Acceptance of your dossier

We arrange a meeting with you to discuss your project and to clearly identify your technical requirements and deadline.

At this initial meeting, we complete the dossier acceptance form with you which specifies in detail each element of the study.

Confidentiality

Your electronic schematics are your property and must remain confidential. When we take on a dossier, we sign a confidentiality agreement if you so wish.

The basic elements of a study

The schematic

Most designers use schematic entry software which allows a NETLIST to be generated which we import into our development system. This contains a list of the components, their footprint and a list of connections.

The study can also be based on a hand-drawn diagram. In this case, we can capture the diagram or, where appropriate, simply encode the list of connections.

The mechanical drawing

If the card has specific dimensions or cuttings, a detailed mechanical drawing is required. This specifies the fastening points, the "forbidden" zones in which tracks cannot be implanted, etc...

Component specifications

We have a very extensive library of components. However, it is helpful if you include with the dossier the electrical and dimensional elements of specific or rare components.

A list of recommendations

To this list, the designer adds specific points which must be respected during the study: assembly technology, currents in the portions of circuits, isolation voltage among wire assemblies, special shielding, etc.

The bid

A detailed and binding bid is sent to you as promptly as possible. Where necessary and for very complex dossiers, a preliminary surfacing study is carried out to confirm the feasibility of the dossier.

The layout of components

The first phase of the study consists in drawing any contours and cuttings for the circuit.

The components are then positioned and a draft layout is proposed to the designer with a view to its validation. If necessary, the layout is modified.

Routing

Routing is our core business. Although our development systems allow automatic routing, we route each track separately to guarantee optimum electrical results.

In addition, the thicknesses of the tracks and the clearances are carefully selected to limit the subsequent production costs of the circuit (manufacturing class).

Approval

After the routing phase, we supply files in pdf or a hard copy of the different drawings making up the dossier. An exact replica of the circuit can be supplied in AUTOCAD R14 format with a view to validation by the mechanical engineers.

Certain minor details can still be changed at this stage.

Content of the dossier

Manufacturing data

These data are intended for the manufacturer of printed circuits and include:

  > GERBER files of the different layers

  > The GERBER clipping file

  > A list of APERTURES

  > The EXCELLON file containing the drilling data

  > A list of TOOLS used for drilling

Documents on paper

  > A document summarizing the manufacturing data

  > A hard copy of the different layers

  > The assembly drawings of the components

  > The drilling plan

Component data

  > A list of the components in XLS format

  > The PICK & PLACE ascii file

  > The GERBER file for the creation of the solder paste stencil

CD-ROM

The contents of the entire dossier can be supplied on CD-ROM, with the drawings in pdf.

They can also be sent by e-mail.