High Tg PCBs
High Tg PCBs: A Comprehensive Guide
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In today’s world, the demand for high-performance electronic devices is at an all-time high. To meet these demands, High Tg PCBs have been developed, offering the capability to endure elevated temperatures and power levels. These specialized PCBs are increasingly utilized in applications and devices that require superior performance and power output. This detailed guide provides insights into High Tg PCBs, including their composition, benefits, challenges, and applications in modern electronics.
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Why Choose LEAPPCB's High Tg PCB Service?
Manufacturing and assembling High Tg PCBs, which are critical for effective temperature management, is a complex and precise process. This presents significant challenges for manufacturers. High-quality High Tg PCBs require advanced equipment, cutting-edge manufacturing technology, and a professional team that can monitor production in real-time. Therefore, it’s essential to choose your High Tg PCB supplier carefully. LEAPPCB, a leading High Tg PCB manufacturer in China with over 16 years of experience, offers the following benefits:
- Comprehensive Quality Control
- Exceptional After-Sales Service
- Customer-Focused Customized Solutions
- Competitive and Transparent Quotations
- Personalized Technical Consulting Services
- Flexible Order Quantities, Including Single-Piece Orders
If you have any questions about High Tg PCBs, feel free to consult with our expert technical team.
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Leap Electronic is your trusted partner and one-stop shop for PCB fabrication, component sourcing, PCB assembly, and electronic manufacturing. With over 16 years of expertise, we proudly serve over 1000 customers worldwide, delivering top-quality PCBs at competitive prices. Our ISO9001:2015 certification and UL listing ensure that all our products meet the highest industry standards. Every PCB is 100% E-tested and inspected using AOI and X-RAY, guaranteeing unparalleled reliability and performance.
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Everything You Need to Know About High Tg PCBs
“Tg” stands for Glass Transition Temperature. It represents the highest temperature at which the resin within the PCB can maintain its solid state.
High Tg PCBs are circuit boards designed with a higher glass transition temperature. The “Tg” is the point at which the PCB material shifts from a solid to a more rubbery state. Generally, a Tg above 150°C is classified as high.
- Enhanced Temperature Resistance: High Tg PCBs can withstand higher temperatures without degrading.
- Improved Durability: These PCBs offer superior resistance to heat, humidity, chemicals, and thermal stress.
High Tg PCBs are widely employed across various industrial sectors, including:
- Power and Energy
- Automotive
- Industrial Equipment
- Computers
- Communication Equipment
- Precision Instruments and Meters
- LED Lighting Industry
- Gateways
- Radio Frequency Identification (RFID)
- Inverters
- Antenna Boards
- Wireless Boosters
- Embedded System Development
- Embedded Computer Systems
- AC Power Supplies
The manufacturing process for High Tg PCBs is similar to that of standard PCBs. The process generally involves:
Sheet Cutting → Outer Layer Copper Processing → Lamination → Drilling → Plated Through Hole → Exposure → Development → Pattern Plating → De-filming → Etching → De-tinning → AOI Inspection → Solder Mask → Silkscreen → Surface Finish → V-cut → Cleaning → Testing → Packaging
High Tg PCBs are typically more expensive to produce than standard printed circuit boards due to the specialized materials and processes involved.
When designing High Tg PCBs, it’s crucial to consider factors such as material costs, circuit board layout, and high-temperature requirements.
Common testing methods for High Tg PCBs include:
- Electrical Testing
- Automated Optical Inspection (AOI)
- Visual Defects Inspection
- Solderability Testing
- Thermal Testing
- Tape Test (Adhesion Test)
- Peel Test (Conductor Peel Strength)
- Ionic Contamination Test
At LEAPPCB, a comprehensive series of quality control measures are implemented for all products, including High Tg PCBs. These include:
- DFM (Design for Manufacturing) Checks
- IQC (Incoming Quality Control) for all materials
- Micro-Section Inspections
- Electrical Testing for Open/Short Circuits
- Automated Optical Inspection (AOI)
- Visual and Mechanical Inspection after each process
- First Article Inspection
- Solderability Testing
- Thermal Testing
- Tape Test (Adhesion Test)
- Peel Test (Conductor Peel Strength)
- Ionic Contamination Test
- Inspections according to IPC-A-600 Class 2 and IPC Class 3 standards
- TDR Impedance Testing
- Hi-Pot (High Potential) Testing
- Any additional tests required by customers
Key factors influencing the cost of High Tg PCBs include:
- Base Material
- PCB Dimensions
- Number of Layers
- Copper Layer Thickness
- Overall PCB Thickness
- Layer Structure
- Surface Treatment
- Specialized Technologies (e.g., blind and buried vias, via plugging, countersink holes)
The lifespan of a High Tg PCB depends on factors such as material quality and operating conditions. Typically, the shelf life of a bare PCB is 1-3 years, while the usage lifespan can exceed 10 years.
High Tg printed circuit boards are generally more expensive than standard Tg PCBs. For instance, standard FR4 material with a Tg of 135°C is more affordable, while FR4 with Tg150 is about 10% more expensive, FR4 with Tg170 is 20% more expensive, and FR4 with Tg180 can be around 30% more expensive.
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