Unified Engineering Pipeline
PCB design, firmware, and mechanical teams under one program — assembly inherits validated releases.
Manufacturing · PCB Assembly & EMS
From PCB Design to Production-Ready Electronics
SDI bridges PCB design and electronics manufacturing with assembly programs that account for component lifecycle, DFM constraints, and production consistency from first spin to volume build.
Our Silicon Valley engineering team coordinates SMT assembly, through-hole work, functional testing, and product integration — so your boards arrive production-ready, not just assembled.
Engineering Meets Manufacturing
Where board files meet factory reality — and where most programs lose time if engineering and assembly are disconnected.
Board Design Files
Gerbers, BOMs, and pick-and-place data must align with assembly house capabilities — mismatches cause rework, delays, and silent quality issues.
Component Lifecycle
EOL parts, allocation risk, and second-source gaps derail assembly schedules unless sourcing is validated before line commitment.
Production Consistency
Repeatable solder profiles, AOI coverage, and test procedures ensure every build matches the approved golden unit — not just the first.
PCB Assembly Services
Core assembly and integration lines from prototype builds through production volume.
- 01
Prototype Assembly
Low-volume SMT and through-hole builds for EVT/DVT validation and design iteration.
- 02
Production Assembly
Volume SMT lines with process controls, traceability, and ramp scheduling.
- 03
SMT & Through-Hole
Mixed-technology assembly including fine-pitch BGAs, connectors, and mechanical inserts.
- 04
Component Sourcing
BOM validation, approved vendor lists, lifecycle analysis, and allocation management.
- 05
Functional Testing
ICT, flying probe, and custom functional test fixtures aligned to your firmware boot sequence.
- 06
Product Integration
Final assembly, enclosure integration, labeling, and ship-ready packaging.
EMS Capabilities Matrix
Electronics manufacturing services beyond bare board assembly.
Rigid-Flex Boards
Assembly and handling protocols for flex, rigid-flex, and high-density interconnect boards.
Box Builds
Complete product assembly integrating PCB, enclosure, display, and peripheral subsystems.
Custom Cable Harnessing
Wire harness design, crimping, and connector integration for complex product wiring.
Programming & Calibration
In-circuit programming, firmware flashing, and sensor calibration on the production line.
AOI Inspections
Automated optical inspection for solder quality, component placement, and polarity verification.
Global Distribution Packaging
Retail-ready packaging, labeling, and fulfillment coordination for commercial release.
Products We Support
End-product categories where SDI assembly and EMS programs deliver production-ready electronics.
End Products
- IoT Devices
- Robotics
- Smart Sensors
- Medical Devices
- Consumer Electronics
- Industrial Controls
- Wearables
- Gateway & Edge Hardware
- Automotive Electronics
- Security Systems
Why Choose SDI
Engineering-Led DFM
Assembly reviews happen during design — not after boards arrive at the factory.
Silicon Valley Oversight
California engineers drive BOM decisions, test strategy, and production release gates.
Global EMS Network
Vetted assembly partners with domestic pilot options and Asia volume capacity.
Beyond PCB Assembly
Manufacturing support domains integrated with every assembly program.
DFM & Design Review
Pre-assembly design audits for solderability, test access, and BOM economics.
Embedded Firmware
Production images, provisioning scripts, and factory test firmware packages.
Quality Assurance
Incoming inspection, in-process checkpoints, and pre-shipment validation protocols.
Production Scaling
Ramp planning, yield tracking, and volume transition from pilot to full production.
Ready to Build Your Electronics?
Share your BOM, board files, or assembly requirements. Our team will scope prototype builds, production assembly, and EMS support as one integrated program.
Request Free EstimateFrequently asked questions
Common questions about PCB assembly, EMS capabilities, component sourcing, testing, and production timelines.
What PCB assembly services does SDI provide?
Prototype and production SMT, through-hole, mixed technology, component sourcing, functional testing, and product integration.
Do you handle component sourcing?
Yes. BOM validation, approved vendor lists, lifecycle analysis, and allocation management are part of our assembly programs.
Can you assemble rigid-flex and high-density boards?
Yes. We support rigid-flex, fine-pitch BGAs, and complex interconnect assemblies with appropriate handling protocols.
Do you provide functional testing?
ICT, flying probe, and custom functional test fixtures aligned to your firmware and hardware requirements.
What is the difference between PCB assembly and EMS?
PCB assembly focuses on board-level SMT/THT; EMS extends to box builds, harnessing, programming, packaging, and full product integration.
Do you integrate firmware programming on the line?
Yes. In-circuit programming, flashing, and calibration are coordinated with embedded engineering.
How do you ensure production consistency?
AOI inspection, golden unit reference, process controls, and documented test procedures for every build.
What product categories do you support?
IoT, robotics, sensors, medical, consumer, industrial, wearables, and connected hardware platforms.
How long does a prototype assembly take?
Typical prototype builds run 2–4 weeks depending on BOM complexity and component availability.
How do I request a free estimate?
Submit your BOM, Gerbers, and volume targets through our contact form.