Semi flexible PCB-深圳市海博精密电路有限公司

满足您所有 PCB 需求的一站式解决方案

1-20 layer semi flexible PCB
Flexible layers: 1-2 conductive layers
Material: Special FR4 material
Bending angle: 0-90 degrees
Bending times: 1-100 times
Copper thickness: 0.5-2oz

PCB 板有各种形状和尺寸，可应对各种机械挑战。其中一个机械问题就是 PCB 板的弯曲。常见的刚性 FR4 PCB 板整个 PCB 上都有均匀且厚的 FR4，因此它们无法弯曲。许多 PCB 解决方案仍然使用 FRC 或扁平带状电缆连接两块板，并将它们视为一块柔性 PCB。然而，这些电缆不是刚性的，很容易损坏，因此不可靠。主要是，FRC 无法保持形状，直到电缆上引入张力。

为了解决这个问题，引入了柔性 PCB，但柔性 PCB 对于 PCB 的轻微弯曲来说非常昂贵，并且其可容纳的层数有限。为此，使用半柔性 PCB，因为它们更便宜、更简单，并且经过适当的设计可以弯曲到一定角度而不会损害结构完整性（通常，半柔性 PCB 不用于实现高弯曲角度）。

什么是半柔性 PCB？

半柔性 PCB 或半柔性 PCB 是一种独特的 PCB，它在刚性 PCB 中融入了柔性，同时仍使用相同的刚性基板（主要是 FR4）。半柔性 PCB 通过减薄 PCB 的某些部分来实现柔性。这些部分足够薄，可以弯曲但不会断裂，因此使 PCB 具有一定的柔性（此处“有一定的柔性”是指半刚挠性 PCB 可以弯曲的次数有限，而不会损害整个 PCB 的结构完整性）。FR4 半柔性 PCB 的刚性部分与普通刚性 PCB 相同。组件仅放置在 PCB 的刚性部分上，因为将组件放置在柔性部分上很复杂，并且组件会降低柔性部分的整体柔性。

简而言之，FR4 半柔性 PCB 是一种由刚性材料制成的特殊 PCB，可通过减薄 PCB 上某些部分的铣削厚度来实现局部弯曲。半柔性 PCB 适用于 FR4 柔性 PCB 刚性、静态且受限的情况。对于动态和大面积弯曲，则使用刚柔结合 PCB。

半柔性 PCB 之间的差异和刚性柔性 PCB

许多人都混淆半柔性 PCB 和刚柔性 PCB 是两种不同类型的 PCB，用途相似但灵活性不同。

硬质柔性PCB: 刚挠结合板也包含刚性和柔性部分，但柔性部分和刚性部分由不同的基板制成。刚性部分使用 FR4 等刚性材料，而柔性部分使用聚酰亚胺等不同的柔性材料。

半柔性 PCB：虽然半柔性 PCB 不如刚挠结合 PCB 灵活，但它们比刚挠结合 PCB 便宜得多。向 PCB 供应商下订单时必须谨慎。

The advantages of semi flexible PCB

Semi flexible PCB has many advantages, making it a popular choice in the flexible PCB industry. Some of the advantages are as follows:

Rigid flexibility: Although this term may sound contradictory, limited flexibility helps the structure of bent PCBs remain stable and maintain the folded geometric shape. Its folding and bending capabilities enable PCBs to be packed into smaller shells or shells than rigid PCBs. By adding more flexible parts to the semi flexible PCB, more complex geometric shapes can be formed and maintained.

Assembly: By eliminating more PCBs and cables, many semi flexible PCBs only need to "place and use components", simplifying the assembly of PCBs in the casing or shell. It also shortens the time required to assemble the entire solution.

Eliminating the use of cables and wiring harnesses: For shorter distances, semi flexible PCBs are more effective than cable connections because they can simplify the placement of PCBs in the casing.

Cost effectiveness: Semi flexible PCBs are better than rigid flex PCBs and flexible printed circuit boards Compared to connecting 2-3 PCB modules through cables, it is also more cost-effective because:

Use only one material.

Save the setup and engineering costs of 3 PCBs to one PCB.

No cost is incurred for cable connectors or cables.

Improved signal integrity: Compared to internal PCB connections, using cables and connectors will reduce signal integrity. A semi flexible PCB provides internal connections within the PCB, thus reducing the possibility of impedance mismatch.

Enhanced durability: Unlike cables, semi flexible PCBs have strong resistance to vibration and impact, making them durable, reliable, and versatile in many environments.
Disadvantages of Semi Flexible PCB

Although semi flexible PCBs have various advantages, they also have considerable disadvantages, including:

Reduce bending frequency: Although semi flexible boards have flexibility, they can only bend a limited number of times before significant damage occurs. Therefore, it is not recommended to frequently bend semi flexible boards.

