High-quality FR4 PCB manufacturing from prototype to mass production. SQPCB provides multilayer FR4 PCB, high Tg FR4 PCB, impedance-controlled PCB, and customized circuit board solutions for industrial, automotive, communication, and electronic applications.
FR4 PCB is the most widely used printed circuit board solution in the electronics industry because it provides an excellent balance between electrical performance, mechanical strength, thermal stability, and manufacturing cost.
As an experienced PCB manufacturer, SQPCB provides customized FR4 PCB manufacturing services from prototypes to volume production.
Our FR4 PCB capabilities include:
With advanced manufacturing equipment and engineering support, SQPCB helps customers achieve reliable PCB performance while optimizing cost and manufacturability.
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FR4 PCB[/caption]
| Item | Capability |
|---|---|
| Layer Count | 1–20 layers |
| PCB Material | Standard FR4, High Tg FR4, Halogen-Free FR4 |
| Board Thickness | 0.4mm–3.5mm |
| Copper Thickness | 1oz–6oz |
| Surface Finish | HASL, Lead-Free HASL, ENIG, OSP, Hard Gold |
| PCB Technology | HDI, Impedance Control, Via Plugging, Fine Line |
| Testing | AOI, Flying Probe Test, Electrical Test |
| Production Type | Prototype, Small Batch, Mass Production |
FR4 PCB uses fiberglass reinforced epoxy laminate as the base material.
The name FR4 comes from the flame-retardant grade defined by the material standard.
FR4 materials provide:
Because of these advantages, FR4 has become the standard PCB material for most electronic products.
Compared with advanced PCB materials such as PTFE, ceramic PCB, or metal core PCB, FR4 provides a more economical solution for general electronic applications.
It offers a practical balance between:
This makes FR4 the preferred material for a wide range of industries.
FR4 materials are widely used for multilayer PCB manufacturing.
Applications include:
Multilayer FR4 PCB structures allow engineers to achieve:
Standard FR4 PCB materials can meet the requirements of many electronic products.
For higher temperature applications, high Tg FR4 materials provide improved thermal performance.
High Tg FR4 is commonly selected for:
FR4 PCB supports many manufacturing technologies, including:
This flexibility makes FR4 suitable for both simple and complex PCB applications.
Standard FR4 is suitable for most general electronic applications requiring reliable performance and cost efficiency.
Typical applications:
High Tg FR4 provides improved thermal resistance compared with standard FR4.
It is recommended for applications requiring:
Typical applications:
Halogen-free FR4 materials are used when environmental requirements and material compliance are important.
Common applications:
FR4 PCB is widely used in:
High reliability FR4 PCB solutions are used in:
FR4 PCB is commonly found in:
FR4 PCB supports:
A reliable FR4 PCB requires strict manufacturing control throughout the production process.
The main processes include:
Copper patterns are created using advanced imaging technology.
Multiple layers are bonded together under controlled temperature and pressure.
Precision CNC drilling creates electrical connections between layers.
Copper plating ensures reliable electrical connection through vias.
Protective solder mask and surface finishing processes improve PCB reliability and assembly performance.
AOI inspection and electrical testing ensure product quality before shipment.
more PCB Manufacturing Process you can see here
SQPCB has more than 25 years of PCB industry experience, providing practical manufacturing knowledge and engineering support.
Our production capability includes:
We support:
Our engineering team helps customers optimize:
A well-designed PCB is not only functional, but also manufacturable and reliable.
When selecting an FR4 PCB manufacturer, consider:
Confirm whether the supplier can support:
Important factors include:
A professional PCB supplier should provide support during:
FR4 PCB is a circuit board manufactured using fiberglass reinforced epoxy laminate. It is widely used because of its balanced electrical, mechanical, thermal, and cost performance.
FR4 PCB can be manufactured from simple single-sided boards to complex multilayer designs. SQPCB supports FR4 PCB manufacturing up to 20 layers.
Yes. High Tg FR4 materials are commonly used in automotive and industrial applications requiring improved thermal reliability.
High Tg FR4 provides better resistance to higher temperatures and improved reliability under thermal stress conditions.
Yes. SQPCB provides customized FR4 PCB solutions from prototype development to mass production.
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