استكشاف تطبيقات الليزر الأزرق في تصنيع MLCP: التحديات والفرص

MLCP (Microchannel Liquid Cooling Plate) is quickly becoming the new frontier in AI chip thermal management. But manufacturing these micro-structured copper components remains a major bottleneck. Could blue lasers help change that?

While not yet widely adopted, blue lasers are being explored as a potential tool for high-precision MLCP 3D printing. Vivlaser is currently investigating their feasibility in metal additive manufacturing.

As MLCP reshapes how we cool high-performance chips, new demands are emerging on the tools needed to build these microfluidic structures. Among these tools, blue lasers are gaining interest—not as the main character, but as a promising technical supporting role.

What Is MLCP? And Why Is It Becoming the Go-To Solution for AI Chip Cooling?

AI chips consume more power than ever. Traditional air cooling is outdated, and even liquid cold plates are hitting limits.

MLCP (Micro Liquid Cooling Plate¹) is a liquid cooling technology integrated directly into the chip package. It embeds micron-sized flow channels in the metal cover or substrate, allowing coolant to flow directly over the chip’s heat source, drastically reducing thermal resistance² and boosting heat exchange.

MLCP Structure and Cooling Mechanism

• Ultra-fine flow channels: Typically under 100μm wide, thinner than a hair.

• Source-contact cooling: Coolant flows directly over the chip, bypassing interface layers.

• Integrated construction: Channels are built into chip lids or substrates.

• Pumped system: Coolant is forced through channels at high speed to carry away heat.

MLCP vs Traditional Liquid Cooling

ميزة	Traditional Liquid Cooling	MLCP Technology	Analogy
Heat Path	Indirect, via thermal interfaces	Direct, coolant contacts heat source	Ice pack vs. IV injection
Channel Size	>0.3مم	<100ميكرومتر	Highway vs. Capillary
Cooling Efficiency	معتدل	3–5× higher	Fan vs. Industrial blower
Thermal Resistance	0.03–0.05℃·cm²/W	<0.015℃·cm²/W	Thick coat vs. Cold plunge

Why AI Chips Must Embrace MLCP

• Next-gen chips like Blackwell/MI300 exceed 2000W

• Chip sizes stay constant → heat flux > 1kW/cm²

• Air and contact cooling can’t handle the heat anymore

How Are MLCPs Made? Why Is 3D Printing the Breakthrough?

MLCP sounds great—but it’s extremely difficult to manufacture. How do you carve out dozens of micron-wide channels in metal?

Traditional methods like etching and brazing are expensive and prone to leaks. 3D printing³—especially laser-based metal additive manufacturing⁴—is now the leading alternative.

MLCP Manufacturing Method Comparison

طريقة	المزايا	العيوب
Etching + Brazing	دقة عالية, proven tech	Expensive, leakage risks, complex structure
Micro-Extrusion / Stamping	Low cost, قابلة للتطوير	Limited channel complexity
Metal 3D Printing	One-piece design, complex shapes	Low speed, material processing challenges

Why Laser-Based 3D Printing Suits MLCPs

• Enables micro-scale structures <100ميكرومتر

• One-piece sealed design avoids leaks

• Supports complex, custom flow layouts (Z-shaped, wave, biomimetic)

Copper Is Hard to Print—Why Blue Lasers Are Worth Exploring

Copper is thermally excellent but hard to process. Infrared lasers reflect off it almost entirely.

الليزر الأزرق⁵ have shorter wavelengths and higher energy density. Their absorption in copper is far better than infrared lasers, making them an interesting candidate for MLCP printing⁶.

Laser Wavelength vs. امتصاص النحاس

الطول الموجي	Copper Absorption Rate	Typical Use
Infrared (1064نانومتر)	<10%	Common fiber lasers, poor on copper
Green (515نانومتر)	~30%	Moderate performance
أزرق (450نانومتر)	>40%	Best for copper processing

Why Blue Lasers May Be Suitable for MLCP 3D Printing

• Higher absorption → more efficient melting of copper

• Shorter wavelength → higher resolution

• Potential compatibility with next-gen metal printers

What Role Does Vivlaser Play in This Landscape?

Vivlaser is not producing MLCPs, but it is closely watching this manufacturing trend.

As a supplier of high-power blue lasers, Vivlaser is currently researching their application in the 3D printing of copper-based MLCP structures. This work remains experimental, but reflects a growing industry interest.

Vivlaser Blue Laser Core Specs

المعلمة	Typical Values
الطول الموجي	445–455nm
طاقة الإخراج	50W–300W per module
جودة الشعاع	M² < 5, multimode optimized
Focus Spot Size	<50ميكرومتر
نظام التبريد	TEC + Water
Operation Mode	CW or Pulsed

Built for Research, Adaptable for Integration

• Compact laser modules for OEMs

• Multi-fiber configurations possible

• Designed for thermal stability and long service life

خاتمة

MLCP technology is reshaping the future of chip cooling. Blue lasers are not the main character—but they may soon become an important tool in how we manufacture the coolers of tomorrow. Vivlaser is paying attention—and building toward that future.

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