Issue link: https://resources.pcb.cadence.com/i/1521395
Manufacturing Tolerance Allowance: The Global Manufacturing tolerance provides the user a way to specify what the acceptable tolerance limit is to reduce DRC reporting in these situations. In the case of the example, if the Global Manufacturing Tolerance value is set to .05 mils, only values below 4.95 spacing would be reported. There are two categories of tolerance settings, Copper Spacing and mask. Manufacturing Tolerance only applies to the following Design for Fabrication Checks: Design for Fabrication Core Checks The checks defined within this domain are focused on positioning the design for the assembly process. The rules aid in providing proper clearances and other constraints to improve the efficiency and reduction of issues for automated and manual assembly. 1. Core Outline DFF Constraint Set Index Ref Rule Description Usage Image 1 - Outline to Trace The clearance between any trace edge to the DESIGN_OUTLINE geometry. (DFF_OLN_TO_ TRACE) Etch 2 - Outline to Shape The clearance between any shape edges to the DESIGN_OUTLINE geometry. (DFF_OLN_TO_ SHP) Etch, Non-etch 3 - Outline to All Pin Pads The clearance between any pin pad edges to the DESIGN_OUTLINE geometry. (DFF_OLN_TO_ VIAPD) Etch, Non-etch 4 - Outline to All Via Pads The clearance between any via pad edge to the DESIGN_OUTLINE geometry. (DFF_OLN_TO_ VIAPD) Etch, Non-etch DFF Mask Rules Mask Slivers Mask to Traces Mask to Shape DFF Copper Spacing Trace to trace Trace to shape Trace to shapes Trace to all types of pin pads Trace to all types of via pads Trace to fiducials Trace to all types of holes Trace to all types of non- signal geometries Trace to text Shape to shape Shape to all types of pin pads Shape to all types of via pads Shape to fiducials Shape to all types of holes Shape to non-signal geometries Shape to text All types of pin pads to non-signal geometries All types of pin pads to text Fiducials to non-signal geometries Fiducials to Text All Non-signal geometries to text 5 www.cadence.com OrCAD X DesignTrue DFM Rules Guide