Looking for Reliable PTFE PCBs? What makes F4BM PCB Stand Out?

Brief introduction

Wangling F4BM high frequency materials are PTFE glass fiber cloth copper clad laminates that combine glass fiber cloth,PTFE resin, andPTFE film through a meticulous manufacturing process.

These F4BM series laminates offer improved electrical performance compared to F4B due to their wider range of dielectric constants, low dielectric loss, increased insulation resistance, and enhanced stability. Consequently, they can serve as replacements for similar foreign products.

F4BM iscladded with forward-rotating ED copper foil, making it suitable for applications without PIM (Passive Intermodulation) concerns.

Features

You have the flexibility to choose from a range of DK (dielectric constant) options spanning from 2.17 to 3.0.

The DF (dissipation factor) falls within the range of 0.001 to 0.0018.

There is a wide selection of thickness options to accommodate your specific requirements and the availability of diverse sizes allows for cost savings.

All these characteristics make it well-suited for commercial applications, large-scale production, and cost-effectiveness.

PCB Capability

Our comprehensive PCBmanufacturing capabilities cover a wide range of aspects.

Wecanprovide Single Sided, Double Sided, Multilayer, and Hybrid PCBs to meet your specific needs.

You have the flexibility to choose from copper weights of 1oz (35µm) and 2oz (70µm) for your PCBs.

Additionally, we offer a variety of dielectric thickness options, ranging from 0.8mm to 12.0mm, including specific measurements such as 1.524mm and 1.575mm.

Our capabilities extend to PCB sizes up to 400mm X 500mm, ensuring we can accommodate your size requirements.

To customize the appearance of your PCBs, we provide a selection of solder mask colors, including Green, Black, Blue, Yellow, Red, and more.

Furthermore, we offer multiple surface finish options, such as Bare copper, HASL, ENIG, Immersion silver, Immersion tin, OSP, Pure gold, ENEPIG, and more.

Applications

F4BM high frequency PCB finds it’s wide range of applications, such as phase shifter, passive device, power divider, coupler, combiner, feed network, phased array antenna, satellite communications, base station antenna and radar etc.

If you’re tired of clunky gadgets that prioritize tech over taste, meet the E18 PRO smartwatch—a device that marries elegance with functionality like no other. From the moment you strap it on, its jade-inspired design catches the eye, with a sleek, integrated look that feels less like a gadget and more like a statement accessory. The bright color big screen isn’t just for show; it makes checking stats, messages, or the weather a breeze, even in sunlight.​

What truly sets it apart is how it simplifies daily chaos. Dual Bluetooth chips mean you can take calls directly from your wrist—no more fumbling for your phone during a workout or while carrying groceries. Missed calls become a thing of the past, thanks to vibration alerts, and one-touch rejection lets you stay focused when needed. Music lovers, rejoice: AAC speakers with high-performance decoding chips let you stream your favorite playlists without needing your phone nearby.​

Health tracking feels less like a chore, too. 24/7 monitoring of heart rate, blood pressure, and blood oxygen replaces those bulky, outdated devices, giving you real-time insights into your well-being. Whether you’re hitting the gym (with multi-sport modes to track every move) or just running errands, the E18 PRO keeps up. And with NFC access control, unlocking your front door or office is as easy as lifting your wrist—a small touch that adds big convenience.​

Magnetic charging ensures you’re never caught with a dead battery, and with a range of customizable dials, you can switch up its look to match your mood. The E18 PRO isn’t just a smartwatch; it’s a lifestyle upgrade that proves technology can be both intelligent and beautiful.

Understanding the Role of Porosity in Bone Tissue Engineering

3D-printed bioactive bone scaffolds play a critical role in bone tissue engineering, where porosity is a key parameter that influences cell adhesion, proliferation, nutrient transport, and new bone formation. Both excessively high and low porosity levels can negatively impact the scaffold’s mechanical stability and biological performance. Therefore, accurate porosity analysis of 3D-printed scaffolds is vital to improving design and optimizing regenerative outcomes.

