摘要:
An interference filter having a layer with an area consisting of a porous material extending from the surface of the layer to the interior, the dimensions of the porous layer area in a direction normal to the layer surface have different values to provide for varying reflection or, respectively, transmission characteristics.
摘要:
A porous layer produced from silicon, germanium or aluminum by applying a wedge-shaped mask to the surface of the layer and by controlled elecrochemical etching along the mask.
摘要:
A multiplicity of components form a photodiode array on a substrate. Each of the components consists of a transistor of the p-n-p type with the outermost p-doped layer being transformed into an optical filter by control of the anodic etching operation utilizing transistor characteristics of the respective transistor. The result can provide red, blue and green filters in a color camera.
摘要:
A multiplicity of components form a photodiode array on a substrate. Each of the components consists of a transistor of the p-n-p type with the outermost p-doped layer being transformed into an optical filter by control of the anodic etching operation utilizing transistor characteristics of the respective transistor. The result can provide red, blue and green filters in a color camera.
摘要:
Disclosed is a sensor comprising a substrate, a source contact region, a drain contact region, and the gate oxide of a transistor. A gate electrode is disposed between the gate oxide and a detection electrode made of a nonconducting material. The contact area Asens between the gate electrode and the detection electrode is larger than the contact area Agate between the gate electrode and the gate oxide, whereby the receptor can be immobilized on the surface of the detection electrode in a technically simple manner while the small contact area Agate between the gate electrode and the transistor provides for high sensitivity for detecting the analyte. According to the inventive method for detecting at least one analyte, at least one analyte is brought into contact with a receptor immobilized at the detection electrode so as to modify the electrical charge at the surface of the detection electrode. The analyte is detected by detecting the modified voltage in the transistor.