Patent application number | Description | Published |
20090161259 | Asymmetric Load Beam for Improving Resonance Performance of Hard Disk Drive Suspension - A structure for a load beam used in hard disk drive devices includes an asymmetric structure. The load beam exhibits longitudinal asymmetry (i.e., is asymmetric along its long axis) in regard to the weight distribution, but has a center of mass that lies along its longitudinal axis due to the provisioning of counterbalancing features, such as the addition of material, the removal of material, or a combination of adding material and removing material, or the use of an asymmetrical damping layer. | 06-25-2009 |
20090168249 | FLEXURE BASED SHOCK AND VIBRATION SENSOR FOR HEAD SUSPENSIONS IN HARD DISK DRIVES - Systems and methods for flexure based shock and vibration sensor for head suspensions in hard disk drives. Specifically, this invention deals with operational shock and vibration management within a hard disk drive. In one implementation, the assembly includes a circuit embedded optical waveguide sensor that includes a flexible electrical circuit board with a configuration of either a single or multi layers of conductor traces, a thin flexure gimbal for carrying and flying a HDD slider, a consecutive sensing layer constructed by an optical core and by clad construction with a configuration of either a single core array or a plural core array, an optical loop formed by light input and an output core, optical grating disposed on the consecutive sensing layer forming an optical grating waveguide sensor, a light emitter for injecting light into the optical core, and a receiver receiving the output light from the optical core. | 07-02-2009 |
20100046351 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - Disclosed are various techniques for reduction of the magnitude of the residual stress in the HDD gimbal circuits, or more specifically, the residual plastic strain. Various trace structures of the gimbal circuits as well as stress suppressors are utilized to achieve the reduction of the residual stress in the circuit. | 02-25-2010 |
20100195951 | MULTI-LAYER STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - A multi-layer structure and a method for manufacturing the multi-layer structure are provided. The multi-layer structure includes: a waveguide including one or more light coupling regions having a refractive index gradient; at least one organic material based active optical element disposed above the waveguide; wherein the one or more light coupling regions is configured to change characteristics of light propagating in the waveguide; wherein at least one of the one or more light coupling regions is configured to enhance light coupling between the waveguide and the active optical element. | 08-05-2010 |
20100195952 | MULTI-LAYER STRUCTURE - A multi-layer structure is provided. The multi-layer structure includes: a waveguide including a light coupling arrangement, wherein the light coupling arrangement is substantially non-wavelength selective; at least one light source disposed above the waveguide; and at least one photo detector disposed above the waveguide; wherein the at least one light source, the at least one photo detector and the waveguide include organic material, and wherein the waveguide, the light coupling arrangement, the at least one light source and the at least one photo detector are monolithically integrated. | 08-05-2010 |
20100196588 | METHOD OF MANUFACTURING A MULTI-LAYER STRUCTURE - A method of manufacturing a multi-layer structure is provided. The method may include forming a waveguide on a substrate; forming a light coupling arrangement in the waveguide, wherein the light coupling arrangement is substantially non-wavelength selective; forming at least one light source above the waveguide; and forming at least one photo detector above the waveguide. The at least one light source, the at least one photo detector and the waveguide comprise organic material. The waveguide, the light coupling arrangement, the at least one light source and the at least one photo detector are monolithically integrated. | 08-05-2010 |
20120190944 | DEVICES AND METHODS FOR NON-INVASIVE OPTICAL PHYSIOLOGICAL MEASUREMENTS - An optical measurement device and method of use provides non-invasive physiological measurements from a predetermined location on a body part of a user. The optical measurement device provides an illumination and detection assembly configured to generate and detect light of a predetermined wavelength range in the form of a photoplethysmography (PPG) signal, as well as a pressure detection assembly configured to detect an amount of pressure applied to the measurement device by the user being measured. A feedback unit, such as a portable display device, provides the user real-time feedback of the detected PPG signal and level of applied pressure so that the user may adjust the amount of applied pressure to improve the quality of the detected PPG signal. | 07-26-2012 |
20120200959 | FLEXURE BASED SHOCK AND VIBRATION SENSOR FOR HEAD SUSPENSIONS IN HARD DISK DRIVES - Systems and methods for flexure based shock and vibration sensor for head suspensions in hard disk drives. Specifically, this invention deals with operational shock and vibration management within a hard disk drive. In one implementation, the assembly includes a circuit embedded optical waveguide sensor that includes a flexible electrical circuit board with a configuration of either a single or multi layers of conductor traces, a thin flexure gimbal for carrying and flying a HDD slider, a consecutive sensing layer constructed by an optical core and by clad construction with a configuration of either a single core array or a plural core array, an optical loop formed by light input and an output core, optical grating disposed on the consecutive sensing layer forming an optical grating waveguide sensor, a light emitter for injecting light into the optical core, and a receiver receiving the output light from the optical core. | 08-09-2012 |
20120229934 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - Disclosed are various techniques for reduction of the magnitude of the residual stress in the HDD gimbal circuits, or more specifically, the residual plastic strain. Various trace structures of the gimbal circuits as well as stress suppressors are utilized to achieve the reduction of the residual stress in the circuit. | 09-13-2012 |
20140285926 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - A hard drive gimbal trace circuit includes: a stainless steel gimbal strut (SGST) configured to support a transducer and nullify a natural pitch angle of a flexure from mechanical-coarse adjustment of the SGST; traces forming a trace structure, and being plastically deformed at a high strain region from the mechanical-coarse adjustment of the SGST; and a first protrusion and a second protrusion being at least partially disposed under the high strain region. The SGST has an edge which is disposed on the transducer side to be spaced apart from the traces in the high strain region and extends substantially parallel to the traces. The first protrusion and the second protrusion extend from the edge in an orthogonal direction to an extending direction of the traces and across the traces, and are disposed side by side in the extending direction of the traces. | 09-25-2014 |