Expertise

Cadence Allegro high-speed PCB layout

Production layout in Cadence Allegro for dense digital, FPGA and display boards.

Problems we address

  • Constraint, stack-up and escape planning start after dense routing is already in progress.
  • DDR, SerDes or eDP geometry cannot be reviewed because rules were never captured.
  • Manufacturing outputs leave engineering without a DFM pass.

Inputs required

  • Schematic or netlist status and revision owner
  • Mechanical outline, mounting and connector constraints
  • Critical interfaces and any existing stack-up or impedance targets
  • NDA and preferred secure file-transfer method

Technical scope

  • Cadence Allegro constraint-driven placement and routing
  • BGA fan-out, DDR and differential / SerDes channels
  • Display fabrics: eDP, V-by-One, LVDS and related pairs
  • Stack-up and impedance planning with fabricator capability
  • DRC, DFM, silkscreen and fabrication-output review

Engineering deliverables

  • Allegro layout database per agreed release scope
  • Manufacturing outputs prepared for fabrication review
  • DFM notes and documented exceptions
  • Optional prototype-build coordination through Shenzhen partners

Development process

  1. 01 Requirement intake and constraint baseline
  2. 02 Placement and critical routing reviews
  3. 03 DRC / DFM and file package
  4. 04 Release and optional prototype coordination
Close-up PCB CAD view showing BGA escape routing and parallel high-speed signal paths.
BGA escape routing and structured high-speed bus planning.

PCB layout and constraint engineering

Production layout in Cadence Allegro with constraint-driven placement and routing for dense digital boards.

Cadence Allegro PCB layout

Constraint-driven placement and routing with net classes, spacing, length, and differential rules maintained in Allegro.

High-speed digital design

Length matching, differential-pair control, and return-path discipline for multi-gigabit digital systems.

Constraint management

Rules captured before dense routing so reviews stay aligned with the actual design intent.

Interfaces, memory, and mixed-signal boards

Layout support for FPGA-centric processing, display paths, memory, and power-dense mixed-signal hardware.

FPGA and display interface boards

FPGA-centric processing and display pipeline boards, including eDP, VBO, LVDS, and related high-speed video paths.

SerDes and serial links

Interface-focused routing for serial links and display fabrics with constraints captured before layout lock.

DDR and memory routing

Memory topology, matching, and keep-out coordination under tight real-estate limits.

High-current power and mixed-signal boards

Power plane strategy, current paths, and analog/digital partitioning on mixed-signal control boards.

Stack-up, DFM, and manufacturing readiness

Release packages prepared for fabrication review — not a generic template dump.

Stack-up and impedance planning

Layer stack proposals coordinated with impedance targets and fabricator capability.

DRC, DFM, and manufacturing file review

Design-rule cleanup, Gerber package checks, and fabrication notes before tape-out.

Signal and power integrity coordination

Layout prepared for SI/PI review: clean reference planes, controlled discontinuities, and documented exceptions.

Prototype build coordination

Shenzhen fabrication, BOM buy, SMT, and sample delivery coordinated with manufacturing partners.

Prototype PCB, sourcing, and PCBA

PCB, component sourcing, SMT, and sample delivery coordinated with Shenzhen manufacturing partners after files and parts are ready.

What we provide — and what we coordinate

  • Production PCB layout in Cadence Allegro, including constraint-driven high-speed work.
  • Optional schematic review and constraint development with your hardware team.
  • Optional PCB, SMT, PCBA, and sample coordination through Shenzhen manufacturing partners.
  • We do not claim to own a PCB factory. Fabrication and assembly are partner-coordinated when in scope.
SIG GND SIG PWR SIG GND SIG
Illustrative layer order only — not a published stack-up for a named product.

Bring Us Your Engineering Challenge

Share your application, key interfaces, performance targets and development schedule. We will review the technical scope and propose a practical starting point.

Discuss Your Project