Abstract: A method of writing product servo sectors to a disk of a disk drive is disclosed. The disk comprises a plurality of spiral tracks, wherein each spiral track comprises a high frequency signal interrupted by a sync mark at a sync mark interval. The sync marks in the spiral tracks are detected to synchronize a servo write clock used to open a demodulation window during which the high frequency signal in the spiral tracks is demodulated to generate a position error signal for maintaining the head along a first servo track while writing product servo sectors along the first servo track. The demodulation window is then shifted by an integer number of sync mark intervals to initiate a seek to a second servo track. The head is then used to write product servo sectors along the second servo track.

Abstract: The present invention is directed to a method and apparatus for reducing velocity errors when writing spiral servo information onto a disk surface of a disk drive. In one embodiment, a servo track writer is provided for moving a write head at a controlled velocity. The write head is used to write spiral servo information onto a disk surface. The write head is moved, using the servo track writer, at an actual velocity trajectory to simulate writing one spiral of spiral servo information. Differences between the actual velocity trajectory and a desired velocity trajectory are measured on a control sample by control sample basis over a window of control samples. The differences are integrated over the window. A gain, associated with the servo track writer controlling the velocity of the write head, is adjusted using the integrated differences.

Abstract: A method, medium, and apparatus controlling a hard disk drive, and more particularly, a method, medium, and apparatus controlling a track seek of a hard disk drive, where the hard disk drive compensates for a gain distortion and a phase delay caused by a notch filter and a VCM driver using a sinewave acceleration trajectory. According to the method of controlling a track seek of a hard disk drive, an ideal sinewave for obtaining a position y*(n), a velocity v*(n), and an acceleration a*(n), according to a sinewave acceleration trajectory, and a sinewave indicating a gain distortion and a phase delay may be integrated and a VCM driving current u(n) can be generated by the integrated sinewave for compensating for gain distortion and phase delay, compensating for a value C(j2?f) of the gain distortion and the phase delay caused by the notch filter and the VCM driver.

Abstract: A settling control method and apparatus perform an improved settling control regardless of a seek distance when a disc drive track seek control operation is performed. An adaptive settling control method used in controlling the track seek mode of the disc drive includes: controlling a head to converge into a target position and a target velocity along with an eigen vector by transiting an initial state of the head motion onto an eigen vector line of a system at the time transiting from an acceleration/deceleration control mode of the track seek mode to a settling control mode.

Abstract: A magnetic recording and reproduction apparatus includes an arm section pivotable about a pivoting shaft; a tape guide section provided on the arm section for guiding a magnetic tape; a capstan section for driving the magnetic tape so as to run; and a maintaining section provided on the capstan section. The arm section is pivotable between a first location and a second location. The first location is a location at which the information recording to and/or information reproduction from the magnetic tape is possible. The second location is a location at which the information recording to and/or information reproduction from the magnetic tape is not possible. When the arm section pivots from the second location to the first location, the maintaining section maintains a relative position of the arm section, which is in the first location, to the capstan section.

Abstract: A method of fabricating a write head for perpendicular recording is provided. The write head has a pole, a shield in proximity to the pole, and a gap between the pole and the shield. The method includes forming a pole layer on an undercoat layer, forming a mask over at least a portion of the pole layer, and forming the pole by removing material from the pole layer. The pole has a top surface, a first side, and a second side. The method further includes forming a first gap portion of the gap along the first side and along the second side of the pole, forming a protective layer over at least a portion of the first gap portion, removing the mask, and removing the protective layer. The method further includes forming a second gap portion of the gap over at least the top surface of the pole and forming the shield over at least the second gap portion.

Abstract: A magnetic head is disclosed that has first and second substantially flat soft magnetic pole layers that are magnetically coupled together in a backgap region that is removed from the medium-facing surface; a soft magnetic pedestal having a leading edge and a trailing edge, the trailing edge adjoining the second pole layer adjacent to the medium-facing surface, the leading edge defining a throat area that is spaced from the first pole layer by a submicron nonferromagnetic gap and defining an apex area that is spaced from the first pole layer by a greater separation than the gap, the throat area meeting the apex area at a throat height; and a plurality of substantially parallel, electrically conductive sections disposed between the first and second pole layers, the conductive sections disposed in a single layer that is aligned along a plane that intersects the pedestal and the backgap region.

