発明の半導体装置はワード線やビット線となる配線の交点部分にメモリ素子を作製しても書き込み特性のばらつきを抑えることができるため、小型化、高集積化が容易である。それによって、大容量の記憶回路を有する半導体装置を用いた電子機器を提供することができる。
11 電極
12 サイドウォール絶縁層
13 シリコン膜
14 電極
21 領域
Claims (25)
- 絶縁表面を有する基板上に形成された第1の電極と、
前記第1の電極の側壁部に形成されたサイドウォール絶縁層と、
前記第1の電極上及び前記サイドウォール絶縁層を覆って形成された半導体層と、
前記半導体層上に形成された第2の電極と、を有し、
前記第1の電極又は前記第2の電極は、前記半導体層と合金化する材料で形成されている半導体装置。 - 絶縁表面を有する基板上に形成された複数の薄膜トランジスタ、及び複数のメモリ素子を有し、
前記メモリ素子は、前記絶縁表面を有する基板上に形成された第1の電極と、前記第1の電極の側壁部に形成された第1のサイドウォール絶縁層と、前記第1の電極上及び前記第1のサイドウォール絶縁層を覆って形成された半導体層と、前記半導体層上に形成された第2の電極と、を有し、
前記薄膜トランジスタのゲート電極は、前記メモリ素子の第1の電極と同じ材料であり、
前記薄膜トランジスタのソース電極又はドレイン電極は、前記メモリ素子の第2の電極と同じ材料であり、
前記メモリ素子の第1の電極又は前記メモリ素子の第2の電極は、前記半導体層と合金化する材料で形成されている半導体装置。 - 絶縁表面を有する基板上に形成された複数の薄膜トランジスタ、複数のメモリ素子、及びアンテナを有し、
前記メモリ素子は、前記絶縁表面を有する基板上に形成された第1の電極と、前記第1の電極の側壁部に形成された第1のサイドウォール絶縁層と、前記第1の電極上及び前記第1のサイドウォール絶縁層を覆って形成された半導体層と、前記半導体層上に形成された第2の電極と、を有し、
前記薄膜トランジスタのゲート電極は、前記メモリ素子の第1の電極と同じ材料であり、
前記アンテナは、該アンテナの下方に位置する接続電極と電気的に接続し、
前記接続電極は、前記薄膜トランジスタと電気的に接続し、前記薄膜トランジスタのソース電極又はドレイン電極と同じ材料であり、且つ、前記メモリ素子の第2の電極と同じ材料であり、
前記メモリ素子の第1の電極又は前記メモリ素子の第2の電極は、前記半導体層と合金化する材料で形成されている半導体装置。 - 請求項2又は請求項3において、
さらに、前記ゲート電極の側壁部に形成された第2のサイドウォール絶縁層を有する半導体装置。 - 請求項1乃至請求項4のいずれか一項において、
前記サイドウォール絶縁層は、湾曲している面を有し、該湾曲している面で前記半導体層と接している半導体装置。 - 請求項1乃至請求項5のいずれか一項において、
前記第1の電極又は前記第2の電極は、Ti、W、Ni、Cr、Mo、Ta、Co、Zr、V、Pd、Hf、Pt、Feから選ばれる少なくとも一の元素を含む材料からなる半導体装置。 - 請求項1乃至請求項6のいずれか一項において、
前記絶縁表面を有する基板は、ガラス基板、プラスチック基板、半導体基板、又は紙である半導体装置。 - 絶縁表面を有する基板上に第1の電極を形成し、
前記第1の電極の側壁部にサイドウォール絶縁層を形成し、
前記第1の電極上及び前記サイドウォール絶縁層を覆って半導体層を形成し、
前記半導体層上に第2の電極を形成し、
前記第1の電極又は前記第2の電極を、前記半導体層と合金化する材料で形成する半導体装置の作製方法。 - 請求項8において、
前記サイドウォール絶縁層を、湾曲している面を有するように形成する半導体装置の作製方法。 - 請求項8又は請求項9において、
前記半導体層を、前記サイドウォール絶縁層の湾曲している面で接するように形成する半導体装置の作製方法。 - 同一基板上に複数の薄膜トランジスタと、複数のメモリ素子とを有する半導体装置の作製方法であって、
絶縁表面を有する基板上に第1の半導体層及び第2の半導体層を形成し、
前記第1の半導体層及び前記第2の半導体層上に第1の絶縁膜を形成し、
前記第1の半導体層上に前記第1の絶縁膜を介して第1の電極を形成し、
前記第2の半導体層上に前記第1の絶縁膜を介して第2の電極を形成し、
