Patent ID: 8755195
Filing Date: 2014-06-17
Classification: G06F,H05K

Abstract:
1. A chassis-mounted printed circuit board assembly capable of discharging electro-static discharge (ESD) comprising: a printed circuit board having board mounting points formed in the printed circuit board close to peripheral edges of the printed circuit board, and a mounting area formed on a top of the printed circuit board around a central section of the printed circuit board on which a plurality of integrated circuit modules are mountable; wherein the mounting area comprises a hard disk controller coupled to a memory; one or more board mounting screws inserted through the printed circuit board mounting points to secure the printed circuit board on the top of a chassis with the board mounting screws tightened on the chassis; an isolation trench track formed in the printed circuit board in close proximity to the peripheral edges between the peripheral edges and the mounting area; and a discharge path to ground provided between the isolation trench track and the peripheral edges, the discharge path formed of conductive material and including the one or more hoard mounting screws and coupled to a power connector ground of the printed circuit board, wherein an ESD discharge current flows along the discharge path to reach to a ground reference point, such that the ESD discharge current circumvents the integrated circuit modules isolated from the discharge path to ground.