PCBA Assembly & Electronics Manufacturing Services Provider

Turnkey SMT PCB Assembly Services | Fast Turnaround & No MOQ

SMT PCB Assembly

 

Precision SMT PCB Assembly Services

High-speed, high-accuracy surface mount assembly for prototypes and mass production. Handling everything from 01005 components to complex BGA with 100% AOI inspection.

Support for BGA, QFN, and 01005 parts.

State-of-the-art pick-and-place lines.

We source, we build, we test, you grow.

SMT PCB Assembly Process Showcase

Solder Paste Printing in SMT Assembly

Solder Paste Printing

Using high-precision stencils and SPI (Solder Paste Inspection) to ensure a perfect foundation.

Solder Paste Printing Process in SMT Assembly

Reflow Soldering

Optimized thermal profiling to ensure strong, reliable solder joints without damaging sensitive parts.

Reflow Soldering Process in SMT Assembly

High-Speed Pick & Place

Automated machines placing components with micron-level accuracy.

AOI and X-Ray PCB Inspection in PCB Assembly

AOI & X-Ray Testing

100% Automated Optical Inspection and 3D X-Ray for BGA/hidden joints.

Why Choose Our SMT Services?

01005 Ready: We are equipped with advanced machinery to handle ultra-miniature components, ideal for wearable technology and miniaturized medical devices.

BGA Expertise: We offer professional BGA reballing and rework services, supported by 3D X-Ray inspection to ensure the integrity of hidden solder joints.

Component Integrity: Our strict ESD (Electrostatic Discharge) management and moisture-control protocols ensure all components remain in optimal condition prior to placement.

Rigorous Quality Control: A comprehensive inspection suite featuring SPI (Solder Paste Inspection) + AOI (Automated Optical Inspection) + X-Ray Inspection + FCT (Functional Testing).

Technical Specifications

FeatureSMT Capabilities
Min. Component Size01005, 0201, 0402
Fine Pitch PartsBGA, Micro-BGA, QFN, CSP, PoP (Package on Package)
BGA PitchDown to 0.3mm
Max. Board Size500mm x 450mm (Can be adjusted according to actual circumstances)
Mounting Speed50,000+ CPH (Chips Per Hour)
ComplianceIPC-A-610 Class 2 & Class 3

FAQ

SMT Assembly (Surface Mount Technology Assembly) is the process of mounting and soldering electronic components directly onto the surface of a printed circuit board (PCB). Unlike traditional through-hole assembly, SMT Assembly does not require drilling holes through the board. At Tengxinjie, our SMT PCB Assembly services handle components as small as 01005 with high-speed pick-and-place machines, achieving over 50,000 chips per hour. This technology enables smaller, lighter, and more reliable electronic products.

SMT PCB Assembly mounts components directly onto the board surface using solder paste and reflow soldering. Traditional through-hole assembly requires component leads to pass through drilled holes. PCB SMT Assembly offers several advantages: higher component density, faster production speeds, better performance at high frequencies, and lower manufacturing costs for high-volume production. Most modern electronics—from smartphones to medical devices—rely on SMT PCBA for their compact, high-performance designs.

Our SMT Service handles a full range of surface mount components, including:

  • Ultra-miniature passives: 01005, 0201, 0402

  • Fine-pitch ICs: BGA, Micro-BGA, QFN, CSP

  • PoP (Package on Package) and QFP packages

  • Connectors, diodes, transistors, and LEDs
    Whether you need a SMT Circuit Board for simple consumer electronics or complex industrial controls, our equipment and expertise deliver precision placement every time.

SMT PCB Board is a printed circuit board designed specifically for surface mount components. Unlike boards intended for through-hole parts, SMT PCB Boards have solder pads on the surface rather than holes. This design allows for double-sided component placement, higher circuit density, and automated assembly. As a full-service PCB SMT provider, Tengxinjie can build SMT PCB Boards ranging from simple single-layer designs to complex 32-layer HDI structures.

Our SMT Manufacturing service is a complete turnkey solution. We provide:

  • PCB fabrication (rigid, flex, or rigid-flex)

  • Component sourcing from authorized distributors

  • Solder paste stencil design and printing

  • High-speed pick-and-place SMT Placement

  • Reflow soldering with optimized thermal profiling

  • 100% AOI, SPI, and X-Ray inspection

  • Functional testing and programming

  • Box build assembly and packaging
    From SMT Prototype Board to full production, we handle everything under one roof.

Yes. Our SMT Production lines are flexible to accommodate any order quantity. For SMT Prototype Board projects, we offer fast turnaround (as quick as 24-48 hours) with no minimum order quantity. For high-volume SMT Production, our automated lines achieve over 50,000 chips per hour, ensuring consistent quality and competitive pricing. Whether you need 5 boards or 500,000, our SMT Factory is equipped to deliver.

SMT Package from Tengxinjie is a fully documented assembly service that includes:

  • Engineering review and DFM check

  • Solder paste stencil fabrication

  • SMT Placement and reflow soldering

  • AOI and X-Ray inspection

  • Functional testing

  • Clean, vacuum-sealed packaging for shipment
    We also offer custom SMT Package options for clients requiring additional services such as conformal coating, IC programming, or box build assembly.

SMT Board Assembly mounts components on the board surface using solder paste and reflow ovens. Through-hole assembly requires component leads to pass through drilled holes and is typically wave-soldered. SMT Board Assembly is faster, allows for smaller components, and supports double-sided mounting. However, some components (large connectors, transformers) still require through-hole for mechanical strength. Most modern projects use SMT Assembly Service as the primary method, with selective through-hole for specific parts.

Our SMT Plant is located in Shenzhen, China, within a 70,000+ sqft ISO-certified facility. We operate state-of-the-art SMT PCB Manufacturing lines including high-speed pick-and-place machines, reflow ovens, SPI, AOI, and 3D X-Ray inspection systems. Our SMT Factory is equipped to handle SMT In Manufacturing processes compliant with IPC-A-610 Class 2 and Class 3 standards, RoHS, and ISO 9001:2015.

Getting a quote for our SMT Assembly Service is simple:

  1. Prepare your Gerber files and BOM (bill of materials)

  2. Submit your files through our online quote request form

  3. Our engineering team reviews your design and performs a free DFM check

  4. You receive a detailed quote within 12-24 hours

We offer competitive pricing for both SMT Prototype Board and high-volume SMT Production. Contact our SMT Factory today to start your project.

Our Certificates

ISO45001 Certificate - Shenzhen Tengxinjie Electronics Co, Ltd.

Certificates

Testimonials

All the pcbs looks good, i run some test and all working perfect! The soldering quality is good as well, i might place another order very soon.

Jay D Caruso
Jay D Caruso

My second collaboration with this supplier, i had to do few update with my design but they were always very helpfull and friendly and i& # 39;m satsified with the result, i recommand.

Roger Caldwell
Roger Caldwell

Excellent seller, excellent service, very prepared and professional team, the pcbs arrived and are working perfectly. Delivery: good quality: high quality design: as agreed. Service: best service.

Hank M
Hank M.

I had to change my gerber files three times but Yuki is still friendly and helpfull, the pcb looks exactly what i " Ve ordered, very satisfied with the final result.

Ruben Montelongo
Ruben Montelongo

The seller was patient and professional.pcb design is in line with my requirements, the quality is also very good.

Joey Reyes
Joey Reyes

Service is very comprehensive, cooperation many times, pcb production and assembly quality is very good.

Eduardo Marina
Eduardo Marina
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