Combination Recording TRIZ Cases
- Side-Electrode VCSEL Assembly for Active Waveguide Alignment
Moving VCSEL electrodes to the side surfaces enables active waveguide alignment while avoiding complex back-side patterning.
- Single-Frequency RSOA Laser With Bragg Filtering for Thermal Stability
A transmission filter and apodized Bragg reflector lock an RSOA to a low-drift wavelength, keeping HAMR laser power and linewidth stable across temperature.
- Sterilization Chamber PLC Control Across Hardware Configurations
A modular PLC architecture separates core logic from chamber-specific data to simplify sterilizer upgrades, debugging, and state recovery.
- DBS Polarization Correction Using Dual Linear Signal Paths
Dual linear DBS signal paths are down-converted and digitally phase-gain corrected to handle varying polarization types with better reception quality.
- Optical Disc Encoding With Unbalanced DC Content for Copy Protection
Unbalanced DC content in selected disc areas disrupts data ripping while preserving normal CD and DVD playback.
- Optical Disc Bioassay Readout Using Standard Drive Error Mapping
Conventional optical drives detect disc bioassays by mapping ECC read errors to assay sites, avoiding hardware modification and lowering cost.
- Laser Diode High-Frequency Modulation for EMI and Noise Reduction
Spread spectrum current modulation and DC offset cancellation cut EMI, radiation noise, and mode-hopping in optical disk laser drivers.
- Tapered Bi-Layer Near-Field Transducer for HAMR Heat Reliability
A tapered gold-stable metal NFT bi-layer lowers plasmon generator temperature and material recession in HAMR write heads.
- HAMR Head NFT Structure With Stable Material for Thermal Deformation
A recessed NFT, thermal shunt, and stable material limit heat-driven deformation in HAMR heads while preserving near-field confinement.
- Noble Metal Waveguide Blocker Coating for HAMR Thermal Spot Confinement
A noble metal coating on a parabolic waveguide blocker suppresses background radiation and sharpens HAMR thermal spot confinement.
- HAMR Head Parameter Tuning for SMR Band Start Write Stability
Pre-adjusting laser, write, density, and flying-height settings in SMR start and non-user areas helps prevent HAMR read errors from buildup.
- HAMR Write Pole Heat Channel Adhesion Against Delamination
An adhesion layer between the diffusion barrier and heat channel prevents delamination while preserving heat transfer in HAMR write heads.
- HAMR Head Stable Material Layout for NFT Heat Deformation
A recessed stable material between the NFT and media-facing surface redistributes heat to limit deformation and extend HAMR head life.
- HAMR Head Coupler-Waveguide Layout for Stable Laser Power
A recessed waveguide input and trapezoidal coupler cut reflection and mode hopping in HAMR heads, improving laser power stability.
- Ferrimagnetic Capping Layer for HAMR Read Noise Isolation
Localized heating of a ferrimagnetic capping layer boosts target-track readback while limiting adjacent-track noise in HAMR media.