摘要:
An article supports a workpiece during thermal processing. At least three elongated support members, e.g., support pins, extend upwardly from an element such as support arms for supporting the workpiece. Each of the support members includes a first portion adjacent to the workpiece. A second portion extends downwardly from the first portion. The first portion can have a thermal response faster than the thermal response of the workpiece and the second portion can have a slower thermal response. A removable element may be mounted to the support member for adjusting the thermal response of the support member. With removable elements, the support members can be adjusted to cause no net transfer of heat to or from the workpiece.
摘要:
Low-pressure drop thermal assemblies, systems and methods of making low-pressure drop thermal assemblies for use in high power flux situations. A manifold body is attached to a distributor to form a subassembly. This subassembly is in communication with a substrate surface, which has a semiconductor device in need of thermal management thereon. An enclosed cavity is formed between the target substrate surface and the subassembly, and a seal of the cavity protects critical components residing on the active surface of the semiconductor device. The distributor includes a distributed liquid impingement microjet inlet array isolated from and parallel with a distributed microjet drain array for impinging cooling fluid and removing spent heated fluid in a direction orthogonal to a target surface for maximizing the heat transfer rate, and thereby providing high cooling flux capabilities while enabling low-pressure drops.
摘要:
A method for reducing contamination in immersion lithography includes retaining a semiconductor wafer on a support surface of a wafer chuck, the wafer chuck having a gap therein, the gap located adjacent an outer edge of the wafer, and the gap containing a volume of immersion lithography fluid therein; and providing a fluid circulation path within the wafer chuck so as to facilitate the radial outward movement of the immersion lithography fluid in the gap, thereby maintaining a meniscus of the immersion lithography fluid at a selected height with respect to a top surface of the semiconductor wafer.
摘要:
A wafer chuck assembly includes a first chuck section configured to hold a semiconductor wafer on a support surface thereof, and a second chuck section removably attached to the first chuck section. The first chuck section has a gap therein, the gap located adjacent an outer edge of the wafer, and the gap containing a volume of immersion lithography fluid therein. A fluid circulation path is configured within the first chuck section so as to facilitate the radial outward movement of the immersion lithography fluid in the gap, thereby maintaining a meniscus of the immersion lithography fluid at a selected height with respect to a top surface of the semiconductor wafer.
摘要:
An apparatus for flattening sintered ceramic electronic packaging substrates having opposing faces with undesired camber interleaves the substrates with spacers. At least one heating zone includes a heat transfer medium movable toward and away from the stack of interleaved ceramic substrates and spacers to apply a desired rate of heat by direct contact with or close proximity to sides of the stack. A plunger applies pressure to the stack in a direction normal to the faces of the substrates. At least one cooling zone includes a heat transfer medium movable toward and away from the stack to remove heat introduced in the heating zone by direct contact with or close proximity to sides of the stack. A reducing gas supply is operatively connected to the at least one heating zone and at least one cooling zone to supply gas to maintain a controlled reducing atmosphere within the apparatus.
摘要:
A multilayer ceramic substrate contains a ceramic coating which is different in composition than the main body of the multilayer ceramic substrate to control camber of the multilayer ceramic substrate during sintering. The primary component of the ceramic coating is a secondary component of the main body of the multilayer ceramic substrate.
摘要:
This invention relates to an apparatus or device for exchanging heat from electronic components or heat sinks, and method thereof. More particularly, this invention is directed to heat sinks which incorporates an innovative thermo-mechanically actuated device which modulates the capability of the heat sink to dissipate heat, and method thereof.
摘要:
The surface metallurgy of a green sheet may be controlled during processing to provide an increased resistance to low strength structural failure of the metal-ceramic interface under an input-output pad structure and increased pin-pull strength of input-output pads on alumina multilayer ceramic substrates. The surface area on a green sheet in the region where an input-output pad is to be screened is roughened in order to increase the contact surface area between the green sheet and the input-output pad. The mechanical interlock between the metal-ceramic interface is strengthened by the increased number of bonding points between the green sheet and the input-output metallurgy and the use of different screening materials.
摘要:
A punched slug removal system for punching a slug from a workpiece and removing the punched slug. The system includes a punch having a reciprocating travel path with a transition point where the punch changes direction. A die plate has an aperture into which a die bushing may be disposed. The die bushing provides support for the workpiece and has an opening through which the punch and a slug pass. A manifold supports the die plate and (if present) the die bushing and has a distribution channel and an orifice which direct a gas flow onto a slug attached to the punch in a direction perpendicular to the reciprocating travel path of the punch to remove the slug from the punch. The distribution channel is tapered to increase the velocity of the gas flow. The orifice is positioned at the top of the manifold adjacent the transition point of the reciprocating travel path of the punch. The manifold extends into the aperture of the die plate, reducing the cross sectional area of the aperture, and has a step formed under the punch. The system also includes a vacuum, offset relative to the punch and applied to the side of the punch opposite the orifice, to enhance removal of slugs from the punch.
摘要:
A method of fabricating a noise immune fuse having sub-micron dimensions which can be programmed by an electrically and thermally synchronized event. The fuse includes a pair of fuse links in close proximity of each other, a layer of thermally conductive and electrically insulating material thermally coupling the two links forming the pair, and means for programming the first link by prompting the second link to gate the energy transfer between the links via the coupling layer. By combining thermal and electrical pulses to perform the programming function, the reliability of the fuse structure is greatly enhanced when compared to that of a single element fuse.