JP5127288B2 - 半導体装置の作製方法 - Google Patents
半導体装置の作製方法 Download PDFInfo
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- JP5127288B2 JP5127288B2 JP2007114570A JP2007114570A JP5127288B2 JP 5127288 B2 JP5127288 B2 JP 5127288B2 JP 2007114570 A JP2007114570 A JP 2007114570A JP 2007114570 A JP2007114570 A JP 2007114570A JP 5127288 B2 JP5127288 B2 JP 5127288B2
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78618—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
-
- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66757—Lateral single gate single channel transistors with non-inverted structure, i.e. the channel layer is formed before the gate
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- Ceramic Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
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- Non-Volatile Memory (AREA)
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Description
本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製方法を、図1、図3、及び図4を用いて詳細に説明する。
本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製工程において、半導体層の他の作製方法を、図2及び図19を用いて説明する。なお、実施の形態1と同一部分又は同様な機能を有する部分の繰り返しの説明は省略する。
本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製工程において、半導体層の他の作製方法を、図5乃至図7を用いて説明する。なお、実施の形態1と同一部分又は同様な機能を有する部分の繰り返しの説明は省略する。
本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製方法の一例としてCMOS(相補型金属酸化物半導体:Complementary Metal Oxide Semiconductor)に関して図8及び図9を用いて説明する。なお、実施の形態1と同一部分又は同様な機能を有する部分の繰り返しの説明は省略する。
本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製方法の一例としてシリサイドを有するCMOSに関して図10を用いて説明する。なお、実施の形態1と同一部分又は同様な機能を有する部分の繰り返しの説明は省略する。
本実施の形態は、本実施の形態では、高速動作が可能で駆動電圧の低い半導体素子を有する低消費電力な半導体装置を、複雑な工程を経ることなく作製することを目的とした半導体装置の作製方法の一例として不揮発性半導体記憶装置の一例に関して図17を用いて説明する。
本発明に係る半導体装置は、CPU(中央演算回路:Central Processing Unit)等の集積回路に適用することができる。本実施の形態では、実施の形態1乃至6に示した半導体装置を適用したCPUの例に関して、図面を用いて以下に説明する。
本実施の形態では、上記実施の形態で示した半導体装置の使用形態の一例について説明する。具体的には、非接触でデータの入出力が可能である半導体装置の適用例に関して、図面を用いて以下に説明する。非接触でデータの入出力が可能である半導体装置は利用の形態によって、RFIDタグ、IDタグ、ICタグ、ICチップ、RFタグ、無線タグ、電子タグまたは無線チップとも呼ばれる。
本実施の形態では、上述した本発明を用いて形成された非接触でデータの入出力が可能である半導体装置の適用例に関して図面を参照して以下に説明する。非接触でデータの入出力が可能である半導体装置は利用の形態によっては、RFIDタグ、IDタグ、ICタグ、ICチップ、RFタグ、無線タグ、電子タグまたは無線チップともよばれる。
本発明によりプロセッサ回路を有するチップ(以下、プロセッサチップ、無線チップ、無線プロセッサ、無線メモリ、無線タグともよぶ)として機能する半導体装置を形成することができる。本発明の半導体装置の用途は広範にわたり、非接触で対象物の履歴等の情報を明確にし、生産・管理等に役立てる商品であればどのようなものにも適用することができる。例えば、紙幣、硬貨、有価証券類、証書類、無記名債券類、包装用容器類、書籍類、記録媒体、身の回り品、乗物類、食品類、衣類、保健用品類、生活用品類、薬品類及び電子機器等に設けて使用することができる。これらの例に関して図13を用いて説明する。
Claims (6)
- 基板上に絶縁膜を形成し、
前記絶縁膜上に第1の半導体層を形成し、
前記第1の半導体層に、前記絶縁膜に達する開口を形成し、
前記開口及び第1の半導体層にレーザ光を照射することにより、前記開口において前記第1の半導体層の端部を溶融し、前記溶融した第1の半導体層の一部を開口の前記絶縁膜上に流動させ前記開口を充填して第2の半導体層とし、前記開口であった領域の第2の半導体層は前記開口であった領域の周辺の第2の半導体層よりも薄く、
前記第2の半導体層において、
前記開口であった領域にチャネル形成領域を、
前記開口であった領域の周辺にソース領域及びドレイン領域を、形成することを特徴とする半導体装置の作製方法。 - 基板上に絶縁膜を形成し、
前記絶縁膜上に第1の半導体層を形成し、
前記第1の半導体層に、前記絶縁膜に達するスリット状の複数の開口を形成し、
前記複数の開口及び第1の半導体層にレーザ光を照射することにより、前記複数の開口において前記スリット状の複数の開口間の前記第1の半導体層を溶融し、前記溶融した第1の半導体層を複数の開口の前記絶縁膜上に流動させ前記複数の開口を充填して第2の半導体層とし、前記複数の開口であった領域の第2の半導体層は前記複数の開口であった領域の周辺の第2の半導体層よりも薄く、
前記第2の半導体層において、
前記複数の開口であった領域にチャネル形成領域を、
前記複数の開口であった領域の周辺にソース領域及びドレイン領域を、形成することを特徴とする半導体装置の作製方法。 - 請求項1において、前記レーザ光は照射領域に対してエネルギー強度分布を有し、前記第1の半導体層の前記開口周辺に照射される前記レーザ光のエネルギーが一番大きいことを特徴とする半導体装置の作製方法。
- 請求項2において、前記レーザ光は照射領域に対してエネルギー強度分布を有し、前記第1の半導体層の前記スリット状の複数の開口周辺に照射される前記レーザ光のエネルギーが一番大きいことを特徴とする半導体装置の作製方法。
- 請求項1乃至4のいずれか一項において、前記第2の半導体層にレーザ光を照射することを特徴とする半導体装置の作製方法。
- 請求項5において、前記第1の半導体層は非晶質半導体層であることを特徴とする半導体装置の作製方法。
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