摘要:
A method of fabricating debris intolerant devices 30, and especially micro-mechanical devices such as DMDs, that allows wafers 22 to be sawn prior to completing all fabrication steps. Some devices are too fragile to allow cleaning operations to be performed after fabrication of the device. A solution is to saw and clean the wafers prior to completing the fabrication steps that make the device fragile. To prevent having to process the chips 30 individually, a substrate wafer 28 is attached to the backside of the dicing tape 24. This substrate wafer holds the sawn chips 30 in alignment allowing the remaining fabrication steps to be performed in wafer form.
摘要:
A process for forming a smooth conformal refractory metal film on an insulating layer having a via formed therein. This process provides extremely good planarity and step coverage when used to form contacts in semiconductor circuits and, in addition, offers improved wafer alignment capability as well as enhanced reliability which result from the smooth surface morphology. The process includes forming contact openings through an insulating layer to a semiconductor substrate; depositing a first blanket layer of titanium using deposition conditions that provide a conformal film that exhibits good step coverage at the contact opening; and forming a second blanket layer of titanium using deposition conditions that provide reduced surface asperity height. The process is ideally suited to forming an electrical interconnection system for semiconductor integrated circuit devices such as static or dynamic random access memories and is particularly useful in VLSI devices that incorporate multiple levels of interconnect.
摘要:
A method is provided for forming a contact plug (40) in a contact (34) on a semiconductor substrate (30). A dielectric layer (32) is applied to the substrate (30) and then etched to form the contact (34). A layer (38) is then formed over the dielectric (32) and the contact (34). The layer (38) is removed from all surfaces, except the vertical sidewalls (36) within the contact (34). A metal plug (40) is then deposited in the contact (34) forming cup-shaped layers (42). The nonselectivity of the layer (38) allows the metal of plug (40) to be applied to the contact (34) without encroaching upon the substrate (30) or forming bumps on the surface (44) of the dielectric (32).
摘要:
A user interface for multimedia centers advantageously utilizes hand-held inertial-sensing user input devices to select channels and quickly navigate the dense menus of options. Extensive use of the high resolution and bandwidth of such user input devices is combined with strategies to avoid unintentional inputs and with dense and intuitive interactive graphical displays.
摘要:
Systems and methods for controlling the effective dielectric constant of materials used in a semiconductor device are shown and described. In one embodiment, a method comprises providing a semiconductor substrate with a plurality of pillars formed thereon, depositing a first layer of dielectric material over a plurality of pillars, removing a portion of the first layer deposited over the plurality of pillars, and depositing a second layer of dielectric material over the plurality of pillars, where the second layer leaves a plurality of voids between the plurality of pillars.
摘要:
A compressed air filtering cartridge includes a housing and a filter in the housing, the filter having a thermal vent. In one embodiment the filter includes a wall portion having a first condition when below a predetermined temperature range in which the wall portion blocks flow of air between opposite sides of the wall portion. The wall portion has a second condition when above the predetermined temperature range in which the wall portion does not block flow of air between opposite sides of the wall portion. The cartridge may be part of a compressed air system, between a compressor and an air dryer.
摘要:
An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air pressure to open the recycling valve and thus drain coalesced oil from a sump under the influence of residual air pressure in the sump. The separator may include a fixture for mounting the separator to a vehicle, including a plurality of ports extending from an inlet port for directing air into the cartridge with a combined flow area at least equal to the flow area of the inlet port. The plurality of ports preferably extend at a right angle to the direction of flow of air through the inlet port. A safety relief valve on the separator releases air when the pressure exceeds a predetermined pressure.
摘要:
A user interface for multimedia centers advantageously utilizes hand-held inertial-sensing user input devices to select channels and quickly navigate the dense menus of options. Extensive use of the high resolution and bandwidth of such user input devices is combined with strategies to avoid unintentional inputs and with dense and intuitive interactive graphical displays.
摘要:
A fletching system including a sleeve positionable about an outer surface of an arrow shaft and at least one archery vane mounted to an outer surface of the sleeve. The sleeve has an initial inner diameter greater than an outer diameter of the arrow shaft and the sleeve is shrinkable to secure the fletching system to the arrow shaft. Methods for constructing a fletching system include mounting a shrinkable sleeve and at least one archery vane on an outer surface of the shrinkable sleeve and also attaching the fletching system with respect to an archery arrow.
摘要:
In an improved selection tungsten metallization system, a plurality of orifices (20) are cut into a first level dielectric layer (18). A nucleation layer (52), preferably Ti-W alloy, is then formed in each orifice (20) and on the outer surface of the first dielectric layer (18) in a second-level metallization pattern. A second dielectric layer (30) is deposited over the first dielectric layer (18) and the nucleation layer (52), and a reverse second level metallization pattern is used to etch slots (58) back down to the nucleation layers (52) and into orifices (20). Thereafter, tungsten is deposited by selective CVD to fill the first level orifices (20) and the second level slots (58) until the upper surfaces (62) of the tungsten conductors (60) are substantially coplanar with the upper surface (38) of the second dielectric layer (30).