摘要:
Provided are a semiconductor device including an active area which is defined as high and low mobility areas and a thin film transistor having the semiconductor device. The mobility of the active area can be lowered to a level enough to satisfy the requirement of the semiconductor device. The lowering of the mobility of the active area can contribute to reducing mobility deviation between semiconductor devices. As a result, the quality of a flat panel display adopting a large-scale semiconductor device can be greatly improved.
摘要:
A chip on film (COF) type semiconductor package is provided. The chip on film (COF) type semiconductor package includes a film, a plurality of leads formed on a surface of the film, a chip adhered to ends of the leads, an underfill layer filled within a space between the chip and the leads, and a heat dissipation layer adhered to an other surface of the film, the heat dissipation layer including a graphite material layer, a protection layer formed on a surface of the graphite material layer to cover the graphite material layer, and an adhesion layer formed on an other surface of the graphite material layer to adhere the heat dissipation layer to the other surface of the film.
摘要:
A video device for determining whether a digital broadcasting channel through a point of deployment (POD) is reproduced, includes a memory; a communicator to communicate with the POD; a controller which stores a first copy control information (CCI) value with respect to a first digital broadcasting channel in the memory, if converting the first digital broadcasting channel into an analog broadcasting channel, and sets the first CCI value stored in the memory to a second CCI value with respect to a second digital broadcasting channel if the second CCI value is not received through the communicator from the POD and if converting the analog broadcasting channel into the second digital broadcasting channel.
摘要:
A chip on film (COF) type semiconductor package is provided. The chip on film (COF) type semiconductor package includes a film, a plurality of leads formed on a surface of the film, a chip adhered to ends of the leads, an underfill layer filled within a space between the chip and the leads, and a heat dissipation layer adhered to an other surface of the film, the heat dissipation layer including a graphite material layer, a protection layer formed on a surface of the graphite material layer to cover the graphite material layer, and an adhesion layer formed on an other surface of the graphite material layer to adhere the heat dissipation layer to the other surface of the film.
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 post-filtering apparatus and method for speech enhancement in a modified discrete cosine transform (MDCT) domain are disclosed. In the apparatus and method, previous and current MDCT coefficients are used for obtaining a speech spectrum coefficient similar to a real speech spectrum, and a convex function is used for transforming the speech spectrum coefficient and obtaining a post-filter coefficient so that difference can increase in the case where the speech spectrum coefficient is small but decrease in the case where the coefficient is large. Then, the post-filter coefficient is applied to the MDCT coefficient. With this configuration, both the current and previous MDCT values are used, so that it is possible to obtain a spectrum coefficient similar to the real speech spectrum and to obtain a more accurate filter coefficient. Further, the coefficient is adaptively transformed through the convex function, thereby enhancing speech quality.
摘要:
An image processing apparatus includes a receiving unit which receives an image signal, an image processor which processes the image signal, a storage unit which stores setting information related to processing of the image signal, a controller which controls the image processor to process the image signal with reference to the setting information when an external controlling program comprised in the image signal is executed.
摘要:
In a method of forming a polysilicon film, a thin film transistor including a polysilicon film, and a method of manufacturing a thin film transistor including a polysilicon film, the thin film transistor includes a substrate, a first heat conduction film on the substrate, a second heat conduction film adjacent to the first heat conduction film, the second heat conduction film having a lower thermal conductivity than the first heat conduction film, a polysilicon film on the second heat conduction film and the first heat conduction film adjacent to the second heat conduction film, and a gate stack on the polysilicon film. The second heat conduction film may either be on the first heat conduction film or, alternatively, the first heat conduction film may be non-contiguous and the second heat conduction film may be interposed between portions of the non-contiguous first heat conduction film.
摘要:
In a thin film semiconductor device realized on a flexible substrate, an electronic device using the same, and a manufacturing method thereof, the thin film semiconductor device and an electronic device include a flexible substrate, a semiconductor chip, which is formed on the flexible substrate, and a protective cap, which seals the semiconductor chip. Durability of the thin film semiconductor device against stress due to bending of the substrate is improved by using the protective cap.
摘要:
A cable broadcasting system is provided which includes a cable broadcasting transmitting apparatus and a cable broadcasting receiving apparatus which are connected to a cable network. The cable broadcasting transmitting apparatus includes a broadcasting signal generator, a sensitivity adjusting signal generator which generates a sensitivity adjusting control signal and a transmitter which transmits a cable broadcasting signal and the sensitivity adjusting control signal. The cable broadcasting receiving apparatus includes a sensitivity adjuster which receives the cable broadcasting signal a controller which controls the sensitivity adjuster to adjust sensitivity of the cable broadcasting signal. Thus, a cable broadcasting system, a cable broadcasting transmitting apparatus, a cable broadcasting receiver, an Open Cable broadcasting receiver and a cable card are provided which allow remote adjustment of the sensitivity of a cable broadcasting signal which is supplied to a cable broadcasting receiving apparatus.