We use Cadence® Allegro® PCB Design software exclusively for printed circuit board design.  Allegro® offers the leading physical and electrical constraint-driven PCB layout and interconnect routing system.

We maintain our own padstack and component footprint library in accordance with the IPC-7351 standard, where appropriate.  Industry standard IPC specifications are utilized to design printed circuit boards that are reliable and readily assembled by high tech. electronic manufacturing service companies.

Our principal engineer has eleven years experience using Cadence® electronic design automation (EDA) software — Allegro® PCB Editor, Allegro® PCB Librarian, Allegro® PCB Router (SPECCTRA®), and Allegro® PCB SI (SPECCTRAQuestTM).

We have PCB designs in production ranging from 2 to 34 layers, from 8 to 544 square inches, incorporating features as miniature as 3 mil lines and 4 mil spaces.

Corporate assets include Allegro® PCB Design HDL 220 (PCB Design L).  Tools we do not own are leased with a Cadence® eDAcard.

Cadence® Allegro® Printed Circuit Board Design

Our principal engineer has eleven years experience using Cadence Concept and is known for producing readable schematics.  We design and maintain our own schematic symbol library.

Corporate assets include Allegro Design Entry HDL.

© 2009 Somerville Auto Electric, Inc.  All Rights Reserved.

Standards

IPC-2221A General Standard on Printed Board Design

IPC-2222 Sectional Standard on Rigid PWB Design

IPC-2223A Sectional Design Standard for Flexible Printed Boards

IPC-4101B Specification for Base Materials for Rigid and Multilayer Printed Boards

IPC-4562 with Amendment 1 — Metal Foil for Printed Wiring Applications

IPC-6011 Generic Performance Specification for Printed  Boards

IPC-6012B with Amendment 1 — Qualification and Performance Specification for Rigid Printed Boards

IPC-6013A with Amendment 2 — Qualification and Performance Specification for Flexible Printed Boards

IPC-7351 Generic Requirements for Surface Mount Design and Land Pattern Standard

· IPC-7351 Land Pattern Viewer

IPC-SM-840C with Amendment 1 — Qualification and Performance of Permanent Solder Mask

Allegro® PCB Editor