Design difficulty: The design of a semi flexible PCB is difficult because there are too many parameters to consider during the design process. Careful planning of PCB design and placement of components on the PCB is necessary.

Shorter flexible parts: Semi flexible PCBs cannot have longer flexible parts like rigid flexible PCBs, as it reduces the mechanical integrity of the flexible parts and therefore cannot be used for applications that require longer flexible parts.
Application of Semi Flexible PCB

Semi flexible PCBs have multiple applications:

Camera flash: The camera flash needs to be compact with minimal wiring and harnesses in the circuit. Therefore, many camera flashes use 2 flexible parts and 3 rigid parts to fold, just like the 3 adjacent faces of a cube. In this way, the flash can remain compact and reliable, and most importantly, the manufacturing and assembly costs are lower

Medical: Many handheld medical devices use semi flexible PCBs to achieve the reliability and flexibility of semi flexible PCBs.

Automotive: Semi flexible PCBs have a large number of use cases in automotive applications. In order to install more electronic systems in the limited space of 2-wheel and 3-wheel vehicles, many manufacturers use semi flexible PCBs to reduce costs, as they are to some extent not affected by vibration and shaking. It also reduces the possibility of short circuits, as very close PCBs now do not require cables.

Consumer electronics: In computer peripherals, compactness is crucial. Many compact speakers experience significant vibrations, making semi flexible PCBs an ideal choice. Early curved screen display models used semi flexible PCBs to introduce curves into their supporting PCBs.
Precautions for designing and using semi flexible PCBs

A semi flexible PCB is not too complex, but special care is required when using and designing it. Some of them are:

Component and via placement: It is not recommended to place through holes, components, or solder joints on the flexible part of the circuit board, as this can make the circuit board more susceptible to physical damage. Components must not be placed at the edges of the rigid part of the PCB to prevent short circuits. The effective weight of rigid parts with components should be almost equal to eliminate imbalances in the structure. It is not recommended to use very heavy components such as transformers and batteries to maintain balance in the PCB.

Layer and routing management: It is recommended to use as few layers as possible in the flexible part of the PCB. Try to route the flexible part of the wiring symmetrically and as evenly as possible. Layer and routing management are crucial for the signal integrity of semi flexible PCBs.

Bending radius of flexible segment: The bending radius is a standard for measuring the degree of bending of flexible printed circuit boards and will not cause any damage. Before bending the Semiflex PCB board on your own, please contact the PCB supplier to confirm its bending radius.

Only applicable for static bending applications: Semi flexible PCBs do not require multiple bending to damage the PCB. It is recommended to use the PCB without further bending after it is just installed in the casing.

Copper content: The flexible part of the PCB must have sufficient copper to conduct the expected current without generating heat. Insufficient copper content can affect the thermal management of the PCB, which may heat up the flexible parts of the PCB·

Sufficient mechanical stress: Applying a large force to bend a semi-rigid PCB may damage the flexible parts of the PCB, so it is recommended to gently bend the semi-rigid PCB.
WHY CHOOSE US

If pursuing cost-effective FPC manufacturing services, choosing a Chinese manufacturer is the best choice. As a manufacturing powerhouse, China has abundant resources, cheap labor, and a large number of technical personnel. We recommend Haibo, a Chinese FPC assembly service provider with over 10 years of experience, who has performed outstandingly in various aspects

Efficient and reasonable quotation:There is an efficient quotation process to assist you in making decisions, providing reasonable prices and highly competitive quotes in China.
High quality and reliable products:Produce high standard printed circuit boards, manufacture and test according to specifications, international standards, and internal controls, and conduct pre production inspections to ensure robust processes.
Quick and on-time delivery:The assembly equipment is in good condition, with high productivity, minimal downtime, short delivery time, and also provides urgent services.
Timely and effective response:Always respond to customer needs, provide accurate information, answer questions through multiple channels, and offer one-stop services.
Strong technical strength:China's FPC manufacturing technology is leading, and Haibo has a complete SMT solution that covers assembly, inspection, and other capabilities. It also provides prototype production and customization services.
Front desk

Office pictures

Office pictures

Workshop pictures

Workshop pictures

SMT surface mount machine

SMT surface mount machine

SMT Online AOI Inspection Machine

VCP coated copper wire

X-RAY inspection machine

Aobao AOI Inspection Machine

Aobao AOI Inspection Machine

Flying Probe Tester

Flame laser machine

Mechanical drilling machine

Mechanical drilling machine

Mechanical drilling machine

Golden Statue Microscope

Fully automatic exposure machine

Fully automatic exposure machine

Fully automatic laminating machine

Developing etching lines

Impedance tester

Common Questions

What does Haibo do?