Abstract: A method for manufacturing a pole tip structure for a magnetic head is provided. An etch stop layer is initially deposited after which a transfer layer is deposited. Further deposited is at least one masking layer. Reactive ion etching is then performed to define a trench in at least the transfer layer. A pole tip layer is then deposited in the trench to define a pole tip structure flanked at least in part by the transfer layer. A surface of the transfer layer or etch stop layer then remains in co-planar relationship with a surface of the pole tip structure.

Abstract: A bottom pole layer and a top pole layer respectively incorporate pole portion layers. Cross sections of the pole portion layers and a gap layer parallel to the top surface of a substrate are of the same shapes. The aggregate of the pole portion layers and the gap layer includes a first portion having a width W that defines the track width, and a second portion having a width greater than the width W of the first portion. L/W falls within a range of 2 to 5 inclusive, where L is the distance from a medium facing surface to the interface between the first portion and the second portion. S/(W×L) falls within a range of 5 to 40 inclusive, where S is the area of the cross section of the aggregate parallel to the top surface of the substrate.

Abstract: Provided are a thin film magnetic head and a method of manufacturing the same, which can locally miniaturized a pole width with high accuracy. A thin film coil is provided in a region located more rearward than a position (a first position) of a rear end of a top shield layer. A position of a surface of an underlayer of a rearward region of a write gap layer, i.e., the region in which the thin film coil is to be formed is lower than a position of a surface of an underlayer of a frontward region. Thus, a height (?m) of an apex portion formed of an insulating film decreases. Thus, a top pole can be formed so that a tip portion has a local miniature uniform width. Therefore, the pole width can be locally miniaturized with high accuracy.

Abstract: In a non-magnetic material layer, a concave portion is formed above a groove G. In addition, an auxiliary magnetic pole layer is formed having a convex portion which extends in the direction toward a main magnetic pole layer and which is placed in the concave portion. Accordingly, since a magnetic flux B passing in a perpendicular magnetic recording head from the main magnetic pole layer to the auxiliary magnetic pole layer is generated, an appropriate adjustment of the intensity of a magnetic field A generated from the main magnetic pole layer can be easily performed, and the edge of a recording track on a recording medium M can be clearly defined.

Abstract: A compression zone recording head is provided having the recording tape in contact or near contact with the recording read/write transducer elements in a compression zone of the tape passing over a transducing surface. The compression zone recording head comprises a flat or shallow contour head having a thin, hard, preferably conducting closure to provide wear protection to the transducers. In one embodiment of the invention, the transducers are located in a compression zone region where the recording tape contacts an edge of the transducing surface at a controlled wrap angle. In another embodiment, the transducers are located in a canopy zone region of the transducing surface due to bending of the tape due to the overwrap. The protective closure is preferably made of sputter deposited Al—Fe—Si, or alternatively of a deposited or bonded layer of Al—Fe—Si, Al—O—Ti—C, Zr—O—Ti, Si—N, Si—C or Zr—O.

Abstract: A magnetic disc apparatus having a magnetic head supporting mechanism which includes a slider, a load beam having a spring portion and a pivot, and a gimbal having a mounting portion on which the slider is mounted. The gimbal has flexible finger portions spaced from the load beam which support the mounting portion so that the slider is rotatable with respect to the pivot, and a base end portion which is joined to the load beam. The load beam has elongation portions extending with respect to both sides of the pivot and being connected together in a proximity of a tip end portion of the flexible finger portions so as to be spaced from the pivot of the gimbal and for delimiting a window. The pivot is provided on a projection portion of the load beam which projects in the window from a spring portion side of the window.

Abstract: An actuator latch system of a disk drive to lock an actuator having a swing arm installed at a base member, a voice coil motor coil joined to an end portion of the swing arm, and a magnet facing the voice coil motor coil, including a first and a second latch portion provided at the end portion of the swing arm; a latch lever provided at the base member, the latch lever having a first end portion engaged with the first latch portion when the latch lever pivots a first direction, and a second end portion engaged with the second latch portion when the latch lever pivots a second direction; a projection projecting from an edge of the magnet; and a magnetic latch pin provided at an end portion of the swing arm so that a magnetic force operates between the latch pin and the projection.

Abstract: The invention includes an impact rebound crash stop pivoting about a pivot between the top and bottom yoke of an actuator magnet assembly. The impact rebound crash stop includes a latch bias tab magnetically attracted to the voice coil magnet when it is near. The invention further includes a proximity latch allowing the actuator to stay on the ramp when not in use. The invention includes the operation of actuator arms embedding part of the magnetic proximity latch, actuators, and disk drives using the crash stop and proximity latch.

