PCB Design, Manufacturing & Turnkey PCBA Services
From hardware development and PCB layout to PCB fabrication, component sourcing, in-house SMT assembly and prototype production, Excel Circuit helps engineering teams bring electronic products from concept to production.
Engineering Support · PCB Fabrication · In-House SMT · Component Sourcing
01Schematic Engineering
02PCB Layout
03Assembled PCBAEngineering and Manufacturing Support Under One Project Team
In-House PCB Design Engineers
Technical support for schematic design, PCB layout and complex board-level engineering.
Qualified PCB Manufacturing Resources
PCB fabrication support for prototype, low-volume and production requirements.
In-House SMT Assembly
Our own SMT production capability for prototype and production assembly.
Component Sourcing Support
BOM sourcing, alternative-part support and coordinated component procurement.
Prototype to Production
Support from early-stage engineering through assembled prototype and production delivery.
Integrated PCB Engineering and Manufacturing Services
Whether you already have production-ready Gerber files or need engineering support from the schematic stage, Excel Circuit can support your project through design, fabrication, sourcing, assembly and testing.
PCB Design
Schematic design, PCB layout and engineering support for high-speed, HDI, RF, FPGA, power and mixed-signal electronics.
- Schematic Design
- PCB Layout
- High-Speed Routing
- HDI & BGA Fanout
- RF PCB Design
- FPGA & Embedded
- Power Electronics
- DFM / DFA Review
PCB Manufacturing
Reliable PCB fabrication for prototypes and production, including multilayer, HDI, RF, rigid-flex, heavy copper and controlled-impedance boards.
- Multilayer PCB
- HDI PCB
- RF / High Frequency
- Rigid-Flex PCB
- Heavy Copper
- Controlled Impedance
- Prototype & Production
- Engineering Review
Turnkey PCBA
Component sourcing, in-house SMT assembly, inspection, testing and complete prototype or production support.
- Component Sourcing
- In-House SMT
- Prototype Assembly
- Low-Volume Production
- AOI / X-Ray as Required
- Manual Assembly
- Testing
- Prototype Support
From Concept to Production
Integrated engineering, PCB manufacturing, component sourcing, in-house SMT assembly and production support from prototype through production.
Concept & Requirements
Define technical requirements, interfaces, performance targets and production goals.
Hardware Architecture
Select the system architecture, major ICs, interfaces, power strategy and key components.
Schematic Design
Develop and review the circuit design before layout.
PCB Layout
Complete stackup planning, placement, routing, impedance control and design-rule verification.
PCB Manufacturing
Coordinate fabrication for the required board technology, material, tolerance and quantity.
Component Sourcing
Procure BOM components and support approved alternatives when necessary.
In-House SMT Assembly
Assemble boards using our in-house SMT production capability.
Inspection, Testing & Delivery
Complete inspection, functional verification, debugging support and prototype or production delivery.
One engineering partner throughout the complete product development cycle.
PCB Engineering for Complex Electronics
Our engineering team supports PCB designs that require more than basic component placement and routing.
High-Speed Digital Design
DDR, PCIe, USB, Ethernet, controlled impedance, differential routing and length matching.
Explore MoreHDI PCB Design
Microvias, blind and buried vias, fine-pitch BGA fanout and high-density routing.
Explore MoreRF PCB Design
Transmission-line routing, impedance control, grounding, shielding and RF layout.
Explore MoreEmbedded & FPGA Design
FPGA, MCU, MPU, DDR memory, power sequencing and high-speed interfaces.
Explore MorePower Electronics
High-current routing, thermal management, power integrity and switching power design.
Explore MoreAnalog / Mixed Signal
Sensitive analog circuitry, grounding, ADC / DAC interfaces and signal partitioning.
Explore MorePCB Manufacturing for Prototype and Production
Excel Circuit provides PCB manufacturing services across a broad range of technologies. Fabrication resources are selected according to project technology, material, volume and quality requirements, while engineering review, manufacturing coordination and delivery are managed by our team.
Technical Capability Highlights
- Multilayer stackups
- Blind / buried vias
- Microvias
- Fine-pitch BGA support
- Controlled impedance
- Common surface finishes
- Heavy copper options
- Electrical testing

In-House SMT Assembly
Our in-house SMT assembly capability gives us direct control over assembly quality, process coordination, inspection and production scheduling for prototype and production PCBA projects.
- SMT Assembly
- Fine-Pitch Components
- BGA / QFN / LGA
- Pick & Place
- Reflow Soldering
- SPI where available
- AOI Inspection
- X-Ray where available
- Manual Assembly
- Functional Testing
By combining PCB design, component sourcing and assembly support under one project team, engineering issues can be identified earlier and communicated more efficiently.
Explore SMT AssemblyComponent Sourcing & BOM Support
We support BOM procurement for prototype and production projects, helping customers consolidate component sourcing with PCB fabrication and assembly.
- BOM Review
- Component Procurement
- Traceable Supply Support
- Alternative Part Evaluation
- Obsolescence Support
- Shortage Coordination
- Consigned or Turnkey Components
- Prototype & Production Procurement
Engineering Support Across Multiple Industries
Our role varies by project—from PCB layout support to complete hardware development, fabrication, sourcing and assembled prototype delivery.
Industrial Electronics
IoT & Connected Devices
Communications
Automotive Electronics
Medical & Instrumentation
Robotics & Automation
Power Electronics
Consumer Electronics
Why Engineering Teams Work With Excel Circuit
Engineering-Led Support
Projects are supported by engineers who understand schematic design, PCB layout and manufacturing requirements.
Design-to-Manufacturing Continuity
Design decisions are reviewed with downstream fabrication and assembly requirements in mind.
Flexible PCB Manufacturing
Fabrication technologies are matched with qualified resources according to project requirements.
In-House SMT Capability
Assembly is supported by our own SMT production capability.
Integrated Component Sourcing
PCB, BOM and assembly coordination can be managed through one project team.
Prototype to Production
Support is available from early engineering stages through prototype and production.
Quality Begins Before Production
Quality is not limited to final inspection. Our process emphasizes engineering review, manufacturability, component verification, assembly control and appropriate testing before delivery.
Engineering Projects & PCB Case Studies
See how engineering, PCB fabrication, component sourcing and assembly work together in real projects.
Industrial Control Board Development
Requirements, circuit architecture, PCB engineering, fabrication and prototype verification for an industrial control platform.
View Project Case StudyAutomotive Control Module Development
Protection, mixed-signal layout, component planning, assembly coordination and validation.
View Project Case StudyData Acquisition System Development
Analog and digital architecture, layout, PCBA build support and functional signal testing.
View Project Case StudyPCB Engineering Knowledge Center
Technical articles covering PCB layout, high-speed design, HDI, RF, FPGA, power integrity, signal integrity and manufacturing considerations.
High-Speed PCB Design Guidelines
Routing, impedance, return-path and interface decisions for reliable high-speed hardware.
Explore TopicHDI PCB Design
Microvias, stackups, BGA fanout and routing strategies for dense electronic systems.
Read Technical GuideRF PCB Layout
Materials, transmission lines, grounding and production considerations for RF boards.
Read Technical Guide