Skip BOM Headaches
We Source Parts & Assemble

680,000+ in-stock components with smart BOM matching

100% genuine, traceable from authorized distributors

Supports pre-order parts with no inventory cost

Rapid Turnaround

As fast as 24-hour PCB assembly

720,000+ In-Stock Components

Fast, reliable sourcing

Consistent Quality

99% PCBA first-pass yield

All-in-One PCBA

PCB, Parts, Stencil & SMT

How to Order PCB Assembly Online

01 Upload Your PCB Files
order processAll uploads are secure and confidential.
02 Review & Confirm Components
  • Our system automatically matches components based on your BOM and inventory availability.
  • Review and confirm selected parts with an interactive 3D viewer to verify component placement and orientation, helping catch potential assembly issues early.
03 Place Your PCBA Order

Submit your order in just a few clicks and track real-time progress from engineering review to production and shipping.

04 Receive Your Assembled PCBs
  • Get fully assembled boards in as fast as 1 week. Accelerate prototyping, iterate faster, and bring your product to market sooner.
Quote & Order Now

PCB Assembly Capabilities for Prototypes & Production

Core PCB Assembly Capabilities

 
 
SMT, THT & Mixed PCB Assembly
Supports Surface Mount Technology (SMT), Through-Hole Technology (THT), and mixed-technology PCB assembly.
Single-Sided and Double-Sided Assembly
Supports SMT and THT component assembly on both single-sided and double-sided PCBs.
Precision Handling for Fine-Pitch Components
Reliable assembly of ultra-small components (01005, 0201) and complex packages, including QFN, QFP, BGA, and LGA.
Advanced Soldering
  • Nitrogen Reflow Soldering – reduces oxidation and improves joint reliability
  • Wave & Selective Soldering – efficient solutions for through-hole components
  • Precision Hand Soldering – ideal for complex or sensitive PCB assemblies
Prototype to Production Flexibility
Start from just 2 boards, supporting rapid prototyping, NPI validation, and low-to-mid volume production.

Value-Added Services

 
 
Custom Stencil Solutions
  • Step Stencil
  • Stencil Apertures for Unassembled Pads
  • Nano-Coated Stencil
  • Customer-Provided Stencil Files
Component Baking
Strict moisture control process to prevent component cracking and soldering defects during reflow.
Conformal Coating
Acrylic-based coating protects PCBs from moisture, dust, chemicals, and extreme temperatures.
Thermal-Safe Soldering Options
Low- and mid-temperature solder pastes protect heat-sensitive components and improve reliability in specialized applications.
ESD Packaging
Comprehensive anti-static packaging ensures safe handling and delivery throughout the process.
Parts Selection Support
Assists with component matching based on uploaded files, resolving mismatches, availability issues, and suggesting alternatives.

PCBA Testing & Quality Control

 
 
SPI (Solder Paste Inspection)
Uses 2D/3D SPI to detect solder paste volume, height, offset, and bridging—addressing up to 80% of SMT defects at the printing stage.
AOI (Automated Optical Inspection)
Applies 2D/3D AOI to identify component misalignment, polarity errors, missing parts, and visible solder defects.
X-Ray Inspection
Performs X-ray inspection for hidden joints in BGA, QFN, and LGA packages, analyzing voids, bridging, and internal defects.
Flying Probe Test
Verifies PCBA connectivity and electrical integrity via probing, enabling open/short detection without dedicated fixtures—ideal for prototypes and low-volume runs.
Functional Testing
Conducts power-on and functional testing based on customer requirements to ensure proper operation before shipment.
Manual Visual Inspection
Uses manual visual inspection with high magnification to check solder joint quality, component orientation, and workmanship details.
IC Programming
Flash firmware to microcontrollers and memory devices using customer-specified tools, methods, and interfaces.

Why Choose JLCPCB's PCB Assembly Service

Advanced PCB Assembly

  • •In-house factory with fully automated SMT lines
  • •High-speed pick-and-place machines & high-precision inspection equipments
  • •Stable production with consistent industrial-grade quality

Stable Component Supply Chain

  • •720,000+ in-stock parts ready for immediate assembly
  • •Flexible sourcing via global procurement or consigned parts
  • •One-click BOM matching and alternative parts suggestions

True Turnkey PCB Assembly

  • •Seamlessly bridge PCB > Components > Stencil > SMT in one platform
  • •Free DFM/DFA analysis to identify and fix design risks early
  • •Unified platform to save time and eliminate vendor hassle

Cost-Effective Pricing & Fast Delivery

  • •PCBA pricing starts at $8 setup + $0.0016 per solder joint
  • •As fast as 24-hour assembly turnaround
  • •24/6 online customer support

What Customers Say About Our PCB Assembly Services

這裡到時候你放你們自己的評論

FAQs About PCB Assembly Services

How much does PCB assembly cost?
Typically, the total cost of PCB assembly includes setup fees, stencil, assembly labor, and components, with real-time pricing available through the online quote system.
For a detailed cost breakdown and pricing examples, check our full guide: PCB Assembly Price Details
How do I prepare a BOM file for PCB assembly?
Make sure your BOM includes: component values, reference designators, package types, and manufacturer part numbers. Standard formats like .csv, .xls, or .xlsx are recommended.
View detailed instructions and a sample BOM file here: Complete BOM guide
How can panelization reduce PCB assembly costs?
Panelization groups multiple PCBs into one panel so they can be assembled simultaneously, improving efficiency and lowering cost per unit.
For better efficiency and pricing, panelization is strongly recommended for quantities over 50 pcs.
See detailed PCB panel guidelines.
How long does PCB assembly take?
PCB assembly begins immediately after PCB fabrication is completed. Since all necessary materials—such as components, engineering data, and solder paste stencils—are prepared in advance, there is no delay between stages.
About 90% of PCB assembly orders are completed within 24 hours, and most within 48 hours at most.
This makes it ideal for rapid prototyping and urgent production needs.
Learn more about lead times and production details here: SMT Service Lead Time Guide
What if I can’t find a component in the JLCPCB parts library?
Components for PCB assembly can be sourced in multiple ways, depending on your needs:
  • In-stock components from JLCPCB’s parts library (fastest option)
  • Global sourcing via trusted distributors (lead time: 9–15 days)
  • Pre-order parts added to your private library
  • Consigned parts supplied by you
  • New part requests if a component is not yet listed
This flexible sourcing system ensures you can always find or request the components required for your project.
See all components sourcing methods and requirements here: PCB Assembly Parts Sourcing Guide

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