-
- News
- Books
Featured Books
- smt007 Magazine
Latest Issues
Current IssueBox Build
One trend is to add box build and final assembly to your product offering. In this issue, we explore the opportunities and risks of adding system assembly to your service portfolio.
IPC APEX EXPO 2024 Pre-show
This month’s issue devotes its pages to a comprehensive preview of the IPC APEX EXPO 2024 event. Whether your role is technical or business, if you're new-to-the-industry or seasoned veteran, you'll find value throughout this program.
Boost Your Sales
Every part of your business can be evaluated as a process, including your sales funnel. Optimizing your selling process requires a coordinated effort between marketing and sales. In this issue, industry experts in marketing and sales offer their best advice on how to boost your sales efforts.
- Articles
- Columns
Search Console
- Links
- Events
||| MENU - smt007 Magazine
Integrated Constraint Entry System Aids PCB System Design
March 28, 2005 |Estimated reading time: 1 minute
WILSONVILLE, Ore. — Mentor Graphics has released its next-generation constraint editor system (CES) into its Expedition Series and Board Station RE PCB design flows. This system enables definition, adherence and verification of physical constraints throughout the whole design process for complex designs. CES integrates with the entire system's design flow—from schematic entry through physical layout.
CES provides an interface for design engineers and layout designers to specify and verify constraints, which can be entered in familiar terms through a common graphical user interface (GUI), and then automatically accessed by individual tools in their native formats. Features include automatic differential pair identification and constraint templates to facilitate entering complex constraints. Advanced automatic topology and an interactive tuning meter are enabled when CES is used in the design flow.
CES supports bi-directional cross probing, which highlights and selects between a spreadsheet-based constraint interface and the schematic capture and layout tools. Constraint values are fully synchronized during the forward and backward annotation process with intelligent handling of connectivity changes. Users can create hierarchical rule classes that ease the association of constraints to design objects. Nets can be constrained by one rule at the class level to reduce the number of constraints manually entered in the design. CES also supports user- and pre-defined automatic topologies, enabling quick assignment of pin ordering that is used throughout the design process.