Abstract: A circuit layout method and a circuit layout apparatus are disclosed. The circuit layout apparatus comprises a display apparatus, an input device, a stack up database and a processor. The display apparatus shows a system interface. The input device inputs a user request in response to the system interface. The processor selects a stack up data table, corresponding to the user request, from the stack up database, and generates a design rule of a computer aided design (CAD) according to the stack up data table. The processor checks whether a circuit board design complies with the design rule.

Abstract: A circuit layout method and a circuit layout apparatus are disclosed. The circuit layout apparatus comprises a display apparatus, an input device, a stack up database and a processor. The display apparatus shows a system interface. The input device inputs a user request in response to the system interface. The processor selects a stack up data table, corresponding to the user request, from the stack up database, and generates a design rule of a computer aided design (CAD) according to the stack up data table. The processor checks whether a circuit board design complies with the design rule.

Abstract: An embodiment of the disclosure provides a crosstalk analysis method executed by a computer. The method includes steps of: executing a layout program; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; generating a layout suggestion when the crosstalk value is larger than the predetermined value.

Abstract: One implementation of the disclosure provides a crosstalk analysis method executed by a computer. The method includes steps of: executing a layout program; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; providing a layout suggestion table when the crosstalk value is larger than the predetermined value.

Abstract: An embodiment of the disclosure provides a crosstalk analysis method executed by a computer including: executing a layout program for a layout circuit; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; providing an interface for showing information of the layout result and adjusting a plurality of lines of the layout circuit.

Abstract: An embodiment of the disclosure provides a crosstalk analysis method executed by a computer including: executing a layout program for a layout circuit; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; providing an interface for showing information of the layout result and adjusting a plurality of lines of the layout circuit.

Abstract: One implementation of the disclosure provides a crosstalk analysis method executed by a computer. The method includes steps of: executing a layout program; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; providing a layout suggestion table when the crosstalk value is larger than the predetermined value.

Abstract: An embodiment of the disclosure provides a crosstalk analysis method executed by a computer. The method includes steps of: executing a layout program; executing a crosstalk analysis program; acquiring, by the crosstalk analysis program, a plurality of parameters from a layout result generated by the layout program; estimating a crosstalk value according to the parameters; determining whether the crosstalk value is larger than a predetermined value; generating a layout suggestion when the crosstalk value is larger than the predetermined value.

Abstract: A method, apparatus, article of manufacture, and a memory structure for configuring a database management system to operate with multiple key versions is disclosed. The method comprises the steps of accessing key information comprising self-describing key data and an associated version indicator, generating key conversion/comparison information from the accessed key information, and storing the key conversion/comparison information in a memory accessible to the database management system. The apparatus comprises a means for performing the above-entitled operations, and the article of manufacture comprises a program storage device tangibly embodying instructions for performing the operations.

Abstract: A method, apparatus, article of manufacture, and a memory structure for configuring a database management system to operate with multiple key versions is disclosed. The method comprises the steps of storing first key information comprising a first key format and an associated version indicator, when a command altering the key format is accepted, storing altered key information comprising the altered key format and the incremented version indicator in the index page set, and storing altered key information in an index catalog. The apparatus comprises a means for performing the above-entitled operations, and the article of manufacture comprises a program storage device tangibly embodying instructions for performing the operations.