Abstract: A reading method for finding if a disc is placed reversely used in an optical disc drive is provided. The optical disc drive has a spindle motor, an optical pickup head having a lens, a fine actuator and a sled actuator. Firstly, a disc is placed into the optical disc drive. Next, the spindle motor rotates the disc. After that, a laser light of the optical pickup head is shot on the disc. Next, the lens is moved such that the laser light follows a single data track. Then, a central error signal of the lens is measured continuously. Afterwards, if the central error signal increases progressively, the optical disc drive finds the disc placed reversely, and the disc is ejected from the optical disc drive.

Abstract: A method of fabricating a RRAM includes: forming a bottom electrode; forming a first metal layer, a first metal oxide layer, and a second metal layer on the bottom electrode in sequence; performing an RTO process followed by a top electrode formation; oxidizing the first metal layer to a second metal oxide layer comprising a second oxygen content; and oxidizing the second metal layer to a third metal oxide layer comprising a third oxygen content; wherein the first metal oxide layer has a first oxygen content after the RTO process is performed, the third oxygen content being higher than the first oxygen content and the first oxygen content being higher than the second oxygen content.

Abstract: The present invention relates to a method of fabricating a vertical probe head, whereas the vertical probe head is formed by the combination of at least a probe, a bottom guide plate and a top guide plate having at least a hole matching the probe. The probe is fabricated by a LIGA-like process combining with the processes of photolithography, etching and electroforming, and so on, so that the probe is equipped with comparatively better precision, strength and reliability and yet can be custom-made for satisfying various demands. In addition, both the top and bottom guide plates are made by a means of non-mechanical machining, which respectively is fabricated by processing a substrate using means of photolithography, etching and mask so as to fabricate holes for matching with the aforesaid probe.

Abstract: A reading method for finding if a disc is placed reversely used in an optical disc drive is provided. The optical disc drive has a spindle motor, an optical pickup head having a lens, a fine actuator and a sled actuator. Firstly, a disc is placed into the optical disc drive. Next, the spindle motor rotates the disc. After that, a laser light of the optical pickup head is shot on the disc. Next, the lens is moved such that the laser light follows a single data track. Then, a central error signal of the lens is measured continuously. Afterwards, if the central error signal increases progressively, the optical disc drive finds the disc placed reversely, and the disc is ejected from the optical disc drive.

Abstract: The present invention relates to a method of fabricating a vertical probe head, whereas the vertical probe head is formed by the combination of at least a probe, a bottom guide plate and a top guide plate having at least a hole matching the probe. The probe is fabricated by a LIGA-like process combining with the processes of photolithography, etching and electroforming, and so on, so that the probe is equipped with comparatively better precision, strength and reliability and yet can be custom-made for satisfying various demands. In addition, both the top and bottom guide plates are made by a means of non-mechanical machining, which respectively is fabricated by processing a substrate using means of photolithography, etching and mask so as to fabricate holes for matching with the aforesaid probe.

Abstract: An air-driven power generating device, comprising: an air-driven portion; a planar magnet, disposed on the air-driven portion and having a plurality of magnetic poles for generating an alternate magnetic field, the planar magnet being driven by the air-driven portion so as to change the alternate magnetic field; a planar coil, disposed apart from the planar magnet for a distance, the planar coil having a plurality of induced regions so as to induce the alternate magnetic field to generate an induced electromotive force (EMF); and a control circuit, electrically connected to the planar coil.

Abstract: A warning device is disclosed, including an upper brace comprising an electric device and an output terminal; at least three luminous discharge tubes, which are pervious to light, provided with light sources and interconnected with each one another to form a loop and to establish electric contact. One of the tubes is connected with the output terminal described above to enable the illumination without shielding.

