JP7030475B2 - 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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- JP7030475B2 JP7030475B2 JP2017212354A JP2017212354A JP7030475B2 JP 7030475 B2 JP7030475 B2 JP 7030475B2 JP 2017212354 A JP2017212354 A JP 2017212354A JP 2017212354 A JP2017212354 A JP 2017212354A JP 7030475 B2 JP7030475 B2 JP 7030475B2
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- 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
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- H01L29/772—Field effect transistors
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- 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
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- 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
- H01L27/1248—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 with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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- 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
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- 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
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- 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
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- 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
- H01L29/78633—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 with a light shield
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- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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Description
本実施の形態では、本発明の一態様の剥離方法及び表示装置の作製方法について図1~図19を用いて説明する。
まず、作製基板14上に、金属酸化物層20を形成する(図5(A1))。または、作製基板14上に、金属層19と金属酸化物層20とを積層する(図5(A2))。金属酸化物層20(金属層19及び金属酸化物層20)は、島状に形成される。
次に、本実施の形態の表示装置の作製方法例について説明する。先に説明した剥離方法と同様の部分について、説明を省略することがある。
図12(A)は、表示装置10Aの上面図である。図12(B)、(C)は、それぞれ、表示装置10Aの表示部381の断面図及びFPC372との接続部の断面図の一例である。
まず、上記剥離方法と同様に、作製基板14上に、金属酸化物層20から絶縁層31までを形成する(図13(A))。図13(A)に示すように、金属酸化物層20は、樹脂層23で覆われている。そのため、金属酸化物層20と絶縁層31とが接する部分を低減する、さらには無くすことができる。これにより、表示装置の作製工程中の膜剥がれを抑制することができる。
図19(A)は、表示装置10Bの上面図である。図19(B)は、表示装置10Bの表示部381の断面図及びFPC372との接続部の断面図の一例である。
本実施の形態では、本発明の一態様を適用して作製することができる表示装置について図20~図25を用いて説明する。
本発明の一態様では、タッチセンサが搭載された表示装置(以下、入出力装置、タッチパネルとも記す)を作製することができる。
本実施の形態では、本発明の一態様で開示されるトランジスタに用いることができる金属酸化物について説明する。以下では特に、金属酸化物とCAC(Cloud-Aligned Composite)-OSの詳細について説明する。
本実施の形態では、本発明の一態様の電子機器について説明する。
10B 表示装置
13 接着層
14 作製基板
19 金属層
20 金属酸化物層
22 基板
23 樹脂層
24 第1の層
25 被剥離層
28 接着層
29 基板
31 絶縁層
32 絶縁層
33 絶縁層
34 絶縁層
35 絶縁層
37 領域
38 領域
