QFN Package Introduction
Quad Flat No-lead package technology with excellent electrical and thermal performance
Package overview
QFN (Quad Flat No-lead) packaging is a surface mount technology packaging form, also known as quad flat no-lead packaging. It features metal terminals on four or two sides, suitable for low to medium pin count integrated circuits. QFN packaging has a large heat spreader on the bottom that can be directly soldered to the PCB, greatly improving thermal performance while being small in size, lightweight, and highly reliable.
Product Features
Chip packaging features various sizes with multiple pads at the bottom. Chips can be directly connected to heat sinks to achieve excellent heat dissipation, improving chip operating stability and reliability. Features automation-friendly production characteristics.
Multiple Size Compatibility
Chip packaging accommodates various sizes, providing design flexibility for different application requirements
Excellent Heat Dissipation
Multiple bottom pad design allows chips to directly connect to heat sinks for excellent heat dissipation
Stable and Reliable
Excellent thermal performance improves chip operating stability and reliability
Automation Friendly
Features automation-friendly production characteristics, improving manufacturing efficiency
Process Capability
| Parameter | Specification |
|---|---|
| Package Form | Stacked Die Package |
| Process Mode | Secure Wire Arc and Chip Interconnection Process |
| Product Thickness | 0.35mm / 0.4mm / 0.45mm / 0.50mm / 0.55mm / 0.75mm / 0.85mm / 1.0mm |
Specifications
Package size: 1.0*1.0~9*9mm
| Serial No. | Model | Pin Count | Size(mm) | Thickness(mm) | Pin Pitch | Pin Width(b)mm | Pin Length(L)mm | E-PAD Size | LF-PAD Size | Frame Thickness(mm) | Test Capability | Frame Available | Default Packaging |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | QFN16L(2.5×2.5×0.75-P0.4) | 16L | 2.5×2.5 | 0.75 | 0.4 | 0.2 | 0.35 | 1.4×1.4 | 1500×1500 | 0.203 | TAPE | ||
| 2 | QFN16L(3×3×0.75-P0.5) | 16L | 3×3 | 0.75 | 0.5 | 0.25 | 0.4 | 1.7×1.7 | 75×75 | 0.203 | Y | Y | TAPE 1905×1905 |
| 3 | QFN16L(4×4×0.75-P0.65) | 16L | 4×4 | 0.75 | 0.65 | 0.25 | 0.4 | 2.6×2.6 | 114×114 | 0.203 | Y | Y | TRAY 2900×2900 |
| 4 | QFN16L(4×4×0.75-P0.65)C | 16L | 4×4 | 0.75 | 0.65 | 0.3 | 0.55 | 2.2×2.2 | 100×100 | 0.203 | Y | Y | TRAY 2540×2540 |
| 5 | QFN16L(4×4×0.75-P0.65)C2 | 16L | 4×4 | 0.75 | 0.65 | 0.3 | 0.55 | 2.1×2.1 | 98×98 | 0.203 | Y | Y | TRAY 2500×2500 |
| 6 | QFN20L(3×3×0.5-P0.4) | 20L | 3×3 | 0.5 | 0.4 | 0.2 | 0.35 | 1.7×1.7 | 81×81 | 0.127 | Y | Y | TAPE 2046×2046 |
| 7 | QFN20L(3×3×0.5-P0.4) | 20L | 3×3 | 0.5 | 0.4 | 0.2 | 0.35 | 1.65×1.65 | 80×80 | 0.127 | Y | Y | TAPE 2040×2040 |
| 8 | QFN20L(3×3×0.75-P0.4) | 20L | 3×3 | 0.75 | 0.4 | 0.2 | 0.4 | 1.65×1.65 | 75×75 | 0.203 | Y | Y | TAPE 1900×1900 |
| 9 | QFN20L(3×3×0.75-P0.4)C | 20L | 3×3 | 0.75 | 0.4 | 0.2 | 0.25 | 1.9×1.9 | 85×85 | 0.203 | Y | Y | TAPE 2200×2200 |
| 10 | QFN20L(3.5×4.5×0.75-P0.5) | 20L | 3.5×4.5 | 0.75 | 0.5 | 0.25 | 0.4 | 2.05×3.05 | 94×134 | 0.203 | Y | 无TRAY 2400×3400 | |
| 11 | QFN20L(4×4×0.75-P0.5) | 20L | 4×4 | 0.75 | 0.5 | 0.25 | 0.4 | 2.65×2.65 | 114×114 | 0.203 | Y | Y | TAPE 2900×2900 |
| 12 | QFN24L(3×4×0.5-P0.4) | 24L | 3×4 | 0.5 | 0.4 | 0.2 | 0.35 | 1.8×2.8 | 80×120 | 0.152 | Y | Y | TRAY 2040×3040 |
| 13 | QFN24L(4×4×0.5-P0.5) | 24L | 4×4 | 0.5 | 0.5 | 0.25 | 0.3 | 2.8×2.8 | 124×124 | 0.127 | Y | Y | TRAY 3150×3150 |
| 14 | QFN24L(4×4×0.75-P0.5) | 24L | 4×4 | 0.75 | 0.5 | 0.25 | 0.4 | 2.7×2.7 | 114×114 | 0.203 | Y | Y | TRAY 2900×2900 |