Abstract: A recording head for use in magnetic storage devices is disclosed. The recording head includes a transducer that is bi-directionally movable with respect to a magnetic medium surface of the magnetic storage medium, thereby enabling improved positioning of the transducer during read and write operations of the transducer. The recording head further includes a slider body and an interleaver assembly that is interposed between the transducer and the slider body. The interleaver assembly includes a flexure assembly having a plurality of resilient flexure beams. A motor assembly incorporated into the recording head can be selectively actuated to cause movement of the flexure assembly and corresponding movement of a portion of the interleaver assembly and the transducer body. The flexure assembly is configured to constrain motion of the transducer in vertical and horizontal directions with respect to the magnetic medium surface to allow for enhanced transducer positioning.

Abstract: A micro-actuator assembly, which includes a first micro-actuator. The first micro-actuator includes: Two pivot spring pairs coupling to first stator and second stator. Two flexure spring pairs and pitch spring pair coupling to central movable section, which includes signal pair paths coupling to read-write head of a slider. The central movable section positions read-write head and conducts read-write head signaling. First micro-actuator electrical stimulus is through some of its springs. Micro-actuator assembly may include second micro-actuator with third stator and fourth stator interacting with central movable section. The second micro-actuator may also provide motion sensing, possibly indicating collision with the rotating disk surface being accessed. The invention includes head gimbal assemblies, actuator arms, actuator assemblies, voice coil assemblies and hard disk drives containing various embodiments of these micro-actuator assemblies.

Abstract: Devices for reading or writing electromagnetic information include a wafer substrate piece disposed between an electromagnetic transducer and an electrostrictive or piezoelectric actuator. The substrate piece is shaped as a rigid body adjoining the transducer and as a flexible element connecting the body and the actuator. To fabricate, at least one electrostrictive layer and many transducers are formed on opposite sides of a wafer that is then cut into rows containing plural transducers. The rows are processed from directions generally normal to the wafer surface upon which the transducers were formed, by removing material to form a head, flexures and a media-facing surface on the head. Conductive leads are formed on a back surface of flexures connecting the transducer with drive electronics. The flexures are aligned with forces arising from interaction with the media surface and from seeking various tracks, reducing torque and dynamic instabilities and increasing actuator access time.

Abstract: A magnetic sensing element includes a composite film, a lower shield layer, and a lower electrode layer and an upper electrode layer for supplying a current perpendicular to the composite film. The composite film has an antiferromagnetic layer, a pinned magnetic layer, a nonmagnetic layer, and a free magnetic layer. The composite film has a top face and two side faces in a track width direction. Each of the two side faces has a bent position. The angle defined by the side face below the bent position and the top face is larger than the angle defined by the side face above the bent position and the top face. The bent portion preferably lies on the lower electrode layer or the lower shield layer.

Abstract: A magnetoresistive element has two magnetic layers and a nonmagnetic middle layer having organic molecules disposed between the two magnetic layers. The middle layer is thinner than 5 nm (50 ?). The magnetoresistive element exhibits a magnetoresistive effect as a function of the relative alignment of magnetizations of the first and the second magnetic layers and can be used in a magnetoresistive sensor in the based on GMR or TMR.

Abstract: A self pinned magnetoresistive sensor having an anitparallel coupled pinned layer structure including a high coercivity (high Hc) layer of TbCo.

Abstract: Disclosed are a high-sensitivity and high-reliability magnetoresistance effect device (MR device) in which bias point designing is easy, and also a magnetic head, a magnetic head assembly and a magnetic recording/reproducing system incorporating the MR device. In the MR device incorporating a spin valve film, the magnetization direction of the free layer is at a certain angle to the magnetization direction of a second ferromagnetic layer therein when the applied magnetic field is zero. In this, the pinned magnetic layer comprises a pair of ferromagnetic films as antiferromagnetically coupled to each other via a coupling film existing therebetween.

Abstract: A magnetoresistive read sensor includes a first shield layer and a first gap layer over the first shield layer. The read sensor further includes a spin-valve stack over the first gap layer. The spin-valve stack includes a seed layer over the first gap layer. At least a portion of the seed layer includes a soft-magnetic material. The spin-valve stack further includes an antiferromagnetic layer over the seed layer. The antiferromagnetic layer is magnetically decoupled from the seed layer. The spin-valve stack further includes a free layer over a first portion of the antiferromagnetic layer. The read sensor further includes a bias structure adjacent to the free layer. The bias structure is located over a second portion of the antiferromagnetic layer and is isolated from the seed layer by the second portion.

