Why FR4 PCB Board

Reliable performance for mainstream electronics

FR4 PCB Board is the default choice for most electronic products because it balances mechanical strength, electrical insulation, and cost efficiency—ideal for consumer devices, industrial controls, power supplies, communication products, and more.

Green solder mask = better yield & inspection

Green solder mask offers strong contrast for AOI/visual inspection and is widely standardized across supply chains—helping reduce assembly risk and improving consistency.

Scalable from prototype to volume

Start with quick prototypes, then scale to stable volume runs with consistent materials, controlled processes, and traceable QC records.

Key Capabilities

Final specs depend on your design rules and stack-up. Typical options:

• Base material: FR4 (standard) / High-TG FR4 available
• Layer count: 1–12+ layers (commonly 2 / 4 / 6 layers)
• Board thickness: custom (common: 0.8 / 1.0 / 1.6 mm)
• Copper weight: 0.5–2 oz (inner/outer per stackup)
• Solder mask: Green (other colors available on request)
• Silkscreen: White (standard)
• Surface finish: HASL / Lead-Free HASL / ENIG / OSP (per requirement)
• Holes & vias: PTH, via-in-pad (if needed), microvia options depending on design
• Impedance: Controlled impedance available (provide target & stackup)
• Standards: IPC-class build available per requirement

CTA line: Share your application + operating temperature + impedance needs—we’ll recommend FR4 grade (standard vs high-TG) and finishing.

What You Get From Benchuang

1) Engineering review

Before production, we check:

• annular ring / drill sizing
• solder mask clearance
• trace/space limits
• impedance feasibility
• panelization suggestions
  This reduces rework and shortens time-to-assembly.

2) Material choices matched to heat & reliability

If your assembly involves higher reflow stress, thicker copper, or higher operating temperature, we can offer high-TG FR4 options to reduce warpage and improve thermal stability.

3) Stable manufacturing for assembly success

We focus on what EMS factories care about:

• solderability & finish consistency
• hole wall quality & plating reliability
• mask alignment and clean legend
• controlled thickness & flatness management where required

Typical Applications

• Consumer electronics & smart devices
• Industrial control & automation modules
• Power supply / adapters / inverters (design dependent)
• Communication equipment & embedded systems
• Test fixtures and engineering prototypes

Customization Options

We support:

• 4-layer / multilayer stackups (signal + power + ground planning)
• High-TG FR4 for tougher thermal cycles
• ENIG finish for fine-pitch / BGA / better shelf life
• Controlled impedance for high-speed interfaces (provide targets)
• Special requirements: edge plating, castellated holes, gold fingers, etc. (on request)

Quality Control & Documentation

Available based on your project:

• AOI inspection
• Electrical test (flying probe / fixture, per lot & volume)
• Solderability control for chosen finish
• Material & process traceability (as requested)
• Export packaging and labeling suitable for EMS lines

What We Need to Quote Fast (RFQ Checklist)

Copy/paste this into your inquiry:

1. Gerber files + drill file
2. Layer count & stackup (or target thickness)
3. Quantity (prototype and annual volume if known)
4. Material: standard FR4 or high-TG requirement
5. Copper weight (outer/inner)
6. Surface finish (ENIG/HASL/OSP)
7. Solder mask color (green default)
8. Impedance targets (if any)
9. Special requirements (V-cut, panel, gold fingers, etc.)
10. Delivery country & required lead time

CTA: Send the details—Benchuang will reply with price, lead time, and DFM notes.

FAQ

How fast can you quote? If Gerber + key specs are complete, quoting is typically fast.

Do you support prototypes and mass production? Yes—prototype builds and scalable volume manufacturing.

Can you do high-TG FR4? Yes—recommendation depends on thermal profile and reliability needs.

What surface finish should I choose? ENIG for fine-pitch/BGA and shelf life; HASL for cost; OSP for certain assembly flows.

Can you support controlled impedance? Yes—provide targets and stackup constraints.

Do you offer 4-layer FR4 PCBs? Yes—4-layer is common; we can optimize stackup for SI/PI.

What files do you need? Gerber + drill (and IPC-2581 if you use it).

Can you panelize boards? Yes—V-cut/routing options depending on design.

Do you provide electrical testing? Yes—test method depends on volume and fixture availability.

Can you meet IPC class requirements? Available—tell us the target class and application.