EMS Services
for the Entire Lifecycle
At Guinaz, we want to support you throughout the entire lifecycle of your products. Whatever the development phase you are in, our services are designed to help you improve efficiency, reliability, and quality from start to finish.
R + D | Electronic Development.
We design or redesign electronic boards based on customer needs: cost optimisation, technical improvements, or adaptation to new regulations.
Redesign of existing boards.
We intervene on customer designs to optimise their performance or reduce their cost.
Incident resolution.
We work on problematic designs to correct functional failures, interference, noise, or mechanical/thermal vulnerabilities.
Adaptation to regulations.
We adjust designs to standards such as CE, ISO 13485, IATF 16949, or specific requirements for the medical, automotive, or vending sectors.
Development from scratch.
In specific cases, we develop the complete board design ourselves if the customer requires it, including schematic, PCB, BOM, and production documentation.
External coordination.
We collaborate with specialist partners if the project requires mechanical aspects, firmware, or specific certifications.
NPI | New Product Introduction
We turn the idea into a manufacturable, testable, and profitable board, reducing risks before ramp-up.
FullDfX analysis (DfM,DfT,DfC).
We evaluate the design before manufacturing to ensure its manufacturability, testability, and economic viability.
Technical BOM review.
We identify obsolescence risks, critical references, or incompatibilities and propose improvements, if necessary.
Industrial pre-series.
We manufacture limited batches to validate assembly, testing, and functional behaviour. We adjust processes before producing in volume.
Cross-team review.
The technical, quality, production, and purchasing departments jointly validate that the product is ready to scale.
Documentation and traceability from the start.
Complete traceability is structured from the NPI stage by batch, operator, and process parameters.
Test and Validation.
We verify the quality, functionality, and reliability of each unit with test equipment adapted to each product and customer.
Optical and functional tests.
SPI, AOI, ICT, FCT, Boundary Scan.
Product-specific tests.
Development of jigs, fixtures, and test firmware if the customer requires it.
Full coverage.
100% inspection or sampling based on criticality, with unit traceability.
Pre-series validation.
Every series starts validated with a checklist, tests, and results recording.
Full box functional test.
Verification of connectivity, consumption, and real behaviour in case of box-building.
Industrialisation.
We prepare each product for series manufacturing, defining the processes, tools, and controls that ensure quality, repeatability, and efficiency.
Technical layout validation.
We review the PCB design to ensure correct assembly, test accessibility, and thermal and mechanical robustness.
Definition of tooling and auxiliary means.
We develop assembly, fixing, testing, or control tools necessary to guarantee repeatable processes. We also use internal 3D printing for specific elements or poka-yokes.
Document preparation.
We generate all process documents: route sheets, work instructions, control plans, and traceability records.
Validated process parameters.
We adjust reflow thermal profiles, selective soldering cycles, test times, and torques, among others.
Online resource optimisation.
We ensure the product can be assembled without interruptions or improvised adaptations.
Electronic Production.
We manufacture with flexible and controlled processes, adapting to the volume, complexity, and technical requirements of each product.
High-precision SMT lines.
Assembly of small format, high density, and double-sided components.
THT (PTH) assembly.
Wave or manual soldering, ideal for connectors, power components, or robust applications.
Selective soldering.
Lead-free processes, nitrogen atmosphere, and optimised profiles per product family.
Selective coating.
Varnishing for protection against humidity, contamination, or aggressive environments.
Box-building.
Complete integration of the electronic product, from the board to the final packaging.
Controlled environmental conditions.
ESD, temperature, humidity, and particle monitoring.
Supply Chain Management.
Good manufacturing starts with good purchasing. We ensure component supply with an agile, preventative, and global purchasing network.
Multi-channel sourcing.
We work with official distributors, brokers, and direct manufacturers in Asia, Europe, and the USA.
Preventative planning.
We collaborate with the client on forecast scenarios to ensure advance purchasing.
Obsolescence management.
We apply ‘lifetime buy’ principles by implementing early alerts, proposing alternatives, and strategic purchasing.
Logistics consolidation.
Logistics consolidation.
After-Sales Support.
We support our clients after delivery to ensure product reliability, continuity, and evolution.
Failure analysis.
In case of an incident, we analyse its origin and propose structural improvements, whether in design, process, or testing.
Modifications and versions.
We adapt existing boards in the field to new functionalities or environments.
Variant production.
We can produce small series derived from the same design, adapted by firmware, connectivity, or mechanics.
Service and technical advice.
Our clients have a direct channel to quality and engineering to ensure rapid support.
