摘要:
Disclosed are a method and apparatus capable of reducing the computational complexity of encryption and decryption by encrypting only data of scalable video coding contents for each coding layer in terms of temporal, spatial, and SNR scalabilities to provide a service for protected scalable video coding contents, and capable of protecting contents by generating and distributing an encryption key for encryption and decryption depending on a class of a contents consumer.
摘要:
Disclosed are a method and apparatus capable of reducing the computational complexity of encryption and decryption by encrypting only data of scalable video coding contents for each coding layer in terms of temporal, spatial, and SNR scalabilities to provide a service for protected scalable video coding contents, and capable of protecting contents by generating and distributing an encryption key for encryption and decryption depending on a class of a contents consumer.
摘要:
Embodiments relate to a semiconductor device. In embodiments, the semiconductor device may include a semiconductor substrate having a first metal line; a pre-metal dielectric (PMD) layer over the first metal line on the semiconductor substrate; a first metal layer formed in a first contact hole in the PMD layer; a second metal layer formed in a second contact hole in the PMD layer; and a second metal line electrically connected to the first and second metal layers, respectively, over the PMD layer, wherein the first and second metal layers are located at prescribed positions and configured to be electrically connected to the first metal line.
摘要:
Embodiments relate to a semiconductor device and a method of fabricating semiconductor device, that may uniformly form a barrier layer in a via hole to thus prevent layers from being broken. In embodiments, a method of fabricating a semiconductor device may include forming an interlayer dielectric layer on a substrate, forming via holes selectively on the interlayer dielectric layer, forming a first metal layer on a top surface of the substrate including inner portion of the via hole, forming spacers on sides of the via holes by etching back the first metal layer, forming a second metal layer on the substrate including the spacer, and forming a tungsten layer by depositing tungsten on the second metal layer.
摘要:
A method for manufacturing a semiconductor device includes the steps of: forming a gate on a semiconductor substrate; sequentially stacking a first oxide layer, a nitride layer and a second oxide layer on the semiconductor substrate including the gate; forming a first photoresist layer pattern on the second oxide layer; forming a second oxide layer pattern by wet etching the second oxide layer by using the first photoresist layer pattern as a mask; forming a nitride layer pattern by dry etching the nitride layer using the second oxide layer pattern as a mask; and forming a first oxide layer pattern by etching the first oxide layer using the nitride layer pattern as a mask.
摘要:
A method of manufacturing a metal wiring in a semiconductor device includes: forming a via hole by selectively etching an interlayer insulating layer formed on a first metal layer; sequentially forming a first barrier metal layer and a second metal layer on the interlayer insulating layer; etching the first barrier metal layer and the second metal layer in the via hole to a predetermined depth together with selectively etching a surface of the second metal layer; forming a silicon layer on the first barrier metal and the second metal to a predetermined height; forming a second barrier metal layer on the interlayer insulating layer; forming a third metal layer on the second barrier metal layer; and forming a second barrier metal pattern and a third metal layer pattern by patterning the second barrier metal layer and the third metal layer.
摘要:
Disclosed are an antifuse having a uniform amorphous silicon (antifuse material) thickness and a method for fabricating such an antifuse device. The antifuse is located between overlying and underlying conductive layers, and includes: a contact and/or via hole in an insulating layer on the underlying conductive layer; a lower metal layer contacting inner surfaces of the contact and/or via hole and a top surface of the insulating layer; a filling layer contacting the lower barrier metal layer and at least partially filling the contact and/or via hole; an antifuse material layer contacting a top surface of the filling layer and a part of the lower metal layer; and an upper metal layer on the antifuse material layer.
摘要:
A method for manufacturing a semiconductor device includes the steps of: forming a gate on a semiconductor substrate; sequentially stacking a first oxide layer, a nitride layer and a second oxide layer on the semiconductor substrate including the gate; forming a first photoresist layer pattern on the second oxide layer; forming a second oxide layer pattern by wet etching the second oxide layer by using the first photoresist layer pattern as a mask; forming a nitride layer pattern by dry etching the nitride layer using the second oxide layer pattern as a mask; and forming a first oxide layer pattern by etching the first oxide layer using the nitride layer pattern as a mask.
摘要:
A method of forming a device isolation region in a semiconductor device is capable of completely removing an oxide layer for trench formation in a central region of the semiconductor device without forming a moat in an edge region. The method begins with forming a sacrificial oxide and sacrificial nitride layer over a semiconductor substrate. Trenches are etched in the nitride layer, the oxide layer and the substrate in the central and edge regions, respectively. The trenches are filled with an oxide layer. The oxide layer is then polished until the sacrificial nitride layer formed in the edge region is exposed, to form a first device isolation region filling a first trench and a second device isolation region pattern filling a second trench and covering the second region. A photoresist pattern is formed over the first device isolation region and the second device isolation region pattern. The second device isolation region pattern is partially etched using the photoresist pattern as a mask to form a second device isolation region.
摘要:
A method of forming a device isolation region in a semiconductor device is capable of completely removing an oxide layer for trench formation in a central region of the semiconductor device without forming a moat in an edge region. The method begins with forming a sacrificial oxide and sacrificial nitride layer over a semiconductor substrate. Trenches are etched in the nitride layer, the oxide layer and the substrate in the central and edge regions, respectively. The trenches are filled with an oxide layer. The oxide layer is then polished until the sacrificial nitride layer formed in the edge region is exposed, to form a first device isolation region filling a first trench and a second device isolation region pattern filling a second trench and covering the second region. A photoresist pattern is formed over the first device isolation region and the second device isolation region pattern. The second device isolation region pattern is partially etched using the photoresist pattern as a mask to form a second device isolation region.