JP6513929B2 - 剥離方法 - Google Patents
剥離方法 Download PDFInfo
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- JP6513929B2 JP6513929B2 JP2014224177A JP2014224177A JP6513929B2 JP 6513929 B2 JP6513929 B2 JP 6513929B2 JP 2014224177 A JP2014224177 A JP 2014224177A JP 2014224177 A JP2014224177 A JP 2014224177A JP 6513929 B2 JP6513929 B2 JP 6513929B2
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- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
- B32B43/006—Delaminating
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
- H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/80—Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/08—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68757—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a coating or a hardness or a material
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- H—ELECTRICITY
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- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68381—Details of chemical or physical process used for separating the auxiliary support from a device or wafer
- H01L2221/68386—Separation by peeling
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- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K59/80—Constructional details
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- H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T156/1142—Changing dimension during delaminating [e.g., crushing, expanding, warping, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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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について図1〜図9を用いて説明する。
はじめに、作製基板101上に厚さ10nm未満の剥離層103を形成し、剥離層103上に被剥離層105を形成する(図1(A))。ここでは、島状の剥離層を形成する例を示したがこれに限られない。また、被剥離層105を島状に形成してもよい。
まず、剥離方法1と同様に、作製基板101上に厚さ10nm未満の剥離層103を形成し、剥離層103上に被剥離層105を形成する(図1(A))。そして、被剥離層105と基板109とを接合層107及び枠状の接合層111を用いて貼り合わせ、接合層107及び枠状の接合層111を硬化させる(図3(A))。
まず、作製基板201上に厚さ10nm未満の剥離層203を形成し、剥離層203上に被剥離層205を形成する(図4(A))。また、作製基板221上に剥離層223を形成し、剥離層223上に被剥離層225を形成する(図4(B))。
剥離方法4は、1回目の剥離工程までは剥離方法3と同様に行う。以降では、図5(D)の後の工程を詳述する。
本実施の形態では、本発明の一態様を適用して作製できるフレキシブルな発光装置について、図10〜図14を用いて説明する。
図10(A)に発光装置の平面図を示し、図10(B)、(C)に、図10(A)の一点鎖線X1−Y1間の断面図の一例を示す。図10(A)〜(C)に示す発光装置はボトムエミッション型の発光装置である。
図11(A)に発光装置の平面図を示し、図11(B)、(C)に、図11(A)の一点鎖線X2−Y2間の断面図の一例を示す。図11(A)〜(C)に示す発光装置はトップエミッション型の発光装置である。
