US 12,406,699 B1
Passive and active gas compensation techniques for data storage devices
Dongying Li, San Jose, CA (US); Qing Dai, San Jose, CA (US); Sukumar Rajauria, San Jose, CA (US); Ruihua Li, Cupertino, CA (US); Yixiang Zhang, San Jose, CA (US); Mehdi Habibollahzadeh, San Jose, CA (US); Jung-Seo Park, San Jose, CA (US); and Xiaokun Chew, San Juan Capistrano, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Feb. 19, 2024, as Appl. No. 18/581,343.
Int. Cl. G11B 33/14 (2006.01)
CPC G11B 33/1406 (2013.01) [G11B 33/1486 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A data storage device, comprising:
a container comprising a gas-permeable membrane;
a temperature-sensitive gas-releasing substance inside of the container,
wherein the temperature-sensitive gas-releasing substance is characterized by a gas-release profile, wherein:
below a critical temperature, the temperature-sensitive gas-releasing substance releases essentially none of a particular gas, and
above the critical temperature, and within a range of expected operating temperatures of the data storage device, the temperature-sensitive gas-releasing substance releases the particular gas in quantities that generally increase with increasing temperature;
a voice coil comprising a winding; and
a current generator coupled to the voice coil and configured to cause a current to flow through the winding,
wherein the container is situated within a core area of the winding.