Optical Products

For more than 40 years, Sil'tronix Silicon Technologies produces its own monocrystalline silicon ingot in order to provide the highest quality for photonic applications.

With the aim to manufacture the most valuable customized silicon crystals for synchrotron beamlines, neutron sources, infrared, X-ray applications, etc... we manage the whole manufacturing process by the achievement of the entirely production within our own factory. The fabrication is totaly made internally from the pulling process to get the ingot to the final step which is the cleaning process. This production flow allows to maintain a reliable and qualitative consistency. It is also the best way to ensure the flexibility requested to answer to tight requests.

The major source of motivation for our company is to provide the most suitable silicon bloc regarding the customer requirement. It is the reason we manufacture the products on demand regarding individual specification such as schemes.


Throughout the years, we accumulated experiences to specialize in the crystallographic sciences and especially within the diffraction of light by producing a large range of monocrystalline silicon crystals.

To produce a qualitative crystallographic products, pure silicon raw material is used (9N).

single SILICON crystals for Neutron Sources


Define and find your own silicon crystals dedicated to neutron reflectivity.

Sil'tronix ST is the European leader of the Silicon Crystal Blocks by providing 90% of the research teams working in Europe on Neutron Backscattering Spectroscopy

Read more about silicon crystals

ATR Silicon crystals and prisms


Sil’tronix ST manufactures on demand silicon ATR Crystals for FTIR-ATR spectroscopy and neutron experiments.

Read more about ATR silicon crystal

X-Ray Crystals


Over the past 10 years we produced hundreds of silicon and germanium Crystals (X-ray monochromators and mirrors aimed to condition primary X-ray beams or to analyze diffracted X-ray beams in multi-crystal diffraction arrangements).

Our silicon crystals include: flat symmetrical of asymmetrical, channel-cut for multiple reflections, symmetrical or asymmetrical.

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zero diffraction plate for XRD

Silicon sample Holder or also named Zero Background Holder for X-Ray Diffraction (XRD) analysis.


Our products are made of semiconductor grade silicon single crystals. They have been designed to be ideal for Rietveld analysis as they present practically no interference lines. The XRD pattern obtained, by using our Sil’tronix crystals as background plate, is very “clean”, so that even at very low-intensity, samples’ Bragg reflections can be easily detected.

Read more about zero diffraction pate

Silicon Sputtering Targets


Sil'tronix ST produces a comprehensive offering of monocrystalline silicon sputtering targets.

Our products can be manufactured according to your specifications.

Read more sputtering targets

Optical windows

Sil'Tronix - Silicon windows.jpg

Optical grade Silicon is normally specified with a resistivity of 5 to 40 ohm-cm for best transmission about 10 μm. Silicon windows has a further pass band 30 to 100 microns which is effective only in very high resistivity material.  

Read more about optical windows

Porous Silicon (in collaboration with Silimixt)

Film PSi 50µm Diamètre 200mm.png

A porous silicon layer results from an electrochemical etching of a crystalline silicon wafer in a hydrofluoric acid based electrolyte. Various morphologies can be obtained depending on the type, the doping level, the crystalline orientation of the Si wafer and also on the electrolyte composition.

Read more about porous silicon       




Silicon wafer stock


Silicon wafer configurator


SOI wafer configurator



Brochure Silicon wafers.pdf application/pdf

Brochure Thin silicon wafers.pdf application/pdf

Brochure Additional layers.pdf application/pdf

Brochure Services.pdf application/pdf