Abstract: A hot embossing auto-leveling apparatus which has an air-floating spherical bearing between a lower mold and a base, placed in a depression on the base, with the base housing an air inlet and an air outlet. A hot embossing auto-leveling method, comprising the steps of (1) performing an upward and downward coupling movement of the lower and upper molds; (2) adjusting the lower mold against the upper mold using the air-floating spherical bearing; (3) fixing the lower mold by under pressure in an orientation parallel to the upper mold; (4) placing a molded part on the lower mold; (5) evacuating, heating and pressurizing a working chamber; (6) cooling; and (7) opening.

Abstract: An integrated type probe card includes a circuit space converter having first and second contacts arranged at different density at two sides, probes connected to the contacts at one side of the circuit space converter that are arranged at a high density probes; a spring connector plate, which holds metal spring members in respective receiving holes thereof, a circuit board pressed on the metal spring members against the contacts at the other side of the circuit space converter that are arranged at a low density, and a level adjustment mechanism that accommodates the probes, the circuit space converter, the spring connector plate and the circuit board and enables the user to adjust the level status of the circuit space converter, keeping the circuit space converter electrically connected to the circuit board for transmitting test signal from the probes to the circuit board.

Abstract: An integrated type probe card includes a circuit space converter having first and second contacts arranged at different density at two sides, probes connected to the contacts at one side of the circuit space converter that are arranged at a high density probes; a spring connector plate, which holds metal spring members in respective receiving holes thereof, a circuit board pressed on the metal spring members against the contacts at the other side of the circuit space converter that are arranged at a low density, and a level adjustment mechanism that accommodates the probes, the circuit space converter, the spring connector plate and the circuit board and enables the user to adjust the level status of the circuit space converter, keeping the circuit space converter electrically connected to the circuit board for transmitting test signal from the probes to the circuit board.

Abstract: A hot embossing auto-leveling apparatus which has an air-floating spherical bearing between a lower mold and a base, placed in a depression on the base, with the base housing an air inlet and an air outlet. A hot embossing auto-leveling method, comprising the steps of (1) performing an upward and downward coupling movement of the lower and upper molds; (2) adjusting the lower mold against the upper mold using the air-floating spherical bearing; (3) fixing the lower mold by under pressure in an orientation parallel to the upper mold; (4) placing a molded part on the lower mold; (5) evacuating, heating and pressurizing a working chamber; (6) cooling; and (7) opening.

Abstract: A process for preparing carboxylic esters. A catalytic distillation column filled with acidic catalyst in solid phase is utilized. Alcohol is fed from the bottom of the catalytic distillation column, and carboxylic acid or carboxylic anhydride is fed from the top of the catalytic distillation column in such a manner that the carboxylic acid or carboxylic anhydride can remain in the catalytic distillation column for a sufficient time to cause the esterification to produce the carboxylic ester and water. An esterification pre-reactor can be connected in series with the catalytic distillation column to facilitate the esterification.

Abstract: A process for preparing carboxylic esters. A catalytic distillation column filled with acidic catalyst in solid phase is utilized. Alcohol is fed from the bottom of the catalytic distillation column, and carboxylic acid or carboxylic anhydride is fed from the top of the catalytic distillation column in such a manner that the carboxylic acid or carboxylic anhydride can remain in the catalytic distillation column for a sufficient time to cause the esterification to produce the carboxylic ester and water. An esterification pre-reactor can be connected in series with the catalytic distillation column to facilitate the esterification.

Abstract: A wafer mounting plate for use in a polishing apparatus is disclosed. The wafer mounting plate includes a metal plate and a screen mounted to a top surface of the metal plate. The metal plate is normally formed of circular shape and provided with a plurality of vacuum passageways therethrough. The metal plate has a bottom surface for engaging a membrane member and a wafer by vacuum through the plurality of vacuum passageways, and a top surface for engaging a pressurizing means, such as a pneumatic gasket. The screen mounted to the top surface of the metal plate has a multiplicity of apertures each of a size not larger than 0.5 mm in diameter. The screen is mounted sandwiched between the top surface of the metal plate and the pressurizing means. The screen effectively prevents debris of a wafer breakage from entering a vacuum system that is used for holding the wafer on the wafer mounting plate.

