PCB assembly experience rich
Double-sided, mixed surface mount/through-hole PCB assembly, reflow, wave/selective wave soldering, 01005 (0402) size parts, 0.25mm pitch BGAs and fine-pitch parts and more.
Complete pcb assembly one week
Get boards assembled from 24 hours once all parts are available and choose from over 600k local stock for extra fast turnaround.
Transparent and favorable prices
We have fixed raw material partners, the price is fair and transparent, we have the industry’s most affordable pcb assembly price.
Free Design for Assembly Review
Get an expert second opinion with the DFA review and ensure your entire PCB production runs smoothly from start to finish.
One-stop PCB assembly services
PCB assembly is the process of producing printing circuit boards. This is a manufacturing technology that converts raw materials into electronic products PCB motherboards. It is used in many industries, including military and aerospace fields. This type of manufacturing requires skilled professionals to lay out the design and then assemble.
When you choose us as your partner PCB assembly service provider, you have chosen the best PCBA service partner. Our PCB assembly services meet the highest quality standards. Our SMT factory has passed ISO9001, TS16949, UL, and ROHS certification. With more than 10 years of experience in the industry and more than 99% customer satisfaction, we have obtained enough high PCB assembly capacity to provide high-quality assembly services under strict quality standards and regulations. We can handle any type of PCB, whether it’s double-sided or single-sided assembly, SMT, through-hole assembly, or mixed assembly items. No matter what you want to do, we can achieve it!
PCB assembly is one of our main businesses. We can assemble high -quality printing circuit boards for competitive prices and flexible conditions. We are a complete printing circuit board assembly “one -stop” resource, including SMT assembly, BGA assembly, through -hole assembly and welding assembly.
Product display
OUR SERVICE
pcb protype
Our has huge experiences in PCB Prototype and Manufacturing more than for 18 years. For provide the best service and competitive price to our customers, we have PCB Prototype manufacturer and PCB Manufacturer dedicated to each PCB fabrication, Here are the capabilities:
> Min.Trace/Space 3.5mil(3.5mil)
> Materials Fr-4, Aluminum, Rogers, Arlon, Polyamide
> Max. Dimension 500*600mm
> Thickness 0.6-2.5mm
> Dimension Tolerance ±0.2mm
> Min. hole size 0.2mm
> Outer Copper Weight 35um/70um/105um
SAT
Our offers quick turnkey SMTassembly service, which can meet your needs from prototype quantities as well as small-volume to big-volume production. We deal with the whole process including: Sourcing all the components, PCB manufacturing, PCB assembly, testing, and final shipment.
> Surface Mount (SMT) Assembly
> Mixed technology (SMT & Thru-hole)
> Through-Hole Assembly
> Reflow Soldering
> Wave Soldering
> Pick & Place Assembly
> SMT Solder Paste Printing
BGA
Our have huge experiences providing BGA assembly services in PCBA industry, with our profesional BGA placement equipment, smoothly BGA assembly processes, you can depent on us to build high-quality BGA boards.
> PBGA
> CBGA
> TBGA
> EBGA
> FC-BGA
> MBGA
> Micro BGA
DIP
Our provides DIP Assembly one-stop solution! All types of PCB manufacturing is one of our strength. Our could help you to find the designated component and provide PCBA (SMT or DIP) service.
Soldering
Our has extensive experience with soldering and offers its expertise to companies with prototype or production needs. Soldering assembly is accomplshed with our technologies, depending on the customers requirements and interests.
box buliding
Leadsintec will continue to supply its customers with Final Assembly capabilities for any size project. Whether you require a small housing or a rack mount assembly, Leadsintec can help you meet your customer’s needs.