Abstract: An integrated circuit is described including internal circuitry and having at least one external connection. A pad cell is electrically interposed between the external connection and the internal circuitry, the pad cell comprising a first group of components adapted to protect the internal circuitry from transients at the external connection and providing, during normal operating conditions of the integrated circuit, a first signal path to the internal circuitry, and a second group of components providing a second signal path from the external connection to the internal circuitry. The second signal path is non-operable during the normal operating conditions but on application of a predefined voltage at the external connection becomes operable.

Abstract: A power controller is positioned within a current path between the line side and the load side of an electrical circuit. The power controller closes the current path in the presence of a control supply and opens the current path in the absence of the control supply. A power supply electrically connected to the current path provides the control supply. A sensor system receives power from the power supply, monitors the current in the current path and outputs a sensor signal indicative of a current condition within the current path. A logic controller also receives power from the power supply, receives the sensor signal and removes the control supply from the power controller when the sensor signal does not satisfy an established criteria. The sensor system may include one or both of an imbalance sensor for monitoring the current balance among two or more electrical lines and over-current sensors for monitoring current in individual lines.

Abstract: A protection apparatus for a semiconductor device includes a DC power source, a load, a semiconductor device arranged between the DC power source and the load and switches the load between a driving state and a stopping state, a comparator comparing a voltage drop across the semiconductor device with a predetermined reference voltage, and a cut off unit cutting a conduction of the semiconductor device between the DC power source and the load when the voltage drop is greater than the predetermined reference voltage. A constant of the circuit element is set so that the reference voltage is not greater than a critical voltage. The critical voltage is a product of the on-resistance of the semiconductor device when its channel temperature is at an upper limit of the permissible temperature, and a minimum current value which causes the channel temperature to reach the upper limit of the permissible temperature by the self-heating due to Joule heat.

Abstract: A solenoid control circuit that includes two switching networks that are selectively opened and closed in a current limit cycle to control the magnitude of the current flowing through the solenoid. The configuration of the switching networks is such that current flows through an energy dissipating resistor only when the solenoid is commanded off by the solenoid control circuit, and not during the current limit cycle. Thus, the energy dissipated by this resistor is reduced relative to other solenoid control circuits, making it more efficient, and reducing EMI emissions from the circuit while providing for a fast solenoid response.

Abstract: There is provided a static eliminator which comprises an ion generating portion in the form of tape. There is also provided a self-discharged static eliminator comprising an conductor provided with discharge whiskers in which the conductor is applied with a predetermined voltage. There is also provided a DC type of self-discharged fiber-like static eliminator which comprises plus fiber electrodes applied with plus voltage, minus fiber electrodes applied with minus voltage, a support disposed between the plus and minus electrodes for supporting the plus and minus electrodes and provided with insulation reserving member for preventing the spark discharge or short due to the access of the plus and minus electrodes.

Abstract: A method and apparatus for providing compressive connection with electrostatic discharge dissipative properties is disclosed. A compression connector is formed having an elastomeric material modified to provide a dissipative member, an electrostatically dissipative base member, and a connection to a ground to dissipate the charge generated when tension is applied to or released from the elastomer.

Abstract: An electrostatic chuck is provided which includes a circular ceramic plate having an electrostatic attractive electrode, a mounting surface for supporting a waferhich is formed on one of the main surfaces of the circular ceramic plate, an annular gas groove formed on the periphery of the mounting surface in the form of concentric circles with a gas inlet communicating with the annular gas groove, and a circular gas recess formed inside the ceramic plate and surrounded by the annular gas groove with a gas inlet communicating with the circular gas recess, wherein the annular gas groove and the circular gas recess are independently separated from each other by an annular rib protrusion, with a plurality of dotted protrusions being formed within both the annular gas groove and the circular gas recess.

Abstract: The object of the present invention is to provide an electrostatic chuck in which the surface can be kept smooth after being exposed to plasma, so as to protect a material to be clamped such as a silicon wafer from being contaminated with particles, and which is excellent in clamping and releasing a material to be clamped. According to the present invention, there is provided an electrostatic chuck comprising a dielectric material in which alumina is 99.4 wt % or more, titanium oxide is more than 0.2 wt % and equal to or less than 0.6 wt %, whose average particle diameter is 2 ?m or less, and whose volume resistivity is 108-1011 ?cm in room temperature, wherein the electrostatic chuck is used in a low temperature of 100° C. or less.

