Our core range of microwave PCB laminates and high-speed memory architectures engineered to support Cameroon's telecommunication upgrades and enterprise servers.
As Central Africa's largest economy, Cameroon is undergoing a massive digital transformation driven by the national SND30 development strategy. Major telecommunication operators, including MTN Cameroon, Orange Cameroon, and the state-owned Camtel, are continuously expanding their 4G LTE footprint while preparing the foundational infrastructure for 5G trials. This network growth hinges on high-reliability hardware capable of managing higher frequencies and higher data throughput without signal decay.
Furthermore, Douala, as the primary maritime port for Cameroon and landlocked neighbors Chad and the Central African Republic, is modernizing its harbor logistics. This requires robust maritime radar systems, satellite tracking equipment, and automated terminal operating networks that rely heavily on high-frequency (RF) printed circuit boards. The political capital, Yaoundé, is simultaneously deploying smart city surveillance systems and IoT-driven utility networks. These real-world applications demand specialized multi-layer PCBs and hybrid stack-ups capable of withstanding the tropical conditions of Central Africa.
Cameroon's equatorial and tropical climate poses unique challenges for electronic components. High relative humidity (often exceeding 80% in Douala) can easily infiltrate standard FR-4 laminates, leading to shifts in dielectric constant (Dk) and increased dissipation loss (Df). This results in transmission line impedance mismatches and catastrophic RF packet drops. Our specialized Rogers 4000 and Shengyi High-TG hybrid laminates are designed with a low moisture absorption rate and low thermal coefficient of dielectric constant, ensuring stable RF performance in high-temperature, humid environments.
Cameroon’s agricultural and mining sectors are increasingly integrating remote monitoring and IoT telemetry. High-frequency transceivers operating in the sub-GHz and 2.4GHz bands are deployed across cocoa plantations and mining facilities in the East Region. These systems require reliable microstrip antenna designs, low-noise amplifiers, and power splitters that can only be successfully realized using precision-machined RF PCBs with controlled impedance and high dielectric stability.
Choosing the correct substrate material is paramount when designing high-frequency circuitry. In applications operating between 3 GHz and 100 GHz, traditional FR-4 is inadequate because of its high dissipation factor (approximately 0.02) and unstable dielectric constant across varying temperatures and frequencies. The table below highlights the performance improvements when using Rogers and high-performance Shengyi laminates for Cameroon's telecom deployment:
| Material Type | Dielectric Constant (Dk @ 10GHz) | Dissipation Factor (Df @ 10GHz) | Moisture Absorption (%) | Best Applications in Cameroon's Climates |
|---|---|---|---|---|
| Rogers RO4003C | 3.38 ± 0.05 | 0.0027 | 0.06% | Base station power amplifiers, satellite LNBs, automotive radar |
| Rogers RO4350B | 3.48 ± 0.05 | 0.0037 | 0.06% | High-reliability RF designs, multi-layer hybrid telecom backhaul |
| Shengyi FR4 High TG170 | 4.60 ± 0.10 | 0.0150 | 0.15% | Digital control sections, mixed-signal power supplies, LED backplanes |
| PTFE (Teflon) Based | 2.20 - 3.00 | 0.0009 | <0.01% | Ultra-low loss space communications and military radar systems |
For many infrastructure projects in Douala and Yaoundé, a full Rogers multilayer board can be cost-prohibitive. To solve this, we engineer Hybrid Mixed-Pressure PCBs. By utilizing Rogers 4000 series on the top layers for RF routing (microstrip and stripline), and using economical Shengyi FR4 High TG170 for the inner power and ground layers, we deliver high-performance RF designs that fit tight budgets. This provides the best balance of mechanical strength, signal integrity, and manufacturing cost.
Corexis Memory Technology Co., Ltd. is a professional DDR5 memory and electronic control system manufacturer dedicated to delivering high-performance DRAM solutions and printed circuit boards for global OEM, ODM, and brand customers. Since its establishment in 2016, the company has focused on memory technology innovation, advanced SMT manufacturing, and strict quality management. Our products are widely used in desktop PCs, laptops, servers, industrial computers, embedded systems, and AI applications globally.
With a modern manufacturing facility covering 21,800 m², Corexis integrates R&D, SMT production, testing, packaging, and quality assurance under one roof. Our experienced engineering team continuously develops reliable and high-speed DDR5 memory products and advanced PCBA systems that meet international standards and the evolving demands of the African and global markets.
Driven by innovation and customer satisfaction, Corexis is committed to providing reliable memory and PCB solutions with competitive pricing, stable supply capacity, and responsive technical support. Our team provides comprehensive hardware development, firmware optimization, and custom PCB layout engineering to match the localized demands of systems integrators in Cameroon and the wider CEMAC region.
We perform 100% full inspection on all high-frequency PCBs and memory modules before shipment. Our incoming material inspection (IQC), in-process inspection (IPQC), final quality control (FQC), and outgoing quality assurance (OQA) ensure zero-defect electronics arrive at your facility in Douala or Yaoundé.
High-reliability DDR4 RAM modules optimized for server farms, cloud databases, and high-performance computing centers throughout Cameroon.
Partnering with a professional Chinese electronics manufacturer provides Cameroonian firms with substantial cost and quality advantages. By utilizing advanced automated SMT production lines located in China's Silicon Valley, we achieve economies of scale that are impossible to duplicate locally.
Due to our long-term strategic relationships with brand name suppliers like Rogers, Taconic, Arlon, and Shengyi, we maintain a steady stock of high-frequency materials. This avoids long material lead times and ensures we can fast-track high-frequency PCB prototyping for telecom operators in Cameroon.
We possess 8+ years of global export experience. We handle customs declarations, export packaging, and freight routing. For bulk shipments, we utilize sea freight directly to the Port of Douala. For urgent RF network repairs, we utilize DHL/FedEx air freight to Douala (DLA) or Yaoundé (NSI) airports.
All finished PCBs and PCBA modules are packed using moisture-barrier vacuum-sealed bags with desiccants and humidity indicators. This safeguards the sensitive Rogers substrates and components against the high relative humidity typical of tropical marine transport.
We manufacture all high-frequency printed circuit boards to IPC Class 2 or Class 3 standards depending on application criticality. Our engineering capabilities include high-precision impedance control, blind/buried vias, microvias, laser drilling, and various surface finishes. The table below lists our general capability limits for high-frequency PCB processing:
| Technical Parameter | Standard Capabilities | Advanced Capabilities (Advanced Request) |
|---|---|---|
| Layer Count | 1 - 12 Layers | 14 - 36 Layers (Hybrid Stackups) |
| Impedance Control Tolerance | ± 10% | ± 5% (Precision Controlled Stripline) |
| Minimum Trace Width / Spacing | 0.1mm (4mil) | 0.075mm (3mil) for RF microstrips |
| Aspect Ratio | 8:1 | 12:1 |
| Surface Finish Options | HASL, ENIG, OSP | ENIPIG, Immersion Silver, Immersion Tin |
| Laminate Brands | Shengyi, Kingboard | Rogers, Taconic, Nelco, Megtron |
Our quality department employs 56 certified inspectors. Every high-frequency batch undergoes AOI (Automated Optical Inspection), X-ray thickness testing, Flying Probe or Dedicated electrical test, and Time-Domain Reflectometry (TDR) testing to guarantee the exact impedance required by your network engineering designs.
Explore our complete product line below. Ensure to maintain the respective product URLs when selecting items for system integration.
Take a virtual tour of our 21,800 m² state-of-the-art facility featuring high-speed Yamaha SMT machines, computerized testing zones, and dust-free packaging bays.
Corexis Memory
