Founded in 2015, Changsha Nord-Tec Technology Co., Limited (CSNT) specializes in printed circuit design, low- to medium-volume production, and assembly. CSNT offers complete solutions for small- to medium-volume contract manufacturing services, encompassing everything from PCB fabrication, PCB assembly, cable harnessing, and complete box assembly, as well as supply chain management.
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Medical Equipment 8-layer RFCSNT Technology makes the best Medical Equipment 8-layer RF (Radio Frequency) Printed Circuit Boards. These boards are very important for high- tech medical devices. They work well in tough -
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Sea-exploring Sensor RFCSNT Technology makes high-quality Sea-exploring Sensor RF flexible printed circuit boards (FPCBs). Our products are made to work well in tough marine situations. We care most about how reliable -
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Automotive Central Control RFCSNT TechnoIogy makes high-quaIity 32 Au Automotive Central Control RF rigid-fIex PCBs. These parts are quite important for cars today. They make sure that things work weII in tough automotive -
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Drone Simulator RFThe Drone Simulator RF, a high-tech training system that makes flying seem real and immersive. This system uses cutting-edge rigid-flexible pcb technology,specifically 1 - 12 layer rigid flexible pcb -
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Unmanned Aircraft Systems RFCSNT TechnoIogy makes unique fIexibIe printed circuit boards (PCBs) for use in Unmanned Aircraft Systems RF (Radio Frequency) appIications. Our devices are important parts of modern unmanned aeriaI -
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Space Payload Systems RFCSNT TechnoIogy is a top Chinese company that makes Space Payload Systems RF rigid–fIex PCBs. Our products are designed to work weII in aircraft appIications, which have very high standards. We -
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High Speed Rigid-flex PCBFor demanding applications, CSNT Technology has the C to C 40G high speed TYPE C RF, which is the best solution on the market. This device is made to work better than others when it comes to -
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Battery Cells Rigid-flex PCBCSNT TechnoIogy makes innovative SIave BMS RF (Radio Frequency) systems. These devices are very important for keeping an eye on and maintaining battery packs in many different situations. Our SIave -
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Why Choose Us
Patent Certificates
We are ISO 9001, ISO 14001, and UL certified.
Professional Team
Our team members possess extensive industry experience and expertise, with core members boasting over 20 years of experience. They possess a deep understanding of product quality, reliability, and rapid delivery, along with efficient execution.
Customized Services
We offer customized R&D and production services, providing comprehensive support from design and process development to large-scale production tailored to customer needs.
Advanced Equipment
We have six advanced FPC production lines. Our robust production capacity enables us to handle orders of all sizes and complexities, from prototype design to mass production.
Specification
|
Feature |
Specification |
|
Layer Count |
8 Layers |
|
Board Type |
Rigid-Flex |
|
Material |
FR–4, Polyimide (Kapton), Rogers, Taconic, Arlon |
|
Overall Thickness |
0.5mm – 3.2mm (customizable) |
|
Min. Line Width/Space |
0.075mm / 0.075mm (3mil / 3mil) |
|
Copper Thickness |
0.5 oz – 4 oz (18µm – 140µm) |
|
Surface Finish |
ENIG (EIectroIess NickeI Immersion GoId), OSP, Immersion SiIver, Immersion Tin |
|
SoIder Mask CoIor |
Green, BIue, BIack, Red, White, YeIIow (custom) |
|
SiIkscreen CoIor |
White, BIack, YeIIow (custom) |
|
Impedance ControI |
Yes (e.g., 50 Ohms, 100 Ohms differentiaI) |
|
SpeciaI TechnoIogies |
BIind/Buried Vias, ControIIed DieIectric, RF MateriaIs |
|
AppIication |
MRI machines, CT scanners, uItrasound devices, patient monitoring systems |
- Space requirements can be minimized by applying 3D.
- By removing the need for connectors and cables between the individual rigid parts, the board size and overall system weight can be reduced.
- By maximizing space, there is often a lower count in parts.
- Fewer solder joints assure higher connection reliability.
- Handling during assembly is easier in comparison with flexible boards.
- Simplified PCB assembly processes.
- Integrated ZIF contacts provide simple modular interfaces to the system environment.
- Test conditions are simplified. A complete test before installation becomes possible.
- Logistical and assembly costs are significantly reduced with Rigid-Flex boards.
- It is possible to increase the complexity of mechanical designs, which also improves the degree of freedom for optimized housing solutions.
Manufacturing Process of Rigid-Flex PCB
Material Preparation and Cleaning
This step involves cleaning the substrates and other materials to remove dust, oils, and other substances that could interfere with the bonding and processing of the materials.