Abstract: An apparatus and a method for transferring a rotational torque from a hub frame to a hub shaft onto which a pad conditioning disc is attached are disclosed. The apparatus is constructed by a hub frame, a hub shaft and a hub spacer that is assembled to the hub shaft. Providing a great improvement over the conventional design wherein a hub spacer is mounted to a hub shaft by screw means, the present invention conditioning head is assembled together by frictionally engaging a key on the hub spacer to a slot opening on the hub shaft such that any catastrophic failure due to screw breakage can be avoided. The present invention novel frictional engagement further provides a more uniform torque transfer between the two components.

Abstract: A wafer mounting plate for use in a polishing apparatus is disclosed. The wafer mounting plate includes a metal plate and a screen mounted to a top surface of the metal plate. The metal plate is normally formed of circular shape and provided with a plurality of vacuum passageways therethrough. The metal plate has a bottom surface for engaging a membrane member and a wafer by vacuum through the plurality of vacuum passageways, and a top surface for engaging a pressurizing means, such as a pneumatic gasket. The screen mounted to the top surface of the metal plate has a multiplicity of apertures each of a size not larger than 0.5 mm in diameter. The screen is mounted sandwiched between the top surface of the metal plate and the pressurizing means. The screen effectively prevents debris of a wafer breakage from entering a vacuum system that is used for holding the wafer on the wafer mounting plate.

Abstract: A wet spray cleaning process for removing thick organic layers including hardened photoresist from the surface of silicon wafers yields low residual particle counts for photoresist thicknesses up to 3 microns, and maintains low residual particle density for oxide-covered wafer regions. The cleaning process uses multiple cycles of SPM/DI/APM/DI, without an intervening drying step therebetween.

Abstract: An ink-jet cartridge with a negative pressure ink reservoir includes a rigid body provided with an ejecting device; an ink reservoir provided within the rigid body, the ink reservoir including two relatively movable plates and a plate body having resilience. The plate body is provided between the two flat plates, and is sealed with the circumferences of the two flat plates to form an enclosed ink reservoir. During ink-jet printing, the pressure within the ink reservoir decreases and the two plates move closer to each other to compress the plate body and the resilience of the plate body causes a negative pressure within the ink reservoir that prevents ink leakage from the ink-jet cartridge.

Abstract: An ink cartridge for an ink jet printing device includes a rigid body having an ink chamber for containing ink within the body and an ink output port at one end of the body such that the ink within the ink chamber is output from the output port. A porous transmit medium is placed within the ink chamber and has one end adjacently connected to the ink output port such that the ink within the ink cavity is transmitted to the ink output cavity from the transmit medium by capillary action. The porous transmission medium is in an n-shaped form, including an input end, an output end, and an impermeable sheath between the input end and the output end. Thus, in the process of ink jet printing, at the instant when the ink within the ink output port is ejected, the porous transmit medium transmits the ink to the ink output chamber. As a result, no leakage of ink and smooth ink delivery are achieved. In addition, the structure of the cartridge is simple and assembly is early.

Abstract: The present invention provides any ink jet pen an apparatus for storing and printing ink, wherein a valve is connected between the ink reservoir and the ink chamber for controlling the ink flow between the ink reservoir and the ink chamber and adjusting the air pressure in the ink chamber to keep the pressure in the ink chamber within the allowed range as the ink gradually gets depleted or the environmental pressure changes. The valve having a plunger and a plunger chamber, wherein the plunger chamber is connected to the atmosphere via an atmospheric opening and connected to the ink chamber via a feedback opening which adjusts the pressure in the ink chamber to move the plunger. When a difference between the atmospheric pressure and inner pressure of the ink chamber develops, the plunger will be pushed by the pressure of the atmosphere or the ink chamber to determine whether the ink reservoir is connected to the ink chamber and to adjust the ink chamber inner pressure.