Storage Data Recovery

 

Link_A_Media Devices offers a new class of data recovery solutions that far exceeds the performance of conventional methods deployed in peripheral storage devices.  Beyond enabling higher areal density from a given sensor/medium combination, these solutions offer many new adaptive features that, when used during drive manufacturing to overcome the impairments of the magnetic head/media or NAND media, deliver improved drive robustness and higher manufacturing yields. 

Link_A_Media Devices’ innovative and silicon-proven technology offerings for peripheral storage devices include: 

  • softMLTM provides in situ optimization of the data recovery channel parameters for each head/media/zone combination. It finds the Maximum-Likelihood (ML) solution adaptively to deliver the minimum achievable bit error rate (BER) for each operating point of the given head/media/zone combination.  softMLTM enables better utilization of heads and media as well as reduced test time for qualifying each HDD during manufacturing. 
     

  • softECCTM combines conventional Reed-Solomon (RS) codes with iterative decoding methods and a soft-output softMLTM detector to dramatically reduce the Sector Failure Rate (SFR) achieved for a given head/media/zone combination. It preserves all of the desirable features of the RS codes, including prescribed burst correction and mis-correction.softECCTM enables higher areal density or improved manufacturing yields, or both.
     

  • L-LDPC: Link_A_Media Devices’ Low Density Parity Check (LDPC) Coding provides performance gains by replacing conventional concatenated coding structures used in today’s HDDs with a single LDPC code.  Such architecture provides performance gain that is unprecedented since the introduction of PRML technology almost two decades ago. Link_A_Media Devices’ proprietary LDPC platform is developed to address the unique requirements of the data storage application to maximize the areal density for any given head/media combination or multi-level cell (MLC) NAND media.

     

     

  • qSYNC uses maximum-likelihood estimation methods to achieve rapid and robust  synchronization of the clock within the data recovery channel to minimize the overhead fields required. qSYNC improves the format efficiency, which may be used to reduce the flux density and improve SNR performance, ultimately resulting in higher manufacturing yield and product margin.  
     

  • IOP BusterTM architecture enables scalability within the controller to address various segments of SSD applications seamlessly.  It enables faster Read and Write transfers to achieve prescribed IOP requirements.

    These core data recovery technologies offer the following benefits to Storage OEMs:

    Highest storage density in terms of bits/cell or bits/unit area
    Lowest cost/Gigabyte
    Highest product reliability
    Highest manufacturing yields
    Fast in situ drive testing during manufacturing
    Highest data reliability

    Link_A_Media Devices offers custom SoC development and manufacturing in leading-edge 90nm and 55nm CMOS process technologies.

    A wide range of packaging options in FPBGA and TQFP are available for the smallest footprint and height to accommodate storage peripheral applications.

    Differentiated SIP technology is available to integrate DDR or Flash memory with the SoC on a custom substrate within the standard packages we offer.