We actively grasp the market trend and realize the strategic layout of the whole Automotive PCB Service Assembly, Oem Smart Electronics Printed Circuit Board, Doubled-sides Rigid-flex PCB industry chain. Continuous product improvement in terms of quality and technology is the only way we can compete aggressively in the marketplace. We are developing new strategies to make sure our company can keep up with the times and meet the principles of corporate social responsibility.

Product Detail

Quick Details

Model Number: Customize

Place of Origin: Shenzhen, China

Base Material: FR-4/aluminum/ceramic/cem-3/FR-1

Copper Thickness: 1/2OZ 1OZ 2OZ 3OZ

Board Thickness: 0.2-4mm

Min. Hole Size: 0.075mm/3mil

Min. Line Width: 0.1mm/4mil

Min. Line Spacing: 0.1mm/4mil

Surface Finishing: HASL

Certificate: ISO9001; TS16949

Other Service: PCB Design and layout

Solder mask color: Blue. green. red. black. white. etc

Layer: 1~24 Layers

Testing Service: AOI X-Ray Function Test

As an ISO9001 certificated electronics assembly manufacturer, adheres to a thorough quality and process control. The tests and inspections include physical and visual inspections, open & short tests, AOI inspections, X-ray inspection, and In-Circuit tests. We also make ageing testing both for mother board and finished product. These PCBA inspection process ensure customers final product meets their design specifications, and also control the whole production lot to high non-defective ratio which reduce the entire lead time.

Steps involved in the PCB assembly process

There are many steps involved in the PCBA and manufacturing process. To get the best quality final product, follow these steps:

Step 1: Add Solder Paste: This is the very initial stage of the assembly process. At this stage, solder paste is added to the component pads wherever soldering is required. Put the solder paste on the pads and stick it in the right place with the help of the solder screen. This screen is made from a PCB file with holes.

Step 2: Placing Components: With the solder paste added to the component pads, it's time to place the components. The PCB goes through a machine that precisely places these components on the pads. The tension provided by the solder paste holds the component in place.

Step 3: Reflow Oven: This step is used to permanently attach the components to the board. After the components are placed on the board, the PCB is passed through the reflow oven conveyor. The controlled heat of the oven melts the solder added in the first step, permanently connecting the components.

Step 4: Wave Soldering: In this step, the PCB is passed through a wave of molten solder. This will create an electrical connection between the solder, the PCB pads and the component leads.

Step 5: Cleaning: At this step, all the soldering process is completed. During the soldering process, a large amount of flux residue forms around the solder joint. As the name suggests, this step involves cleaning flux residues. Clean flux residue with deionized water and solvent. With this step, the PCB assembly is completed. Subsequent steps will ensure that the assembly is done correctly.

Step 6: Testing: At this stage, the PCB assembly is complete and inspections begin to test the placement of the components. This can be performed in two ways:

a. Manual: This inspection is usually done for smaller components, the number of components does not exceed one hundred.

b. Automatic: This check is performed to check for bad joints, wrong components, misplaced components, etc.

Product craft requirements:

1. Offset requirement: When the side is offset, the minimum connection width (C) shall not be less than 3/4 of the component weld end width (W) or pad width (P); calculated by the smaller of P and W.

2. Solder requirements: the minimum climbing tin height is greater than 1/3 of the castle.

3. component requirements: the minimum climbing tin height is greater than 1/3 of the castle.

4. Do not accept alternative materials.

5. PCB requirements: bare board shipment does not accept foaming or stratification.

6. PCBA requirements: anti-static full package

7. Cleaning requirements: special cleaning fluid, please note the water flow should be soft, not too fierce, carefully brush with a soft brush while brushing, both sides of the board should be operated with the same way.

As an experienced supplier, our company is the best choice for your ideal and cost-effective and high quality High Precision Microcomputer Double Pulse Spot Welder for Battery Welding. We will provide day and night service and constantly improve service. We uphold the faith of sincerity, carry forward the spirit of concentration, innovation and dedication, and realize the leap forward development. The company integrates advanced technology and experience at home and abroad, and is committed to developing more high-quality products.