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Ceramic Quad Flat No-Lead (CQFN)

Ceramic Quad Flat No-Lead (CQFN)

Compact leadless design with ultra-low inductance, ideal for RF and high-frequency applications.

The ceramic four-side no-pins package (CQFN) is a hallmark of miniaturization in semiconductor packaging. It replaces conventional long pins with a direct connection via a bottom pad, enabling a compact and lightweight design while optimizing signal transmission.
The ceramic four-side pinless package is designed for precision equipment with limited space, supporting high-speed AD/DA converters, DDS frequency synthesizers, and other components. It also finds applications in critical modules such as surface acoustic wave devices, RF, and microwave systems. Additionally, for Hall effect devices, miniature optocouplers, and highly integrated discrete units, the CQFN serves as a reliable protection carrier.

Available materials: alumina, aluminum nitride, low-temperature sintered ceramics, high-temperature sintered ceramics, tungsten-manganese or molybdenum-manganese thick-film metallization.
Applications: Semiconductor & Electronics, Medical Devices, Energy & Power, Equipment & Machinery
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Product Introduction

Product Description

 

The ceramic four-side no-pins package (CQFN) is designed for compact size and high performance. Its no-pins design effectively reduces parasitic interference, ensuring stable operation in high-frequency signal environments such as RF and microwave applications, making it an ideal choice for high-speed circuit packaging. Crafted from high-performance ceramic material, the package features rapid heat dissipation, high-temperature resistance, and superior air-tight protection to effectively resist external moisture and corrosion, enabling long-term stable operation of internal core components. Additionally, the product offers excellent compatibility with PCB boards, easy installation, and outstanding durability. We provide comprehensive solutions from material selection to structural design, professionally addressing various electronic packaging challenges.

 

 

Features

  • Superior high-frequency impedance control capability
  • Low thermal resistance path
  • Lead-free structure eliminates parasitic resonance
  • High reliability with air-sealed packaging
  • Excellent CTE matching
  • Supports high-density interconnects and integration
  • High insulation performance
  • Low resistivity
  • Excellent corrosion resistance
  • High moisture resistance
  • Low thermal expansion coefficient

 

Main Model Table (mm)

 

CQFN packaging offers material options including HTCC, LTCC, Alumina, and Aluminum Nitride, featuring professional thick-film metallization to ensure superior solder strength and conductivity.

 

Product Model

Ceramic Body Size

Lead Pitch

Sealing Area

Die Attach Area

Total Thickness

CQFN72-01

10.00×10.00×1.50

0.5

9.80×9.80

6.40×6.40

1.5

 

 

Ceramic Expertise

 

Tessvida is a Total Kit Solutions (TKS) specialist, serving key industries: semiconductor & electronics, medical devices, FPD/LED, machinery, petrochemicals, auto & Transportation, energy & power, and food & agriculture. With a mature supply chain and advanced processes (isostatic pressing, gel casting, dry pressing), we offer end-to-end capabilities from material preparation, molding, sintering to precision machining and post-processing.

Backed by deep expertise in high-purity ceramics and strong resource integration, our flexible custom services precisely meet customer needs from material selection to finished product delivery.

 

 

Ceramic Production Process

 

High-Temperature

Powder Preparation

Raw material powder preparation, spray granulation (mixing, mechanical ball milling, spray drying)

01

Powder Forming

Powder Forming

Isostatic pressing, dry pressing, injection molding, gel forming, casting, hot pressing

02

Powder Preparation

High-Temperature Sintering

Atmospheric sintering, vacuum sintering, controlled atmosphere sintering

03

Precision Processing

Precision Processing

Cutting, turning, grinding, milling, shaping, drilling

04

Surface Treatment

Surface Treatment

Cleaning, arc melting, plasma spraying, electrostatic spraying, vapor deposition, ultra-clean cleaning, anodizing, metallization composite

05

 

 

Precision Ceramic Processing Workflow

 

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    Material Preparation

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    Material Forming

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    Sintering

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    Fine Machining

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    Inspection

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    Precision Cleaning

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    Vacuum Packing

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    Material Preparation

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    Material Forming

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    Sintering

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    Fine Machining

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    Inspection

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    Precision Cleaning

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    Vacuum Packing

 

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