Abstract:
A method for generating a transport stream of a server is provided. The method for generating a transport stream of a server which sends broadcasting content to a client device comprises: scrambling broadcasting content by using a specific key; adding at least one content-encryption message which includes the specific key and a device key for obtaining the specific key from the at least one content-encryption message to the broadcasting content so as to generate a transport stream; and sending the generated transport stream to the client device.
Abstract:
A conductive pattern structure includes a first insulating interlayer on a substrate, metal wiring on the first insulating interlayer, a second insulating interlayer on the metal wiring, and first and second metal contacts extending through the second insulating interlayer. The first metal contacts contact the metal wiring in a cell region and the second metal contact contacts the metal wiring in a peripheral region. A third insulating interlayer is disposed on the second insulating interlayer. Conductive segments extend through the third insulating interlayer in the cell region and contact the first metal contacts. Another conductive segment extends through the third insulating interlayer in the peripheral region and contacts the second metal contact. The structure facilitates the forming of uniformly thick wiring in the cell region using an electroplating process.
Abstract:
A non-volatile memory device is provided, including a substrate formed of a single crystalline semiconductor, pillar-shaped semiconductor patterns extending perpendicular to the substrate, a plurality of gate electrodes and a plurality of interlayer dielectric layers alternately stacked perpendicular to the substrate, and a charge spread blocking layer formed between the plurality of gate electrodes and the plurality of interlayer dielectric layers.
Abstract:
A method of encrypting a message for message integrity is provided. In the method, a random number is generated, a first ciphertext is generated by encrypting the message by using the generated random number, a hash value of the first ciphertext is calculated, an encryption key is generated by using the hash value of the first ciphertext and a shared key, a second ciphertext is generated by encrypting the random number by using the encryption key, and the first and second ciphertexts are combined.
Abstract:
Provided are a method and an apparatus for communication based on certification using a static identifier and an updatable dynamic identifier allowing a verified client to access a server.
Abstract:
Provided are a method and host device for using content using a mobile card, and a mobile card. The method includes storing an identifier (ID) of the mobile card, a global key, and a content key encrypted by a secret key of the mobile card, generating a combined key of the ID and the global key, generating a first cryptogram, in which the content key encrypted by the secret key is encrypted by the combined key, transmitting the first cryptogram to the mobile card, receiving from the mobile card a second cryptogram, in which the content key is encrypted by the combined key, and decrypting the second cryptogram. Accordingly, a user can use encrypted content from a remote place.
Abstract:
In a method of forming a polycide layer and method of manufacturing a semiconductor device having the polycide layer, the method may include forming a preliminary polysilicon layer doped with first type impurities on a substrate having a first region and a second region, implanting second type of impurities into a portion of the preliminary polysilicon layer on the second region, heat treating the preliminary polysilicon layer to electrically activate the impurities, removing a portion of an upper surface of the heat treated preliminary polysilicon layer to obtain a polysilicon layer, forming a metal silicide layer on the polysilicon layer, and patterning the polysilicon layer and the metal silicide layer to form a first type gate electrode on the first region and to form a second type gate electrode on the second region.
Abstract:
A conductive pattern having a surface including silicon is formed on a substrate of a semiconductor device and a conduction region having a surface including silicon is formed in the substrate. A radio frequency etching process is performed ex-situ to remove impurities from a resultant structure and to improve surface characteristics of the conduction region. Residues generated during the radio frequency etching process are removed from the conductive pattern and the conduction region by a cleaning process. A metal film is formed on the conductive pattern and the conduction region. A silicide film is formed on the conductive pattern and the conduction region by reacting metal of the metal film and silicon in the conductive pattern and the conduction region. With a radio frequency sputtering process and a wet cleaning process, a metal silicide film having a uniform phase may be stably formed.
Abstract:
A method for forming a completely buried contact hole and a semiconductor device having a completely buried contact hole in an interconnection structure is disclosed. The completely buried contact hole includes a first insulating layer of a first thermal conductivity having a contact hole formed therein. A region of material of a second thermal conductivity formed in the first insulating layer adjacent the location of the contact hole. The second thermal conductivity is greater than the first thermal conductivity such that the thermal conductivity of the region of material is greater than the thermal conductivity of the insulating layer. A metal is formed in the hole which completely buries the contact hole. The method includes forming in an insulator adjacent a contact hole a region of material of a higher thermal conductivity than the insulating layer, depositing a metal in the contact hole and heating the metal, the insulating layer and the region of material of a higher thermal conductivity to flow the metal into the contact hole so as to completely bury the contact hole.
Abstract:
An integrated circuit device includes a semiconductor structure, a through-silicon-via (TSV) structure that penetrates through the semiconductor structure and a connection terminal connected to the TSV structure. A metal capping layer includes a flat capping portion that covers the bottom surface of the connection terminal and a wedge-shaped capping portion that is integrally connected to the flat capping portion and that partially covers a side wall of the connection terminal. The metal capping layer may be formed by an electroplating process in which the connection terminal is in contact with a metal strike electroplating solution while a pulse-type current is applied.