Scanning Electron Microscopy for Microstructural Evaluation

The CIQTEK SEM3200, a tungsten filament scanning electron microscope (SEM), provides high-resolution imaging capabilities for examining the internal structure of 3D-printed scaffolds. It reveals critical pore characteristics such as size, shape, interconnectivity, and distribution, offering visual clarity that is essential for reliable quantitative porosity analysis.

Image-Based Porosity Measurement

Using CIQTEK's advanced image analysis software, researchers can select representative scaffold regions in the SEM images and calculate the ratio of pore area to total area. This image-based approach provides precise porosity values, along with statistical measures such as average porosity and standard deviation, ensuring the uniformity and reproducibility of scaffold manufacturing.

Correlating Printing Parameters with Scaffold Porosity

SEM3200 enables an in-depth investigation into how various 3D printing parameters, including printing speed, nozzle temperature, and material concentration, impact scaffold porosity. By correlating SEM-derived porosity data with manufacturing variables, researchers can fine-tune the fabrication process to enhance scaffold performance for specific biomedical applications.

Why Choose CIQTEK SEM3200 for Porosity Evaluation

• High-Resolution SEM Imaging: Accurately captures micro-scale pore structures with excellent clarity.
• Reliable Measurement: Produces consistent, reproducible data suitable for scientific analysis and peer-reviewed publication.
• User-Friendly Operation: Intuitive interface with localized software reduces training time and increases throughput.
• Cost-Effective Performance: Delivers professional-grade results with an attractive price-to-performance ratio.

Empowering Research in Bone Tissue Engineering

With the CIQTEK SEM3200, universities, hospitals, and medtech innovators now have a dependable tool for characterizing the porosity of 3D-printed bioactive scaffolds. Whether your focus is on accelerating preclinical research or optimizing clinical-grade implants, this SEM solution enables deeper insights into scaffold structure, driving advancements in regenerative medicine and biomaterials development.

Explore how scanning electron microscopy for 3D-printed scaffolds can enhance your research capabilities. Learn more about the CIQTEK SEM3200

CIQTEK is excited to announce our upcoming participation in Microscopy & Microanalysis (MM) 2025, taking place July 27–31 at the Salt Palace Convention Center in Salt Lake City, Utah, USA. This annual conference is one of the most important global events in the field of microscopy, bringing together leading researchers, instrument developers, and application specialists.

CIQTEK Booth #1303

At our booth, visitors will have the opportunity to explore CIQTEK’s latest developments in electron microscopy, including our next-generation SEM and FIB systems. Whether you’re seeking high-resolution imaging, intuitive operation, or reliable performance, our solutions are designed to meet the needs of both research and industrial users.

• FIB-SEM
• High Speed FESEM
• FE-SEM
• Tungsten SEM
• TEM

JH Technologies Booth #1403

Our trusted U.S. partner, JH Technologies, will also be exhibiting at Booth #1403, offering localized consultation, technical support, and insight into how CIQTEK products are serving laboratories across North America.

We look forward to meeting scientific professionals, collaborators, and microscopy enthusiasts in Salt Lake City to share insights, explore possibilities, and build lasting partnerships.

Save the date and visit us at MM2025!

Follow CIQTEK on LinkedIn for more updates and behind-the-scenes highlights from MM2025.

CIQTEK is pleased to announce the successful completion of our participation in the Microscience Microscopy Congress (MMC) 2025, held from July 1 to 3 at Manchester, UK. As one of the largest and most influential events dedicated to microscopy in Europe, MMC brought together leading researchers, instrument manufacturers, and innovators from around the world.

About MMC:

The Microscience Microscopy Congress is one of Europe’s leading microscopy conferences, organized by the Royal Microscopical Society. It features a vibrant exhibition, international conference sessions, and practical workshops, attracting thousands of professionals in imaging and analysis.

