Method to stress relieve a magnetic recording head transducer utilizing ultrasonic cavitation
Magnetic heads are fabricated by slicing and dicing wafers into row bars, which undergo frontside lapping and backside lapping. These lapping processes, as well as other processes, induce stresses on the row bars that are released prior to finalizing the magnetic head. Ultrasonic impact technology i...
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| creator | TAECHANGAM PHANPHAT BROTHERS ALAN H MORAVEC MARK D |
| description | Magnetic heads are fabricated by slicing and dicing wafers into row bars, which undergo frontside lapping and backside lapping. These lapping processes, as well as other processes, induce stresses on the row bars that are released prior to finalizing the magnetic head. Ultrasonic impact technology is used to release the stress in the row bars and to clean the row bars at the same time. Ultrasonic impact technology is used after the row bars have been wire bonded without having to de-bond the row bars. |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING PERFORMING OPERATIONS POLISHING SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Method to stress relieve a magnetic recording head transducer utilizing ultrasonic cavitation |
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