39 保護膜
40 トランジスタ
41 導電層
43a 導電層
43b 導電層
43c 導電層
44 金属酸化物層
45 導電層
49 トランジスタ
55 レーザ光
60 発光素子
61 導電層
62 EL層
63 導電層
64 切れ目
65 器具
74 絶縁層
75 保護層
75a 基板
75b 接着層
76 接続体
80 トランジスタ
81 導電層
82 絶縁層
83 金属酸化物層
84 絶縁層
85 導電層
86a 導電層
86b 導電層
86c 導電層
91 作製基板
92 金属酸化物層
93 樹脂層
95 絶縁層
96 隔壁
97 着色層
98 遮光層
99 接着層
112 液晶層
113 電極
115 絶縁層
117 絶縁層
121 絶縁層
131 着色層
132 遮光層
133a 配向膜
133b 配向膜
134 着色層
135 偏光板
140 トランジスタ
141 接着層
142 接着層
170 発光素子
180 液晶素子
191 電極
192 EL層
193 電極
194 絶縁層
201 トランジスタ
203 トランジスタ
204 接続部
205 トランジスタ
206 トランジスタ
207 接続部
211 絶縁層
212 絶縁層
213 絶縁層
214 絶縁層
215 絶縁層
216 絶縁層
217 絶縁層
220 絶縁層
220a 絶縁層
220b 絶縁層
221a 導電層
221b 導電層
222a 導電層
222b 導電層
223 導電層
224 導電層
225 絶縁層
226 被覆膜
227 レンズ
228 導電層
231 半導体層
232 絶縁層
233 拡散フィルム
234a 導電層
234b 導電層
234c 絶縁層
234d 絶縁層
235 基板
242 接続層
243 接続体
252 接続部
300A 表示装置
310A 入出力装置
311a 電極
311b 電極
311c 電極
351 基板
361 基板
362 表示部
364 回路
365 配線
372 FPC
373 IC
381 表示部
382 駆動回路部
451 開口
640 加工領域
800 携帯情報端末
801 筐体
802 筐体
803 表示部
805 ヒンジ部
810 携帯情報端末
811 筐体
812 表示部
813 操作ボタン
814 外部接続ポート
815 スピーカ
816 マイク
817 カメラ
820 カメラ
821 筐体
822 表示部
823 操作ボタン
824 シャッターボタン
826 レンズ
9000 筐体
9001 表示部
9003 スピーカ
9005 操作キー
9006 接続端子
9007 センサ
9008 マイクロフォン
9055 ヒンジ
9200 携帯情報端末
9201 携帯情報端末
9202 携帯情報端末
Claims (13)
- 基板上に島状の金属酸化物層を形成する工程と、
前記金属酸化物層の端部を覆うように、前記金属酸化物層上に樹脂層を形成する工程と、
前記樹脂層上に前記樹脂層の端部を覆うように、第1の部分が第1の基板と接触し且つ第2の部分が前記樹脂層と接触する絶縁層を形成する工程と、
光を照射することで、前記第2の部分を含む前記絶縁層と前記金属酸化物層に接する前記樹脂層とを含む積層構造を前記金属酸化物層から分離する工程と、を有する、半導体装置の作製方法。 - 請求項1において、
前記樹脂層は、島状である、半導体装置の作製方法。 - 基板上に島状の金属酸化物層を形成する工程と、
前記金属酸化物層の端部を覆うように、前記金属酸化物層上に樹脂層を形成する工程と、
前記樹脂層上に前記樹脂層の端部を覆うように、第1の部分が第1の基板と接触し且つ第2の部分が前記樹脂層と接触する絶縁層を形成する工程と、
前記金属酸化物層及び前記樹脂層と重ねて、接着層を形成する工程と、
光を照射することで、前記接着層と前記第2の部分を含む前記絶縁層と前記金属酸化物層に接する前記樹脂層とを含む積層構造を前記金属酸化物層から分離する工程と、を有し、
前記接着層は、前記金属酸化物層の端部よりも内側に前記接着層の端部が位置するように形成される、半導体装置の作製方法。 - 請求項3において、
前記樹脂層は、島状である、半導体装置の作製方法。 - 請求項3または4において、
前記接着層を形成する工程の前に、前記樹脂層上に枠状の隔壁を形成する工程を有し、
前記接着層は、前記隔壁の内側に形成される、半導体装置の作製方法。 - 請求項1乃至5のいずれか一において、
前記樹脂層は、厚さが0.1μm以上5μm以下の領域を有する、半導体装置の作製方法。 - 請求項1乃至6のいずれか一において、
前記光として、レーザ光を用い、
前記レーザ光が、前記金属酸化物層と前記樹脂層との界面またはその近傍に照射されることにより、前記金属酸化物層と前記樹脂層とが分離する、半導体装置の作製方法。 - 請求項1乃至7のいずれか一において、
前記光は、180nm以上450nm以下の波長を有する、半導体装置の作製方法。 - 請求項1乃至8のいずれか一において、
前記光は、308nm又はその近傍の波長を有する、半導体装置の作製方法。 - 請求項1乃至9のいずれか一において、
前記光は、線状レーザ装置を用いて照射される、半導体装置の作製方法。 - 請求項1乃至10のいずれか一において、
前記光のエネルギー密度は、250mJ/cm2以上360mJ/cm2以下である、半導体装置の作製方法。 - 請求項1乃至11のいずれか一において、
前記金属酸化物層は、チタン、モリブデン、アルミニウム、タングステン、シリコン、インジウム、亜鉛、ガリウム、タンタル、及び錫のうち一つまたは複数を有する、半導体装置の作製方法。 - 請求項1乃至12のいずれか一において、
前記金属酸化物層は、チタン及び酸化チタンのうち一方または双方を有する、半導体装置の作製方法。
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