Our Capabilities
| SMT Program | Process Capabilities |
| Layers | 1-42 layers |
| PCB Size | L*w:50*50–510mm*460mm |
| PCB Thickness | 0.3MM-4MM |
| PCB Material | Flex/Rigid/Composite/Aluminum Substrate |
| Component Size | 01005(Inch)–45mm*100mm |
| Component Pitch | IC minimum pitch 0.25mm/BGA minimum pitch 0.25mm |
| Component Height | Maximum 20mm |
| Patch Precision | chip:±0.03mm IC:±0.025mm |
| Maximum Daily Capacity | 9.07 million points/11 hours |
| Printing Machine | ZS-A5, ZS-ASE,GKG-G5, Printing accuracy:±0.025MM |
| Mounter | JUKI:±0.035MM YAMAHA: ±0.025MM |
| AOI | VCTA-D810, VCTA-D850 Online Dual Rail AOI |
| SPI | VCTA-V850E,3D-SPI In-Line 3D SPI |
| X-ray Inspection | UNICOMP– AX8200 tester for BGA type chips |
| First Article Tester | Model: HX-FAI-300 high-precision first piece detector |
How to assemble PCB
Step 1: Make templates and apply welded paste
In the professional PCB installation, the mechanical fixture fix PCB and welded templates at appropriate positions. Then use a brush to place the tin paste at the expected area with accurate amount. Then, the machine spreads the paste on the template and brushes it evenly to each open area. After removing the template, the welding paste is retained in the expected position.
Step 2: Take the element
After brushing the welded paste on the PCB board, the assembly process will be transferred to the picker (PCBA Store SMT machine: yamaha, Panosonic). Put the process. The robot then aligned the PCB on the workbench and began to apply SMT to the PCB surface. These components are placed on the pre -pre -programmed position on the top of the welded paste, which is called SMT.
Step 3: Backwing welding
After the welding balm and surface installation components are placed in place, they need to be kept there. This means that the welding paste needs to be curing and adheres to the component to the board. PCB assembly is achieved by the process of calling “backflow”.
After picking up and placing the process, the PCB board is transferred to the conveyor belt. The conveyor belt passed through a large return furnace, and the flow furnace was a bit like a commercial pizza furnace. The oven consists of a series of heater, which gradually heated the board to the temperature of about 250 degrees Celsius or 480 Hualhi. Its temperature is enough to melt the solder in the tinnum.
After welded, the PCB continued to pass through the oven. It cools and solidifies the melting welded through a series of cooler heater. This will create a permanent solder to connect SMD to PCB.
Step 4: inspection and quality control
Once the surface paste component is welded after the return process, the function of the circuit board can be tested. Generally, the movement during the return process will lead to poor or lost connection. Short circuit is also a common side effect of this movement, because components in the wrong position sometimes connect to parts that should not be connected in the circuit.
Inspection method includes: manual examination
Automatic optical test (called AOI)
X -ray inspection (most commonly used for more complex or layered PCB.)
Step 5: PCB test
The most important aspect of PCB assembly is testability. The PCB assembly process is seriously dependent on our test level. In the final stage of the assembly process, we will create a test board. The test board allows us to test our electronic components and verify whether they work normally. For example, if we use a microcontroller, we can test whether the micro -controller is correctly received instructions from the computer. We can also use oscilloscope and other tools to test our functions.
Step 6: Tongkou component insertion (THT)-usually manual operation
According to the type of circuit board in the assembly, the circuit board may include various components other than ordinary SMD. These include plating hole components or PTH components. This requires artificial manual plug -in to complete.
Step 7: Final inspection and functional test
After completing the welding steps of the PCB assembly process, the final inspection will test the function of the PCB.
If you have any questions, please contact（ sales@leadsintec.com） for more information.If you provide us with The Bom and the GBR, we can quote you directly.
Get a free quote，Please give me your requirements
CONTACT INFO
: 4/F,5/F,6/F Xingyuan Technology Park, Gushu Tongda Road, Xixiang Town Baoan District, Shenzhen , Guangdong, China 518102
: Area A3, Phung Nenh Truce Industrial Zone(Nam Giang Industrial Park), Viet An City, Bac Giang Province, Vietnam
: +86-15817390087
: +86-755-23108895
: +86-755-29129721
: Victor Zhang
:sales@leadsintec.com
LATEST PRODUCTS
BLOG
FOLLOW US
