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BOE 7:1 (87,5 : 12,5) - 2.50 l - VLSI - EVE/EUD!

TECHNIC France

BOE is mainly used for etching glasses, quartz and SiO2 films.

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Product number: TBOV1025

Manufacturer: TECHNIC France

Product information "BOE 7:1 (87,5 : 12,5) - 2.50 l - VLSI - EVE/EUD!"

BOE 7:1

Buffered Oxide Etch

General Information

BOE is mainly used for etching glasses, quartz and SiO2 films. We supply BOE 7:1 = buffered hydrofluoric acid (HF : NH4F = 12.5 : 87.5%) in VLSI-quality, which is the usual purity grades applied in semiconductor processing and micro-electronics.

NOTE: BOE must be stored and transported above +12.5°C. Below this critical temperature of 12.5°C the material forms particles (little crystals). Since these crystals have a higher density, they will accumulate at the bottom of the bottle and will only be completely re-dissolved when the material is stored at temperatures of 30 - 35°C for some days. After this procedure the crystals should be re-dissolved completely and the BOE can be then used without restrictions.

Further Information

MSDS:
Safety Data Sheet BOE 7:1 (VLSI) english
Sicherheitsdatenblatt BOE 7:1 (VLSI) german

Specs:
Specs BOE 7:1 (VLSI)

Application Notes:
Wet Etching english
Nasschemisches Ätzen german

Further Information about Processing

Compatible Substrates:	Glass, Quartz, SiO2
Purity:	VLSI

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TiW etch 100 Titan-Wolfram Etchant General Information TiW etch 100 is applied as etchant for titanium-for the wet-chemical patterning of TiW layers with selectivity to metals like Au, Pt, Ni, Cr, Sn. Usual applications are found in the semiconductor or microsystem technology field for etching adhesion layers or diffusion barriers. Product Properties Low undercut (in the range of the layer thickness), minimum feature size < 1µm Selectivity to many materials, e.g. common metals used in electroplating industry Compatible to resist masking Selectivity TiW etch 100 is compatible/etches selective to following materials: Resists: common Novolak as masking resist (e.g. AZ® Photoresist) Metals: no attack on Au, Pt, Ni, Cr, Sn Metals: attack on TiW, Cu Cu impact at prolonged exposition Semiconductor materials: Si, SiO2, Si3N4 Data on selectivity and compatibility are manufacturer information and do not claim to be complete. Please contact us for further details. Etching Rate Under normal condition, the etching rate is around 1nm/sec (at room temperature). The mixed etching solution is stable over time and can be used multiple times depending on the requirements of application. It is recommended to dispose the solution at the latest, when the etching rate has changed by 20%. Further Information MSDS: Safety Data Sheet TiW etch 100 english Sicherheitsdatenblatt TiW etch 100 german TDS: Technical Data Sheet TiW etch 100 english Technisches Datenblatt TiW etch 100 german Application Notes: Wet Etching english Nasschemisches Ätzen german Wet Etching of Metals english Nasschemisches Ätzen von Metallen german Further Information about Processing

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Phosphoric Acid 85% - 2.50 l - (VLSI)

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Phosphoric Acid H3PO4 General Information Phosphoric Acid mixed with HNO3 is an ingredient of many etching mixtures for e.g. Aluminium and many other metals. We supply Phosphoric Acid (85%) in VLSI-quality, which is the usual purity grades applied in semiconductor processing and micro-electronics. Further Information MSDS: Safety Data Sheet Phosphoric Acid 85% (VLSI) english Sicherheitsdatenblatt Phosphoric Acid 85% (VLSI) german Specs: Specs Phosphoric Acid 85% (VLSI) Application Notes: Wet Etching english Nasschemisches Ätzen german Further Information about Processing

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Nitric Acid 69.5% - 2.50 l - (VLSI) - PERSO+EVE/EUD!

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Nitric Acid HNO3 General Information Nitric Acid is the oxidizing ingredient of many etching mixtures for e.g. Silver, Copper, Aluminium, Silicon, Germanium and (together with HCl as aqua regia) Gold. We supply Nitric Acid (69%) in VLSI-quality, which is the usual purity grades applied in semiconductor processing and micro-electronics. Further Information MSDS: Safety Data Sheet Nitric Acid 69,5% (VLSI) english Sicherheitsdatenblatt Nitric Acid 69,5% (VLSI) german Specs: Specs Nitric Acid 69,5% (VLSI) Application Notes: Wet Etching english Nasschemisches Ätzen german Further Information about Processing

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Hydrochloric Acid 37% - 2.50 l - VLSI - EVE/EUD!

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Hydrochloric Acid HCI General Information Hydrochloric Acid is an ingredient of various etching mixtures for e.g. ITO, Silver and (together with HNO3 as aqua regia) gold. HCl is suited for the removal of oxide films on many metals. Our Hydrochloric Acid (37%) is available in VLSI-quality, which is the usual purity grades applied in semiconductor processing and micro-electronics. NOTE: HCl (hydrogen chloride), is a gas that dissolves very well in water and forms hydrochloric acid in dissolved form. With a molar mass of 36 g / mol, hydrogen chloride is a very small molecule, which means that it can diffuse through polymers very well. For reasons of purity, the hydrochloric acid is filled in HD-PE polymer bottles. In order to protect the bottles from particles and contaminations, these bottles (which are intended for the use in clean rooms) are packed in plastic bags. Over the time of storage, however, the hydrogen chloride diffuses through the wall of the bottle, which is made of polymer, and collects in the foil bag. There is air that contains not only carbon dioxide but also water vapor and it can react with the hydrogen chloride, whereby either a white dust or fine droplets can be found in the foil bag. This happens during storage even if there is not the slightest leak in the bottles. This white dust or the possible fine droplets are the reason why the 37% hydrochlo¬ric acid, unlike e.g. sulfuric acid of the same degree of purity, has not a shelf life of 3 years, but is only „durable“ for 1 year. It is therefore not the reason that the acid would not maintain its purity or its properties, but rather the label and also the bottles or foil bags are increasingly affected by the problem described above in the course of storage. Further Information MSDS: Safety Data Sheet Hydrochloric Acid 37% (VLSI) english Sicherheitsdatenblatt Salzsäure 37% (VLSI) german Specs: Specs Hydrochloric Acid 37% (VLSI) Application Notes: Wet Etching english Nasschemisches Ätzen german Further Information about Processing

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Sulfuric Acid 96% - 2.50 l - VLSI - PERSO+EVE/EUD!

TSWV1025

Sulfuric Acid H2SO4 General Information A mixture of Sulfuric Acid with H2O2 is a powerful stripper for organic impurities or residuals on substrates. We supply Sulfuric Acid (96%) in VLSI-quality, which is the usual purity grades applied in semiconductor processing and micro-electronics. Further Information MSDS: Safety Data Sheet Sulfuric Acid 96% (VLSI) english Sicherheitsdatenblatt Sulfuric Acid 96% (VLSI) german Specs: Specs Sulfuric Acid 96% (VLSI) Application Notes: Wet Etching english Nasschemisches Ätzen german Further Information about Processing