摘要:
A stent delivery system may comprise a shape memory metal bumper which is expandable from a reduced profile configuration to an increased profile configuration. The stent delivery system comprises an inner tube, a stent disposed about the inner tube and a shape memory metal bumper disposed about the inner tube adjacent the proximal end of the stent.
摘要:
A stent delivery system may comprise a shape memory metal bumper which is expandable from a reduced profile configuration to an increased profile configuration. The stent delivery system comprises an inner tube, a stent disposed about the inner tube and a shape memory metal bumper disposed about the inner tube adjacent the proximal end of the stent.
摘要:
A paintball assembly capable of retaining a paintball in a loading chamber using a paintball catcher is disclosed. The paintball assembly includes a loading chamber, a detent, and a bolt. The loading chamber is coupled to a loading port to receive paintballs. In one embodiment, the detent includes a paintball catcher capable of catching the paintball as it is loaded into the loading chamber. In one example, the paintball catcher is a flexible paintball catcher extending into the loading chamber and is able to catch the paintball and hold it in a predefined position. When a trigger is pulled, the bolt pushes the paintball into a firing chamber while the paintball catcher releases the paintball.
摘要:
A paintball marker includes a main body and a dual feed adapter coupled to the main body. The dual feed adapter has a hollow interior, a top feed port and a bottom feed port. A top feed storage hopper is detachably connected to the dual feed adapter at the top feed port, and a bottom feed storage magazine is detachably connected to the dual feed adapter at the bottom feed port. A sleeve with an opening is rotatable within the dual feed adapter between a first position where the sleeve opening aligns with the top feed port for feeding therethrough a first group of paintballs from the hopper, and a second position where the sleeve opening aligns with the bottom feed port for feeding therethrough a second group of paintballs from the magazine.
摘要:
A method of forming a thin film resistor contact incorporates an etch-stop material to protect the underlying thin film resistor from a subsequent dry etching process to form a contact opening to the thin film resistor. More specifically, the method includes forming a thin film resistor, forming a first dielectric layer over the thin film resistor, forming a first opening through the first dielectric layer to expose an underlying portion of the thin film resistor, forming an etch-stop within the first opening of the first dielectric layer, forming a second dielectric layer over the etch-stop and the first dielectric layer, forming a second opening through the second dielectric layer to expose the underlying portion of the etch-stop, and forming a metal plug within the second contact opening, wherein the metal plug is in electrical contact with the thin film resistor by way of the etch-stop. Alternatively, in the case of an insulating etch-stop, the second opening through the dielectric layer is through the etch-stop, and forming a metal plug within the second contact opening, wherein the metal plug is in direct electrical contact with the thin film resistor.
摘要:
The capacitance between the gate electrode and the source/drain regions of a semiconductor device is reduced by forming sub-spacers of a low dielectric constant (K) material at the corners of the gate electrode above the source/drain regions. Subsequently, insulating sidewall spacers are formed over the sub-spacers to shield-shallow source/drain regions from subsequent impurity implantations. The resulting semiconductor device exhibits reduced capacitance between the gate electrode and the source/drain regions, while maintaining circuit reliability.
摘要:
A method for making 0.25 micron semiconductor chips includes annealing the metal interconnect lines prior to depositing an inter-layer dielectric (ILD) between the lines. During annealing, an alloy of aluminum and titanium forms, which subsequently volumetrically contracts, with the contraction being absorbed by the aluminum. Because the alloy is reacted prior to ILD deposition, however, the aluminum is not constrained by the ILD when it attempts to absorb the contraction of the alloy. Consequently, the likelihood of undesirable void formation in the interconnect lines is reduced. The likelihood of undesirable void formation is still further reduced during the subsequent ILD gapfill deposition process by using relatively low bias power to reduce vapor deposition temperature, and by using relatively low source gas deposition flow rates to reduce flow-induced compressive stress on the interconnect lines during ILD formation.
摘要:
Patterned metal layers are gap filled with HSQ and passivated to stabilize the dielectric constant of the HSQ substantially at the as-deposited value prior to oxide deposition by PECVD and planarization. Passivation and stabilization are effected by treating the as--deposited HSQ layer in a silane (SiH.sub.4) containing plasma.
摘要:
A single chamber of a vapor deposition system is used to deposit both Ti and TiN, subsequent to deposition of Al or Al alloy. Because such layers are deposited in the same chamber, the process requires fewer handling steps than the conventional process, thereby increasing throughput. Still further, only three physical vapor deposition chambers of the four of the apparatus are used, thereby allowing the fourth chamber to be used for other deposition.
摘要:
The present disclosure provides a foldable buttstock assembly for a pneumatic air gun. The foldable buttstock assembly has a foldable buttstock air fitting adapter connected to an air tank to a barrel unit of the pneumatic air gun. It also has an air channeling fitting to channel flow of the air gas. The pneumatic air gun can be operated while the air tank is in any position.