Abstract
A hard disc drive (HDD) consists of many components such as a magnetic recording disc 103, base deck 102, and cover 101. In some embodiments, a cover 101 with a form-in-place gasket (FIPG) 104 and a base deck 102 are arranged to provide a sealed HDD. A final welding process is applied on final cover 100 to seal the drive hermetically. A magnetic recording disc 103 is rotatably supported within the housing. A data transducer is then controllably moved by an advance part to glide across the surface of the magnetic recording disc. Together with incorporated electronics linked to the printed circuit board assembly (PCBA) 105, which is affixed to an external surface base deck, data is then read and written to the magnetic surface. The PCBA has a Thermal Interface Material (TIM) 106 to help with heat dissipation from the controller chip to the base deck 102 during operation. This paper proposes options to increase the surface area on the base deck—and its ability to dissipate heat—by having heat sink features such as rows of vertically and horizontally oriented grooves or holes surrounding the contact surface adjacent the TIM.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Tee, Wei Leng; Bae, Min Won; Htaing, Khin Yuupar; and Sangrit, Thanakorn, "Method to Increase Heat Dissipation Through MDA Heat Sink Metrology", Technical Disclosure Commons, (May 11, 2025)
https://www.tdcommons.org/dpubs_series/8114