Technology to manufacture ultra-fine micro/nano pattern metal core required mandatorily to improve the special functions of high-performance advanced products based on ultra-precision machining technologies (turning, planing, end milling, indentation machining) with nano-level precision.

 

Client / Market

• Advanced core components market such as optical elements for advanced display (LCD/LED, OLED, AR/VR) and solar energy, meta structure, hologram, optical lens and optical communication, high-performance core element for medical/bio and mechanical component

 

Necessity of this Technology

• The demand from various advanced industries for high performance ultra-precision fine patterned components are rapidly increasing. However, the foundation technologies of ultra-precision machining technology for fine pattern are weak to effectively handle such demands.
• To achieve with performance advancement of high-quality products and the demands for high-performance products required for next-generation advanced industries, a high-efficiency micro-pattern mold core machining technologies based on ultra-precision machining technology of nano level is required.

 

Technical Differentiation

• Possible to manufacture various high-quality, high-profile micro-pattern from a few dozen nanometers to a few hundred micrometers required depending on properties and functions of core devices.
• Possible to manufacture an ultra-precision micro-pattern mold core to cope with roll-to-roll process, injection molding, and press forming required for mass production of high-performance advanced products
• Possible to apply integrated machining technology such as micro/nano complex shapes and high-dimensional shapes and fabrication of micro-pattern having irregular shapes and arrangement that can be utilized for next-generation advance industries

 

Excellence of Technology

• Ultra-precision machining technology on large area micro pattern roll mold for optical film manufacturing.
  - The mold core for ultra-precision groove patterns, random stepped profile surface, lenticular patterns of several dozen nanometer to several dozen micrometer level for optical film manufacturing
  

  

• Ultra-precision indentation machining technology for irregular lens array patterned mold core to improve light diffusion property.
  - Irregular lens array machining technology with minimum diameter of 15 μm and maximum fill-factor of 50%
  - Light diffusion property improved up to 12 times
  

  

• Ultra-precision cutting technology with 3-directional crossing micro pattern largearea mold core for high-brightness retro-reflection property
  - Intersecting point error within 1 μm, pattern shape error within 1 μm
  

  

• Mold core machining technology of micro pore lens array pattern for structural color revelation
  - Micro/nano patterning technology for structural color revelation using mechanical/chemical integration machining
  

  

• Array pattern machining technology for aspheric, high aspect ratio paraboloid condensing lens mold
  - Solar energy short-circuit current density enhanced by 10% with increased lightharvesting effect
  

  

• Ultra-precision machining technology of micro slit array for a meta-surface
  - Ultra-precision micro slit array machining with shape error within 1 μm and position error within 1 μm
  - Realizing a meta-surface to converts longitudinal wave into transverse wave
• Micro end milling technology of optical patterns for realizing 3D image

 

Current Intellectual Property Right Status

PATENT

• Processing Method for Aspheric Light Guide Plate Mold (KR1630021)
• Method for Manufacturing Working Tool of Mold for Manufacturing Optical Film (KR1767311)
• Method for Designing Random Dot Pattern and Method for Manufacturing Lens Array Member (KR2017-0142784)
• Micro Pattern Machining Method Using Tool Angle Control (KR1474974)

KNOW-HOW

• Pattern forming roll machining system and micro pattern formation method
• Discontinuous micro pattern formation device using indenter and the method
• Micro wave pattern machining system and method
• Stepped shape, right/left or top/bottom direction micro pattern design and machining technology
• Cutting tool design technology for micro pattern machining/measurement analysis and performance evaluation technology of micro pattern