A method for manufacturing a light-emitting diode (LED) is described. The method comprises: providing a temporary substrate; forming an illuminant epitaxial structure on the temporary substrate; forming a first transparent conductive layer on the illuminant epitaxial structure; forming a metal substrate on the first transparent conductive layer; forming an adhesion layer on the metal substrate; providing a supporting substrate, wherein the supporting substrate is connected to the metal substrate...

The fabrication of an integrated circuit includes a first phase of producing an electronic chip and a second phase of producing at least one auxiliary component placed above the chip and of producing a protective cover which covers the auxiliary component. The first phase of producing the chip is effected from a first semiconductor substrate and comprises the formation of a cavity lying in a chosen region of the chip and emerging at the upper surface of the chip. The second production phase incl...

The present disclosure pertains to a method of preparing a test specimen for testing of the bonding strength of a layer of additive material to a crystalline substrate, or testing of the bonding strength of one layer of additive material to a second layer of additive material, where both layers of additive material overlie a crystalline substrate. The method includes both test specimen "cutting" from a large sample of material and preparation of an individual test specimen for four-point adhesio...

A method of producing a device with a movable portion spaced apart from a support wafer comprises a step of providing the support wafer having a structured surface and a further step of providing a device wafer with a backing layer and a device layer disposed thereon. Further, the method comprises the step of generating a first planarization layer from a first starting material on the support wafer with a first method to fill in the structures of the structured surface of the support wafer, wher...

Coating compositions containing an alkyd, urethane or unsaturated polyester resin and an ester of an unsaturated alcohol and fluorinated acid wherein the cured coating has an advancing hexadecane contact angle of at least about 40 degrees and improved oil and water repellency is disclosed.

A Method of Making a High Precision Microelectromechanical Capacitor with Programmable Voltage Source includes steps for forming a monolithic MEMS device having a capacitance actuator, a trim capacitor, and a high precision, programmable voltage source. The trim capacitor has a variable capacitance value, preferably for making fine adjustments in capacitance. The capacitance actuator is preferably mechanically coupled to and electrically isolated from the trim capacitor and is used to control th...

A method of fabricating micro-mechanical devices. A mesa is etched in a homogeneous wafer. The wafer is bonded to a patterned substrate with the mesa defining device elements suspended above the substrate. A portion of the wafer is removed until a desired device thickness is achieved. Discrete elements of the device are then formed by performing a structural etch on the remaining wafer material.

A passive, all optical communications network is provided in which a single optical source in a central station serves many outstations (e.g. telephones in customers' premises). Time division multiplexed optical signals from a laser source are transmitted along a single optical fibre (14) from a central station (4). The signal is split between several secondary fibers at a first splitter (10) (e.g. array of passive couplers) and between further sets of fibers at a second set of splitters (12). A...

A geographically specific emergency alert system includes a code generator unit in which geographic areas to be alerted and types of severity of alerts are selected and code strings generated to represent the affected areas and alert types selected. The code strings are broadcast by modulating the audio carrier of a television signal and received on receiver units positioned in areas within the broadcast market of a television station providing the alerting service. Location codes or entered int...

A heat-hardenable reaction resin mixture including a polyisocyanate; a polyepoxy resin and an olefinically unsaturated compound having no active hydrogen atoms. Addition complexes of tertiary amines and boron trichloride having the general formula BCl.sub.3.NR.sub.1 R.sub.2 R.sub.3 are used as accelerators. Polymerizate inhibitors may also be added. The mixture is very storage-stable and hardens in short times (quickly) at elevated temperatures. The molding materials obtained in this manner are ...