Abstract: An orientation-insensitive ultra-wideband coupling capacitor. The orientation-insensitive ultra-wideband coupling capacitor includes a plurality of external surfaces, a low frequency portion, and a high frequency portion. The high frequency portion is so disposed on, and electrically connected to, the low frequency portion so as to allow the orientation-insensitive ultra-wideband coupling capacitor to work identically when mounted on any external longitudinal surface of the plurality of external surfaces thereof and thereby be readily SMT compatible without regard to special orienting procedures.

Abstract: A novel multi-capacitor divider network in which two capacitors are fabricated in a single package, using a common dielectric material, is disclosed. In a preferred embodiment of the present invention, the multi-capacitor network comprises a high-voltage capacitor and a low-voltage capacitor fabricated in a single monolithic package, both fabricated from a class one dielectric material having a combined tolerance of plus or minus five percent. The use of the same class one dielectric material for both capacitors assures that the temperature coefficents are similar for both capacitors and, more importantly, that the tolerance of the ratio between the high-voltage capacitor and low-voltage capacitor is within a predetermined range.

Abstract: An electric double layer capacitor includes: a cell which includes a pair of polarizable electrodes impregnated with an electrolytic solution and disposed in opposed relation with a separator interposed therebetween; collector electrodes respectively attached to the polarizable electrodes; and a sealing member of a synthetic resin which seals a periphery of the cell. The collector electrodes extend outward of the sealing member through the sealing member in contact with the sealing member. The collector electrodes each have a rough surface portion which extends through the sealing member.

Abstract: A conducting polymer composite is made by compounding a conducting polymer and an ionic polymer so as to achieve good conductivity. A high resistance material generated also has a high withstand voltage. A solid electrolytic capacitor using this conducting polymer composite as its solid electrolytic layer achieves low ESR and high withstand voltage.

Abstract: An electrolyte solution for anodizing a metal and a capacitor comprising the anodized metal. The electrolyte comprises more than about 5%, by weight, and less than about 30%, by weight, water; about 0.1 to 20%, by weight, ionogen and an aprotic polar solvent. The ionogen comprises phosphoric acid and an alkanol amine in an amount, and ratio, sufficient to maintain a pH of about 4 to about 9.

Abstract: An impression creating apparatus or image display and method for a laptop computer is disclosed. The laptop computer has a cover panel with an exposed outer surface and a screen on an interior portion. The exposed outer surface of the laptop computer cover panel has a peripheral edge. The image display has a frame, a means for attaching the frame to the exposed outer surface of the laptop's cover panel, and an impression creating layer or image insert. The device can also have a translucent cover. The frame has a border at least partially surrounding a compartment. The image insert can be inserted into the compartment for creating the impression. The translucent cover can overlay at least a portion of the image insert.

Abstract: An improved structure of a computer housing comprising a front side board, a rear side board, a top side board, a bottom side board, a left side board, and a right side board, characterized in that a plurality of pivot members are hingedly disposed along the edges of the respective side boards, the side boards having one edge adjacent to other side boards, a plurality of securing seat plates are provided on the from side board for the mounting of a optical disc, a hard disc and soft disc, a holding seat plate is disposed on the rear side board for the mounting of a power source supply, and a plurality of the pivot members are formed along one edge of the front side board and a rear side board such that the computer housing can be spread out on as a flat plan. The present computer housing requires a small space for transportation and therefore the cost of transportation is greatly saved. In addition, the present invention provides a convenient installation and maintenance.

Abstract: An electronic device capable of receiving a member comprises a housing, a display unit, a first switch unit and a receiving device. The display unit is disposed in the housing and the receiving device is connected to the housing. The receiving device is movable between a first position and a second position to receive the member. When the display unit is switched from the first mode to the second mode by the first switch unit, the carriage moves from the first position to the second position.

Abstract: A computer workstation has interchangeable user interfaces, thereby to allow a single workstation to carry out a plurality of work functions. When the user interface is changed, the workstation visual display is correspondingly changed to show a format and information associated with the operative user interface. Functions available from the workstation CPU may also be changed.

Abstract: Embodiments of the present invention pertain to an apparatus for a shock absorber that allows a disk drive to move with respect to the chassis of a computer system. In one embodiment, the disk drive shock absorber includes an assembly joint and a flexure. The flexure is capable of being coupled to the assembly joint. The assembly joint is capable of being coupled to the flexure and the computer system's chassis. The shock absorber is created by coupling the flexure to the assembly joint. The shock absorber has a form that can be used to flexibly couple the disk drive's enclosure with the computer system's chassis without requiring an increase in size of the chassis.

