Patent application number | Description | Published |
20090047143 | Method and system for high viscosity pump - Embodiments described herein provide systems and methods for high viscosity pumps including a noncompliant filter. One embodiment can include a multi-stage pump comprising an pump inlet flow path, a pump outlet flow path, a feed stage in fluid communication with the pump inlet flow path, a dispense stage in fluid communication with the feed stage and the pump outlet flow path, a noncompliant disposable filter for high viscosity fluid in a flow path between the feed stage and the dispense stage and a set of valves to selectively allow fluid flow through the multi-stage pump. | 02-19-2009 |
20090132094 | System and Method for a Variable Home Position Dispense System - Embodiments of the present, invention provide a system and method for reducing the hold-up volume of a pump. More particularly, embodiments of the present invention provide a system and method for determining a home position to reduce hold-up volume at a dispense pump and/or a feed pump. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement. | 05-21-2009 |
20100262304 | System and method for valve sequencing in a pump - Systems and methods for minimizing pressure fluctuations within a pumping apparatus are disclosed. Embodiments of the present invention may serve to reduce pressure variations within a fluid path of a pumping apparatus by avoiding closing a valve to create a closed or entrapped space in the fluid path and similarly, avoiding opening a valve between two entrapped spaces. More specifically, embodiments of the present invention may serve to operate a system of valves of the pumping apparatus according to a valve sequence configured to substantially minimize the time the fluid flow path through the pumping apparatus is closed (e.g. to an area external to the pumping apparatus). | 10-14-2010 |
20120057990 | System and Method for a Pump With Reduced Form Factor - Embodiments of the present invention provide pumps with features to reduce form factor and increase reliability and serviceability. Additionally, embodiments of the present invention provide features for gentle fluid handling characteristics. Embodiments of the present invention can include a pump having a motor driven feed stage pump and a motor driven dispense stage pump. The feed stage motor and the feed stage motor can include various types of motors and the pumps can be rolling diaphragm or other pumps. According to one embodiment, a dispense block defining the pump chambers and various flow passages can be formed out of a single piece of material. | 03-08-2012 |
20120070313 | SYSTEM AND METHOD FOR POSITION CONTROL OF A MECHANICAL PISTON IN A PUMP - Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities. | 03-22-2012 |
20120090704 | Liquid Flow Controller And Precision Dispense Apparatus And System - Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid. | 04-19-2012 |
20120288379 | System and Method for a Variable Home Position Dispense System - Embodiments of the invention provide a system, method and computer program product for reducing the hold-up volume of a pump. More particularly, embodiments of the invention can determine, prior to dispensing a fluid, a position for a diaphragm in a chamber to reduce a hold-up volume at a dispense pump and/or a feed pump. This variable home position of the diaphragm can be determined based on a set of factors affecting a dispense operation. Example factors may include a dispense volume and an error volume. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement. | 11-15-2012 |
20130101438 | CUSTOMIZABLE DISPENSE SYSTEM WITH SMART CONTROLLER - Embodiments disclosed provide a customizable dispense system implementing modular architecture, the customizable dispense system comprising a smart controller configured to operate various pneumatic pumps and motor pumps in various semiconductor manufacturing processes that are sensitive to defects in printed patterns. The smart controller is configured to, upon switching from communicating with a first pump to a second pump, automatically recognize the second pump and apply a control scheme to control the second pump, which may be a motor pump or a pneumatic pump. The switching may be due to physical disconnection of the first pump and physical connection of the second pump or it can be entirely done via software. The smart controller may be connected to track and a variety of devices, including smart filters. | 04-25-2013 |
20130220452 | Liquid Flow Controller And Precision Dispense Apparatus And System - Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid. | 08-29-2013 |
