摘要:
A stereolithographic method and apparatus for applying packaging material to workpieces, such as preformed electronic components, including semiconductor dice, with a high degree of precision, and resulting articles. A machine vision system including at least one camera is operably associated with a computer controlling a stereolithographic system for application of material so that the system may recognize the position and orientation of workpieces, such as semiconductor dice, to which the material is to be applied. The requirement for precise mechanical workpiece alignment is eliminated, and the ability of the system to recognize size, configuration and topography of different workpieces affords greater manufacturing flexibility. The method includes stereolithographic application of material for packaging electronic components, and the electronic components so packaged are also part of the invention.
摘要:
Disclosed are apparatus and methods for supplying a constant flow of precursor gas to a processing chamber. The apparatus described, and methods of use, allow a precursor ampoule to be removed from the gas delivery system without interrupting the process.
摘要:
The present invention provides microelectronic component assemblies and lead frame structures that may be useful in such assemblies. For example, one such lead frame structure may include a set of leads extending in a first direction and a dam bar. Each of the leads may have an outer length and an outer edge. The dam bar may include a plurality of dam bar elements, with each dam bar element being joined to the outer lengths of two adjacent leads. In this example, each dam bar element has an outer edge that extends farther outwardly than the outer edges of the two adjacent leads. The outer edges of the leads and the outer edges of the dam bar elements together define an irregular outer edge of the dam bar. Other lead frame structures and various microelectronic component assemblies are also shown and described.
摘要:
The present invention relates generally to a plating buss design and method for minimizing short circuit problems in PCB panel singulation. More particularly, the invention encompasses a serpentine plating buss which increases the PCB singulation process window thereby minimizing short circuit problems due to indexing errors caused by occasional manufacturing and equipment alignment problems. The serpentine plating buss design therefore increases board yield.
摘要:
A semiconductor package with thermally enhanced properties is described. The semiconductor package includes a substrate upon which a die is affixed. The die and the substrate each have contacts which are respectively connected with each other. A heat sink is affixed to a surface of the die by way of a thermally compliant material. The compliant material reduces the stresses caused by temperature fluctuations which cause the heat sink and the die to expand and contract at different rates. A first molding material is deposited around the periphery of the die, compliant material and heat sink, thereby leaving exposed substantially an entire surface of the heat sink.
摘要:
A foundation for supporting poles, particularly electrical power cable support poles, is formed by boring a hole only slightly larger than the pole base onto the earth a desired depth. A reinforcing structure is lowered into the hole. The reinforcing structure usually rests on the bottom of the hole and extends above the earth surface a number of feet. The hole is then filled with concrete, usually up to the earth surface, and allowed to cure. A lowermost or base section of the pole is then lowered into position about an exposed upper portion of the reinforcing structure. Concrete is placed into the interior of the pole section about the reinforcing structure until it is covered. After the concrete cures, any remaining pole sections may be installed onto the base section.
摘要:
An absorbent article suitable for absorption of aqueous as well as oleaginous liquids such as metal cutting fluids, hydraulic fluids, oils and the like is disclosed. The absorbent article is a spunlaced material sleeve closed at both ends and filled with an inherently flameproof particulate material, such as particulate clay material, having a certain particle size range. The spunlaced material is liquid permeable, oleophilic, and hydrophilic. The spunlaced material also has a liquid wicking rate that is at least equal to that of the particulate clay material contained within the sleeve. Preferred spunlaced materials are woodpulp/polyester spunlaced materials having a woodpulp-rich face and a polyester-rich face. The polyester-rich face is situated contiguous to the particulate absorbent material.
摘要:
Microfeature dies with redistribution structures that reduce or eliminate line interference are disclosed. The microfeature dies can include a substrate having a bond site and integrated circuitry electrically connected to the bond site. The microfeature dies can also include and a redistribution structure coupled to the substrate. The redistribution structure can include an external contact site configured to receive an electric coupler, a conductive line that is electrically connected to the external contact site and the bond site, and a conductive shield that at least partially surrounds the conductive line.
摘要:
Stacked microfeature devices and associated methods of manufacture are disclosed. A package in accordance with one embodiment includes first and second microfeature devices having corresponding first and second bond pad surfaces that face toward each other. First bond pads can be positioned at least proximate to the first bond pad surface and second bond pads can be positioned at least proximate to the second bond pad surface. A package connection site can provide electrical communication between the first microfeature device and components external to the package. A wirebond can be coupled between at least one of the first bond pads and the package connection site, and an electrically conductive link can be coupled between the first microfeature device and at least one of the second bond pads of the second microfeature device. Accordingly, the first microfeature device can form a portion of an electrical link to the second microfeature device.
摘要:
Methods for fabricating conductive structures on and/or in interposing devices and microfeature devices that are formed using such methods are disclosed herein. In one embodiment, a method for fabricating interposer devices having substrates includes forming a plurality of conductive sections on a first substrate in a first pattern. The method continues by forming a plurality of conductive sections on a second substrate in a second pattern. The method further includes constructing a plurality of conductive lines in a common third pattern on both the first substrate and the second substrate. The conductive lines can be formed on the first and second substrates either before or after forming the first pattern of conductive sections on the first substrate and/or forming the second pattern of conductive sections on the second substrate.