This year, CIQTEK joined hands with our valued UK partner, SciMed Ltd., to exhibit at a shared booth, presenting our Tungsten Filament Scanning Electron Microscope SEM3200, a cost-effective, high-performance solution for routine imaging and materials analysis.

Throughout the three-day event, we were delighted to engage with researchers, engineers, and microscopy enthusiasts from across academia and industry. Visitors had the opportunity to see live demonstrations, discuss application needs, and explore how CIQTEK’s SEM technology can support their work with reliable imaging performance, user-friendly operation, and accessible pricing.

In addition to our joint booth with SciMed, we are proud to have another CIQTEK SEM3200 Tungsten Filament SEM featured at the Bruker booth. We sincerely thank Bruker for their collaboration and for providing this platform to showcase our technology to a wider audience, enabling visitors to see firsthand the powerful integration of CIQTEK’s SEM with Bruker’s advanced analytical solutions.

We extend our heartfelt thanks to everyone who visited our booth and shared valuable feedback. A special thank-you to SciMed for their strong support and seamless collaboration before and during the event. We look forward to deepening our partnership and continuing to serve the UK microscopy community together.

The QX15 smartwatch has emerged as a standout device in the realm of wearable technology, seamlessly integrating classic aesthetics with cutting-edge features that enhance daily life. Its 1.85-inch TFT HD screen, boasting a 240*284-pixel resolution, delivers sharp visuals and vibrant colors, ensuring clear readability whether users are checking notifications or tracking fitness metrics.​

At the core of the QX15’s appeal is its comprehensive health monitoring suite. With 24/7 heart rate and blood oxygen tracking capabilities, the watch provides users with real-time insights into their physical condition. The advanced Savi algorithm enables precise sleep monitoring, accurately identifying different sleep stages such as deep sleep, light sleep, rapid eye movement, and wakefulness. This data empowers users to analyze and improve their sleep quality. Moreover, the women’s health management feature, leveraging intelligent deep learning algorithms, offers accurate predictions for menstrual, ovulation, and fertile periods, providing essential support and timely reminders.​

Versatility is another key strength of the QX15. Catering to fitness enthusiasts, it offers over 100 sports modes, covering a wide array of indoor and outdoor activities. The built-in Hi-Fi speaker guarantees high-quality audio for both calls and music, enhancing the overall user experience. Bluetooth call functionality allows for convenient wrist-based communication, ensuring users never miss important calls. With an IP68 waterproof rating, the watch can withstand daily exposure to water, from rain to handwashing. Additionally, its robust battery life, lasting up to 5 days with continuous heart rate monitoring and 35 days on standby, ensures uninterrupted usage, making the QX15 a reliable companion for any lifestyle.

CIQTEK is pleased to announce our participation in analytica Lab Africa 2025, taking place from July 8 to 10 at the Gallagher Convention Centre in Johannesburg, South Africa.

As one of the leading exhibitions for laboratory technology and analysis in the region, analytica Lab Africa provides a valuable platform for industry professionals to explore the latest advancements in scientific instrumentation.

We invite attendees to visit us at Booth #M04, where we will be showcasing CIQTEK’s comprehensive portfolio of cutting-edge instruments, including:

• Electron Microscopes (TEM, SEM, FIB-SEM)
• Nuclear Magnetic Resonance (NMR) Spectrometers
• Electron Paramagnetic Resonance (EPR) Spectrometers
• BET Surface Area Analyzers
• And more solutions for scientific research and industrial applications

We look forward to connecting with researchers, partners, and customers from across Africa and beyond. Join us in Johannesburg to discover how CIQTEK is empowering innovation through advanced technology!