20140044570 | SYSTEM AND METHOD FOR A PUMP WITH ONBOARD ELECTRONICS - Embodiments of the present invention provide pumps with features to reduce form factor and increase reliability and serviceability. Additionally, embodiments of the present invention provide features for gentle fluid handling characteristics. Embodiments of the present invention can include a pump having onboard electronics and features to prevent heat from the onboard electronics from degrading process fluid or otherwise negatively impacting pump performance. Embodiments may also include features for reducing the likelihood that fluid will enter an electronics housing. | 02-13-2014 |
20140127034 | SYSTEM AND METHOD FOR POSITION CONTROL OF A MECHANICAL PISTON IN A PUMP - Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities. | 05-08-2014 |
20140231318 | METHOD AND SYSTEM FOR HIGH VISCOSITY PUMP - Embodiments described herein provide systems and methods for high viscosity pumps including a noncompliant filter. One embodiment can include a multi-stage pump comprising an pump inlet flow path, a pump outlet flow path, a feed stage in fluid communication with the pump inlet flow path, a dispense stage in fluid communication with the feed stage and the pump outlet flow path, a noncompliant disposable filter for high viscosity fluid in a flow path between the feed stage and the dispense stage and a set of valves to selectively allow fluid flow through the multi-stage pump. | 08-21-2014 |
20140361046 | SYSTEM AND METHOD FOR VARIABLE DISPENSE POSITION - Embodiments of the invention provide a system, method and computer program product for reducing the hold-up volume of a pump. More particularly, embodiments of the invention can determine, prior to dispensing a fluid, a position for a diaphragm in a chamber to reduce a hold-up volume at a dispense pump and/or a feed pump. This variable home position of the diaphragm can be determined based on a set of factors affecting a dispense operation. Example factors may include a dispense volume and an error volume. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement. | 12-11-2014 |
Patent application number | Description | Published |
20080247082 | Hermetically sealed disk drive assembly - A method for forming a seal for hermetically sealing a hard disk drive assembly. The method includes forming a solder channel within a top cover of a disk drive enclosure and disposing a solder preform on a base of the disk drive enclosure such that the solder preform aligns with the solder channel when the top cover is positioned on the base. | 10-09-2008 |
20090139652 | SYSTEM, METHOD AND APPARATUS FOR ULTRAVIOLET CURING OF ADHESIVES WITH LIGHT BEAM SHAPING IN DISK DRIVE MANUFACTURING - UV curing of adhesives with light beam shaping utilizes a spot curing process that focuses a limited amount of UV light onto a target area, such as glue dots. A focusing lens may be used to direct the UV light beam to the target area. The target areas have different geometrical shapes, and the UV light is advantageously concentrated in a more efficient manner. Beam-shaping optics or lenses are used to facilitate re-shaping and re-defining the UV-light beam. The UV beam may be defined and limited to a rectangular spot to improve the spot process quality and efficiency. | 06-04-2009 |
20090168212 | Dynamic test glide head calibration using laser adjustment - Methods and apparatus for the calibration and use of test glide head gimbal assemblies are disclosed. Calibration is performed by pulse laser adjustment of the flexure mounted to the glide head, while the head is flying above a media test disk having asperities of known dimensions. The calibration process normalizes the fly heights of glide heads used to measure defects on both upper and lower surfaces of disk drive media, allowing upper and lower surfaces to be scanned simultaneously. | 07-02-2009 |
20090266871 | METHOD AND APPARATUS FOR BEAM SOLDERING - Beam soldering involves using a beam of light emitted from a source to reflow adjoining pairs of solder pads on components being joined. In some scenarios, material between adjacent solder pads on at least one of the components is absorptive of a certain spectrum of light and, consequently, can be damaged by such spectrum of light. A beam soldering tool is configured with a filter through which the light from the light source travels to a plurality of adjoining pairs of solder pads. The filter filters out a certain spectrum of light which could otherwise be damaging to material between adjacent solder pads. | 10-29-2009 |
