Abstract: Disclosed is an enhanced conformal coating, a process for making the same, and several computer related applications. A commercially available conformal coating is combined with a commercially available blowing agent (sometimes called a “foaming agent”) to create an enhanced conformal coating. The formulation of the enhanced coating is such that it will emit a particular gas when heated to a particular temperature. The enhanced coating is then applied to an object to which pre-damage heat detection is desired. A sensor, located proximate to the object, is then used to detect the emitted gas. Once the gas is detected, actions can be taken to reduce the heat in a manner appropriate for the particular object. Application of the enhanced coating within the computer industry can involve its use with a particular electrical component or a group of electrical components (e.g., a circuit board). For example, the enhanced coating can be applied to one or more circuit boards.

Abstract: The system of this invention manages customer orders using vendor supplied software systems interfaced on a real-time basis to touch the data in each system on a real-time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders, to verify customer data and to verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.

Abstract: The system of this invention manages customer orders using vendor supplied software systems interfaced on a real time basis to touch the data in each system on a real time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders, and to verify customer data and verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.

Abstract: The system of this invention manages customer orders using vendor supplied software systems interfaced on a real-time basis to touch the data in each system on a real-time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders, to verify customer data and to verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.

Abstract: Disclosed is an enhanced conformal coating, a process for making the same, and several computer related applications. A commercially available conformal coating is combined with a commercially available blowing agent (sometimes called a “foaming agent”) to create an enhanced conformal coating. The formulation of the enhanced coating is such that it will emit a particular gas when heated to a particular temperature. The enhanced coating is then applied to an object to which pre-damage heat detection is desired. A sensor, located proximate to the object, is then used to detect the emitted gas. Once the gas is detected, actions can be taken to reduce the heat in a manner appropriate for the particular object. Application of the enhanced coating within the computer industry can involve its use with a particular electrical component or a group of electrical components (e.g., a circuit board). For example, the enhanced coating can be applied to one or more circuit boards.

Abstract: An optical subassembly for an optoelectronic module includes a multifunctional acrylate resin adhesive to adhere a lens and/or an optoelectronic device, e.g., having a laser or a photoelectric receiver chip. An adhesive composition including a multifunctional acrylate resin cures to form an adhesive having a tightly cross-linked network of low CTE (coefficient of thermal expansion). The adhesive's low CTE can improve (as compared to conventional, optically clear adhesives) the vertical offset, for example, of the lens relative to the optoelectronic device at the operating temperature of the subassembly. For example, an adhesive composition including a multifunctional acrylate resin (e.g., a di-, tri-, tetra-, pentafunctional acrylate resin, or a mixture thereof) may be applied to a ball lens and/or a recess of a silicon optical bench, which are then joined and the adhesive composition cured. The adhesive composition may be cured by exposure to UV radiation and/or heat, for example.

Abstract: An apparatus for dispensing a multiple-component substance from a multiple-barrel cartridge (e.g., a two-barrel adhesive cartridge) includes a housing having a slot for receiving a flange of the cartridge. Preferably, the housing includes a pivoting latch that rigidly secures the flange within the slot. Plungers positioned within the housing are received by the barrels of the cartridge. A motor, which is disposed in the housing and controlled by a microprocessor, is mechanically connected to the plungers and drives the plungers within the barrels. The motor may be connected to the plungers through a lead screw assembly, for example. Preferably, the housing is handheld for ease of operation and remote from a control unit containing the microprocessor. The control unit may include a keypad and screen, operatively connected to the microprocessor, for data entry and display. The dispensing apparatus permits precise placement of two-component adhesives, for example.

Abstract: An apparatus for dispensing a multiple-component substance from a multiple-barrel cartridge (e.g., a two-barrel adhesive cartridge) includes a housing having a slot for receiving a flange of the cartridge. Preferably, the housing includes a pivoting latch that rigidly secures the flange within the slot. Plungers positioned within the housing are received by the barrels of the cartridge. A motor, which is disposed in the housing and controlled by a microprocessor, is mechanically connected to the plungers and drives the plungers within the barrels. The motor may be connected to the plungers through a lead screw assembly, for example. Preferably, the housing is handheld for ease of operation and remote from a control unit containing the microprocessor. The control unit may include a keypad and screen, operatively connected to the microprocessor, for data entry and display. The dispensing apparatus permits precise placement of two-component adhesives, for example.

Abstract: An optical subassembly for an optoelectronic module includes an adhesive interface between a lens and an optoelectronic device, e.g., having a laser or a photoelectric receiver chip. In addition to eliminating moisture condensation, the adhesive interface can eliminate damage to a structural adhesive that may occur when air of a conventional interface expands as the structural adhesive is cured. The adhesive interface has optical transmittance at the optoelectronic device's operating wavelength, e.g., 850 nm. The lens surface shape is selected based on the adhesive interface's refractive index. An adhesive is applied both to the lens and to the optoelectronic device, which are then joined and the adhesive cured to form the adhesive interface. The adhesive is cured by exposure to UV radiation and/or heat, for example.

Abstract: The system of this invention manages customer orders and using vendor supplied software systems interfaced on a real-time basis to touch the data in each system on a real time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders and to verify customer data and verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.

Abstract: A photocurable adhesive composition is disclosed which includes a photocurable adhesive and an effective amount of a ceramic-containing modifier which does not substantially reduce a photocure rate of the photocurable adhesive. The modifier alters the flow properties of the composition to facilitate controlled dispensing of the uncured adhesive composition. The modifier alters the thermal expansion properties of the cured composition to reduce bondline stress. The preferred modifier includes inert, alkali alumino-silicate microspheres. A method of adhesive bonding is also disclosed in which an adherend is adhered to a substrate using a photocurable adhesive composition containing a photocurable adhesive and microspheres.