Abstract: An anti-shock structure for a data storage device is proposed. The anti-shock structure mountable to an enclosure of an electronic device can protect a data storage device received in the anti-shock structure against shock coming from the enclosure of the electronic device. The anti-shock structure includes a base having a first positioning portion and at least a first position limit portion disposed thereon, and a circuit board having a second positioning portion and a second position limit portion. The data storage device is received in the base and electrically connected to the electronic device through the circuit board. The circuit board is movably mounted to the base with its second positioning portion being movably matched to the first positioning portion of the base for positioning the circuit board and its second position limit portion being engaged with the first position limit portion for preventing the circuit board from detaching from the base.

Abstract: The present invention relates to a plug-in electronic module which has: a housing, an electronic component arranged in the housing, at least one external electrical contact connected to the electronic component, where the electronic module can be plugged into a holding structure such that the external electrical contacts on the module come into contact with associated electrical contacts on a coupling partner during the plug-in operation, and a mechanical protective apparatus which protects the electrical contacts from mechanical contact when the module is not plugged in and which exposes the electrical contacts when the module has been plugged into the holding structure, so that they can come into contact with associated electrical contacts on the coupling partner. The invention also relates to a method for connecting such an electronic module to a holding structure.

Abstract: A computer system comprising a chipset, a PCI Express connector with a preset bandwidth, and a PCI Express daughter board with a bigger bandwidth, is provided. The chipset is provided with a PCI Express controller with the preset bandwidth and electrically connects to the PCI Express connector. The PCI Express connector has a trench formed at an edge thereof. The PCI Express daughter board has a connecting portion with a number of golden fingers greater than a number of contacts of the PCI connector. The PCI Express connector is capable to pair the daughter board with part of the golden fingers located outside the connector.

Abstract: A device with a PCB with forced airflow has a housing including a first panel (141) and a second panel (142). Within the housing is mounted a printed circuit board (111) with heat dissipating elements, an opening (112), a first surface (131) and a second surface (132). The first surface (131) of the printed circuit board (111) is located at a distance from the first panel (141) smaller than a distance between the second surface (132) and the second panel (142). To the printed circuit board (111) is mounted a fan (113) that covers the opening (112) and forces airflow from a space between the first surface (131) and the first panel (141) to a space adjacent the second surface (132).

Abstract: A computer system comprising a plurality of electronic components disposed within a chassis. The electronic components generate a cooling load of at least 50 CFM at 2 inches of water or greater. An air mover is disposed within said chassis and is operable to generate airflow of at least 50 CFM at 2 inches of water or greater. An air distribution system is coupled to the air mover and is operable to distribute the airflow to the plurality of electronic components.

Abstract: An intake opening is defined in a printed circuit board inside a fan cover mounted on the printed circuit board. The intake opening has a particular extent inside the fan cover. This intake opening contributes to improvement in the cooling efficiency of a fan as compared with a conventional intake opening. Moreover, the intake opening allows a sufficient space to remain on the front and back surfaces of the printed circuit board inside the fan cover. Electronic components and/or wiring patterns may be disposed in the space. This contributes to disposition of electronic components and/or wiring patterns at a higher density on the printed circuit board.

Abstract: A fool-proof device on the heatsink thermal module for the notebook computer is provided. With an interference member installed on one side of the case of the heatsink thermal module, when installing the heatsink thermal module, the interference member and a predetermined recognition area on the printed circuit board (PCB) can provide a fool-proof function to avoid assembling error of two modules with different standard but similar in appearance in the assembling process.

Abstract: An enclosure for a wireless device includes a first compartment and a second compartment. The first compartment is to house some or all of the electronic circuitry of the wireless device and is sealed from an exterior environment. The second compartment is adjacent to the first compartment and includes one or more piezoelectric fans to provide cooling for the first compartment. The second compartment is open to the exterior environment and provides physical protection for the one or more piezoelectric fans located therein.

Abstract: An apparatus for air-cooling an electronic device is disclosed. A contoured panel channels a flow of air within the housing of an electronic device so as to channel the flow of air more directly over heat producing elements such as the microprocessor and peripheral cards. A sensor can also be employed to determine whether the panel is present and properly placed. If not, measures can be taken to reduce the heat generated by the heat producing elements. For example, a warning can be displayed, or the microprocessor can be instructed to enter sleep mode.