Double Sided Flex
A double sided flex circuit is a circuit with two conductive layers, and there is a conductive layer on each side of the polyimide base layer in the circuit. Trace patterns can be created on both sides of the substrate film according to your needs, and can be connected to copper-plated through holes where needed. Electroplating through holes establishes an electrical connection between the two layers.
As a connecting device, compared with traditional wiring and rigid boards, the main advantages of flexible circuits include：
- Reduce wiring errors
- Eliminate mechanical connectors
- Unparalleled design flexibility
- Higher circuit density
- More stable operating temperature range
- Stronger signal quality
- Improved reliability and impedance control
- Reduced size and weight
Flexible printed circuits have many benefits, including：
Reduce assembly errors
With precise design and automated production, flexible circuits eliminate human error in handmade wiring harnesses. Except for production-caused errors, the circuit is only routed to those points required by the accurate design plan.
Reduce assembly time and cost
Flexible circuits require less manual labor and reduce production errors during the assembly process. Flexible circuits have the inherent ability to integrate form, assembly, and function. Flexible circuits eliminate the high cost of wiring, winding, and welding wires. Install or replace a complete interconnection system instead of a separate hard PC board. As a result, wiring errors are eliminated and manufacturing costs are reduced. Whether it is small scale production of complex circuits or large scale production of simple circuits, assembly time and cost will be reduced.
Design freedom
Unlike rigid boards, flexible circuits are not limited to two dimensions. Since they are as flexible as wires or ribbon cables, the options for flexible circuit design are endless. At flexible circuits, we are proud to be able to meet the most complex design challenges. The design of flexible circuits can meet highly complex and unimaginable configurations while being able to operate in the harshest environments. Flexible circuit design may require any of the following：
- Highly complex configuration
- Withstand harsh operating environments
- Single and double combination
- Complex interconnection
- Shield
- Rigidity/Flexibility
- Surface mount equipment
Flexibility during installation
Flexible circuits allow the use of a third dimension because they can be interconnected between two or more planes during execution. Therefore, they solve space and weight issues that rigid boards cannot match. Flexible circuits can be operated multiple times during installation and execution without electronic failure.
High density applications
Flexible circuits allow extremely narrow lines, giving way to high-density device clusters. Dense device counts and lighter conductors can be designed into products, freeing up space for other product features.
Improve airflow
Due to its streamlined design, flex circuits allow cooling air to flow through electronic applications.
Increase heat dissipation
Flexible circuits allow for shorter thermal paths due to their large surface area to volume ratio and compact design. Additionally, the thinner design of the flex circuit allows heat to dissipate from both sides of the circuit.
Improve system reliability
In the past, most circuit failures occurred at interconnection points. Flexible circuit designs can reduce interconnections, thereby increasing circuit reliability.
Point-to-point line replacement
Depending on the number of point-to-point connections in a circuit design, at Flexible Circuits, we guarantee that a single flex circuit can be designed and built to eliminate many, if not all, of these interconnections. At Flex Circuits, “We go where others don’t go.”
Reliability and durability
In designs with moving parts, flexible circuits can move and bend up to 500 million times without failure. Polyimide’s excellent thermal stability also enables circuits to withstand extremely hot applications. The thermal stability of polyimide provides a better foundation for surface mounting than rigid boards. Because a compliant base film places less stress on the solder joint, thermal mismatch is less likely to occur.
Repeatable route
Our circuits are made from accurate reproductions of artworks with superior manufacturing consistency. Etched circuitry replaces soldering and hand-wiring connections to rigid boards, eliminating wiring errors.
Simplified circuit geometry
Flex circuit technology places surface mount electronics directly on the circuit, simplifying the overall design. Complex patterns that are nearly impossible to achieve using rigid circuit boards can be easily achieved in flexible circuits.
Package size and weight reduction
Multiple systems on a rigid board create more weight and utilize more space. Flexible circuits contain the thinnest dielectric substrates. The thinness allows for a streamlined design, eliminating the need for bulky rigid panels. Elasticity and flexibility can reduce package size. In addition to reducing package size, reducing package weight is another benefit. As the demands of the electronics industry continue to increase, weight reduction allows flexible circuits to remain very competitive.
