摘要:
A passivated semiconductor structure and associated method are disclosed. The structure includes a silicon carbide substrate or layer; an oxidation layer on the silicon carbide substrate for lowering the interface density between the silicon carbide substrate and the thermal oxidation layer; a first sputtered non-stoichiometric silicon nitride layer on the thermal oxidation layer for reducing parasitic capacitance and minimizing device trapping; a second sputtered non-stoichiometric silicon nitride layer on the first layer for positioning subsequent passivation layers further from the substrate without encapsulating the structure; a sputtered stoichiometric silicon nitride layer on the second sputtered layer for encapsulating the structure and for enhancing the hydrogen barrier properties of the passivation layers; and a chemical vapor deposited environmental barrier layer of stoichiometric silicon nitride for step coverage and crack prevention on the encapsulant layer.
摘要:
A data structure which defines an electronic document comprises first and second substantially separate portions of data. The first portion of data defining the content of the document and the second portion comprising data relating to a pattern of position identification markings (106) such that when the electronic document is printed a pattern reading device, such as a pen (300), is able to determine its position relative to the position identification markings.
摘要:
A method of providing a copy of at least a portion of a document (2) comprising providing the document (2) with at least one document identifying indicia identifying at least a portion of the document, comprising the following steps, providing an indicia reader (8) to read the indicia on the document, reading the indicia with the indicia reader (8) and generating indicia data representative of the indicia, identifying the document (2), and/or portion thereof, from the indicia data generated by reading the indicia; and obtaining an electronic copy of the document and/or portions thereof identified by the indicia data.
摘要:
A method of associating a first electronic document with a second electronic document comprising having a first physical paper identifier (130) having pen-readable coding (12) which codes for an identifier for the first electronic document, and reading the coding of the first electronic document with a pen (20) to acquire information enabling the identity of the first electronic document to be established, and communicating that identity to a computer processor (107), and using the processor (107) to associate the identified first electronic document with the second electronic document.
摘要:
A method for calibrating a digital stylus comprising imaging a portion of a calibration pattern area of a data encoding pattern using an imaging module of the stylus in order to generate calibration data representing an error in alignment for the stylus, and using the calibration data to adjust subsequent measurements from the stylus in order to compensate for the error.
摘要:
A III-Nitride field-effect transistor, specifically a HEMT, comprises a channel layer, a barrier layer on the channel layer, an etch stop layer on the cap layer, a dielectric layer on the etch stop layer, a gate recess that extends to the barrier layer, and a gate contact in the gate recess. The etch stop layer may reduce damage associated with forming the recessed gate by not exposing the barrier layer to dry etching. The etch stop layer in the recess is removed and the remaining etch stop layer serves as a passivation layer.
摘要:
A document processing system comprises a pattern generating system 212 arranged to generate a data encoding pattern 6, a printer 202 arranged to print a document 2 having the pattern thereon, and a receiver 220 arranged to receive data over a communication link. The pattern generating system 212 is arranged to generate the pattern 6 so as to encode data defining a communication parameter suitable for the transmission of data to the receiver 220 over the link.
摘要:
A method for calibrating a digital stylus comprising imaging a portion of a calibration pattern area of a data encoding pattern using an imaging module of the stylus in order to generate calibration data representing an error in alignment for the stylus, and using the calibration data to adjust subsequent measurements from the stylus in order to compensate for the error.
摘要:
A product 2 has a data encoding pattern 6 thereon. The pattern comprising a plurality of pattern cells 200 each of which has a pattern selected from a group of cell patterns. Each cell pattern comprises a plurality of cell elements 204 each of which can have any of a plurality of marking states, such that the marking states of the elements produce the cell pattern. Each cell pattern has at least two lines of symmetry. At least some of the cells are arranged in a manner which is dependent on the position of the content
摘要:
A passivated semiconductor structure and associated method are disclosed. The structure includes a silicon carbide substrate or layer; an oxidation layer on the silicon carbide substrate for lowering the interface density between the silicon carbide substrate and the thermal oxidation layer; a first sputtered non-stoichiometric silicon nitride layer on the thermal oxidation layer for reducing parasitic capacitance and minimizing device trapping; a second sputtered non-stoichiometric silicon nitride layer on the first layer for positioning subsequent passivation layers further from the substrate without encapsulating the structure; a sputtered stoichiometric silicon nitride layer on the second sputtered layer for encapsulating the structure and for enhancing the hydrogen barrier properties of the passivation layers; and a chemical vapor deposited environmental barrier layer of stoichiometric silicon nitride for step coverage and crack prevention on the encapsulant layer.