The Complete Printed Circuit Board Service Bureau

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Largo Offers Special Advantages:

  • Complete Turnkey Capability
  • Fast Turnaround Time
  • Expert and Experienced Designers
    Specializing in the Latest and Most
    Advanced PCB Technologies
  • Accurate, Reliable and Dependable Service
  • Competitive Price


  • PCB Layout
    (Cadence Allegro, Altium)
  • Schematic Capture
  • Netlist Input
  • Netlist Conversions
  • Auto and Interactive Routing


  • Thermal Analysis
  • Signal Noise Analysis
  • Line Characteristics Analysis
  • Test Points Creation
  • PCB Data Base Conversions
  • GERBER to CAD Regeneration


  • Complete CAD Data Base
  • Gerber Files
  • ODB++
  • NC Drill Tapes
  • Full Fabrication and Assembly
  • Standard & Customized Reports
  • Input to Automatic Assembly &
    Test Equipment
  • Laser Plotted Artwork
  • Prototype Manufacturing
  • Prototype Assembly


  • Commercial (IPC-2221)
  • Military (MIL-STD-275F)
  • Back Planes
  • Power Supplies/Servo
  • High Speed Digital
  • Analog/Low Voltage
  • Mixed Signals
  • RF


  • Multi Layer
  • Double Sided
  • Surface Mount Technology
  • Multichip Module
  • Blind/Buried Vias
  • Flexible/Rigid Boards
  • Fine Line

Rule Driven Design For Performance and Signal Integrity

 Printed Circuit Boards are becoming denser,
 signal frequencies are higher with switching
 times shorter. To ensure proper performance
 of the final product these issues receive
 special and professional care:
  • Board Materials
  • Layers Order and Line Distribution
    and Topology
  • Impedance Control (Single Ended and Differential)
  • Routing Sequence
  • Termination
  • Cross Talk Avoidance
  • Shielding
  • Signal Length Control and Matching
  • Decoupling

Design For Manufacturability (DFM)

 Special attention and extensive effort is dedicated,

 through the design, to details that effect the board

 manufacturing and assembly cost:

  • Reduce Number of Layers
  • Reduce Number of Vias
  • Reduce Number of Hole Sizes and Via Types
  • Accurate Land Pattern Generation
  • Parts Placement and Routing Appropriate to the Assembly and Reflow Methods Used
  • Ongoing Cooperation with the selected board Manufacturer

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Sample Designs

These are samples of boards that were designed by Largo.
Click on the button of the category you would like to view.

Analog Digital Backplane
MCM Flex Circuits RF