Abstract:
An interface layer for separating first and second microelectronic ceramic substrates during firing includes a thermally degradable binder, preferably a polymer, that degrades at temperatures above room temperature and below a firing temperature for the microelectronic ceramic substrates, and a separating material, such as boron nitride or graphite. The method of making the interface layer includes mixing the binder, one or more solvents for the binder, a plasticizer and the separating material for a sufficient period of time to form a homogeneous mass, then casting the material in a thin sheet to form the interface layer.
Abstract:
A surgical sleeve which includes an array of spaced apart protuberances on an interior wall surface. The spaced protuberance reduce the surface contact between the sleeve and the tip and define a network of generally uniform channels through which fluid may flow, irrespective of pressure applied to the sleeve. As a result, the sleeve is able to provide fluid flow which is better able to remove heat from the tip and provide a more uniform irrigation of the eye.
Abstract:
Camber of ceramic substrates is prevented by placing a conformable load tile over substrates during sintering. The conformable load tile has an initial curvature that facilitates escape of substrate binder gases during a burn out cycle. Subsequently, the conformable load tile conforms to the substrates under the higher heat of sintering temperature to maintain flatness of the substrates. To prevent sticking of the conformable load tile to the substrates, the conformable load tile is provided with a nonstick surface.
Abstract:
Process for producing multilayer ceramic substrates using greensheet technology and thin dielectric ceramic greensheets for miniaturization purposes. The process avoids the screening of the thin greensheets by forming self-supporting fusible particulate metal electrode layers, interposing them with the thin greensheets and sintering the assembly to form the multilayer substrates such as integrated capacitors.
Abstract:
An apparatus in which a deformable or compressible intraocular lens can be received and staged for insertion into a patient's eye. The apparatus has an elongated compression chamber with proximal and distal ends and a longitudinal passageway, having an inner surface, extending between the ends. The portion of the passageway adjacent to the proximal end forms a loading area in which the passageway gradually decreases in size for causing an intraocular lens to be deformed or compressed as the lens is moved along the passageway. A staging area having a top and bottom passageway wall, communicates with the loading area with the passageway wall including alignment means for retaining the intraocular lens in a deformed or compressed condition. A portion of the passageway is sized to retain the intraocular lens in the deformed or compressed condition. A portion of the passageway defining the loading area comprises a surface which includes an opening and a slot or groove for permitting withdrawal of forceps used for pushing the intraocular lens through the loading area and into the staging area for deforming or compressing the lens.
Abstract:
A grab mechanism device for transporting a plurality of vertically oriented plates having lift lugs from a holding container such as a vat. The grab mechanism is mounted on a vertically movable load frame. The grab mechanism and load frame overlie the vat. An aligner frame is slidably mounted relative to the load frame and has guides for aligning said aligner frame with the holding container and also overlying the plates. The load frame can be lowered relative to the aligner frame forming part of the grab mechanism in position to engage the lift lugs of the plates. The grab means is selectively controlled to engage a set of the plates in the container or vat.The plates are lifted out of the container by lifting the load frame and grab mechanism relative to the aligner frame.The aligner frame includes "combs" for interdigitally separating the bottom of the plates from one another after the plates have been lifted from the holding container. Then the load frame grab mechanism plates and aligner frame may be lifted clear of the container and moved by a crane, for example, to a remote location.The grabs means comprises a plurality of pivoted lug engaging means adapted to intersect the lift lugs on the plates to support the weight of the plates. The plurality of lug engaging means may preferably comprise alternating pairs controlled to selectively intersect lugs on alternating plates.
Abstract:
A system and method of providing control of prices in an on screen window having a price held for further transactions on an interface for traders of financial instruments. The interface contains a display of products for trading and respective prices for bids and offers. The user has a control device such as a computer mouse with a roller control. Selection of a particular product results in the display of the price of the product at the instant time the product is selected. The price is held until a confirming key or mouse stroke is received to initiate a trading action such as placing a new order, killing an existing order or hitting or lifting an order. The price can be altered by means of the roller control.
Abstract:
A cleaning method and related apparatus for cleaning semiconductor screening masks using an aqueous alkali detergent solution applied under high pressure simultaneously from both sides of the mask, followed by a drying step that uses air knives to blow off the mask surface any residual cleaner solution.
Abstract:
Greensheets having enhanced flexibility and strength are prepared from a greensheet casting composition comprising alumina or other ceramic having a mean particle size of less than about 1 micron and being substantially unimodal, a binder resin, a solvent system and a plasticizer. The greensheets may be formed having a thickness of about 50 microns using conventional greensheet fabricating devices. The greensheets are particularly suitable as dielectric layers for internal layer capacitors in a multilayer ceramic substrate. A preferred co-sintering heating profile to avoid blistering of the MLC package is also provided to form the capacitor containing MLC.
Abstract:
A cleaning method and related apparatus for cleaning semiconductor screening masks using an aqueous alkali detergent solution applied under high pressure simultaneously from both sides of the mask, followed by a drying step that uses air knives to blow off the mask surface any residual cleaner solution.