摘要:
A combination lock, including a plurality of dials and associated sleeve ns for each dial, has a plug member which is longitudinally movable to first and second positions and which is cooperable with the sleeve means for being locked in the first position when the dials are off combination. A manually operable latch member formed to engage a hasp is longitudinally movable from a latching position to an unlatching position only when the plug member is not locked in the first position. Longitudinally movable pullers are provided for moving the latch member from latching to unlatching position and from unlatching to latching position, respectively.
摘要:
A package for mounting, interconnecting, and cooling a large number of integrated circuit semiconductor devices having a sintered multilayer ceramic substrate provided with an internal metallurgy network made up of voltage planes, X and Y signal planes, and fan-out planes, with I/O pins on the bottom surface, and a plurality of asymmetrical solder pad clusters for flip chip bonding to a plurality of integrated circuit devices on the top surface, a plurality of integrated circuit devices bonded to the solder pad clusters, at least one row elongated engineering change pads surrounding each pad cluster, each pad provided with a severable surface link, the I/O pins connected to the internal network of the substrate and arranged in clusters with the powering voltages of each device located directly beneath the device thereby minimizing voltage drop, and signal voltages inputted through the I/O pins interspersed between the clusters of power pins, a cap for forming an enclosure over at least the top surface of the ceramic substrate, and a liquid cooling means associated with the cap for removing heat from the devices.
摘要:
A signal transmission line terminator for an off-chip driver circuit is disclosed in which each capacitor and resistor comprising each terminator are formed on the same chip separate from the driver circuit chip. The close proximity of the elements of the terminator reduce the path lengths therebetween to a minimum. The structure substantially eliminates the corresponding inductive reactance and concommitant .DELTA.I noise at high switching rates employed in high performance computers.
摘要:
A multiple chip module is provided with an engineering change (EC)/repair facility by means of delete lines located on both major surfaces of the module. In one embodiment, defective pin vias through the module are repaired by use of the delete lines on both major surfaces.
摘要:
A decoupling capacitor for highly integrated, fast switching logic circuit modules. The capacitor comprises stacked ceramic sheets having metallized surfaces. The sheets are connected together in groups. Alternate groups are connected to a first electrode. Intervening alternate groups are connected to a second electrode. The connections are all made to the same ends of all the sheets so that the current flows in opposite directions through adjacent facing plates.
摘要:
A wheel assembly is detachably connected to a mounting plate assembly thats attached to a corner of a luggage case. One assembly has a latch member resiliently urged into overlying relationship with an aperture that receives a tab on the other assembly, such tab having a cam surface that engages and displaces the latch member as the assemblies are being brought together, and a notch within which the latch member snaps after the assemblies are brought together thereby detachably retaining the one assembly to the other. An extension on the latch member is manually accessible allowing it to be manually displaced out of the notch to detach the assemblies.
摘要:
A roller unit for use as a caster for luggage, for example, has a sturdy -piece roller housing formed of sheet metal, the housing comprising a rectangular base with raised pads at opposite ends thereof and a roller-receiving shell defined by a pair of opposed U-shaped walls bent from opposite longitudinal edge regions of the base between the pads. Roller units are manufactured seriatim by metal forming operations that do not require deep-drawing.
摘要:
A decoupling capacitor for mounting on an integrated circuit multi-layer ceramic. A bottom layer electrode, is evaporated or sputtered onto a carrier. A high dielectric layer is deposited followed by the upper metallurgy and a top isolating layer. Via holes are etched to respective electrode layers, BLM deposited thereon followed by solder balls. The electrode is mounted onto the substrate, solder balls face down in contact with a compatible footprint.
摘要:
A latching device for luggage or the like cooperable with a hasp is constted so that a manually operable latch member is pivotally connected to a projection on a mounting plate for allowing the latch member to be rotated with respect thereto. A leaf spring biases the latch member into contact with the top surface of the projection. The projection includes stop surfaces for limiting rotation of the latch member in a first direction to a closed position wherein the latch member substantially overlies the mounting plate and for limiting rotation of the latch member in the opposite direction to an open position wherein the latch member is substantially perpendicular to the mounting plate. The leaf spring also biases a detent ball into contact with a surface of the latch member for releasably maintaining the latch member in the open and closed positions.
摘要:
A roller unit for use as a caster for luggage, for example, has a sturdy -piece roller housing formed of sheet metal, the housing comprising a rectangular base with raised pads at opposite ends thereof and a roller-receiving shell defined by a pair of opposed U-shaped walls bent from opposite longitudinal edge regions of the base between the pads. Roller units are manufactured seriatim by metal forming operations that do not require deep-drawing.