Component placement
Placement is developed around signal flow, mechanical constraints, thermal considerations, accessibility, assembly requirements and routing feasibility.
Professional PCB Layout
PCB Layout Services for Complex Electronic Designs
U.S.-based PCB layout services covering component placement, constraint implementation, BGA escape routing, high-speed routing, design verification and manufacturing release.
Dedicated Layout Support
PCB layout services from approved schematic to manufacturing release
Professional PCB layout services translate the schematic, mechanical requirements and electrical constraints into the physical construction of the circuit board, from component placement and routing through verification and manufacturing release.
911EDA provides outsourced PCB layout services for engineering teams that have completed or substantially completed their schematic and need experienced U.S.-based PCB designers for component placement, routing, constraint implementation, verification and final release.
Layout projects can include new designs, revisions, technology migrations and overflow PCB design support when internal engineering resources are limited or project schedules are compressed.
Projects that also require schematic capture, library development or broader design support can be handled through our PCB design services.
PCB Layout Capabilities
PCB layout services for demanding board requirements
Each layout is developed around the electrical, mechanical, fabrication and assembly requirements defined for the project.
BGA escape routing
Dense packages are planned around available layer count, via technology, breakout geometry, fabrication limits and the routing density required by the design.
High-speed routing
Differential pairs, controlled-impedance signals, length matching, reference-plane continuity and return-path requirements are implemented within the layout.
Power and ground planning
Power distribution, plane structure, grounding strategy, stitching vias and signal return paths are coordinated with the board stackup and design constraints.
Mechanical integration
Board outlines, mounting features, connector locations, enclosure restrictions, keepouts and height constraints are incorporated into placement and routing.
Manufacturing release
Completed layouts can be prepared with the native design database and the fabrication and assembly outputs defined for the project.
Constraint-Driven Layout
Electrical and mechanical requirements guide the layout
A successful layout depends on more than fitting components and connecting nets. The physical design must account for the interaction between placement, routing density, stackup, signal integrity, power distribution, thermal behavior and manufacturing limits.
Relevant requirements may include impedance targets, spacing rules, differential-pair geometry, matched-length groups, reference layers, via restrictions, component keepouts and enclosure constraints.
Identifying these requirements before routing begins helps reduce avoidable redesign and supports a more efficient review process.
Typical layout considerations
- Board outline and mounting features
- Component placement restrictions
- Layer count and stackup
- Controlled-impedance routing
- Differential-pair requirements
- Length-matched signal groups
- BGA breakout and via strategy
- Power and ground distribution
- Return-path continuity
- Fabrication design rules
- Assembly and test access
- Mechanical and height keepouts
PCB Layout Workflow
A structured path from project review to final release
Review points are coordinated with the customer so major placement, routing and release decisions can be confirmed before the project advances.
These review points are part of a staged PCB design approval process intended to identify changes before additional placement or routing work is built on previously approved decisions.
For a detailed explanation of the technical stages from design inputs and component placement through routing, verification and manufacturing release, review our PCB layout process guide.
Project and file review
Available schematic, native design files, libraries, mechanical data, stackup information and design requirements are reviewed to define the layout scope.
Board setup and constraint implementation
The board outline, layer structure, component data, net classes, spacing rules and electrical constraints are prepared in the selected PCB design environment.
Component placement
Components are placed around mechanical requirements, signal flow, power distribution, thermal considerations, routing access and assembly constraints.
Routing and design refinement
Signals, power connections, differential pairs, matched-length groups and BGA escapes are routed according to the approved constraints and stackup.
Verification and customer review
Design-rule checks and project-specific reviews are completed, and identified issues are resolved before manufacturing files are prepared.
Manufacturing release
The approved native PCB database and specified fabrication and assembly outputs are prepared for delivery.
Project Inputs
What to provide for a PCB layout quote
Complete information helps define the routing complexity, expected deliverables, review requirements and project schedule.
A project can still be reviewed when some items are unavailable, but missing information may need to be resolved before layout begins.
For a detailed explanation, review our guide on what files are needed for a PCB design quote .
Useful quote information
- Current schematic files
- Native PCB files, when available
- Approved component libraries
- Mechanical drawings or enclosure data
- Board outline and connector locations
- Layer count or preliminary stackup
- Controlled-impedance requirements
- Placement and routing constraints
- Fabrication design rules
- Required output files
- Review and approval requirements
- Target completion schedule
Layout Deliverables
Outputs aligned with the project requirements
Deliverables are defined during project review and can include the native PCB design database along with the fabrication and assembly files required for release.
- Native PCB layout database
- Gerber or ODB++ fabrication data
- NC drill files
- Fabrication drawing
- Assembly drawing
- Pick-and-place data
- Updated bill of materials, when required
- PDF review documentation
PCB layouts can be completed using the supported platforms listed on our PCB design tools page. Projects requiring native Altium PCB files, component libraries and complete design-package delivery are supported through our Altium PCB design services. Projects requiring constraint-driven routing, existing-board revisions and native Cadence Allegro files are supported through our Cadence Allegro PCB design services.
PCB Layout FAQ
Common questions about outsourced PCB layout
Project scope varies according to board complexity, file condition, routing requirements and the deliverables required for release.
Can 911EDA perform layout from an existing schematic?
Yes. A project can begin with an existing schematic, mechanical requirements and available design constraints. The files are reviewed to determine whether additional information or library work is required before layout begins. Projects requiring hierarchical schematic capture, component-library development or OrCAD design revisions can be supported through our Cadence OrCAD PCB design services.
Can 911EDA revise an existing PCB layout?
Yes. Existing layouts can be reviewed for component changes, mechanical revisions, routing changes, technology updates or other defined modifications. Native source files are preferred when available. For projects maintained in Altium Designer, review our Altium PCB design services. For projects maintained in Cadence Allegro, review our Cadence Allegro PCB design services. For projects maintained in Siemens PADS, review our Siemens PADS PCB design services.
Do you support high-speed and BGA-based designs?
Layout support can include BGA escape routing, differential-pair routing, controlled-impedance signals, matched-length groups and other project-specific constraints. The exact requirements should be included with the quote package.
Can PCB layout be quoted before every project file is final?
A preliminary review may be possible with partial information. Quote accuracy improves when the schematic, mechanical data, stackup assumptions, component information, design constraints and required deliverables are available.
Need PCB layout support?
Submit your schematic, mechanical requirements, design constraints, expected deliverables and target schedule for review.