The WNHVIPT-1 through-wall series connector is a high-voltage shielded connector with a plastic housing, meticulously developed by WAIN for internal high-voltage connections in new energy vehicles. This connector is widely applicable in passenger vehicles, construction machinery, special-purpose vehicles, as well as key components such as electric motors and motor controllers for electric motorcycles.
With extensive technical expertise and a comprehensive product portfolio in this field, WAIN ensures that the WNHVIPT-1 series connectors are perfectly compatible with shielded cables of various specifications, covering different wire sizes from 2.5mm² to 95mm². This versatility fully meets the demands of diverse application scenarios.
Additionally, the series excels in current-carrying capacity, supporting up to 320A MAX, making it ideal for high-power, high-current operating environments. 

In today's competitive hospitality industry, every detail shapes guest satisfaction. Headboard lamps have emerged as a silent powerhouse, and evolved from a niche feature to an essential element in modern guest room design. When selecting a hotel headboard light fixture, consider the following factors.

1. Functionality and Purpose

The primary function is often reading, however they can also be a source of indirect mood lighting. Determine which way you are most likely to use it.

2. Fixed or Adjustable

The lights with adjustable function are highly desirable, goose necks or adjustable arms or swivel heads allow each guest to position light exactly where they need it. On the other hand, fixed lights do not move and the usage is incredibly limited.

3. Brightness Levels

Offering dimmable options allows guests to adjust the brightness to their preference, creating different moods or catering to varying light sensitivities.

4. Integrated Features

Built‑in USB charging ports or power outlets or touch‑switch activation in the base offer immense convenience to tech‑savvy travelers.

5. Mounting Style

Consider whether you want to mount the light on the headboard or the wall. You can choose recessed fixtures or surface mounted fixtures for both applications.

6. Design Harmony

Choose finishes, shapes, and materials that reflect your property's aesthetic and complement the overall interior design of the hotel room. Whether sleek and minimal, classic and ornate, or rustic and natural, it can blend seamlessly into the surrounding.

At Sunwin, we provide headboard lights to exceed hospitality demands. As a top hotel project lamps vendor in China, we help properties worldwide merge style, function, and efficiency - proving that the smallest details often shine brightest. Ready to transform your rooms? Explore Sunwin's Headboard Lighting Collection or contact us now sales@sunwinhotellighting.com!

On June 20, 2025, representatives of the Beijing Physical & Chemistry Testing Technology Society visited CIQTEK. A special seminar on “Innovation and Application of Magnetic Resonance Spectroscopy Technology” was held, along with on-site Nuclear Magnetic Resonance (NMR) data testing and comparison.

The Beijing Physical & Chemistry Testing Technology Society was established in 1980 as an academic organization voluntarily formed by experts in the analytical testing industry in the Beijing area. Its purpose is to unite and organize professionals in the analytical testing field within Beijing, promoting the development of analytical testing technologies. The society currently has over 1,000 members.

CIQTEK Launched NMR Spectrometer, Impressed Visiting Experts with On-site Performance

At the Beijing Spectroscopy Conference held from May 23 to 25, 2025, CIQTEK President Dr. Max He officially announced the new products — the 400 MHz and 600 MHz NMR spectrometers.

Although Dr. Max's presentation featured only a few slides on CIQTEK NMR instruments, it sparked considerable interest within the Beijing Physical & Chemistry Testing Technology Society. CIQTEK's emergence as a manufacturer of high-field NMR spectrometers was met with both surprise and excitement. The announcement quickly became a topic of lively discussion, with many experts expressing a strong desire to visit CIQTEK for an in-depth look at the instruments.

In response, CIQTEK extended a formal invitation to members of the Beijing Physical & Chemistry Testing Technology Society, including committee members and relevant experts, to visit the company for an on-site evaluation of their NMR research. This marked the Society’s first official delegation visit outside of Beijing.

Group photo of the Beijing Physical & Chemistry Testing Technology Society delegation and the CIQTEK team

On-site Benchmarking: Data Performance, Analysis Speed, and Quantity

During the one-day visit, participants engaged in in-depth discussions and hands-on data acquisition. The interaction was highly productive, with both sides delving into technical details and application insights. Numerous questions and suggestions were raised, making the session both interactive and constructive.