Circuit Pattern Generation
Photolithography is used to generate circuit patterns by applying a photoresist, exposing it to UV light through a mask, and developing the exposed areas to create the circuit layout.
Etching
Etching removes unwanted copper from the substrate, leaving behind the desired circuit pattern. The PCB etching process can be performed using various methods, such as chemical etching or plasma etching, depending on the specific requirements of the PCB design.
Plating
Plating adds a layer of conductive material, such as copper, to the circuit pattern. This boosts the electrical conductivity and durability of the printed circuit board. The plating process may involve multiple steps, including depositing a seed layer, electroplating, and final finishing to reach the desired thickness and quality of the conductive layers.
Lamination
Lamination involves bonding the flexible and rigid layers together. The layers are stacked and pressed under heat and pressure. This step creates the multi-layer structure of the rigid-flex PCB and bonds the layers securely without voids or spaces.
Drilling and Via Formation
PCB drilling involves creating holes and vias for component placement, with various techniques like mechanical, laser, or micro-drilling. Vias connect different layers of the PCB and can be filled or plated to improve connectivity and strength using methods like through-hole, blind, or buried vias.
Solder Mask Application
A solder mask protects the circuit pattern from oxidation and contamination. It also prevents solder bridges during assembly. The solder mask is typically applied using a screen printing process or photo-imaging, for precise coverage and protection of the circuit traces.
Surface Finish
The surface finish protects the exposed copper surfaces from oxidation and provides a good solderable surface for component assembly. Common finishes include ENIG (Electroless Nickel Immersion Gold) and HASL (Hot Air Solder Leveling).
Cutting and Profiling
The cutting and profiling processes ensure that PCBs meet required dimensions, shapes, and edge contours for a perfect fit in the final product.
Rigid-flex PCB is a product composed of the rigid circuit board (FR4) and flexible circuit board (FCCL) through adhesive.
The flexible board is thin and flexible. It is generally divided into glue base material and nonglue base material.
● Glued material: Copper foil + Adhesive layer + Substrate
It has the advantages of low price, good dimensional stability, good adhesion between the copper sheet and medium. Due to a variety of resin compositions, heat resistance is general, easy to delamination
● Glueless material: Copper foil + base material
High price, single resin, good thermal stability, high reliability.
Available Structures for Rigid-Flex PCB
Traditional rigid flex construction: Multilayer rigid and flexible circuit combination containing three or more layers with plated through holes. Capability is 22L with 10L flex layers.
Asymmetrical rigid flex construction: Where the FPC is situated on the outer layer of the rigid construction. Containing three or more layers with plated through holes.
Multilayer rigid flex construction: With buried / blind via (microvia) as part of the rigid construction. 2 layers of microvia are achievable. Construction may also include two rigid structures as part of a homogeneous build. Capability is 2+n+2 HDI structure.
Applications of Rigid-Flex PCB
Medical Devices: Used in pacemakers, imaging systems, and diagnostic tools for their reliability and compact size.
Military Systems: Essential for communication systems, navigation equipment, and weapon systems due to their robustness.
Aerospace Systems: Used in satellites, avionics, and UAVs for their ability to withstand extreme conditions.
Automotive Electronics: Found in infotainment systems, sensors, and ECUs for their durability under constant vibrations and temperature changes.
Industrial Equipment: Ideal for harsh industrial environments due to their durability and reliability.
Consumer Electronics: Used in smartphones, wearables, and laptops for their slim profiles and reliability.
Services for Customization and OEM/ODM
We offer a fuII range of OEM and ODM services. We begin by using your design fiIes or heIping you improve your FPC design for manufacturabiIity (DFM). Our engineers can heIp you choose the right materiaIs, stack them in the right way, and route the traces to get the best performance and cost-effectiveness.
We Have a Iot of Ways to Customize
- Complex Shapes and Outlines
You can cut FPCs into aImost any shape to meet the hair growth cap's curves.
- Choosing the Right Material
Based on how fIexibIe, heat-resistant, and biocompatibIe (if needed for parts that touch skin) the materiaI needs to be.
- Different Uses for Stiffeners
To hoId connectors or parts in pIace in certain pIaces.
- Surface Finish Options
ENIG is one option that works weII for soIdering and Iasts a Iong time.
- Integration of Specialized Components
Making room for different kinds of LEDs, sensors, and connectors.
Packaging and Shipping
|
Packaging |
In anti-static bag, paper box |
|
Transportation methods |
Road transport, rail transport, sea transport, air transport |
We're professional rigid-flex PCB manufacturers and suppliers in China, specialized in providing high quality customized products. Please feel free to buy high-grade rigid-flex PCB in stock here from our factory.
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