Shenzhen KKPCB Technology Co., Ltd. (KKPCB) is a professional PCB and PCBA manufacturer dedicated to providing one-stop electronic manufacturing solutions. Specializing in high-difficulty, small to medium batch PCB and PCBA production, we focus on delivering high-precision, high-reliability products with fast turnaround times to meet customers’ complex design and technical requirements.

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05, 258 Shenshan Rd, Longdong Community, Baolong St, Longgang Dist, Shenzhen, China

+86-177-4855-1367

Engineering Technology
KKPCB Case Study: Hybrid Power+RF PCB for Base Station Applications

KKPCB Case Study: Hybrid Power+RF PCB for Base Station Applications

Client: Anonymous
Industry: Telecom Infrastructure, 5G Macro/Micro Base Stations
Application: Power Amplifier (PA) Modules + RF Front-End PCBs

High-power base station equipment requiring PCBs are able to handle:

High current (30A+) for PAs

Low-loss RF (3.5GHz-28GHz for 5G)

Thermal stability (85°C ambient, 125°C local hotspots)

Key Challenges Faced:

Delamination risk from mixed thick-copper (6oz) and RF layers.

EMI coupling between power and RF sections.

Thermal warping under high thermal cycling.

Engineering Technology

KKPCB Case Study: High-Frequency Fiber Optic Transceiver PCB for Fiber Instrument Sales

Client:  Anonymous
Industry: Fiber Optic Test & Measurement, High-Speed Data Transmission
Application: Next-gen 100G/400G+ optical transceivers, OTDR equipment, and 50GHz RF test modules.

FIS designs precision fiber optic tools, requiring ultra-low-loss PCBs to maintain signal integrity at millimeter-wave frequencies (up to 50GHz). Their challenges include:

Insertion loss degrading high-speed signals (>40Gbps).

Impedance mismatches causing reflection noise.

Thermal expansion leading to microvia cracking in compact designs.

PCB Assembly

Distributed Rooftop Solar System in a U.S. Manufacturing Plant – High-Efficiency MPPT Solar Controller PCBA Case Study

Project Background A manufacturing plant in California sought to reduce electricity costs through a distributed rooftop solar system while enhancing its green and sustainable corporate image. With ample rooftop space available, the company required a highly efficient MPPT solar controller capable of maximizing solar energy utilization and ensuring stable operation. ⚡The Role of PCBA Technology […]

Engineering Technology

Optimizing Small Wind Turbine Inverters: Enhancing Stability & Reliability

Optimizing Small Wind Turbine Inverters: Enhancing Stability & Reliability Customer Background & Market Demand Germany is a global leader in renewable energy, with its Energiewende (energy transition) policy driving widespread adoption of distributed wind power for rural electrification, industrial parks, and off-grid energy solutions. Small Wind Turbines (SWTs) have become an essential power supply option […]

PCB Manufacturing PCB Assembly PCB Design/Layout

KKPCB Case Study: High-Performance Communication Backplane PCB Solution

The customer is a globally leading manufacturer of communication equipment, specializing in the development and production of large-scale routers, switches, servers, and high-speed networking devices. As modern network communications demand increasingly high signal integrity, reliability, and thermal stability, the customer required an 18-layer PCB with low-loss material (S1000-2M) and advanced immersion gold plating to ensure stable signal transmission and long-term reliability

PCB Manufacturing Engineering Technology
PCB Mounting Holes

Should You Use Plated or Unplated PCB Mounting Holes?

When designing a PCB, one of the critical decisions you’ll face is whether to use plated or unplated mounting holes. These holes are essential for securing the PCB to an enclosure or package, but the choice between plated and unplated holes depends on your design requirements, grounding needs, and mechanical considerations. Let’s explore the differences, advantages, and best practices for each type.

PCB Design/Layout PCB Manufacturing
PCB Resistors and Board Design

PCB Resistors and Board Design

PCB resistors are designed to be mounted and soldered to printed circuit boards; they control current flow and divide voltages, among other things.  PCB resistors come in many shapes and sizes, but they’re all designed to fit easily into board layouts. They have two terminals that can be soldered to the conductive traces on the PCB so they can be connected electrically to the rest of the circuit. 

PCB Manufacturing
Flexible PCBs

Flexible PCBs: Ductility in Circuitry

It wasn’t long ago that rigid circuit boards were the only possible electronic system method available. Whether it was entertainment or industrious, the shape of most devices was an extension of an intractable rigid board. More recently, the tide has turned: as technology has developed and matured, the enclosure is shaping the electronics inside them. Despite additional manufacturing challenges, flexible PCBs (or flex printed circuits) are enticing to product designers due to a nearly unlimited range of possibilities compared to rigid board constraints.

PCB Assembly
through-hole and surface-mount

Through-Hole Pad Design for PCB Durability

In printed circuit board (PCB) design, copper pads are points for attaching components with soldering. These pads come in two primary types: through-hole and surface-mount (SMD). Through-hole pads are designed for components with leads that are inserted through the pad’s holes and soldered on the opposite side of the board. This method ensures a mechanical and electrical bond between the component and the PCB, beneficial for long-term reliability. Read on as we discuss through-hole pad design.