| 15 | QFN28L(4×4×0.75-P0.4) | 28L | 4×4 | 0.75 | 0.4 | 0.2 | 0.4 | 2.65×2.65 | 110×110 | 0.203 | Y | Y | TRAY 2800×2800 |
| 16 | QFN28L(4×4×0.75-P0.4)C | 28L | 4×4 | 0.75 | 0.4 | 0.2 | 0.4 | 2.6×2.6 | 110×110 | 0.203 | TRAY 2800×2800 | ||
| 17 | QFN28L(4×4×0.75-P0.45) | 28L | 4×4 | 0.75 | 0.45 | 0.23 | 0.35 | 2.6×2.6 | 118×118 | 0.203 | Y | Y | TRAY 3000×3000 |
| 18 | QFN32L(4×4×0.5-P0.4) | 32L | 4×4 | 0.5 | 0.4 | 0.2 | 0.4 | 2.65×2.65 | 114×114 | 0.127 | Y | Y | TRAY 2900×2900 |
| 19 | QFN32L(4×4×0.75-P0.4) | 32L | 4×4 | 0.75 | 0.4 | 0.2 | 0.35 | 2.7×2.7 | 118×118 | 0.203 | Y | Y | TRAY 3000×3000 |
| 20 | QFN32L(5×5×0.75-P0.5) | 32L | 5×5 | 0.75 | 0.5 | 0.25 | 0.4 | 3.5×3.5 | 149×149 | 0.203 | Y | Y | TRAY 3800×3800 |
| 21 | QFN39L(6×6×0.75-P0.4) | 39L | 6×6 | 0.75 | 0.4 | 0.2 | 0.4 | 4.60×3.75 | 152×185 | 0.203 | Y | Y | TRAY 3850×4700 |
| 22 | QFN40L(5×5×0.5-P0.4) | 40L | 5×5 | 0.5 | 0.4 | 0.2 | 0.4 | 3.4×3.4 | 150×150 | 0.127 | Y | Y | TRAY 3820×3820 |
| 23 | QFN40L(5×5×0.75-P0.4) | 40L | 5×5 | 0.75 | 0.4 | 0.2 | 0.4 | 3.7×3.7 | 149×149 | 0.203 | Y | Y | TRAY 3800×3800 |
| 24 | QFN40L(5×5×0.75-P0.4)C | 40L | 5×5 | 0.75 | 0.4 | 0.2 | 0.4 | 3.3×3.3 | 150×150 | 0.203 | TRAY 3800×3800 | ||
| 25 | QFN40L(5×5×0.75-P0.4)U | 40L | 5×5 | 0.75 | 0.4 | 0.2 | 0.4 | 3.7×3.7 | 118×118 | 0.203 | Y | Y | TRAY 3000×3000 |
| 26 | QFN48L(6×6×0.5-P0.4) | 48L | 6×6 | 0.5 | 0.4 | 0.2 | 0.4 | 4.2×4.2 | 195×195 | 0.127 | Y | Y | TRAY 4953×4953 |
| 27 | QFN48L(6×6×0.75-P0.4) | 48L | 6×6 | 0.75 | 0.4 | 0.2 | 0.4 | 4.6×4.6 | 185×185 | 0.203 | Y | Y | TRAY 4700×4700 |
| 28 | QFN48L(6×6×0.75-P0.4)C | 48L | 6×6 | 0.75 | 0.4 | 0.2 | 0.4 | 4.05×4.05 | 189×189 | 0.203 | Y | Y | TRAY 4800×4800 |
| 29 | QFN48L(7×7×0.75-P0.5) | 48L | 7×7 | 0.75 | 0.5 | 0.25 | 0.45 | 5.3×5.3 | 185×185 | 0.203 | Y | Y | TRAY 4700×4700 |
| 30 | QFN56L(4×6×0.5-P0.3) | 56L | 4×6 | 0.5 | 0.3 | 0.15 | 0.4 | 2.56×4.56 | 117×195 | 0.127 | Y | Y | TRAY 2972×4953 |
| 31 | QFN56L(8×8×0.75-P0.5) | 56L | 8×8 | 0.75 | 0.5 | 0.25 | 0.4 | 6.65×6.65 | 226×226 | 0.203 | TRAY 5750×5750 | ||
| 32 | QFN62L(6×6×0.5-P0.35) | 62L | 6×6 | 0.5 | 0.35 | 0.15 | 0.25 | 4.9×4.9 | 205×205 | 0.127 | Y | Y | TRAY 5200×5200 |
| 33 | QFN64L(7.5×7.5×0.75-P0.4) | 64L | 7.5×7.5 | 0.75 | 0.4 | 0.2 | 0.4 | 6.20×6.20 | 252×252 | 0.203 | Y | Y | TRAY 6400×6400 |
| 34 | QFN70L(9×9×0.75-P0.4) | 70L | 9×9 | 0.75 | 0.4 | 0.2 | 0.5 | 6.2×6.2 | 303×264 | 0.203 | TRAY 7700×6700 | ||
| 35 | QFN80L(9×9×0.75-P0.4) | 80L | 9×9 | 0.75 | 0.4 | 0.2 | 0.5 | 7.2×7.2 | 303×303 | 0.203 | Y | Y | TRAY 7700×7700 |
Application Range
Security chips, automotive electronics, medical device electronics, digital video, RF, data acquisition, level converters, inverters, general-purpose MCUs, automotive audio processors, power management chips, etc.
Security Chips
Chip solutions for encryption, authentication and secure storage
Automotive Electronics
Vehicle control systems and automotive electronic equipment
Medical Device Electronics
Electronic components in medical monitoring and diagnostic equipment
Digital Video
Video processing and transmission equipment
RF Applications
Wireless communication and RF signal processing
Power Management Chips
Power control and management solutions
Need Customized QFN Packaging Solutions?
DingXin Microelectronics provides comprehensive QFN customization services, from product design, material selection to production testing, meeting your specific needs. Our engineering team will provide professional consultation and technical support.