MERO GROUP CO.，LTD

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Zhiheng Xingsheng

PCB Assembly

Introduce

Zhiheng Xingsheng offers one-stop, full and partial turnkey PCB assembly services to meet all customer’s requirements and save time. Our quality-driven PCB assembly process ensures that your finished project is of the highest quality.

In full turnkey PCBA, we handle everything, including making circuit boards, ordering components, online order tracking, quality inspection and final assembly.

In partial turnkey PCBA, customers are responsible for supplying us the certain components, a partial list of parts, and the remaining parts. You can order the PCBs and partial components. We will fix the remaining parts, and manufacturing and assembly will be handled by us.

PCB Assembly Process

One of the most important factors in the overall efficiency of each PCB assembly project is the client’s understanding of our process. The number of steps involved in the PCB assembly process depends upon the specific nature of the project in question, as illustrated below, and each of these steps is explained briefly in the following sections.

DFM Check

DFM checks our client’s PCB design and looks for issues that may influence the final product negatively, such including missing, redundant or potentially problematic features. And the consistency across different design documents like BoM and Gerbers.

DFM Check

DFM checks our client’s PCB design and looks for issues that may influence the final product negatively, such including missing, redundant or potentially problematic features. And the consistency across different design documents like BoM and Gerbers.

IQC

Inspect all incoming materials and handle quality problems before the SMT assembly process. Bester IQC and procurement team will check for model numbers, shape, sample test, etc to ensure all parts used are of the highest quality.

IQC

Inspect all incoming materials and handle quality problems before the SMT assembly process. Bester IQC and procurement team will check for model numbers, shape, sample test, etc to ensure all parts used are of the highest quality.

Solder paste printing

Solder paste printing is the actual first step in PCB assembly manufacturing process that can apply solder paste to the appropriate, necessary areas on the PCB using stencil and squeegees.

Solder paste printing

Solder paste printing is the actual first step in PCB assembly manufacturing process that can apply solder paste to the appropriate, necessary areas on the PCB using stencil and squeegees.

SMD Components assembly

Pick and Place SMD components to the programmed location at high speed using automated Pick&Place machines after solder paste is correctly applied to bare PCBs.

SMD Components assembly

Pick and Place SMD components to the programmed location at high speed using automated Pick&Place machines after solder paste is correctly applied to bare PCBs.

Reflow Soldering

After SMD components are placed on the boards, they are sent through reflow machines to have the solder paste to reflow, attach components and create permanent solder joints.

Reflow Soldering

After SMD components are placed on the boards, they are sent through reflow machines to have the solder paste to reflow, attach components and create permanent solder joints.

THT Components Assembly

Pick and Place THT components to the programmed location at high speed using automated Pick&Place machines for the wave soldering process.

THT Components Assembly

Pick and Place THT components to the programmed location at high speed using automated Pick&Place machines for the wave soldering process.

wave soldering

Wave soldering is a method of PCB Assembly that involves sending boards on a conveyor through a wave of molten solder that is used to attach through-hole components to the boards.

wave soldering

Wave soldering is a method of PCB Assembly that involves sending boards on a conveyor through a wave of molten solder that is used to attach through-hole components to the boards.

AOI & X-ray

Inspect and verify that no mistakes have been made and that all parts have been correctly placed using automated optical inspection(AOI) and X-Ray technology and machines.

AOI & X-ray

Inspect and verify that no mistakes have been made and that all parts have been correctly placed using automated optical inspection(AOI) and X-Ray technology and machines.

Final inspection & repairing

The final inspections include visual inspection by our quality assurance team and post AOI inspection for flaws and functions. It’s also known as functional test.

Final inspection & repairing

The final inspections include visual inspection by our quality assurance team and post AOI inspection for flaws and functions. It’s also known as functional test.

QC / packaging

All assembled boards are packaged per clients’ request in anti-static packaging and be prepared for shipping under our QC team.

QC / packaging

All assembled boards are packaged per clients’ request in anti-static packaging and be prepared for shipping under our QC team.

PCB Assembly Capabilities

Our extensive capabilities in printed circuit board assembly offer our customers a convenient “One Stop Solution” for all their manufacturing and assembly needs.

We offer a diverse range of options for printed circuit board manufacturing, including Surface Mount Technology (SMT), Manual Insertion (MI), and Auto-Insertion (AI). We are also equipped to meet RoHS/Lead-free requirements. Our flexibility extends to component formats, supporting Reel, Cut-tapes, and Tray formats to cater to our customers’ specific needs.

For more information on our high-quality PCB assembly capabilities and to initiate a quote promptly, please navigate through our website.

SMT Capacity:

10M Ponits/Day

Inspection equipment:

SPI machine, 2D AOI machine, 3D AOI Machine, X-RAY Machine，ICT machine BGA Rework Table, FAI Machine

Place Speed:

CHIP component 0.036 S/pc

Place Component Size:

01005～ L 100 mm × W 90 mm × T 25 mm *7

<±40 µm, Under the Condition of 3σ，CPK≥1

±40μm/IC、±35μm/QFP ≧ 24 mm、±50μm/QFP <24 mm（Cpk ≧1）

PCB Size:

50 mm×50 mm ～810 mm×490 mm

PCB Thickness:

<0.5mm～4.5mm (Hard PCB) and Flex PCB

Wave soldering:

Non-Pb Width≤610mm

DIP Insert

30000 Pnts/Day

DIP Manual soldering point after WS：

10000 Points/Day.

Component Procurement

We appreciate the strength of our purchasing power and are pleased to offer you our global sourcing services, ensuring your order receives priority during production and providing you with the most favorable terms.

* Listed below are a few of our trusted local partners.

Why Us

Strong Assembly Capacities

With state-of-the-art facilities and a highly skilled team, we have the capacity to handle even the most complex PCB assembly projects, ensuring your products are manufactured efficiently and accurately.

Fast Turnaround

Our commitment to fast turnaround times means that your PCB assembly projects will be completed on schedule, allowing you to meet your production deadlines and get your products to market quickly.

One-stop Service

From PCB fabrication and design to component sourcing and IC programming, Bester offers a comprehensive range of services under one roof, streamlining the production process and saving you time and effort.

Quality Assurance

Our rigorous quality control processes and extensive testing procedures guarantee that every PCB assembly we produce meets the highest industry standards for reliability and performance, giving you peace of mind and confidence in our services.

Clients and Certifications

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