Design Office

Schematic & PCB layout

From component to production-ready board — schematic, layout, DFM, all in-house

Contact us Our process

Schematic and layout
by the same engineer

At Codium, schematic design and PCB layout are not subcontracted. The person who drew the schematic routes the board — they know every constraint by heart. The result : fewer back-and-forths, greater responsiveness, a board designed for production from the very first trace.

This continuity between schematic and layout eliminates the loss of information usually caused by handing over between two design offices or two engineers. DFM optimisations are built in from the schematic phase, not discovered at layout time.

Multilayer PCB layout in KiCad — Codium 4-layer high-density board
Since
day one
KiCad — Codium's design tool
+120
boards designed and produced
1 wk
on average — schematic + layout
100%
in-house — schematic & layout

From spec to manufacturing package

Every PCB design discipline is mastered in-house — from schematic timing constraints through to the final export.

Schematic

Electronic schematic

Complete design : power supply, microcontrollers, IoT connectivity, display interfaces, sensors. Timing, power and signal integrity constraints managed from the schematic stage.

Layout

PCB layout

From 2 to 8+ layers, high density, BGA, fine-pitch QFP. Controlled-impedance constraints, differential routing, ground plane management.

Signal

High-speed & signal integrity

USB 3, Gigabit Ethernet, DDR, MIPI, LVDS. Impedance control, length matching, careful decoupling for demanding high-speed interfaces.

DFM

Design for Manufacturing (DFM)

Built-in test points, optimised stencil margins, footprints validated in production. The board is designed for our workshop from the start — no surprises at industrialisation.

Libraries

Libraries & footprints

In-house libraries debugged and validated in production. Footprints optimised from field feedback : stencil apertures, solder mask relief zones.

Deliverables

Export & deliverables

Complete manufacturing package : Gerber, BOM, Pick & Place, 3D view for mechanical integration. Industry-standard formats.

Schematic + layout by the same person : why it changes everything

When schematic and layout are done by the same engineer, you gain time, quality and responsiveness. The engineer who drew the schematic knows every electrical constraint by heart — there is no need to relearn them at layout. DFM optimisations are built in from the schematic phase rather than discovered too late. Changes — frequent on any real project — are handled immediately, with no file handover and no loss of context between two people.

Fewer back-and-forths
The layout engineer knows the schematic — no kick-off meeting needed at each iteration.
DFM built in from the schematic
Manufacturing constraints are taken into account before the first trace is even routed.
Immediate responsiveness
A change mid-project? No handover delay, no cold restart.
Total consistency
Libraries, footprints, annotations — a single source of truth from start to finish of the project.
Example of a KiCad electronic schematic — Codium
KiCad schematic — power supplies, microcontroller, connectivity
Multilayer PCB layout in KiCad — colour multi-layer view
PCB layout — multi-layer view, differential traces

Our schematic & layout services

Whether you are starting from a blank sheet or already have an existing schematic to optimise, we step in at every stage of PCB design.

Complete schematic design
From spec to an annotated, verified schematic (ERC). Component selection, functional block hierarchy, embedded documentation.
Multilayer & high-density layout
From 2 to 8+ layers, BGA, fine-pitch QFP, 0201 components. Compliance with impedance rules, ground and power plane management.
Simulation & verification (DRC/ERC)
Systematic design rule checks (DRC/ERC), signal integrity checks, verification of impedance and length-matching constraints.
DFM & industrialisation preparation
Test points, stencil margins, board format selection, panelisation. The board is optimised for the SMT line from the layout stage.
Review of existing schematic/layout
Audit and correction of an existing design : identification of risks, DFM non-conformities, signal integrity optimisations. Detailed report provided.
Complete manufacturing package
Gerber export, structured BOM, Pick & Place file, STEP 3D view for mechanical integration. Compatible with industry-standard formats.

Production-ready in one week

Once the requirements are frozen and the components chosen, a production-ready schematic + layout takes no more than a week. And because manufacturing takes place in our own workshops, the same engineer follows the industrialisation — no loss of information, no handover risks.

Specs & requirements
Requirements gathering, selection of key components, definition of board format and layer count.
Schematic
Complete schematic design, ERC verification, review with the customer before moving on to layout.
Layout + DFM
Placement, routing, impedance control, built-in DFM optimisations. Final DRC before export.
Manufacturing package
Gerber, BOM, Pick & Place, 3D view. The package goes straight to manufacturing in our workshops.

Our tool : KiCad

Codium has used KiCad since the company was founded, for all of its projects. Open source, backed by CERN, with native 3D export and compatible with industry-standard formats. Source files are handed over to the customer with no licence restrictions — no proprietary software, no long-term lock-in risk.

Our symbol and footprint libraries are maintained in-house and validated in production. Every footprint is verified on a first prototype before being permanently added to the library.

Our experience with KiCad
KiCad 3D view of a Codium board — full render before release to manufacturing
3D view generated in KiCad — visual check before release to manufacturing

An electronic board project ?

Tell us your constraints — number of layers, critical components, lead times. We will get back to you quickly with an estimate.