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Latest update: 26/02/2020 10:25:09

TDC Corporation

Our ultra high precision mirror polish machining achieves surface roughness of Ra 1nm or less on any material or shape. 

Our ultra precise mirror polishing technology plays a key role in manufacturing of a variety of precision components.  We have a track record in 12 countries across the globe, and have provided many customers with this essential technology for research and development to enhance the accuracy of semiconductor manufacturing devices and precision equipment.


[Product description] Our core technology lies in ultra precise mirror surface polishing technology. From highly precise mirror surfaces you can obtain flat surfaces. In a 100 φ area, the flatness will be 30 nano. After one surface is successfully produced with this flatness, then the other side and pallallelism will be secured. This will eliminate variance in measurement, and measurement, dimensional, thickness, or step tolerances can be assured within +/-100 nano (0.1 micron) . Tilted surfaces can also make up angles. Like this, our processing technologies are based on lapping, in which we achieve ultra high precision at the 100 nano level by shaving off higher points first and meticulously. We can apply this to curved, cylindrical, and spherical surfaces, as well as foils and inside of pipes. The level of precision is still improving, and it is now as precise as 0.1 micron (100 nanometers). Our technologies have been used by over 3000 customers across different industries including the auto, semiconductor, printing, optical, MEMS, aerospace, medical, electronic parts, and nano technology industries, as well as research institutes and universities. [Market share/Ranking] These are our unique technologies with processing precision at a level that cannot be replicated by others. [Major facilities and equipment] 80 single-sided lapping machines, 15 dual-sided lapping machines, Mitsutoyo LEGEX 9106 three-dimensional measuring machine, Taylor Hobson Talysurf CCI 3000 shape and surface roughness measuring machine, Taylor Hobson Talyrond 365 circularity measurement machine, among others

[Product description] Roller outer surface mirror polishing technology. Our ultra precise polishing technologies achieve nano level surface roughness while sustaining measurement precision and a perfect circle. Do you happen to have problematic scratches on undercoat before forming fine patterns for transfer rolls? For example, with regards to mirror polishing on the outer side of roll shafts, we can achieve surface roughness of Ra 1.5nm~, a higher level of mirror finishing property! We handle one roll to mass production for quantity, and up to 3 meters in size. Our past record: φ500 – 3000mm [Materials] Stainless steel, titanium, aluminum, glass, silicon and other coated surfaces with nickel, chrome, hard chrome plating, and other materials can be handled. Please consult us for detail.

[Product description] This ultra precise mirror polishing technology is one of our core technologies: With this, we can achieve nanometer order surface roughness, high precision geometric tolerances including submicron flatness, parallelism and angle tolerances. It is compatible with a variety of materials including metals, ceramics, crystalline materials and resins. We accept orders from single piece to mass production. [Materials that can be handled] Metals: Steel, hard metals, stainless steel, copper, titanium, aluminum, tungsten, molybdenum, nickel, tantalum, and others Ceramics: Alumina, zirconia, sapphire, silicon, silicon carbide, silicon nitride (coated surfaces with thermal spraying can be polished as well) Crystalline materials: Glass materials, silicon, SiC, sapphire, GaN, and others Resins: Engineering plastics, polyimide, Teflon, and others [Processing precision] surface roughness Past examples: SUS304:Ra0.6nm、Rz10nm About Ra1mm is possible for almost all materials. Flatness: Past examples: Alumina ceramics φ100*5㎜ substrates flatness 0.1μm Stainless steelφ100*5㎜substrates flatness0.5μm Stainless steelφ300*8㎜substrates flatness1μm Parallelism: Past examples: Alumina ceramics φ100*5㎜ substrates flatness0.2μm Stainless steelφ100*5㎜ substrates flatness1μm Stainless steelφ300*8㎜ substrates flatness2μm Dimensional accuracy: below ±1μm

[Product description] Metal foil can be polished to an ultra precision mirror finish of Ra 1nm order surface roughness. This technology, developed by us, is compatible with a variety of materials including copper, stainless steel and nickel. [Surface roughness] Ra1nm Rz6nm(SUS304) [Length] Can be handled up to 100 m [Materials that can be handled] SUS304 brass, copper, titanium. Others are being added. This product is used in the MEMS nano technology area, as, for example, a base material for microscopic structure and nano graphene growth. When the metal foil is formed through subsequent processes such as etching, microscopic precision parts can be produced. The provision of ultra precision mirror surface in length has made mass production possible. [Intellectual property] Utility model acquired

[Product description] Our company offers spacers and shims with exceptional precision for ultra precise VE assembly. These spacers and shims of submicron precision facilitate accurate assembly with no backlash. Standard spec sizes make short turnaround possible. We also take orders for custom shapes and thicknesses, as requested by the customer.