Title :
ALSYN: flexible rule-based layout synthesis for analog IC´s
Author :
Bexten, Volker Meyer zu ; Moraga, Claudio ; Klinke, Roland ; Brockherde, Werner ; Hess, Klaus-Gunther
Author_Institution :
Fraunhofer Inst. of Microelectronic Circuits & Syst., Duisburg, Germany
fDate :
3/1/1993 12:00:00 AM
Abstract :
ALSYN (Analog Layout SYNthesis), a tool that synthesizes layout from netlist-level descriptions for a broad range of analog integrated circuits, is presented. User-defined rules derive partitioning and other control information, based on parameters and topology of the circuit. Equivalent control information can also be set individually, e.g. supplied in the input netlist by preceding circuit synthesis or during interactive use of the synthesis system. This flexible concept enables designers to incorporate their own reusable knowledge into the synthesis process and to explore design space with the assistance of ALSYN. A flexible module generator environment and easy technology database access offer support for extending the library of parameterized layout primitives with variable shapes. Fast tools for constructive placement, using the MinCut/slicing tree approach, and for maze-style routing and postprocessing, offer various means of coping with the individual requirements of most analog applications
Keywords :
circuit layout CAD; intelligent design assistants; linear integrated circuits; ALSYN; Analog Layout SYNthesis; MinCut/slicing tree approach; analog IC CAD; circuit synthesis; constructive placement; control information; design space exploration; designer´s knowledge incorporation; easy technology database access; flexible module generator environment; flexible rule-based layout synthesis; interactive use; maze-style routing; netlist-level descriptions; parameterized layout primitives; partitioning; postprocessing; range of analog integrated circuits; variable shapes; Analog integrated circuits; Circuit synthesis; Circuit topology; Control system synthesis; Databases; Integrated circuit layout; Integrated circuit synthesis; Libraries; Space exploration; Space technology;
Journal_Title :
Solid-State Circuits, IEEE Journal of
