Semiconductor device and manufacturing method thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-021/30
H01L-021/02
출원번호
UP-0713606
(2007-03-05)
등록번호
US-7547612
(2009-07-01)
우선권정보
JP-2002-316397(2002-10-30)
발명자
/ 주소
Yamazaki, Shunpei
Takayama, Toru
Maruyama, Junya
Ohno, Yumiko
출원인 / 주소
Semiconductor Energy Laboratory Co., Ltd.
대리인 / 주소
Robinson, Eric J.
인용정보
피인용 횟수 :
10인용 특허 :
71
초록▼
It is an object of the present invention to provide a peeling method that causes no damage to a layer to be peeled and to allow not only a layer to be peeled with a small surface area but also a layer to be peeled with a large surface area to be peeled entirely. Further, it is also an object of the
It is an object of the present invention to provide a peeling method that causes no damage to a layer to be peeled and to allow not only a layer to be peeled with a small surface area but also a layer to be peeled with a large surface area to be peeled entirely. Further, it is also an object of the present invention to bond a layer to be peeled to various base materials to provide a lighter semiconductor device and a manufacturing method thereof. Particularly, it is an object to bond various elements typified by a TFT, (a thin film diode, a photoelectric conversion element comprising a PIN junction of silicon, or a silicon resistance element) to a flexible film to provide a lighter semiconductor device and a manufacturing method thereof. When a metal layer 11 is provided over a substrate, an oxide layer 12 is provided in contact with the metal layer 11, a layer to be peeled 13 is formed, and the metal layer 11 is irradiated with a laser beam to perform oxidization and form a metal oxide layer 16, a clear separation is possible with a physical means within the metal oxide layer 12 or at an interface between the metal oxide layer 16 and the oxide layer 12.
대표청구항▼
The invention claimed is: 1. A method of manufacturing a semiconductor device, comprising: forming an insulator layer over a substrate; forming a metal layer on and in contact with the insulator layer; removing a portion of the metal layer formed over a peripheral portion of the substrate; forming
The invention claimed is: 1. A method of manufacturing a semiconductor device, comprising: forming an insulator layer over a substrate; forming a metal layer on and in contact with the insulator layer; removing a portion of the metal layer formed over a peripheral portion of the substrate; forming an oxide layer in contact with the metal layer, and a layer to be peeled including a semiconductor element above the oxide layer; and peeling the layer to be peeled after forming the layer to be peeled. 2. The method according to claim 1, further comprising: oxidizing the metal layer, wherein oxidizing the metal layer is conducted with heat treatment or compound treatment of irradiation of the laser beam and heat treatment. 3. The method according to claim 1, wherein oxidizing the metal layer is conducted with rapid thermal annealing. 4. The method according to claim 1, wherein the portion of the metal layer is removed with dry etching. 5. The method according to claim 1, wherein the metal layer is a single layer comprising an element selected from Ti, Ta, W, Mo, Cr, Nd, Fe, Ni, Go, Zr, and Zn, or one of an alloy material and a compound material including the element as its main component, or a lamination layer thereof. 6. The method according to claim 1, wherein the oxide layer in contact with the metal layer is a silicon oxide film formed by sputtering. 7. The method according to claim 1, wherein the substrate is a glass substrate: 8. The method according to claim 1, wherein the layer to be peeled includes a thin film transistor, a photoelectric conversion element comprising a PIN junction of silicon, an organic light-emitting element, an element comprising a liquid crystal, a memory element, a thin film diode, or a silicon resistor element. 9. A method of manufacturing a semiconductor device, comprising: forming an insulator layer over a substrate; forming a metal layer on and in contact with the insulator layer; removing a portion of the metal layer formed over a peripheral portion of the substrate; forming an oxide layer in contact with the metal layer, and a layer, to be peeled including a semiconductor element above the oxide layer; bonding a support to the layer to be peeled; and peeling the layer to be peeled after bonding the support. 10. The method according to claim 9, further comprising: oxidizing the metal layer after bonding the support, wherein oxidizing the metal layer is conducted with heat treatment or compound treatment of irradiation of the laser beam and heat treatment. 11. The method according to claim 9, further comprising: oxidizing the metal layer after bonding the support, wherein oxidizing the metal layer is conducted with rapid thermal annealing. 12. The method according to claim 9, wherein the portion of the metal layer is removed with dry etching. 13. The method according to claim 9, wherein the metal layer is a single layer comprising an element selected from Ti, Ta, W, Mo, Cr, Nd, Fe, Ni, Go, Zr, and Zn, or one of an alloy material and a compound material including the element as its main component, or a lamination layer thereof. 14. The method according to claim 9, wherein the oxide layer in contact with the metal layer is a silicon oxide film formed by sputtering. 15. The method according to claim 9, wherein the substrate is a glass substrate. 16. The method according to claim 9, wherein the layer to be peeled includes a thin film transistor, a photoelectric conversion element comprising a PIN junction of silicon, an organic light-emitting element, an element comprising a liquid crystal, a memory element, a thin film diode, or a silicon resistor element. 17. A method of manufacturing a semiconductor device, comprising: forming a silicon oxynitride layer over a substrate; forming a metal layer on and in contact with the silicon oxynitride layer; removing a portion of the metal layer formed over a peripheral portion of the substrate; forming a silicon oxide layer in contact with the metal layer, and a layer to be peeled including a semiconductor element above the silicon oxide layer; and peeling the layer to be peeled after forming the layer to be peeled. 18. The method according to claim 17, further comprising: oxidizing the metal layer, wherein oxidizing the metal layer is conducted with heat treatment or compound treatment of irradiation of the laser beam and heat treatment. 19. The method according to claim 17, further comprising: oxidizing the metal layer, wherein oxidizing the metal layer is conducted with rapid thermal annealing. 20. The method according to claim 17, wherein the portion of the metal layer is removed with dry etching. 21. The method according to claim 17, wherein the metal layer is a single layer comprising an element selected from Ti, Ta, W, Mo, Cr, Nd, Fe, Ni, Co, Zr, and Zn, or one of an alloy material and a compound material including the element as its main component, or a lamination layer thereof. 22. The method according to claim 17, wherein the substrate is a glass substrate. 23. The method according to claim 17, wherein the layer to be peeled includes a thin film transistor, a photoelectric conversion element comprising a PIN junction of silicon, an organic light-emitting element, an element comprising a liquid crystal, a memory element, a thin film diode, or a silicon resistor element.
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