Haibo is a PCB board manufacturer that provides small and medium batch PCB circuit board, PCB assembly, and electronic manufacturing services, including electronic design, PCB layout, SMT and through-hole assembly, material procurement, final packaging, and project management. Finally, provide high-quality products and services.
What are the benefits of outsourcing my product to Haibo?

Since 2017, we have been a PCB supplier in China, and we have many customers who have been cooperating with us for more than 10 years! We demand that they provide the benefits of being a partner, which is simple: we are trustworthy! During the RFQ process, our CAM engineers will carefully examine all details and raise questions to avoid errors in the future. When customers order PCBs or PCB assemblies from us, we are always able to deliver high-quality products on time.
As a Chinese PCB manufacturer, our factory has obtained UL (E358677) and ISO9001:2015 certifications. We use our professional manufacturing and procurement knowledge and experience to help customers reduce operating costs and delivery requirements.
Does Haibo accept prototypes or small batch orders?

Yes, absolutely so. Since our establishment as a Chinese PCB manufacturer in 2007, we have been focusing on small and medium batch PCB manufacturing and assembly. All of our equipment and personnel are arranged to achieve this goal.
Do you offer fast production?

Yes, we are one of the most trusted circuit board suppliers in the fast PCB field, so we are happy to provide our customers with fast production support. The delivery time is as follows:
PCB bare board: 1-3 working days;
Turnkey PCB assembly: 1-2 weeks.
Does your PCB comply with RoHS and REACH standards?

Yes, all of our printed circuit boards comply with RoHS and REACH requirements. Please visit www.haibofpcba.cn to view our RoHS and REACH compliance statements.
Can you ship the PCB to us?

yes. We can deliver PCBs to your location via express delivery (UPS, FedEx, or DHL), regular air and sea freight. As an experienced PCB board manufacturer, we can ship products to anywhere you want. Please follow this webpage link to learn about our transportation policy:// www.haibofpcba.cn。
Can you produce PCBs that meet IPC Level 3 standards?

Yes, as one of the professional PCB manufacturers, we can produce PCBs according to IPC-A-600 Level 3 and assemble PCBs according to IPC-A-610 Level 3.
Is Haibo a reliable PCB manufacturer?

of course! Haibo has been engaged in PCB manufacturing business since 2017. It has obtained many international quality certifications, such as ISO9001, ISO13485, UL (E358677), etc. For over a decade, many major global brands have trusted Haibo
What is the minimum order quantity for your PCB production?

As a professional supplier of small and medium-sized circuit boards, we do not have a minimum order quantity. We are a printed circuit board manufacturer specializing in sample manufacturing and small to medium batch production. We can produce PCBs from one piece and fully assemble PCBA; For us, no order is too small.
Does Haibo provide engineering assistance?

As a Chinese PCB supplier with over 10 years of experience, our engineers evaluate existing designs and assist in optimizing manufacturability (DFM) for new designs, thereby minimizing costs and shortening product time to market.
What is the expected delivery cycle for standard production operations?

As a professional PCB manufacturer in China, our average delivery time is as follows:
PCB： 3-10 working days;
PCB assembly: 2-4 weeks;
Complete turnkey electronic assembly: 4-6 weeks.
This depends on the delivery cycle, specifications, and complexity of materials and parts.
How long will it take for me to receive a complete quotation?

Our standard delivery cycle for your RFQ is:
PCB bare board: 1 to 2 working days;
Circuit board assembly including component procurement: 1-3 working days;
Complete turnkey box assembly: 3-10 working days.
As an experienced Chinese PCB factory, if you urgently need it, we can also provide you with a quotation within a few hours.
What documents are required to produce my printed circuit board?

As a PCB circuit manufacturer, we need PCB files (preferably in Gerber format) that include specifications such as PCB material, circuit board thickness, stacking, copper thickness, surface finish, and the quantity you require.
What documents do you need to quote for PCB assembly services?

Electronic circuit board manufacturers like us always require a bill of materials, Gerber data, and quantity forecasts. If you have any questions, please contact us via email: haibo_fpcba1668@163.com .
What information do you need to quote for a complete turnkey component?

As a printed circuit board manufacturer, we require your complete data package (including Gerber files, BOM list, assembly instructions, etc.), quantity forecast, and budget. If you have any questions, please contact us via email: haibo_fpcba1668@163.com .
How to submit a Request for Quotation (RFQ)?

Please send your inquiry directly to our sales team email: haibo_fpcba1668@163.com
Alternatively, you can visit our sales team page and contact our sales personnel:// www.haibofpcba.cn
Is Haibo a Chinese PCB manufacturer?

Yes, Haibo is a Chinese PCB manufacturer. By utilizing advanced electronic component technology and the labor advantage of Shenzhen, China, Haibo supplies high-quality printed circuit boards at low cost.