摘要:
An etching apparatus, for etching copper or silver, which includes a hydrogen peroxide tank, an ammonium hydroxide tank, a water tank, an etching tank, a piping system and a temperature control device, is provided. The piping system connects the hydrogen peroxide tank, the ammonium hydroxide tank, the water tank to the etching tank, and the temperature control device is disposed around the hydrogen peroxide tank, the ammonium hydroxide tank and the etching tank to maintain the temperatures of them below the room temperature and above 12 degree centigrade. An etching process is also provided. First, hydrogen peroxide and ammonium hydroxide having a temperature in a temperature-range below the room temperature and above 12 degree centigrade, is provided. Then, water, hydrogen peroxide and ammonium hydroxide are mixed to be an etchant with a temperature maintained in said temperature temperature-range. Next, the etchant is utilized for etching copper or silver.
摘要:
A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
摘要:
A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
摘要:
A thin film transistor is provided, including a substrate, a gate, a first dielectric layer, a channel layer, a source/drain and a second dielectric layer. The gate is disposed on the substrate, and the gate and the substrate are covered with the first dielectric layer. The channel layer is at least disposed on the first dielectric layer above the gate. The source/drain is disposed on the channel layer. The source/drain includes a first barrier layer, a conductive layer and a second barrier layer. The first barrier layer is disposed between the conductive layer and the channel layer. The conductive layer is covered with the first barrier layer and the second barrier layer. The source/drain is covered with the second dielectric layer. Accordingly, the variation of electric characters can be reduced. Moreover, a method for fabricating a thin film transistor is also provided.
摘要:
Aluminum gate electrode parasitic resistance and capacitance delay suffers performance, and even makes the signal loss to high-resolution and small-size requests for thin film transistor liquid crystal display. An important technology employed in manufacturing thin film transistor is to convert surface of glass substrate into a silicon nitride layer, and subsequently to plate with one of low resistant copper, silver, copper alloy and silver alloy, and finally to form the thin film transistor on the substrate.
摘要:
An organic thin film transistor including a substrate, a gate, a gate insulator, an adhesive layer, a metal nano-particle layer and an organic semiconductor layer is provided. The gate is disposed on the substrate. The gate insulator is disposed on the gate and the substrate. The adhesive layer is disposed on the gate insulator. Besides, the adhesive layer has a hydrophobic surface above the gate and a first hydrophilic surface and a second hydrophilic surface on two sides of the hydrophobic surface. A surface of the metal nano-particle layer is modified by a hydrophilic group, and the metal nano-particle layer is disposed on the first and the second hydrophilic surfaces of the adhesive layer as a source and a drain, respectively. The organic semiconductor layer is disposed on the hydrophobic surface of the adhesive layer and on the metal nano-particle layer.
摘要:
A method for fabricating a thin film transistor is provided. First, a gate is formed on a substrate. A gate-insulating layer is formed to cover the gate. A patterned semiconductor layer is formed on the gate-insulating layer. A first and a second conductive layer are formed on the patterned semiconductor layer in sequence. The second conductive layer is patterned such that each side of thereof above the gate has a taper profile and the first conductive layer is exposed. A first plasma process is performed to transform the surface and the taper profile of the second conductive layer into a first protection layer. The first conductive layer not covered by the first protection layer and the second conductive layer is removed to form a source/drain. The source/drain is with fine dimensions and the diffusion of metallic ions from the second conductive layer to the patterned semiconductor layer can be avoided.
摘要:
A thin film transistor including a substrate, a gate, a gate insulator layer, a semiconductor layer, an ohmic contact layer, a source and a drain is provided. The gate is disposed on the substrate while the gate insulator layer is disposed on the substrate and covers the gate. The semiconductor layer is disposed on the gate insulator layer above the gate. The semiconductor layer includes an undoped amorphous silicon layer and a first undoped microcrystalline silicon (μc-Si) layer, wherein the first undoped μc-Si layer is disposed on the undoped amorphous silicon layer. The ohmic contact layer is disposed on part of the semiconductor layer and the source and the drain are disposed on the ohmic contact layer. Therefore, the thin film transistor has better quality control and electrical characteristics.
摘要:
An organic thin film transistor including a substrate, a gate, a gate insulator, an adhesive layer, a metal nano-particle layer and an organic semiconductor layer is provided. The gate is disposed on the substrate. The gate insulator is disposed on the gate and the substrate. The adhesive layer is disposed on the gate insulator. Besides, the adhesive layer has a hydrophobic surface above the gate and a first hydrophilic surface and a second hydrophilic surface on two sides of the hydrophobic surface. A surface of the metal nano-particle layer is modified by a hydrophilic group, and the metal nano-particle layer is disposed on the first and the second hydrophilic surfaces of the adhesive layer as a source and a drain, respectively. The organic semiconductor layer is disposed on the hydrophobic surface of the adhesive layer and on the metal nano-particle layer.
摘要:
A patterning process is provided. The patterning process includes the following steps. First, a substrate is provided. Then, a patterned self-assembled monolayer (SAM) is formed on the substrate. Afterwards, an organic material layer is formed over the substrate to cover the self-assembled monolayer. Thereafter, a portion of the organic material layer is removed, wherein the organic material layer in contact with the patterned SAM is retained such that a patterned organic material layer.