Photolithography Etching
Etching processing services : Photolithography, Dry/Wet etching

The semiconductor photolithography/etching fabrication service offered by Kyodo International decreases the R&D costs, lessens the burden of fabrication and increases the development speed for our customers.
We use wet etching, ion milling, RIE etching among many other technologies in order to answer your manufacturing requests about circuit patterning, test patterning, improvement of the surface conditions, test evaluation, process conditions control, etc.
Nowadays, in order to perform the needed processes for deep etching and nanoimprint mold manufacturing, we currently employ our ICP and D-RIE technologies. Furthermore, in addition to thin film formation and etching, we offer a wide range of micro-technology processes such as exposure, ashing among others.
Capable of providing photolithography, etching
Photolithography
- Contact aligner (maximum resolution 3µm)
- i-line stepper (maximum resolution 0.5µm)
- E-beam writing (maximum resolution 50nm)

Dry etching (RIE、ICP)
It is available of "Plasma resistance evaluation" of materials using dry etching equipment.

In addition to etching the substrate you provide, we also process photomask production and photolithography based on your CAD data.
We can also manufacture and deliver not only nanoimprint molds but imprinted products.
Wet etching (Acid, Alkaline,other)

Wet etching, resist stripping

Example of glass processing by wet etching

Example of oxide film sacrificial layer etching process
Photolithography - Etching
Material | Al, Cu, Au, Ag, ITO, etc. |
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Insulating layer | SiO2, SiN, etc. |
Resist pattern | Positive, negative, permanent resist, etc. |
MEMS processing | Three dimensional shape by isotropic – anisotropic etching |
Mold | Si, Quartz, resin, etc. |
Microfluidic chip | 2 liquid mixture, crossroads, meandering design, etc. |
Processing example (1) : 1µm pillar structure (aspect 17)

Process | Comments |
---|---|
Mask material | SiO2 |
Resist | Positive resist |
Exposure | Stepper |
Developing | TMAH 2.38% |
RIE etching | EXAM |
Resist stripping | Organic solvent |
ICP etching | SID-1246 |
Oxide removal | HF |
Processing example (2) : Cu pattern

Process | Comments |
---|---|
Resist | Positive resist |
Exposure | Contact aligner |
Developing | TMAH 2.38% |
Wet etching | Acid based etchant |
Resist stripping | Organic solvent |
Processing example (3) : Microfluidic chip

Process | Comments |
---|---|
Mask material | SiO2 |
Resist | Positive resist |
Exposure | Contact aligner |
Developing | TMAH 2.38% |
RIE etching | EXAM |
Resist stripping | Contact aligner |
ICP etching | SID-1246 |
Oxide removal | HF |
We strive to meet customer desires and needs making full use of our facilities and capabilities. Also sub-micron and nano-size fabrication possible.
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製品分類1 | Deposition, Photolithography, Etching |
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製品分類2 | Photolithography, Etching |
プロセス分類 |
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