Short-tail head gimbal assembly testing fixture
OwnerYangguo Zhao, Siukei Wonginventors
Life of this patent
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Abstract
A method and system for testing the read/write head's dynamic electrical performance on an HGA level is disclosed. A head gimbal assembly (HGA) testing system has a spin stand holding a hard disk and a tester to send test signals through an HGA. The tester sends its signals through a pre-amplifier board. The pre-amplifier board is connected to the HGA using a probe card. A set of one or more pogo pins electrically connects the pre-amplifier board to the probe card. The probes of the probe card may be at a pre-determined pitch from the pogo pins.
Claims19
A test probe card, comprising:
- a set of one or more bonding pads to be electrically coupled to a preamplifier by a set of one or more pogo pins;
- a set of one or more probes to provide electrical contact with a head gimbal assembly;
- and
- a printed circuit board to electrically couple the one or more bonding pads to the one or more probes.
A head gimbal assembly (HGA) testing system, comprising:
- a hard disk to store data;
- a spindle chuck to support the hard disk;
- a mounting block to support a head gimbal assembly in a position to read and write data to and from the hard disk;
- a test probe card with a set of one or more probes to provide electrical contact with the head gimbal assembly;
- and
- a preamplifier to transmit signals to and receive signals from the head gimbal assembly via the test probe card.
A method, comprising:
- supporting a head gimbal assembly in a position to read and write data to and from a hard disk;
- using a test probe card with a set of one or more probes to provide electrical contact between the head gimbal assembly and a set of one or more pogo pins electrically coupled to a pre-amplifier board;
- transmitting signals to the head gimbal assembly via the test probe card;
- and
- receiving signals from the head gimbal assembly via the test probe card.
Dependencies are inferred from the claim text.