摘要:
Provided is a method of fabricating a semiconductor device. Gate patterns are formed on a substrate including an NMOS transistor region and a PMOS transistor region. A spacer structure is formed on sidewalls of the gate patterns. The substrate in the PMOS transistor region is etched using the gate patterns and the spacer structure as etching masks, and thereby a recessed region is formed. A compressive stress pattern is formed in the recessed region, and a sidewall of the compressive stress pattern protrudes upwardly from an upper surface of the substrate. A mask oxide layer is formed on a sidewall of the spacer structure. The mask oxide layer is formed to cover a portion of the sidewall of the compressive stress pattern that protrudes upwardly from the upper surface of the substrate.
摘要:
Provided is a method of fabricating a semiconductor device. Gate patterns are formed on a substrate including an NMOS transistor region and a PMOS transistor region. A spacer structure is formed on sidewalls of the gate patterns. The substrate in the PMOS transistor region is etched using the gate patterns and the spacer structure as etching masks, and thereby a recessed region is formed. A compressive stress pattern is formed in the recessed region, and a sidewall of the compressive stress pattern protrudes upwardly from an upper surface of the substrate. A mask oxide layer is formed on a sidewall of the spacer structure. The mask oxide layer is formed to cover a portion of the sidewall of the compressive stress pattern that protrudes upwardly from the upper surface of the substrate.
摘要:
The present invention relates to a security system, and more particularly, to a security system and method using a one-time execution code in an environment in which a client and a server are connected through a network. The server irregularly generates and transmits the one-time execution code to the client, and the client directly executes the one-time execution code on a memory area and transmits the execution result and deletes the one-time execution code on the memory area. Therefore, the server determines whether or not an error exists in the execution result and can prevent forgery and appropriation of the client by blocking the connection with the client.
摘要:
Provided are a polyamide combination that includes: a first polyamide including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, or a combination thereof; and a second polyamide including a repeating unit represented by Chemical Formula 3, and a film prepared using the polyamide combination.
摘要:
The present invention provides a method for manufacturing shoes having springs embedded therein, the method in which comfort and body weight distribution effect can be enhanced by means of the shock-absorbing force of resilient members being more effectively transmitted to the soles of a wearer.
摘要:
A polyimide precursor composition includes a polyamic acid including a repeating unit represented by Chemical Formula 1 and diisocyanate represented by Chemical Formula 2. OCN-A2-NCO Chemical Formula 2 The diisocyanate represented by Chemical Formula 2 is included in an amount of about 0.01 moles to about 10 moles based on 100 moles of the repeating unit represented by Chemical Formula 1 in the polyamic acid.
摘要:
A polymer including a structural unit represented by the following Chemical Formula 1, and a composition and a film including the same are provided. In the above formula at least one of Ra and Rb is either Chemical Formula 3 or Chemical Formula 4, as shown below. The polymer also includes units selected from polyamic acid, polyimide, polyaramid, polyamide, polyurethane, polycarbonate and polyacetal units and mixtures of such units.
摘要:
The present invention relates to a security system, and more particularly, to a security system and method using a one-time execution code in an environment in which a client and a server are connected through a network. The server irregularly generates and transmits the one-time execution code to the client, and the client directly executes the one-time execution code on a memory area and transmits the execution result and deletes the one-time execution code on the memory area. Therefore, the server determines whether or not an error exists in the execution result and can prevent forgery and appropriation of the client by blocking the connection with the client.