Go to the data sheet of our ITO-coatings
Here you will find the FAQ in regards to our ITO-coated materials and to ITO-coatings in general. If you can't find an answer to a question you might have please feel free to contact us with your question. We will be pleased to share all available information with you.
All given details and specifications are mean reference values and are not guaranteed.
In addition, please consider our "Notes on technical specifications"
A: It is not practicable to inspect the surface of each single ITO-coated glass at a nanometer level. We therefore generally do not make a binding specification on the micro roughness. If we would specify the micro roughness we would have to do a 100 % surface inspection on a nanometer level with an atomic force microscope (AFM). This would mean that we would have to inspect the complete surface area of each single of the many million ITO-coated substrates and windows we make. This is of course not practicable.
However, many of our customers are successfully using our ITO-coated materials for applications where the micro roughness is critical. For some of our coatings of the CEC-P and CEC-S Series we have typical AFM surface-roughness test reports. We will be pleased to share these test results with you on request. Again please consider that these measurements are from random batches random snapshots that were taken from a randomly selected production batch. These measurements do not present a specification.
A: A great advantage to our customers is that we as a manufacturing company are not limited to standard dimensions like most trading companies are. Almost every customer needs different dimensions and it often mandatory to the user to get the part size really required for his application. To be able to be quick even at custom sizes we permanently make numerous ITO-coated materials which you can find in this table. Please choose a material you are interested in and pick an available glass substrate thickness from the table, enter the size, and fill out our comfortable request form. You are absolutely free to specify the dimensions! You normally will receive individual quotation the same day we received your request. Typical delivery time for precision CNC-cut parts with customized dimensions made from any of the stock materials is 1-2 weeks provided the tolerances or required manufacturing steps or heavy production load do not make a longer lead time necessary.
A: Yes of course! This is our specialty. Please just send us your inquiry and we will return a quotation for your custom sized part usually on the same day we receive your request.
A: Generally said rectangle shapes are more economical to make than round parts especially at small quantities. At large and very large quantities this cost difference gets significantly smaller but the cost will never end up on the same level. Of course this depends on the details but a rectangle part with moderate tolerances compared to a round part with same tolerances will typically be more economical.
A: Yes we can. This however is only possible on a per coating batch basis. This means it is only possible if the quantity is large enough for a custom coating-run. It is not possible or extremely uneconomical at single pieces or at small quantities. Small quantities would result in extremely high piece prices because the total coating run cost remain about the same no matter whether one piece or the full batch is coated. If you want to know what quantity will be required for a custom coating batch please send us your detailed request and we will let you know whatever is possible or reasonable.
A: This depends on the tolerances and complexity of your parts and of course on the required manufacturing steps. Not at least it also depends on our production load. To give you an example, for precision CNC-cut square or rectangle parts with average tolerances at normal production load a typical delivery time is less than a week!
A: Yes! This however, is possible only on a per batch basis. The substrate material in any case must be a suitable glass. We usually do not coat plastics. However there are some exceptions depending on the technical performance of the respective plastic material. In case you want to get a special glass or plastic custom coated, please contact us with your inquiry and we will let you know the possible options.
A: Yes, generally we can custom coat customer furnished material. A requirement for this is that your substrates are not already coated with any other coating and that the substrates are suitable to be ITO-coated. Please send us your inquiry with all details. Please consider that this requires at least a full coating run.
A: We usually do not coat plastics. However, there are exceptions depending on the technical performance of the plastic material. Please contact us with your inquiry.
A: The surface resistivity of an fully oxidized ITO-coating depends on the film thickness and vice versa. Hence it isn't possible to make a specification for both parameters because they depend on each other.
A: The only difference between the CEC-P and CEC-S coatings is that the substrates used for the CEC-P series are additionally mechanically polished. This results in an lower total thickness variation (TTV) and a better optical flatness but at the same time it slightly increases the surface micro roughness. This is resulting from the micro scratches on nm level that are occurring when a glass is mechanically polished which is a normal effect. In other words generally the CEC-S coatings have a better (lower) surface micro roughness and the CEC-P coatings show a better TTV and optical flatness.