20100067150 | METHOD OF UTILIZING A SOLDER REFLOW CHANNEL IN THE FORMATION OF A HARD DISK DRIVE - A method of utilizing a solder reflow channel in the formation of a hard disk drive is disclosed. The method provides a first hard disk drive component having at least one solder reflow channel, the at least one solder reflow channel for retaining a predeposited solder material. The solder reflow channel is utilized to provide a solder location for coupling the first hard disk drive component and a second hard disk drive component to the predeposited solder material. | 03-18-2010 |
20110310471 | SYSTEM, METHOD AND APPARATUS FOR ULTRAVIOLET CURING OF ADHESIVES WITH LIGHT BEAM SHAPING IN DISK DRIVE MANUFACTURING - UV curing of adhesives with light beam shaping utilizes a spot curing process that focuses a limited amount of UV light onto a target area, such as glue dots. A focusing lens may be used to direct the UV light beam to the target area. The target areas have different geometrical shapes, and the UV light is advantageously concentrated in a more efficient manner. Beam-shaping optics or lenses are used to facilitate re-shaping and re-defining the UV-light beam. The UV beam may be defined and limited to a rectangular spot to improve the spot process quality and efficiency. | 12-22-2011 |
20130074323 | HERMETICALLY SEALING A DISK DRIVE ASSEMBLY - A method for forming a seal for hermetically sealing a hard disk drive assembly. The method includes forming a solder channel within a top cover of a disk drive enclosure and disposing a solder preform on a base of the disk drive enclosure such that the solder preform aligns with the solder channel when the top cover is positioned on the base. | 03-28-2013 |
20130168370 | LASER-BEAM DEVICE, LASER-SOLDERING TOOL AND METHOD, FOR LASER-SOLDERING CONNECTION PADS OF A HEAD-STACK ASSEMBLY FOR A HARD-DISK DRIVE - A laser-beam device for laser-soldering connection pads of a head-stack assembly (HSA) for a hard-disk drive (HDD). The laser-beam device includes a laser configured to provide a first beam of light, a rectangular flat-top beam-shaping (RFTBS) optic, and a focusing lens. The RFTBS optic is configured to shape the first beam of light into a second beam having a rectangular shape, and a substantially flat-top intensity profile in a far-field region. The focusing lens is configured to transform the second beam into a third beam aligned with connection pads of the HSA. The third beam of light has a substantially flat-top intensity profile and a rectangular beam shape matched to cover the connection pads, and is configured to generate heat about uniformly to reflow solder of the connection pads. A laser-soldering tool and a method, for laser-soldering connection pads of the HSA are also provided. | 07-04-2013 |
Patent application number | Description | Published |
20140142279 | Method for peptide synthesis - A new method based on the synthesis and use of novel N and C protecting agents. The new N-protecting agent, here referred to as V-Phenol, generates V-protected amino acids and can be successfully applied to all conventional peptide bond formations including active esters, N,N′-dicyclohexylcarbodiimide (DCC) or related dehydrating agents mixed anhydride methods, PC13 and related agents. The new C-protecting agent, here referred to as HONE, can be successfully applied to peptide synthesis as an active ester not only in combination with V-protected amino acids but also with other N-protecting agents such as Cbz, Boc, Fmoc, etc. | 05-22-2014 |
20140171372 | Treatments for Alzheimer's disease - New Treatments for Alzheimer's Disease utilizing gangliosides, glycoproteins, and replacement of non-mutant enzymes and chaperones, as well as enzyme up-regulation accomplished by a number of gene-therapy methodologies. | 06-19-2014 |
Patent application number | Description | Published |
20090129771 | DESIGN METHOD FOR WDM OPTICAL NETWORKS INCLUDING ALTERNATE ROUTES FOR FAULT RECOVERY - A procedure for designing WDM optical networks provides both working circuits and protection circuits for carrying traffic demands between node pairs. The protection circuits are activated for the purpose of network recovery in case of a fault on a working circuit. Each protection circuit is link-disjoint, and preferably node-disjoint, from its corresponding working circuit. The network is subdivided into logically defined rings, such that each working and protection circuit lies on one or more of the rings. In particular embodiments of the invention, the joint routing of circuits is carried out so as to minimize the total length of the working and protection circuits according to a length that includes a weight for each link. The weight is selected to promote the efficient packing of optical fibers with wavelength channels. | 05-21-2009 |
