Invention Grant
US07768789B2 Hard drive with metal casing and ground pin standoff to reduce ESD damage to stacked PCBA's 有权
具有金属外壳和接地针脚的硬盘驱动器,以减少堆叠PCBA的ESD损坏

Hard drive with metal casing and ground pin standoff to reduce ESD damage to stacked PCBA's
Abstract:
A case-grounded flash-memory drive has a printed-circuit board assembly (PCBA) with flash-memory chips and a controller chip. The PCBA is encased inside an upper case and a lower case, with a Serial AT-Attachment (SATA) connector that fits through an opening between the cases. The cases can be assembled with the PCBA by a screw-together or thermal-bond adhesive method. Triple-axis case-grounding tabs draw any electro-static-discharges (ESD) current off the upper case along a primary axis and onto a PCBA ground through a secondary axis that is screwed into the PCBA. An intermediary axis between the primary and secondary axes fits around a PCBA notch while the secondary axis passes through a metalized alignment hole on the PCBA for grounding. When the SATA connector is inserted into a host, the host ground sinks ESD currents collected by the triple-axis case-grounding tabs.
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