前記第2の電極の側壁部に第1のサイドウォール絶縁層を形成し、
前記第1の電極、前記第2の電極、及び前記第1のサイドウォール絶縁層を覆う第2の絶縁膜を形成し、
前記第2の絶縁膜をエッチングして、前記第2の電極、前記第1のサイドウォール絶縁層及び前記第2の半導体層を露出する第1の開口を形成し、
前記第2の電極上及び前記第1のサイドウォール絶縁層を覆って第3の半導体層を形成し、
前記第2の絶縁膜をエッチングして前記第1の半導体層の一部を露出する第2の開口を形成し、
前記第2の半導体層上に第3の電極を形成し、
前記第1の半導体層上に第4の電極を形成し、
前記第2の電極又は前記第3の電極を、前記第3の半導体層と合金化する材料で形成する半導体装置の作製方法。 - 請求項11において、
前記第1のサイドウォール絶縁層を、湾曲している面を有するように形成する半導体装置の作製方法。 - 請求項11又は請求項12において、
前記第3の半導体層を、前記第1のサイドウォール絶縁層の湾曲している面で接するように形成する半導体装置の作製方法。 - 請求項11乃至請求項13のいずれか一項において、
前記第1の電極及び前記第2の電極を、同一工程で形成する半導体装置の作製方法。 - 請求項11乃至請求項14のいずれか一項において、
前記第3の電極及び前記第4の電極を、同一工程で作製する半導体装置の作製方法。 - 請求項11乃至請求項15のいずれか一項において、
前記第1の電極の側壁部に第2のサイドウォール絶縁層を、前記第1のサイドウォール絶縁層と同一工程で作製する半導体装置の作製方法。 - 請求項11乃至請求項16のいずれか一項において、
前記第3の電極及び前記第4の電極の形成と同じ工程で前記第2の絶縁膜上に第5の電極を形成し、
さらに、前記第5の電極上に前記第5の電極と電気的に接続するアンテナを形成する半導体装置の作製方法。 - 請求項11乃至請求項17のいずれか一項において、
前記メモリ素子を、前記第2の電極と、前記第3の半導体層と、前記第3の電極とで構成する半導体装置の作製方法。 - 請求項11乃至請求項18のいずれか一項において、
前記薄膜トランジスタを、前記第1の半導体層と、前記第1の電極と、前記第4の電極とで構成する半導体装置の作製方法。 - 請求項11乃至請求項19のいずれか一項において、
前記第1の電極は、前記薄膜トランジスタのゲート電極であり、前記第1の絶縁膜は、ゲート絶縁膜であり、前記第4の電極はソース電極又はドレイン電極である半導体装置の作製方法。 - 請求項8乃至請求項20のいずれか一項において、
前記絶縁表面を有する基板は、ガラス基板、プラスチック基板、半導体基板、又は紙である半導体装置の作製方法。 - 絶縁表面を有する基板上に形成された第1の電極と、
前記第1の電極の側壁部に形成されたサイドウォール絶縁層と、
前記第1の電極上及び前記サイドウォール絶縁層を覆って形成された半導体層と、
前記半導体層上に形成された第2の電極と、を有し、
前記第1の電極と前記第2の電極との間に電圧を印加し、
前記第1の電極又は前記第2の電極と、前記半導体層とを合金化する半導体装置の駆動方法。 - 請求項22において、
前記サイドウォール絶縁層は、湾曲している面を有し、該湾曲している面で前記半導体層と接している半導体装置の駆動方法。 - 請求項22又は請求項23において、
前記第1の電極又は前記第2の電極は、Ti、W、Ni、Cr、Mo、Ta、Co、Zr、V、Pd、Hf、Pt、Feから選ばれる少なくとも一の元素を含む材料からなる半導体装置の駆動方法。 - 請求項22乃至請求項24のいずれか一項において、
前記絶縁表面を有する基板は、ガラス基板、プラスチック基板、半導体基板、又は紙である半導体装置の駆動方法。
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US20080116500A1 (en) | 2008-05-22 |
KR20080044763A (ko) | 2008-05-21 |
US8759946B2 (en) | 2014-06-24 |
JP5376706B2 (ja) | 2013-12-25 |
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