In summary, if you have flex circuit design or flex printed circuit board needs, we can help.
| Item | Speci. |
|---|---|
| Layers | 1~32 |
| Board thickness | 0.1mm-7.0mm |
| Material | FR-4, CEM-1/CEM-3,Pl, High Tg, Rogers |
| Max panel size | 32 x48"(800mmx1200mm) |
| Min hole size | 0.075mm |
| Min line width | 3mil(0.075mm) |
| Surface finish | OSP, HASL, Imm Gold/Nickel/Ag, Electric gold |
| Copper thickness | 0.5-7.0OZ |
| Soldermask | Green/Yellow/Black/White/Red/Blue |
| Silkscreen | Red/Yellow/Black/White |
| Min PAD | Red/Yellow/Black/White |
| Inter package | Vacuum |
| Outer package | Carton |
| Outline tolerance | +0.075mm |
| Hole tolerance | PTH: +0.05 NPTH: +0.025 |
| Certificate | ISO 9001, ISO14001, IATF16949 |
| Special request | Blind hole+Gold finger + BGA |
Get Free Drawing Design
Contact UsFlexible Printed Circuits FPC Advantages
FPC is a printed circuit made of flexible insulating substrate, with many advantages that rigid printed circuit boards do not have:can be free to bend, coil, and fold, according to the requirements of the spatial layout of any arrangement, and in three-dimensional space, arbitrary movement, and expansion, to achieve the integration of component assembly and wire connection; The use of FPC can greatly reduce the volume and weight of electronic products, applicable electronic products to high-density, miniaturization, and high reliability in the direction of development needs. Therefore, FPC in aerospace, military, mobile communications, laptop computers, computer peripherals, PDA, digital cameras, and other fields or products have been widely used; FPC also has good heat dissipation and solderability as well as easy to install and connect, has a lower overall cost, and has other advantages.
Online Instant Quote & DFM Analysis
Online Instant quote request email, and get instant Dome Array quotes by simply uploading your design files. We can customize metal domes of various sizes and shapes according to customer requirements. provides real-time & competitive pricing and comprehensive feedback.
Consistent High Quality
Advanced metal dome automatic assembly equipment multi-function testing equipment, and rigorous quality checks, combined with constant communication, ensure that every snap dome you receive meets the highest standards, consistently and reliably.
Fast and Reliable Delivery
Boasting robust manufacturing capacity, Shanyo’s ensures quick turnaround for tactile dome machined parts. Plus, with our varied dome array(snap dome switch) choices, you’ll get your order on time, without the usual hassles.
Professional Engineering Support
No matter where you are, you can get our 24/7 engineering support all year around. Our experienced engineer can provide you with the most appropriate solution for your metal dome customized design, material selection, surface finishing, and even lead time.
Comsumer
Fitness Wearables
Industrial
Medical
Aerospace
Military
Are you a Trading Company or Manufacturing?
- We are a Professional Metal dome manufacturer, we have our own factory, and we are based in Qingdao, China, Shanyo Precision Electronic Technology Co., Ltd. is a professional manufacturer of mobile phones and digital product components. It was established in 2004 and has more than 200 employees. The main business is applied in consumer electronics, remote controls, mobile phones, automobiles, medical care, smart products, outdoor products, etc. The main products are metal dome array, Remote control buttons, die cutting, LGF, UV bumps, FPC, panel buttons, PCB lines, thin film flexible lines, etc. The Qingdao factory covers an area of more than 3,500 square meters. Currently, it has offices in Shenzhen, Shanghai, Taiwan, Malaysia, and Singapore, fully implementing the global marketing strategy. sell to Southern Europe (10.00%), Domestic Market (10.00%), Northern Europe (10.00%), Central America (10.00%), Western Europe (10.00%), Eastern Europe (10.00%), South America (10.00%), North America (10.00%), South Asia (5.00%), Southeast Asia (5.00%), Eastern Asia (3.00%), Oceania (3.00%), Mid East (2.00%), Africa (2.00%). There are a total of about 51-100 people in our office.