Abstract: An optically clear encapsulant for optoelectronic packages exhibits a suitably high viscosity both to replace a silicon nitride passivation layer required on a VCSEL die and to fill a gap between the die and an optical coupler, preventing light signal degradation. The encapsulant exhibits optical transparency to light having a wavelength of about 850 nanometers (nm) with substantially no Mie scattering since particulate fillers are not required to modulate viscosity in the encapsulant. Also, the encapsulant further seals wire bonds between the die and a cable header to prevent abrasive wear. The gap-filling encapsulant is particularly suitable for use with vertical cavity surface emitting laser (VCSEL) technology. The encapsulant includes prior to curing, a difunctional acrylate epoxy resin exhibiting pseudoplastic flow and a viscosity of greater than about 0.7×106 centipoise.

Abstract: A material and a method for forming a tamper-indicating identification coating are provided. The components of the coating are selected such that the coating exhibits a characteristic absorption spectrum with distinct features in individual regions during Fourier-transform infa-red (FTIR) spectroscopy. The coating components are selected to provide a distinct spectrum while, at the same time, providing a sufficiently complex spectrum such that the coating is difficult to duplicate. Also, a blowing agent in the coating decomposes to change the FTIR spectrum due to the heat associated with resoldering of an out-of-warranty electronic part marked with the identification coating to an in-warranty circuit card. In addition, the coating may contain a fluorophore to reveal the presence of a tamper-indicating identification coating, allowing a manufacturer to check the card by exposure with ultra-violet (UV) light. Further, the coating composition may be changed periodically and tracked to provide a date marker.

Abstract: A cleavable epoxy resin composition suitable for encapsulating electronic chips comprising the cured reaction product of a diepoxide containing a cyclic anhydride curing agent or and an amine promoter.

Abstract: A material and a method for forming a tamper-indicating identification coating are provided. The components of the coating are selected such that the coating exhibits a characteristic absorption spectrum with distinct features in individual regions during Fourier-transform infra-red (FTIR) spectroscopy. The coating components are selected to provide a distinct spectrum while, at the same time, providing a sufficiently complex spectrum such that the coating is difficult to duplicate. Also, a blowing agent in the coating decomposes to change the FTIR spectrum due to the heat associated with resoldering of an out-of-warranty electronic part marked with the identification coating to an in-warranty circuit card. In addition, the coating may contain a fluorophore to reveal the presence of a tamper-indicating identification coating, allowing a manufacturer to check the card by exposure with ultra-violet (UV) light. Further, the coating composition may be changed periodically and tracked to provide a date marker.

Abstract: An uncured thermosetting composition which is capable of curing upon exposure to actinic radiation is disclosed. The composition includes an acetal diepoxide of the formula: ##STR1## wherein R and R' are individually an aliphatic epoxy, or a cycloaliphatic epoxy; R.sub.1 and R.sub.4 are individually an alkyl, substituted alkyl, aryl, aryl alkyl; and R.sub.2 and R.sub.3 are individually hydrogen, alkyl, alkoxy, substituted alkyl aryl, alkyl aryl, and cyclic alkyl; as well as a photoinitiator, and an inorganic filler. The composition of the invention may also include a second epoxy functional resin, a flexibilizer, and other adjuvants. Other aspects of the invention include the cured resin encapsulant and a method of recovering the resin from a circuit assembly.

Abstract: A cleavable epoxy resin composition suitable for encapsulating electronic chips and a method for making the composition comprises the cured reaction product of a diepoxide; a cyclic dicarboxylic anhydride curing agent mixture; a 1,3-diaza compound having two nitrogen atoms present with one nitrogen atom doubly bonded to the central carbon and singly bonded to one other carbon, and the other nitrogen atom singly bonded to the central carbon and singly bonded to another carbon and singly bonded to a hydrogen. The 1,3-diaza compound serves either as the sole catalyst or in combination with a tertiary amine catalyst different from the diaza compound. The composition may include an optional hydroxy functional compound capable of reacting with the cyclic anhydrides to form a half ester thereby initiating the reaction between the diepoxide and the cyclic dicarboxylic anhydride curing agent. The resin can be used for the encapsulation of electronic parts, but can be removed by a solvent.

Abstract: The claimed invention is an uncured thermosetting composition which is capable of curing upon exposure to actinic radiation, said composition comprising an acetal diacrylate of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are individually hydrogen, C.sub.1-6 alkyl, aryl, or substituted aryl; R.sub.3 and R.sub.4 are individually C.sub.1-6 alkyl, aryl, substituted alkyl, or aryl alkyl; and R.sub.5 and R.sub.6 are individually hydrogen or C.sub.1-6 alkyl; and a free radical curing agent.

Abstract: The system of this invention manages customer orders using vendor supplied software systems interfaced on a real-time basis to touch the data in each system on a real time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders, and to verify customer data and verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.

Abstract: The system of this invention manages customer orders using vendor supplied software systems interfaced on a real-time basis to touch the data in each system on a real time basis. In effect, there is horizontal communication between the various components of the system such as inventory, purchasing, order management and receipt, logistics and inventory to have continual data flow without using a vertical software interface. As a result, customer orders are received on a real-time basis using screens that are user friendly to promptly take orders, and to verify customer data and verify the ability to meet those orders. Transmission of documents within the system is minimized thereby making it more efficient, timely and cost efficient.