Reliable Spectral Data

The reliability of spectral data is the primary criterion for evaluating the performance of an NMR spectrometer. Therefore, sensitivity, testing efficiency, and spectral quality were key focuses during this on-site evaluation.

During the comparative testing session, two standard samples were prepared for live demonstrations:

• 0.1% Ethylbenzene — used to evaluate ¹H sensitivity
• 40% ASTM standard — used to evaluate ¹³C sensitivity

The detailed comparison results are as follows:

(1) ¹H sensitivity

The test results from other manufacturers are as follows:

• Brand A: Measured signal-to-noise ratio of 341:1 (sample not spinning)

• Brand B: Measured signal-to-noise ratio of 349:1 (sample not spinning)

• CIQTEK NMR Spectrometer CAN400: Measured signal-to-noise ratio of 458:1 (sample not spinning)

(2) ¹³C Sensitivity

The test results from other manufacturers are as follows:

• Brand A: Measured signal-to-noise ratio of 224:1 (sample not spinning)

• Brand B: Measured signal-to-noise ratio of 229:1 (sample rotations at 15 Hz)

• CIQTEK NMR Spectrometer CAN400: Measured signal-to-noise ratio of 224:1 (sample not spinning)

The on-site measured data confirm that the detection sensitivity of CIQTEK NMR spectrometers is on par with or exceeds that of the compared competitors.

(3) Testing Efficiency

Using the standard proton NMR test requirement (8 scans) as a benchmark, the time to complete a ¹H NMR spectrum on the CIQTEK CAN400 spectrometer was measured. While maintaining consistent spectral quality, the overall testing time was reduced by approximately 40%. This demonstrates the instrument’s high testing efficiency and reflects CIQTEK’s strong technical capabilities and accumulated expertise in various technical details. Improving efficiency while ensuring data reliability significantly enhances cost-effectiveness and is a key factor in gaining broad recognition.

In addition, non-standard samples were also tested on-site, and Dr. Junfeng Xiang, Vice Chairman of the Beijing Physical & Chemistry Testing Technology Society, was invited to operate the instrument firsthand. Before this visit, Dr. Xiang’s understanding of CIQTEK was limited to paramagnetic resonance solutions, but now it has expanded to include NMR solutions. He noted that CIQTEK’s NMR software incorporates original design concepts, which is commendable. Drawing on his extensive experience in NMR applications, Dr. Xiang also provided valuable suggestions regarding both software and hardware details.

Unprecedented Magnetic Resonance Speed

During this on-site visit, CIQTEK demonstrated an unprecedented pace of advancement in magnetic resonance technology. CIQTEK’s rapid development in paramagnetic resonance spectrometers has been well recognized. However, whether this rapid progress could be replicated in the field of NMR spectrometers was an open question before the visit. Now, we have the answer.

In just two to three years, CIQTEK has successfully developed world-class NMR spectrometers, marking a speed of technological advancement that is truly unprecedented.

What drives this remarkable pace is CIQTEK’s R&D team, which has leveraged its extensive expertise in developing EPR spectrometers and successfully translated it into NMR spectrometer innovation. More importantly, it showcases the strength and cohesion of an exceptional magnetic resonance research team.

According to CIQTEK’s introduction, their magnetic resonance research team consists of over 100 members, with 30 to 40% holding doctoral degrees in related fields. They conduct comprehensive research across multiple aspects, including technical principles, magnets, probes, spectrometers, and software.

Large-Scale Production and Delivery of Spectrometers

During this visit, we observed only two NMR spectrometers on display at CIQTEK’s Research and Application Center. Looking ahead, we hope to see tens, hundreds, or even more NMR spectrometers produced and deployed across various research institutes soon.

This growth will place higher demands on the manufacturer’s capabilities for large-scale production and technical support for application deployment.

This visit to CIQTEK was a great surprise, revealing a cutting-edge scientific instrument company with a professional team and a global vision.