How do I request samples of your products?
- Stock Samples: If you paid the freight cost, we could provide free samples for you.
- Customized Samples: We will offer you 5 pcs free samples after we receive the setup cost.
- To request product samples, please email us at shanyonod@shanyo.com.
How do I request a quote?
- You can easily request a quote by filling out our Quote Form, or by sending us an e-mail at shanyonod@shanyo.com.
How can we guarantee quality?
- We process and produce products in strict accordance with the list of raw materials.
- Many of our engineers have many years of experience and are very responsible.
Always a pre-production sample before mass production;
Always final Inspection before shipment.
And video confirmation of packing with the customer.
Can you offer OEM Service?
- Surely Okay, we have Seasoned OEM service experience.
What is the Lead time of the sample?
- It takes 2-7 working days depending.
How fast can I get the Quotation?
- 30 mins ~ 24 Hours depends.
How to place an order?
- Please tell us your material, artwork design, logic circuit schematic diagram, size, surface, usage, etc. It is best to send us the design drawings or samples and other detailed data, and then we will customize the metal dome and metal dome array according to your requirements.
What services can we provide?
- Accepted Delivery Terms: FOB, EXW；
Accepted Payment Currency: USD, EUR, HKD, CNY;
Accepted Payment Type: T/T, L/C, MoneyGram, PayPal, Western Union, Escrow;
Language Spoken: English, Chinese
What products are die-cut?
- The die-cutting process is suitable for a variety of materials, including metal, plastic, paper, fabric, foam, wood, and composites.
Advantages of metal dome technology:
- Durability: Metal domes are highly durable and can withstand millions of actuations without failure. This makes them ideal for use in devices that are used frequently, such as keyboards and keypads.
- Consistency: Metal domes provide a consistent tactile response, which means that users can rely on the same level of feedback every time they press a button. This can improve user experience and accuracy.
- Cost-effectiveness: Metal domes are relatively inexpensive to manufacture, which makes them a cost-effective solution for manufacturers.
Space-saving: Metal domes are small and can be placed close together, which makes them ideal for use in compact devices. - Customization: Metal domes can be customized with different shapes, sizes, and force requirements to suit the specific needs of a particular device or application. This allows manufacturers to create unique user experiences for their products.
Share innovation
Actively communicate with domestic and foreign counterparts, cooperate, share technological achievements, constantly develop more new products to enrich the product catalog of enterprises, and strive to develop with old and new customers and colleagues in the industry who patronize our company.
Professional
The company specializes in the research development and production of metal shrapnel/pot pan disc and conductive film of metal shrapnel. It has very rich experience and can provide different shrapnel solutions according to customers ‘needs.
Overseas Quality
Since its establishment, it has been keeping pace with the times, improving the quality of metal shrapnel and conductive film of metal shrapnel to meet the harsh requirements of customers all over the world. The reliability and long-term stability of product quality have been continuously praised by foreign customers, and the quality has been rising steadily.
Rich products
From round, cross (four corners), waist round shrapnel to custom shrapnel, from single-layer structure, double-layer structure, EMI printing, and Rubber structure.
Strict control
From the purchase of raw materials, mold design and production, product production, quality testing, packaging sales, and other aspects of strict operation by the requirements of ISO 9001:2015, to ensure the consistent reliability of products;
High-quality service
Punctual delivery; free technical solutions and samples; quick response customers respond 1 hour after mail receipt; after-sales service 1 hour fast processing.
- Shanyo’s in the production process, to prevent too many open and short circuits caused by low yield or reduce drilling, calendering, cutting, and other rough process problems caused by the FPC board scrap, replenishment problems, and assess how to choose the material to achieve the best results for customers to use the flexible circuit boards, pre-production pre-processing is very important.
- Pre-production pre-processing needs to deal with three aspects, these three aspects are completed by engineers.