A: We do not make bus bars on our ITO-coatings. However, as a special service we supply electrically conductive adhesive copper tape to the customers of our ITO-coated materials.
A: No. We have many customers though who use our ITO-coated materials to make their own heatable window or their heatable microscope slide.
A: Yes we do! We can make any size of ITO-coated microscope slide you want. Please choose an ITO-coated material you are interested in from the table here, click on an available glass substrate thickness, and please let us know the size and quantity of the microscope slide you are interested in. We will send you a detailed quotation in return usually the same day we receive your request.
A: No. As a manufacturing company we are not restricted to standard sizes and we do not have a price-list like trading companies. This is of great advantage because you are absolutely free to specify the dimensions exactly you need them for your special application. Please choose an ITO-coated material you are interested in from the chart here, click on an available glass thickness, and just let us know the dimensions and quantity you will need. We will send you a detailed quotation in return usually the same day we receive your request.
A: The thinnest substrate thickness that can be coated is approximately 0,175 mm. We always make an ITO-coated thin glass, our CEC020T, with 20 Ω/sq which you might be able to use when you are in search of thin ITO-coated glass. Please see our chart here which contains all available resistances and glass thicknesses and send us individual request. Also custom coatings are possible provided that the quantity is large enough for a coating run.
A: This depends on the surface resistance and therefore on the ITO-film thickness, the substrate material, and on how good the refractive index of the glass used matches to the refractive index of the ITO-thin film. You can find typical transmission curves of many of our coatings here. If you need a typical transmission curve for a coating not listed there please do not hesitate to contact us and let us know what coating you want the transmission information for.
A: Yes. You can find typical transmission curves of many of our coatings here. Also we have additional information on the transmission or reflection of many of our ITO-coated materials which we can provide to you on request.
A: Yes, but this however, is only possible on a per coating batch basis and on request. This means the quantity must be large enough for a custom coating run. It is not possible or extremely uneconomical at single pieces or at small quantities. Please also consider that the top layer of an IMITO-coating cannot be ITO because an layer on top of the ITO is required to adapt the refractive indexes. This means the ITO cannot be contacted as long as the layer(s) on top are removed.
A: Generally the lowest square resistance we coat is around 5 Ω per square and the highest is about 1000 Ω per square. We regularly make various coatings in this range (please see chart here). If you need another square resistance please send us your inquiry.
A: The SiO2 passivation layer is located between the glass substrate and the ITO-thin film. In other words the quartz barrier layer separates the Indium Tin Oxide layer from the glass surface. This quartz layer is only several nanometers thick and increases the electrical insulation. At the same time the layer minimizes leaching of alkali-oxides from the glass into liquid crystals which is very function critical for display applications. Only our CEC-S and CEC-P coatings have a SiO2 passivation layer. All other coatings do not have a passivation layer. The SiO2 layer of our CEC-S and CEC-P coatings does NOT add any extra cost to our ITO-coated end product as it is an integrated process.
A: The SiO2 layer of the CEC-S and CEC-P coatings does NOT add any extra cost to the ITO-coated end product as it is an integrated process. It just increases the technical product quality without increasing the cost. The CEC-S and CEC-P coatings are even our most economical ITO-coatings although they are the only ITO-coatings with a standard passivation layer.
A: All coatings without defined ITO-film thicknesses are made in a smaller coating machine. Those ITO-coatings are mainly based on "exotic" glass substrate materials and we don't make them at very large quantities like our CEC-S or CEC-P coatings for example. In the smaller coating chambers only the transmission and the surface resistances are monitored during the coating process. The film thickness is a result of these parameters and is not process controlled. We therefore do not make specifications on the film thickness of these CEC-coatings. Roughly said the film thickness will approximately be in the range of the CEC-S coatings.
A: Sorry, no, we do not offer patterned ITO-coatings or masking services at all. Our customers usually do the patterning themselves by etching away some areas of the ITO-coating. For some of our coatings we give out typical non-binding etching recommendations on request. If you are interested in obtaining these, please contact us.