In today’s demanding semiconductor manufacturing field, ODAKE UV Conformal Coating (also known as UV conformal coating) has become a key material for protecting chips from environmental damage. This article details the UV+moisture dual-cure technology of the ODAKE CT8608 model—a high-performance solution designed for semiconductor conformal coating applications, capable of meeting all the stringent requirements of modern electronics manufacturing for protective coatings.

What are UV Conformal Coating and UV Conformal Coating?
UV Conformal Coating and UV conformal coating are commonly used protective coating materials in the electronics industry, mainly for protecting printed circuit boards (PCBs) and semiconductor components. These coatings form a thin film to shield electronic components from moisture, dust, chemicals, and mechanical stress.

Compared to traditional conformal coatings, ODAKE UV Conformal Coating adopts an innovative UV+moisture dual-cure mechanism: rapid surface curing under UV light (only 6–9 seconds), followed by deep, complete curing through ambient moisture. This dual-cure design ensures uniform and complete coverage even in complex geometries and shadowed areas.

Core Advantages of ODAKE CT8608 UV Conformal Coating

1. UV+Moisture Dual-Cure Technology
   ODAKE CT8608 features an advanced UV+moisture dual-cure system, combining the dual advantages of UV rapid curing and moisture deep curing. This technology is particularly suitable for semiconductor conformal coating applications because it enables:

• UV curing: Surface curing in just 6–9 seconds under 6–8W LED light

• Moisture curing: Complete curing in approximately 7 days at 25°C/75% RH

• No shadow areas: Moisture curing ensures complete curing even in UV-unexposed areas

2. Excellent Protective Performance
   As a professional semiconductor conformal coating, CT8608 provides multiple protections:

• Salt spray resistance: ≥240 hours without corrosion (passes 5% NaCl test)

• High-temperature/humidity resistance: ≥500 hours without abnormalities at 85°C/85% RH

• Electrical insulation: Dielectric strength ≥30 KV/mm, volume resistivity 4×10¹³ Ω·cm

• Chemical resistance: Resistant to acids, alkalis, and solvents, protecting chips from chemical erosion

3. Process-Friendly Features

• Bubble-free spraying: Moderate viscosity (83–89 mPa·s) ensures bubble-free spraying

• Fluorescence indicator: Contains fluorescent components for easy inspection under UV light

• Multiple application methods: Supports spraying, brushing, dipping, and other processes

4. Environmental and Safety Benefits

• Solvent-free design: Fully compliant with environmental requirements

• RoHS and REACH certified: Meets international environmental standards

• Low odor: No irritating odor during operation

Detailed Key Performance Parameters
Based on TDS technical data, the main technical parameters of ODAKE CT8608 include:

Application Areas
ODAKE UV Conformal Coating is widely applicable in the following fields:

1. Semiconductor chip protection: Packaging protection for various ICs, microprocessors, and memory chips

2. Automotive electronics: Engine control units, sensors, in-car entertainment systems

3. Industrial control: PLCs, industrial computers, automation equipment control boards

4. Consumer electronics: Smartphones, tablets, wearable devices

5. Medical equipment: Medical monitoring devices, diagnostic instrument electronic modules

6. Communication equipment: Base station equipment, network equipment, communication modules

Real-World Application Case: Semiconductor Chip Protection
In an actual application at a well-known semiconductor manufacturer, ODAKE CT8608 UV Conformal Coating was used as a protective coating for high-end microprocessors. The customer’s main requirements included:

• The protective coating must not affect the chip’s heat dissipation performance

• Uniform coverage is required at chip edges and pins

• Must pass strict salt spray and high-temperature/humidity tests

• Fast curing on the production line to accommodate high-efficiency production

By using ODAKE CT8608, the company achieved:

• Coating qualification rate increased from 92% to 99.5%

• 100% pass rate in salt spray testing

• High-temperature/humidity testing time reduced from the traditional 168 hours to 72 hours

• Production efficiency improved by 30%

Application Process Guidelines

1. Surface Preparation
   Before using ODAKE UV Conformal Coating, ensure the substrate surface is clean and dry. It is recommended to use isopropanol or specialized cleaners to remove oil, dust, and flux residues. For more information on cleaner selection, refer to our [PCB Surface Treatment Guide].

2. Coating Process

• Spraying: Recommended spray gun nozzle diameter 0.3–0.5 mm, pressure 2–3 bar, distance 15–20 cm

• Brushing: Suitable for small batches or repair work; use a soft brush for even application

• Film thickness control: Recommended dry film thickness 25–50 μm; excessive thickness may affect curing

3. Curing Process

• Initial UV curing: Use 6–8W LED UV light, distance 5–10 cm, exposure 6–9 seconds

• Complete moisture curing: Place in an environment of 25°C/75% RH for 7 days

• Quality inspection: Check fluorescence uniformity under 365 nm UV light

4. Precautions

• Avoid application at temperatures below 15°C or humidity below 40% RH

• Use promptly after opening to avoid moisture absorption affecting performance

• Wear protective goggles and gloves during operation

Technical Comparison: ODAKE CT8608 vs. Traditional Conformal Coatings

Frequently Asked Questions
Q1: What are the storage conditions for ODAKE UV Conformal Coating?
A: It is recommended to store sealed in a dark, dry environment at 20–25°C. Use promptly after opening. Shelf life is 12 months.

Q2: How to determine if the coating is fully cured?
A: You can determine this by: 1) Touch test: Surface is non-tacky; 2) Solvent wipe test: No dissolution when wiped with isopropanol; 3) Hardness test: Shore D hardness reaches 55.

Q3: What substrates is CT8608 suitable for?
A: Suitable for FR4 PCBs, ceramic substrates, metal substrates, plastic substrates, and other materials. Compatible with common solder and no-clean solder paste.

Q4: How to avoid bubbles during spraying?
A: Recommendations: 1) Control spraying distance and pressure; 2) Avoid repeatedly spraying the same area; 3) Let the coating settle to remove bubbles before application; 4) Control ambient humidity at 40–70% RH.

Conclusion
ODAKE UV Conformal Coating, especially the CT8608 model, sets a new standard in the semiconductor conformal coating field with its innovative UV+moisture dual-cure technology. It not only addresses the incomplete curing in shadow areas of traditional UV conformal coatings but also meets the dual requirements of environmental protection and performance in modern electronics manufacturing through its solvent-free design and environmental certifications.

Whether facing harsh salt spray environments, high-temperature/humidity challenges, or high-efficiency production demands, ODAKE UV Conformal Coating provides reliable, long-lasting protective solutions. For engineers and manufacturers seeking high-quality chip protection coatings, ODAKE CT8608 is undoubtedly an excellent choice worth considering.