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Flex PCB Manufacturer 4

As a leading China flex PCB supplier, we specialize in high-quality flex circuit manufacturing—from rapid-turn prototyping to full-volume flexible PCB fabrication. Upload your Gerber files now for a fast, reliable quote.

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What Is PCB Prototyping?

PCB prototyping involves quickly producing a small batch of boards from design files before mass production for functional validation, performance testing, and process evaluation. These prototypes let engineers rapidly spot design flaws and optimize layouts, ensuring flawless large‑scale manufacturing.

Why Choose Our PCB Prototype Fabrication Service?

  • Standard lead time of 5–7 business days; 3‑day expedited delivery for urgent R&D needs.

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Process & Workflow

Step 1

Design Submission

  • Upload Gerber/CAD Files
  • Supports Gerber 274X, ODB++, and IPC-2581 formats
  • Files auto-archived with a unique project ID

Step 2

Technical Review

  • Manual Assessment Within 2 Hours
  • Key checks: minimum line width/spacing, hole diameter, solder-mask openings, and mask clearance
  • Optimization suggestions issued and confirmed via email or phone

 

Step 3

Prototyping & Fabrication

  • Fully automated CNC drilling and high‑precision copper lamination.
  • Single-/double-sided, multilayer, flex, and HDI boards
  • Temperature regulation and thorough cleaning prevent contamination and ensure flat, even surfaces

More About PCBMay

Here you can review our capabilities, watch related videos, and view factory images.
Technical Parameter Capability Range
Layer Count 4 – 40 Layers
Maximum Board Size Standard: 500*600mm (19”*23”), Advanced: 1100*500mm (43”*19”)
Base Materials High-Tg FR4, Rogers, Polyimide, Megtron, Taconic, Arlon
Via Technology Blind/Buried Vias, Microvias, Via-in-Pad, Back-drilling
Impedance Control Tolerance ±5ohm(＜50ohm), ±10%(≥50ohm)
Layer-to-Layer Misregistration 4 Layers

Standard: 0.15mm (6mil) max, Advanced: 0.10mm (4mil) max

6 Layers

Standard: 0.20mm (8mil) max, Advanced: 0.13mm (5mil) max

8 Layers

Standard: 0.25mm (10mil) max, Advanced: 0.15mm (6mil) max
Clearance Hole Edge to Inner Pattern

Standard: 0.225mm (9mil), Advanced: 0.15mm (6mil)

Outline to Inner Pattern

Standard: 0.38mm (15mil), Advanced: 0.225mm (9mil)
Minimum Board Thickness 4 Layers

Standard: 0.30mm (12mil), Advanced: 0.20mm (8mil)

6 Layers

Standard: 0.60mm (24mil), Advanced: 0.50mm (20mil)

8 Layers

Standard: 1.00mm (40mil), Advanced: 0.75mm (30mil)
Thickness Tolerance 4 Layers

Standard: ±0.13mm (5mil), Advanced: ±0.10mm (4mil)

6 Layers

Standard: ±0.15mm (6mil), Advanced: ±0.13mm (5mil)

8 to 12 Layers

Standard: ±0.20mm (8mil), Advanced: ±0.15mm (6mil)
Surface Finishes ENIG, ENEPIG, Immersion Gold/Silver/Tin, OSP, Hard Gold
Solder Mask Green, Black, Blue, Red, White, Yellow, Purple, Matte/Glossy

Why is JLCPCB the Go-To Flexible PCB Manufacturer?

Flexible Material Choices

From ultra-thin 25μm substrates to tear-resistant 50μm, transparent PET (85% transmittance), and advanced 4-layer stackups, JLCPCB covers every design need.

Precision You Can Trust

With LDI exposure and dry film, JLCPCB delivers 2/2mil traces without pad deviation. Laser cutting enables virtually any shape with ±0.05mm tolerance.

Reliable Quality & Durability

Using adhesive-free substrates and offering multiple stiffener options, JLCPCB ensures excellent bending performance and long-lasting stability.

Cost-Effective & Fast

Affordable factory-direct pricing combined with dependable 4-5 day lead times, giving you the best balance of cost, speed, and reliability.

Manufacturing Process

01. Material Preparation

Select high-performance polyimide and FR4 laminates based on layer stackup and design.

02. Inner Layer Imaging & Etching

Create fine copper traces using photolithography and precision chemical etching.

03. Lamination of Rigid and Flex Layers

Bond rigid and flexible layers into a unified structure using heat, pressure, and alignment control.

04. Drilling & Copper Plating

Drill microvias and through-holes, then plate with copper to form reliable interlayer connections.

Medical PCB Assembly Cases

Laser Therapy Control Board

A precision circuit board for non-invasive medical laser equipment, used in dermatology, rehabilitation, and aesthetic treatments.
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Ultrasound Therapy Control Board

A control PCB for medical ultrasound systems used in rehab centers, physiotherapy clinics, and home devices. It generates high-frequency signals, adjusts parameters, and ensures precise energy delivery.
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Ventilator

A critical PCB in ventilators and respiratory systems for ICU, emergency, and home care. It controls airflow, monitors pressure and volume, and integrates with alarms and sensors for safety.
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FAQs

Prototype PCB Assembly refers to the process of precisely assembling selected electronic components onto a customized printed circuit board (PCB) according to circuit design requirements, and producing a prototype of the circuit board that can be tested and functionally verified.
Prototype PCB Assembly is a crucial step in verifying the feasibility, functionality, and performance of circuit design, helping to identify potential design issues and optimize them, providing a reliable basis for subsequent mass production.
Usually includes PCB design and fabrication, component procurement and preparation, manual or automated assembly, testing and validation, as well as possible optimization and iteration steps.
Accurate assembly of components can be ensured through the use of precision welding tools, adherence to strict assembly processes and quality control standards, and the adoption of advanced automated assembly equipment.
Common testing methods include functional testing (to verify whether the circuit is working as expected), performance testing (such as detecting parameters such as voltage, current, and signal integrity), and reliability testing (such as stability testing in high temperature, low temperature, humidity, and other environments).
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