図12(A1)に発光装置の平面図を示し、図12(B)に、図12(A1)の一点鎖線X3−Y3間の断面図を示す。図12(B)に示す発光装置は塗り分け方式を用いたトップエミッション型の発光装置である。本実施の形態において、発光装置は、例えば、R(赤)、G(緑)、B(青)の3色の発光ユニットで1つの色を表現する構成や、R(赤)、G(緑)、B(青)、W(白)の4色の発光ユニットで1つの色を表現する構成等が適用できる。色要素としては特に限定はなく、RGBW以外の色を用いてもよく、例えば、イエロー、シアン、マゼンタなどで構成されてもよい。
図12(A2)に発光装置の平面図を示し、図12(C)に、図12(A2)の一点鎖線X4−Y4間の断面図を示す。図12(C)に示す発光装置はカラーフィルタ方式を用いたボトムエミッション型の発光装置である。
図14(A1)に発光装置の平面図を示し、図14(B)に、図14(A1)の一点鎖線X5−Y5間の断面図を示す。図14(A1)に示す発光装置はカラーフィルタ方式を用いたトップエミッション型の発光装置である。
図14(A2)に発光装置の平面図を示し、図14(C)に、図14(A2)の一点鎖線X6−Y6間の断面図を示す。図14(A2)に示す発光装置はカラーフィルタ方式を用いたトップエミッション型の発光装置である。
次に、発光装置に用いることができる材料の一例を示す。
可撓性基板には、可撓性を有する材料を用いる。例えば、有機樹脂や可撓性を有する程度の厚さのガラスを用いることができる。さらに、発光装置における発光を取り出す側の基板には、可視光を透過する材料を用いる。可撓性基板が可視光を透過しなくてもよい場合、金属基板等も用いることができる。
接着層や接合層には、紫外線硬化型等の光硬化型接着剤、反応硬化型接着剤、熱硬化型接着剤、嫌気型接着剤などの各種硬化型接着剤を用いることができる。これら接着剤としてはエポキシ樹脂、アクリル樹脂、シリコーン樹脂、フェノール樹脂、ポリイミド樹脂、イミド樹脂、PVC(ポリビニルクロライド)樹脂、PVB(ポリビニルブチラル)樹脂、EVA(エチレンビニルアセテート)樹脂等が挙げられる。特に、エポキシ樹脂等の透湿性が低い材料が好ましい。また、二液混合型の樹脂を用いてもよい。また、接着シート等を用いてもよい。
絶縁層424や絶縁層226には、ガスバリア性の高い絶縁層を用いることが好ましい。また、接合層407と第2の電極403の間に、ガスバリア性の高い絶縁層が形成されていてもよい。
スペーサ496は、無機絶縁材料、有機絶縁材料、金属材料等を用いて形成することができる。例えば、無機絶縁材料や有機絶縁材料としては、上記絶縁層に用いることができる各種材料が挙げられる。金属材料としては、チタン、アルミニウムなどを用いることができる。導電材料を含むスペーサ496と第2の電極403とを電気的に接続させる構成とすることで、第2の電極403の抵抗に起因した電位降下を抑制できる。また、スペーサ496は、順テーパ形状であっても逆テーパ形状であってもよい。
本発明の一態様の発光装置に用いるトランジスタの構造は特に限定されない。例えば、スタガ型のトランジスタとしてもよいし、逆スタガ型のトランジスタとしてもよい。また、トップゲート型又はボトムゲート型のトランジスタのいずれのトランジスタ構造としてもよい。また、トランジスタに用いる材料についても特に限定されない。例えば、シリコンやゲルマニウム、酸化物半導体をチャネル形成領域に用いたトランジスタを適用することができる。半導体の結晶性については特に限定されず、非晶質半導体、又は結晶性を有する半導体(微結晶半導体、多結晶半導体、又は一部に結晶領域を有する半導体)のいずれを用いてもよい。結晶性を有する半導体を用いると、トランジスタ特性の劣化が抑制されるため好ましい。シリコンとしては、非晶質シリコン、単結晶シリコン、多結晶シリコン等を用いることができ、酸化物半導体としては、In−Ga−Zn−O系金属酸化物等を用いることができる。
本発明の一態様の発光装置に用いる有機EL素子の構造は特に限定されない。トップエミッション構造の有機EL素子を用いてもよいし、ボトムエミッション構造の有機EL素子を用いてもよいし、デュアルエミッション構造の有機EL素子を用いてもよい。
着色層は特定の波長帯域の光を透過する有色層である。例えば、赤色の波長帯域の光を透過する赤色(R)のカラーフィルタ、緑色の波長帯域の光を透過する緑色(G)のカラーフィルタ、青色の波長帯域の光を透過する青色(B)のカラーフィルタなどを用いることができる。各着色層は、様々な材料を用いて、印刷法、インクジェット法、フォトリソグラフィ法を用いたエッチング方法などでそれぞれ所望の位置に形成する。
トランジスタの電極や配線、又は有機EL素子の補助電極や補助配線等として機能する導電層は、例えば、モリブデン、チタン、クロム、タンタル、タングステン、アルミニウム、銅、ネオジム、スカンジウム等の金属材料又はこれらの元素を含む合金材料を用いて、単層で又は積層して形成することができる。また、導電層は、導電性の金属酸化物を用いて形成してもよい。導電性の金属酸化物としては酸化インジウム(In2O3等)、酸化スズ(SnO2等)、酸化亜鉛(ZnO)、ITO、インジウム亜鉛酸化物(In2O3−ZnO等)又はこれらの金属酸化物材料に酸化シリコンを含ませたものを用いることができる。
光取り出し構造としては、半球レンズ、マイクロレンズアレイ、凹凸構造が施されたフィルム、光拡散フィルム等を用いることができる。例えば、基板上に上記レンズやフィルムを、該基板又は該レンズもしくはフィルムと同程度の屈折率を有する接着剤等を用いて接着することで、光取り出し構造を形成することができる。
