ESD protection surface charge control recording head
AssigneeSeagate Technology LLC
InventorsDaniel W. Olson, John M. Wolf, Declan Macken, Gavin L. Brinkley
Life of this patent
Estimating the term…
Abstract
Electrostatic discharge protection can be afforded to a data recording head in accordance with various embodiments. A data recording head may consist of a circuit having a preamp ground connected to a ground substrate via a ground trace. The ground trace can consist of a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line.
Claims18
An apparatus comprising a circuit comprising a preamp ground connected to a ground substrate via a ground trace, the ground trace comprising a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line, such that prior to the dice line being formed, the second leg shorts the first leg and creating the dice line removes a portion of the ground substrate and a portion of the second leg, which increases the resistance of the circuit by creating the open connection in the second leg, wherein the open connection comprises a conductive trace ending at an insulating connection.
A system comprising a controller connected to a surface charge control circuit comprising a preamp ground connected to a ground substrate via a ground trace, the ground trace comprising a first leg connected to the ground substrate and a second leg with an open connection extending from a dice line and terminating at an insulated location, such that prior to the dice line being formed, the second leg shorts the first leg and creating the dice line removes a portion of the ground substrate and a portion of the second leg, which increases the resistance of the circuit by creating the open connection in the second leg, wherein the open connection comprises a conductive trace ending at the insulated connection.
A method comprising:
- connecting a preamp ground of a circuit to a ground substrate via a ground trace, the ground trace comprising first and second legs each separately connected to the ground substrate;
- and ground trace;
- removing a portion of the ground substrate and second leg of the ground trace along a dice line to terminate the second leg at an open connection extending from the dice line, such that prior to the dice line being formed, the second leg shorts the first leg and creating the dice line removes a portion of the ground substrate and a portion of the second leg, which increases the resistance of the circuit by creating the open connection in the second leg, wherein the open connection comprises a conductive trace ending at an insulating connection.
Dependencies are inferred from the claim text.