摘要:
A technique for installing a heatsink in an electronic assembly includes simultaneously applying force to multiple fastener assemblies that each retain a respective fastener in a body of the heatsink. The heatsink is then attached to the electronic assembly by actuating the fasteners while the force is simultaneously applied to the multiple fastener assemblies.
摘要:
A technique for installing a heatsink in an electronic assembly includes simultaneously applying force to multiple fastener assemblies that each retain a respective fastener in a body of the heatsink. The heatsink is then attached to the electronic assembly by actuating the fasteners while the force is simultaneously applied to the multiple fastener assemblies.
摘要:
An apparatus for attaching a heatsink to an electronic module mounted on a circuit card assembly includes a load frame; a load arm having a first end being pivotally coupled to one end of the load frame and a second end configured to receive at least a portion of a load screw therethrough; a spring plate disposed at an opposite end of the one end of the load frame, and configured to threadedly receive the load screw, opposite ends of the spring plate being retained while an intermediate portion threadedly receiving the at least a portion of the load screw is allowed to bow upwards toward a bottom of the opposite end of the load arm; and a heatsink disposed on the module. An intermediate portion of the load arm aligned with a center region of the module biases the heatsink toward the module when the load screw is threadedly engaged with the spring plate.
摘要:
An apparatus is provided having an integrated circuit device disposed on a printed circuit board and a heat dissipation device on the integrated circuit device. An actuation screw in a spring plate is urged against a portion of the heat dissipation device by tightening the actuation screw. The actuation screw may be prevented from being tightened beyond a mechanical constraint corresponding to a pre-set calibration for the specific compressive force, which may be greater than or equal to a minimum compressive force corresponding to the greater of a minimum thermal interface pressure and a minimum contact interface pressure. Additionally, a method is provided in which the actuation screw is tightened, but prevented from being tightened beyond the mechanical constraint.
摘要:
An installation apparatus of installing a land grid array (LGA) multi-chip module assembly to a printed wiring board is provided. A module holding member is attached to the printed wiring board. The module assembly is inserted into the module holding member. The module assembly is retained to the module holding member, which facilitates mechanical actuation of the LGA compression hardware. The module assembly is electrically grounded to the printed wiring board while the module assembly is retained to the module holding member.
摘要:
An apparatus for applying force to a multi-chip module, a printed wiring board and an interposer to facilitate electrical contact there-between, includes a plurality of load posts, a load transfer plate, a spring member, a backside stiffener plate and a spring actuator. The load posts are affixed to the multi-chip module and pass through the printed wiring board. The load transfer plate has a first stiffness. The spring member is disposed adjacent the load transfer plate and has a second stiffness that is less than the first stiffness. The a backside stiffener plate is disposed between the spring member and the printed wiring board and has a third stiffness that is greater than the second stiffness. The spring actuator engages the spring member to apply force to the backside stiffener plate, causing the substrate, the interposer and the printed wiring board to be held in contact.
摘要:
An installation apparatus and method for actuating the electrical connection of a land grid array module to a printed wiring board is provided. A backside stiffener with load posts is attached to a printed wiring board. A load plate, module, plurality of load columns, and springplate are operably connected to the load posts. An actuation screw operably connected to the springplate is rotated imparting an actuation force to the module. The backside stiffener includes a local stiffener, wherein the local stiffener causes a deflection in the printed wiring board complementary to the deflection of the module when the actuation force is applied.
摘要:
A method of installing a land grid array (LGA) multi-chip module assembly to a printed wiring board is provided. A module holding member is attached to the printed wiring board. The module assembly is inserted into the module holding member. The module assembly is retained to the module holding member, which facilitates mechanical actuation of the LGA compression hardware. The module assembly is electrically grounded to the printed wiring board while the module assembly is retained to the module holding member.
摘要:
A method and apparatus for applying a specified compressive force by a heat dissipation device for an integrated circuit are given, including placing the integrated circuit device onto a printed circuit board and then placing the heat dissipation device onto the integrated circuit device. The method includes tightening an actuation screw in a spring plate against a portion of the heat dissipation device. The actuation screw may be prevented from being tightened beyond a mechanical constraint corresponding to a pre-set calibration for the specific compressive force, which may be greater than or equal to a minimum compressive force corresponding to the greater of a minimum thermal interface pressure and a minimum contact interface pressure. Additionally, the specific compressive force may be less than or equal to a maximum pressure which may be exerted on the integrated circuit device.
摘要:
Mechanisms for interconnecting and distributing signals and power between PCBs are provided. A first PCB having land grid arrays (LGAs) and a first wiring layer designed for interconnect components on the first PCB, and a second wiring layer for connecting the components to a second PCB, are provided. The second PCB has opposed parallel first and second surfaces, the first surface having a LGA. A wiring layer designed to interconnect components on the second PCB, and a layer for interconnecting the components on the second PCB with the components on the first PCB, are provided. A first interposer couples to a LGA of a first surface of the first PCB and connects a component to the first PCB. A second interposer is sandwiched between and couples to a LGA of a second surface of the first PCB and to the LGA of the first surface of the second PCB.