Agency for Science, Technology and Research

Marvell International Limited

Tiejun Zhou

Zhimin Yuan

Bo Liu

Siang Huei Leong

Jianzhong Shi

Li Wang

Chun Lian Ong

Weiya Xi

Khai Leong Yong

Kui Cai

Zhi Yong Ching

Kheong Sann Chan

Chao Bi

Pantelis Sophoclis Alexopoulos

Quan Jiang

Qide Zhang

Budi Santoso

Jing Zhang

Moulay Rachid Elidrissi

Chiew Leong Wong

Zhimin He

Guchang Han

Mengjun Liu

Jiang Feng Hu

Ke Gan

Leonard Gonzaga

Wuzhong Lin

Wee Kiat Lim

Sufui Sophia Tan

Kiat Min Cher

Yansheng Ma

Shengkai Yu

Yin Quan Yu

Kannan Sundaravadivelu

Ningyu Liu

Jianqiang Mou

Boon Long Ibrahim See

Venkataramanan Venkatakrishnan

Mingsheng Zhang

Cheng Peng Tan

Boon Hao Low

Chong Wee Lee

Jiangfeng Hu

Wai Lwin Phyoe

Phyu Hla Nu

Wei Hua

Cheng Su Soh

According to embodiments of the present invention, a method for manufacturing a recording medium for heat-assisted-magnetic-recording (HAMR) is provided. The method includes forming an underlayer on a substrate, the underlayer including a precursor material, epitaxially depositing an interlayer on the underlayer, forming a recording layer over the interlayer, and converting the precursor material to a converted material having a thermal conductivity that is higher than a thermal conductivity of the recording layer. According to further embodiments of the present invention, another method for manufacturing a recording medium for heat-assisted-magnetic-recording (HAMR) and a recording medium for heat-assisted-magnetic-recording (HAMR) are also provided.

Recording medium for heat-assisted-magnetic-recording (HAMR) and method for manufacturing the same

According to an embodiment of the present invention, a data storage device comprising a motor having a stator is disclosed. The stator may include a substrate having a first surface and a second surface opposite to the first surface; and a n-phase winding arrangement having n phase windings; wherein each phase winding comprises m flat fractional-pitch coils arranged on the first surface of the substrate such that the coils are spaced apart uniformly along a closed loop and connected in series; wherein each coil together with an angular section of the substrate between the coil and an adjacent coil of the same phase winding defines a stator pole-pair; and wherein m is an integer larger than 1.

Data storage device

A data storage device with a heat assisted magnetic recording (HAMR) system, a magnetic recording medium, and method for data storage are provided. The data storage device includes a magnetic recording medium, a magnetic recording head, a power supply, a controller and a switching device. The magnetic recording head includes a main pole having a surface area facing the magnetic recording medium. The controller is coupled to the magnetic recording head for controlling writing information to and reading information from the magnetic recording medium. The switching device electrically couples the power supply between the main pole and the magnetic recording medium in response to a signal provided from the controller when writing information to the magnetic recording medium. The magnetic recording medium comprises a plurality of layers, including a heating layer, a field enhanced conduction layer, and an electrode layer. The electrode layer is electrically coupleable to the power supply and the magnetic recording head for heating a portion of the heating layer opposite the magnetic recording head during writing of data by the magnetic recording head to the magnetic recording medium, the portion of the heating layer defined by an electric field applied to the field enhanced conduction layer.

Method and data storage device for laser free heat-assisted magnetic recording

Growing community of inventors

Singapore, Singapore

Tiejun Zhou