20090316715 | METHODS AND APPARATUS FOR SELF-ORGANIZED CACHING IN A CONTENT DELIVERY NETWORK - Methods and apparatus are provided for self-organized caching in a content delivery network. One or more requested content items are cached at a node in a content delivery network. The disclosed method determines if the content item is stored in a local cache; and, if the content item is not stored in a local cache, the following steps are performed: requesting the content item from another node; and storing the content item in the local cache it one or more predefined capacity criteria are satisfied. The content delivery network can be a hierarchical network or a non-hierarchical network. The predefined capacity criteria can evaluate a popularity index of the content item relative to other items stored in the local cache. | 12-24-2009 |
20100021165 | OPTICAL TELECOMMUNICATIONS NETWORK AND METHOD - An optical communications network architecture and associated method which employs time and wavelength-interleaving for homing between nodes/satellites and hubs and for grooming, while employing wavelength-division-multiplexed wavelength circuits between hubs without requiring cross-connects or routers therebetween. | 01-28-2010 |
20100129080 | Method Of Burst Scheduling In A Communication Network - Delay-sensitive burst scheduling in a network is carried out through communications between source and destination nodes. A distributed scheduler at each destination node selects timeslots for burst arrivals from requesting source nodes, irrespective of timeslot selections made by distributed schedulers at other nodes. | 05-27-2010 |
20120252464 | Method Of Load-Aware Dynamic Handover In Cellular Networks - A handover method is provided, in which a measure of signal strength is obtained between a user terminal and each of one or more candidate cells, relative to signal strength between the user terminal and a source cell. For candidate cells, a threshold is set that depends on a measure of loading of the source cell and a measure of loading of the candidate cell. For the target cell, a particular candidate cell is identified for which the measure of signal strength exceeds the threshold set for that particular cell. The user terminal is connected to the target cell. In specific embodiments, the threshold for each candidate cell depends on a load differential between the source cell and the candidate cell. | 10-04-2012 |
20130151688 | OPTIMIZATION MECHANISMS FOR LATENCY REDUCTION AND ELASTICITY IMPROVEMENT IN GEOGRAPHICALLY DISTRIBUTED DATA CENTERS - Various exemplary embodiments relate to a method for reallocating loading from a datacenter site to other datacenter sites in a cloud computing network using an objective function that defines a performance characteristic of the cloud computing network at each datacenter site and a derivative of the objective function, the method comprising: evaluating the derivative for each of a set of other datacenter sites; identifying based upon the evaluated derivatives a datacenter site in the set of datacenter sites that results in the smallest increase in the objective function; and reallocating loading among the datacenter site and the other datacenter sites based upon the evaluated derivatives and the identified other datacenter site. | 06-13-2013 |
20140096130 | REDUCING RESPONSE TIME VARIANCE OF VIRTUAL PROCESSORS - A capability is provided for reducing response variance of virtual processors. A controller receives a processing request. The controller may propagate the processing request toward multiple virtual processors hosted on multiple hardware devices contemporaneously. The controller may propagate the processing request toward a first virtual processor hosted on a first hardware device and propagate the processing request toward a second virtual processor hosted on a second hardware device based on a determination that a timeout period expires before a processing response is received from the first virtual processor. The timeout period may be determined based on one or more response time statistics of the virtual processor and one or more response time statistics of a physical processor. | 04-03-2014 |
20140143882 | SYSTEMS AND METHODS FOR PRESERVING PRIVACY FOR WEB APPLICATIONS - A system and method for preserving privacy includes selecting a plurality of lexicons and executing a plurality of random operations through at least one web application using the plurality of lexicons. The system and method models the plurality of random operations based on typical usage to mask actual operations or searches executed by a user. | 05-22-2014 |