摘要:
Provided are an electronic device and a method of manufacturing the same. The device includes a plastic substrate, a transparent thermal conductive layer stacked on the plastic substrate, a polysilicon layer stacked on the thermal conductive layer; and a functional device disposed on the polysilicon layer. The functional device is any one of a transistor, a light emitting device, and a memory device. The functional device may be a thin film transistor including a gate stack stacked on the polysilicon layer.
摘要:
A method of preparing a semiconductor film on a substrate is disclosed. The method includes arranging an insulating substrate in a deposition chamber and depositing a semiconductor film onto the insulating substrate using ion beam deposition, wherein a temperature of the insulating substrate during the depositing does not exceed 250° C. The method can produce a thin film transistor. The disclosed ion beam deposition method forms, at lower temperature and with low impurities, a film morphology with desired smoothness and grain size. Deposition of semiconductor films on low melting point substrates, such as plastic flexible substrates, is enables.
摘要:
A method of preparing a semiconductor film on a substrate is disclosed. The method includes arranging an insulating substrate in a deposition chamber and depositing a semiconductor film onto the insulating substrate using ion beam deposition, wherein a temperature of the insulating substrate during the depositing does not exceed 250° C. The method can produce a thin film transistor. The disclosed ion beam deposition method forms, at lower temperature and with low impurities, a film morphology with desired smoothness and grain size. Deposition of semiconductor films on low melting point substrates, such as plastic flexible substrates, is enables.
摘要:
Provided are an electronic device and a method of manufacturing the same. The device includes a plastic substrate, a transparent thermal conductive layer stacked on the plastic substrate, a polysilicon layer stacked on the thermal conductive layer; and a functional device disposed on the polysilicon layer. The functional device is any one of a transistor, a light emitting device, and a memory device. The functional device may be a thin film transistor including a gate stack stacked on the polysilicon layer.
摘要:
A method of fabricating a poly-Si thin film and a method of fabricating a poly-Si TFT using the same are provided. The poly-Si thin film is formed at a low temperature using inductively coupled plasma chemical vapor deposition (ICP-CVD). After the ICP-CVD, excimer laser annealing (ELA) is performed while increasing energy by predetermined steps. A poly-Si active layer and a SiO2 gate insulating layer are deposited at a temperature of about 150° C. using ICP-CVD. The poly-Si has a large grain size of about 3000 Å or more. An interface trap density of the SiO2 can be as high as 1011/cm2. A transistor having good electrical characteristics can be fabricated at a low temperature and thus can be formed on a heat tolerant plastic substrate.
摘要:
A method of fabricating a poly-Si thin film and a method of fabricating a poly-Si TFT using the same are provided. The poly-Si thin film is formed at a low temperature using ICP-CVD. After the ICP-CVD, ELA is performed while increasing energy by predetermined steps. A poly-Si active layer and a Si02 gate insulating layer are deposited at a temperature of about 150° C. using ICP-CVD. The poly-Si has a large grain size of about 3000 A or more. An interface trap density of the Si02 can be as high as lo∥/cm2. A transistor having good electrical characteristics can be fabricated at a low temperature and thus can be formed on a heat tolerant plastic substrate.
摘要:
A method of fabricating a poly-Si thin film and a method of fabricating a poly-Si TFT using the same are provided. The poly-Si thin film is formed at a low temperature using ICP-CVD. After the ICP-CVD, ELA is performed while increasing energy by predetermined steps. A poly-Si active layer and a SiO2 gate insulating layer are deposited at a temperature of about 150° C. using ICP-CVD. The poly-Si has a large grain size of about 3000 Å or more. An interface trap density of the SiO2 can be as high as 1011/cm2. A transistor having good electrical characteristics can be fabricated at a low temperature and thus can be formed on a heat tolerant plastic substrate.
摘要:
A semiconductor device including a substrate, a P-MOS single crystal TFT formed on the substrate, and an N-MOS single crystal TFT formed on the P-MOS single crystal TFT. The source region of the P-MOS single crystal TFT and the source region of the N-MOS single crystal TFT may be connected to each other. The P-MOS single crystal TFT and the N-MOS single crystal TFT may share a common gate. Also, the P-MOS single crystal TFT may include a single crystal silicon layer with a crystal plane of (100) and a crystal direction of . The N-MOS single crystal TFT may include a single crystal silicon layer having the same crystal direction as the single crystal silicon layer of the P-MOS single crystal TFT and having a tensile stress greater than the single crystal silicon layer of the P-MOS single crystal TFT.
摘要:
A thin film transistor and a method of manufacturing the thin film transistor. The thin film transistor may include a substrate, a buffer layer, a polysilicon layer, a gate insulating layer and/or a gate electrode, and a capping layer. The buffer layer may be formed on the substrate. The polysilicon layer may be formed on the buffer layer, and may include a first doped region, a second doped region, and a channel region. The gate insulating layer and a gate electrode may be sequentially stacked on the channel region of the polysilicon layer. The capping layer may be stacked on the gate electrode.
摘要:
A method of fabricating a poly crystalline silicon thin film transistor (TFT) is provided. The method includes the operations of forming a poly crystalline silicon having a source, a drain, and a channel region between the source and the drain on a substrate in a predetermined pattern; forming an insulating layer on the poly crystalline silicon; forming a silicon-based heat absorption material layer on the insulating layer; exposing the source and the drain by patterning the insulating layer and the heat absorption material layer and forming a gate and a gate insulating layer corresponding to the channel region; injecting impurities into the source, the drain, and the gate; and heat processing the gate insulating layer and the heat absorption material layer by applying thermal energy to the heat absorption material layer. In the heat treatment, the gate material absorbs some of the heat and passes the remaining heat. The heat treatment of the gate insulating layer under the gate can be performed efficiently.