Abstract: An etch bias direction is determined based on a curvature of a contour in a substrate pattern. The etch bias direction is configured to be used to enhance an accuracy of a semiconductor patterning process relative to prior patterning processes. In some embodiments, a representation of the substrate pattern is received, which includes the contour in the substrate pattern. The curvature of the contour of the substrate pattern is determined, and an etch bias direction is determined based on the curvature by considering curvatures of adjacent contour portions. A simulation model is used to determine an etch effect based on the etch bias direction for an etching process on the substrate pattern.

Abstract: A network service allocating system for a software defined network (SDN) includes an SDN controller, a plurality of SDN switches, a cloud server, and a local server. The SDN controller includes modules for service managing and path managing. Each SDN switch can receive a packet from a client and send the packet to the SDN controller. The service managing module analyzes the packet to identify type of service required and allocates the network service to the cloud server or to the local server according to the type of service required. The path managing module plans an optimum transmission path and sends the path to the SDN controller. Thereby, the SDN switch can obtain the network service. An SDN controller and a network service allocating method are also provided.

Abstract: A network service allocating system for a software defined network (SDN) includes an SDN controller, a plurality of SDN switches, a cloud server, and a local server. The SDN controller includes modules for service managing and path managing. Each SDN switch can receive a packet from a client and send the packet to the SDN controller. The service managing module analyzes the packet to identify type of service required and allocates the network service to the cloud server or to the local server according to the type of service required. The path managing module plans an optimum transmission path and sends the path to the SDN controller. Thereby, the SDN switch can obtain the network service. An SDN controller and a network service allocating method are also provided.

Abstract: A network device and method for updating parameters of the network device provides an object adapting interface. The object adapting interface generates a service access interface and a configuration adapting interface. A management agent of the network device sends a requirement command. If the requirement command is a write command, the configuration adapting interface updates configuration parameters of the management agent stored in a configuration database of the network device. If the requirement command is a read command, the service access interface reads configuration parameters stored in the management agent.

Abstract: A network device and method for updating parameters of the network device provides an object adapting interface. The object adapting interface generates a service access interface and a configuration adapting interface. A management agent of the network device sends a requirement command. If the requirement command is a write command, the configuration adapting interface updates configuration parameters of the management agent stored in a configuration database of the network device. If the requirement command is a read command, the service access interface reads configuration parameters stored in the management agent.