SMT Assembly Capability

Precision SMT assembly, inspection, repair and testing support for demanding PCBA projects.

SMT production line for precision PCB assembly

SMT Production Line

A real SMT production line demonstrates placement capacity, process discipline and stable assembly control for 01005, fine-pitch IC and BGA projects.

SMT Capability

01005 components to advanced repair support

  • 01005 Components
  • BGA Assembly
  • DIP Assembly
  • AOI Inspection
  • X-Ray Inspection
  • Conformal Coating
  • ICT Support
  • VIP PAD Repair
  • PCB & IC Reballing
  • Socket Replacement
  • Programming & Test
SMT Process Capability

SMT process capability table

YourPCB provides a transparent SMT capability overview covering board size, SPI, precision placement, reflow, inspection and engineering support to help buyers evaluate assembly feasibility before RFQ.

Process CategoryItemStandard CapabilityAdvanced CapabilityEngineering Notes
PCB Size LimitsMinimum PCB Size50 x 50 mm30 x 30 mmPanelization is recommended below this size for stable production.
PCB Size LimitsMaximum PCB Size460 x 460 mm460 x 700 mmSupports large-format boards such as server boards and LED strip boards.
PCB Size LimitsPCB Thickness Range0.4 mm - 3.0 mm0.2 mm - 6.0 mmCovers ultra-thin FPC and thick multilayer assemblies.
Solder Paste Printing (SPI)Minimum Stencil Printing Pitch0.40 mm0.30 mmCritical for precise solder paste control on fine-pitch components.
Solder Paste Printing (SPI)3D SPI Solder Paste InspectionAvailable (area / volume / height / bridging)Available (closed-loop feedback to printer)Inline inspection after printing helps prevent a high percentage of soldering defects.
SMT Placement CapabilityMinimum Chip Component0402 (1005 Metric)01005Supports miniaturized assemblies for wearable and compact electronics.
SMT Placement CapabilityMaximum Mountable Component45 x 45 mm150 x 50 mm (長連接器)Covers large or odd-form components and connectors.
SMT Placement CapabilityMinimum Lead Pitch (QFP)0.40 mm0.30 mmSupports fine-pitch IC placement accuracy.
SMT Placement CapabilityMinimum Ball Pitch (BGA)0.50 mm0.25 mmDefines process capability for BGA and CSP packages.
SMT Placement CapabilityPlacement Accuracy (3 sigma)± 40 um± 30 umSupports high-precision packages with advanced alignment control.
Reflow SolderingReflow Heating Zones8 溫區10 溫區More heating zones enable more accurate thermal profile control.
Reflow SolderingNitrogen Reflow SolderingNo / optionalLine support (N2 <= 500 ppm)Reduces oxidation during lead-free soldering and improves solderability.
Reflow SolderingDouble-Sided Reflow ProcessSupportedSupported (including adhesive fixing for second reflow)Supports process control when heavy components are mounted on both sides.
Quality Inspection (QC)3D AOI InspectionAvailable (3D optical inspection)Available (full-line 3D AOI)Inspects missing parts, polarity, wrong parts and insufficient solder.
Quality Inspection (QC)X-Ray InspectionAvailable (offline sampling inspection)Available (3D CT X-Ray / automated inspection)Used to inspect BGA voiding and hidden solder-joint defects.
Quality Inspection (QC)First Article Inspection (FAI)Manual multimeter measurementAutomatic FAI system (LCR comparison)Prevents incorrect reel loading during line setup.
Quality Inspection (QC)Electrical Functional TestFixture test (FCT)FCT + flying probe + ICT circuit testOpen/short and functional verification according to customer specifications.
Production & Engineering SupportSpecial Process CapabilityLead-free processUnderfill / dispensing processImproves BGA vibration resistance and moisture/corrosion protection.
Production & Engineering SupportFast Prototype Build3 - 4 days24 - 48 hoursFast response for NPI and prototype phases.
Production & Engineering SupportProduction Volume FlexibilitySmall to medium-volume productionPrototype to mass productionFlexible line changeover from prototype to volume production.
Production & Engineering SupportDFM Engineering ReviewBasic manufacturability reviewFull DFM optimization reportIdentifies component opening, pad and manufacturability issues before production.
SMT Process Control

Inspection data and operator judgment behind every build

YourPCB integrates 3D SPI, 3D AOI, X-Ray and printing process control to verify solder paste quality, placement condition and hidden solder-joint reliability throughout SMT production.

3D SPI solder paste inspection for SMT assembly

3D SPI Solder Paste Inspection

Controls paste volume, area, height and offset before placement to improve first-pass yield.

3D AOI operator review for SMT assembly quality

3D AOI Review

Confirms polarity, missing parts, solder shape and placement condition after reflow.

X-Ray inspection for BGA and hidden solder joints

X-Ray Inspection

Verifies BGA, QFN and hidden solder joints that cannot be confirmed visually.

Automatic solder paste printer setup

Printing Setup

Stable stencil alignment and printing setup are the foundation of high-reliability SMT assembly.

Process

SMT assembly workflow

BOM Review
Stencil
Solder Paste
Pick & Place
Reflow
AOI / X-Ray
Test
Programming & Functional Test

Programming and functional verification before shipment

YourPCB supports assembly validation, fixture-based testing and customer-specific verification beyond SMT placement, helping customers reduce risk before shipment.

PCBA programming and test setup

Programming Test Setup

Fixture-based programming and test setup supports firmware loading, interface verification and repeatable customer-specific PCBA validation.

Functional test operation for assembled PCB

Functional Test Operation

Functional test operation verifies product behavior under real operating conditions and helps reduce field failure risk before delivery.

Capability Download

Download PCB / SMT process capability PDFs

Receive bilingual PCB and SMT capability documents for supplier qualification, engineering evaluation and RFQ preparation.

Engineering Topic Cluster

SMT focused capability pages

Each focused SMT capability page explains inspection, assembly or test requirements to help buyers prepare a clearer RFQ package.

AOI Inspection

Engineering-focused capability content for evaluation and quotation preparation.

SPI Inspection

Engineering-focused capability content for evaluation and quotation preparation.

X-Ray Inspection

Engineering-focused capability content for evaluation and quotation preparation.

BGA Assembly

Engineering-focused capability content for evaluation and quotation preparation.

ICT Testing

Engineering-focused capability content for evaluation and quotation preparation.

VIP Pad Repair

Engineering-focused capability content for evaluation and quotation preparation.