- FPC board engineering assessment, the company’s production capacity to meet customer board requirements and unit costs.
- Engineering assessment through, immediately preparing materials to meet the raw material supply of each production process.
- Engineer customer’s CAD structural drawings, Gerber line data, and other engineering documents to deal with, to suit the production environment and production specifications of the production equipment.
- Production drawings MI (engineering process card) and other information are delegated to the production department and various departments such as clerical control, procurement, etc., into the regular production process.
Flexible Printed Circuit Board Manufacturers Production Process
Double-side plate system
Open material → Drilling → PTH → Plating → Pre-treatment → Dry film → Alignment → Exposure → Development → Graphic plating → Stripping → Pre-treatment → Dry film → Alignment → Exposure → Development → Etching → Stripping → Surface treatment → Overlay film → Pressing → Curing → Immersion of nickel and gold → Printing of characters → Cutting → Electrical testing → Punching → Final inspection → Packing → Shipments
Flexible Printed Circuit Board Manufacturers Production Process
Double-side plate system
Open material → Drilling → PTH → Plating → Pre-treatment → Dry film → Alignment → Exposure → Development → Graphic plating → Stripping → Pre-treatment → Dry film → Alignment → Exposure → Development → Etching → Stripping → Surface treatment → Overlay film → Pressing → Curing → Immersion of nickel and gold → Printing of characters → Cutting → Electrical testing → Punching → Final inspection → Packing → Shipments
China Flexible Printed Circuit Board Basic Structure
Common single panel structure diagram
Common double sided laminated composition
Hollow plate composition
The combination of soft and hard plate composition
Multi-layer board structure diagram
The substrate generates a double sided laminated composition
Copper Film: The copper film is divided into electrolytic copper and rolled copper. The common thicknesses are 1oz 1/2oz and 1/3 oz.
Substrate Film: Common thicknesses are 1 mil and 1/2 mil.
Glues: Thickness depends on the customer’s requirement.
Cover Film: Cover Film: For surface insulation. Common thicknesses are 1mil and 1/2mil.
Glues: Thickness depends on the customer’s requirement.
Release Paper: To avoid foreign matter from adhesive before pressing; to facilitate the work.
PI Stiffener Film: PI Stiffener Film: Reinforces the mechanical strength of the FPC and facilitates the surface mounting process. Common thicknesses range from 3mil to 9mil.
Glues: Thickness depends on the customer’s requirement.
Glues (Adhesives): To avoid adhesive from sticking to foreign objects before pressing.
EMI: Electromagnetic shielding film protects the circuit board circuit from outside (a strong electromagnetic area or susceptible to interference area) interference.
Bottom line, if you have flex circuit design or flex printed circuit board needs, we can help. contact us
Order Fpc Flexible Printed Circuit: Easy & Fast
Instant Quotation
- Eliminate long waits and reduce uncertainty. With our instant online quotations, you gain clear cost insights immediately, and free & professional DFM feedback, streamlining your Metal Dome Switch, Metal Dome Array, EMI Printing, Metal Dome Array, Light guide plate module, FPC switch, Membrane switch panel, Backlight Module, Equipment, die-cut products, light guides, UV bumps, FPC, panel buttons, PCB circuits, film flexible circuits and Packaging machining decisions.
Online Annotation
- Say goodbye to tedious back-and-forths. Directly annotate your 3D drawing online and convey specific changes or queries instantly via live chat. Ensure precise machining requirements are communicated and understood without ambiguity.
All-in-One Project Management
- Take full control of your Metal Dome (Snap Dome) projects. Manage both quotes and orders in a unified platform. Effortlessly oversee every project, ensuring that each stage is transparent and easily accessible.
Team Collaboration
- Strengthen your metal dome array (metal dome sheet) coordination. Create teams, invite members instantly, and access shared quotes & orders with ease. Include key departments like accounting, ensuring smooth payment oversight and execution.
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Daily Support
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Reliable Pricing
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Overseas Quality
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Rich products
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