接続体497としては、熱硬化性の樹脂に金属粒子を混ぜ合わせたペースト状又はシート状の、熱圧着によって異方性の導電性を示す材料を用いることができる。金属粒子としては、例えばニッケル粒子を金で被覆したものなど、2種類以上の金属が層状となった粒子を用いることが好ましい。
本実施の形態では、本発明の一態様の剥離方法を適用して作製できる電子機器及び照明装置について、図9(D)〜(I)、及び図15を用いて説明する。
本実施の形態では、本発明の一態様の剥離方法について図16を用いて説明する。
まず、剥離層103上に、厚さ約600nmの第1の酸化窒化シリコン膜303を形成した。第1の酸化窒化シリコン膜303は、プラズマCVD法にて、シランガスとN2Oガスの流量をそれぞれ75sccm、1200sccmとし、電源電力120W、圧力70Pa、基板温度330℃の条件で形成した。
第1の酸化窒化シリコン膜303は構成1と同様に形成した。絶縁層305は、第2の窒化シリコン膜の単層構造である。
第1の酸化窒化シリコン膜303は構成1と同様に形成した。絶縁層305は、第1の窒化シリコン膜の単層構造である。
103 剥離層
105 被剥離層
107 接合層
109 基板
111 接合層
113 樹脂層
150 被剥離層を含む層
151 テープ
153 サポートローラ
154 ガイドローラ
171 試料
173 水蒸気充填室
175 水蒸気透過室
181 ガラス基板
183 剥離層
185 絶縁層
187 素子層
189 保護層
191 接合層
193 ガラス基板
195 接合層
197 樹脂基板
201 作製基板
203 剥離層
205 被剥離層
207 接合層
211 接合層
221 作製基板
223 剥離層
225 被剥離層
226 絶縁層
231 基板
233 接合層
235 接合層
301 下地膜
303 酸化窒化シリコン膜
305 絶縁層
310 携帯情報端末
311 表示パネル
313 ヒンジ
315 筐体
330 携帯情報端末
333 表示部
335 筐体
336 筐体
337 情報
339 操作ボタン
340 携帯情報端末
373 タングステン膜
374 酸化タングステン膜
376 層
390 封止樹脂
392 絶縁層
394 接着層
396 基板
401 電極
402 EL層
403 電極
404 接合層
404a 接合層
404b 接合層
405 絶縁層
406 導電層
407 接合層
408 導電層
409 構造
410 導電層
411 拡散板
413 タッチセンサ
416 導電層
419 可撓性基板
420 可撓性基板
422 接着層
424 絶縁層
426 接着層
428 可撓性基板
431 遮光層
432 着色層
435 導電層
441 導電層
442 導電層
443 絶縁層
444 可撓性基板
445 FPC
450 有機EL素子
453 オーバーコート
454 トランジスタ
455 トランジスタ
457 導電層
463 絶縁層
465 絶縁層
467 絶縁層
491 発光部
493 駆動回路部
495 FPC
496 スペーサ
497 接続体
7100 携帯情報端末
7101 筐体
7102 表示部
7103 バンド
7104 バックル
7105 操作ボタン
7106 入出力端子
7200 照明装置
7201 台部
7202 発光部
7203 操作スイッチ
7210 照明装置
7212 発光部
7220 照明装置
7222 発光部
7300 表示装置
7301 筐体
7302 表示部
7303 操作ボタン
7304 部材
7305 制御部
7400 携帯電話機
7401 筐体
7402 表示部
7403 操作ボタン
7404 外部接続ポート
7405 スピーカ
7406 マイク
Claims (5)
- 基板上に、厚さ0.1nm以上10nm未満の剥離層を形成する第1の工程と、
前記剥離層上に、前記剥離層と接する第1の層を含む被剥離層を形成する第2の工程と、
前記剥離層及び前記被剥離層と重ねて、第1の接合層、及び前記第1の接合層を囲う枠状の第2の接合層を硬化する第3の工程と、
前記第2の接合層及び前記被剥離層に切り込みを入れて、剥離の起点を形成する第4の工程と、
前記剥離層と前記被剥離層とを分離する第5の工程と、を有する剥離方法。 - 基板上に、厚さ0.1nm以上10nm未満の剥離層を形成する第1の工程と、
前記剥離層上に、前記剥離層と接する第1の層を含む被剥離層を形成する第2の工程と、
前記剥離層及び前記被剥離層と重ねて、第1の接合層、及び前記第1の接合層を囲う枠状の第2の接合層を硬化する第3の工程と、
前記第2の接合層の外側に樹脂層を設ける第4の工程と、
前記第2の接合層と重なる前記剥離層と前記第1の層の一部を分離し、剥離の起点を形成する第5の工程と、
前記剥離層と前記被剥離層とを分離する第6の工程と、を有する剥離方法。 - 請求項2において、
前記樹脂層は、半硬化状態又は未硬化状態を有する剥離方法。 - 請求項1乃至請求項3のいずれか一において、
前記第2の工程では、前記被剥離層として、
応力が負の値である、前記第1の層と、
応力が負の値である、前記第1の層上の第2の層と、を少なくとも形成する剥離方法。 - 請求項4において、
前記第1の層として酸化物絶縁膜を形成し、
前記第2の層として窒化物絶縁膜を形成する剥離方法。
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