Analysis Constraints

Constraints are reference values used to indicate the threshold at which a measurement becomes a critical violation. This table provides a list of categories and the constraints that govern the results they report, arranged by analysis type. In each case, the constraint defines a critical result.

See “Modifying Analysis Constraints”.

Drill Analysis Constraints

Table 1. Categories and their Constraints - Drill Analysis
Constraint Prompt	Affected Category	Category (internal name)
Mounting Hole Size	Mounting Holes	mount_holes
NPTH Size	NPTH Summary	npth
PTH Size	PTH Summary Plated Slot Summary	pth slot_pt
Tooling Hole Size	Tooling Holes	tooling_holes
VIA Size	Via Summary	via
no constraint required	Duplicate Holes Missing Holes No Thermal Touching Holes	duph missh no_thermal touchh

Signal Analysis Constraints

Table 2. Categories and their Constraints - Signal Layer Analysis
Constraint Prompt	Affected Category	Category (internal name)
Feature Spacing	Pad to Pad Pad to Circuit Circuit to Circuit Pads Lines Shaved Lines Arcs Shaved Arcs Line Neckdown Text Text Touches Copper Sliver Short Sliver Spacing Length Same Net Spacing CAD Self Spacing Conductor Width	p2p p2c c2c pad line shaved_line arc shaved_arc neckdown text text_touch_copper sliver short_sliver spacing_length self_spacing cad_self_spacing conductor_width
Hole Registration	PTH Registration NPTH Registration Via Registration	reg npth_reg via_reg
Hole to Feature Spacing	NPTH to Pad NPTH to Circuit PTH to Copper Via to Copper Tooling Hole to Exposed Copper PTH to Copper Same Net	npth2p npth2c pth2c via2c thole2exp_copper pth2c_same_net
Plated Hole AR	PTH (Comp) Annular Ring Via Annular Ring Blind Via Annular Ring Buried Via Annular Ring	pth_ar via_ar blind_via_ar buried_via_ar
Via Spacing	Via to Via Exposed Via to Exposed Via Exposed Via to Exposed Copper	via2via exvia2exvia exvia2exc
no constraint required	NPTH Annular ring SMD Pads Stubs Text to Text	npth_ar smd_pad stub text2text

Power and Ground Analysis Constraints

Table 3. Categories and their Constraints - Power and Ground Analysis
Constraint Prompt	Affected Category	Category (internal name)
Copper Spacing	Slivers Short Slivers Plane Spacing Segmentation	sliver short_sliver plane_spacing segmentation_lines
Hole Clearance	PTH Contains Clearance Via Contains Clearance NPTH Contains Clearance	pth_cont_clr via_cont_clr npth_cont_c
Hole Registration	PTH Registration NPTH Registration Via Registration	pth _reg npth _reg via_reg
Non-plated Hole Spacing	NPTH to Copper NPTH to Plane	npth2c npth2p
Plated Hole AR	PTH Annular Ring	pth2t
Plated Hole Spacing	PTH to Copper PTH to Plane Via to Copper Via to Plane	pth2c pth2p via2c via2p
no constraint required	Missing CU for Via	miss_cu

Solder Mask Analysis Constraints

Table 4. Categories and their Constraints - Solder Mask Analysis
Constraint Prompt	Affected Category	Category (internal name)
Gasket Size	SMD Pad Gasket Undrilled Pad Gasket PTH Pad Gasket Via Pad Gasket	neg_ar_smd neg_ar_ndrl_pad neg_ar_pth_pad neg_ar_via_pad
Hole Pad AR	Via Pad Annular Ring PTH Pad Annular Ring NPTH Pad Annular Ring	ar_via_pad ar_pth_pad ar_npth_pad
Plated Hole	PTH Annular Ring Via Annular Ring	ar_pth ar_via
PTH Gasket Size	PTH Gasket	neg_ar_pth
SMD Pad AR	Via Gasket SMD Annular Ring Undrilled Pad Annular Ring Pad Annular Ring	neg_ar_via ar_smd ar_ndrl_pad ar_pad
SM Feature Spacing	Coverage SM Sliver SM Short Sliver Pad to Pad Spacing Pad to Non-Pad Spacing Non-Pad to Non-Pad Spacing	coverage sliver short_ sliver pad_to_pad pad_to_non non_to_non
no constraint required	Extra SM -Missing Copper Missing NPTH Clearance Missing PTH Clearance Missing SMD Clearance Missing Testpoint Clearance Missing Undrilled Pad Clearance Missing VIA Clearance NPTH Touches Mask	ext_sm_copper_miss npth_miss pth_miss smd_miss tp_miss ndrl_miss via_miss npth2m

Silk Screen Analysis Constraints

Table 5. Categories and their Constraints - Silk Screen Analysis
Constraint Prompt	Affected Category	Category (internal name)
Line Width	Line Width String Line Width	ss_line str_line_width
NPTH Spacing	NPTH Pads Clearance NPTH Clearance	ss2pad_npth ss2npth
PTH Spacing	PTH Pads Clearance PTH Clearance	ss2pad_pth ss2pth
SMD Spacing	SMD Clearance Undrilled Pads Clearance	ss2pad_smd ss2pad_undrl
VIA Spacing	Via Pads Clearance Via Clearance	ss2pad_via ss2via

Component Analysis Constraints

Table 6. Categories and their Constraints - Component Analysis
Constraint Prompt	Affected Category	Category (internal name)
no constraint required	Comp. Under Component Comp. Overlap	c_under_c comp_overlap

Testpoint Analysis Constraints

Table 7. Categories and their Constraints - Testpoint Analysis
Constraint Prompt	Affected Category	Category (internal name)
Exposed Copper Spacing	Testpoint to Exposed Copper	tp2c
Testpoint to Testpoint	Testpoint to Testpoint	tp2tp tp2tp;<PkgType> tp2tp;<PkgTypeA><PkgTypeB>

Solder Paste Analysis Constraints

Table 8. Categories and their Constraints - Solder Paste Analysis
Constraint Prompt	Affected Category	Category (internal name)
no constraint required	SMD Pad Without Solderpaste Solderpaste Not on SMD	smd_without_sp sp_non_smd