Patents Assigned to Ritek Corporation
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Patent number: 6506543Abstract: A method of photolithography using super-resolution near-field structure. A super-resolution near-field structure is formed on a semiconductor chip comprising a substrate and a photoresist layer thereon. An incident light beam penetrates through the super-resolution near-field structure to expose the photoresist layer. While penetrating through the super-resolution near field structure, the intensity of the incident light beam is increased, and the aperture of the light beam is reduced. As a result, the line width of the pattern formed on the photoresist layer is narrowed. The super-resolution near-field structure has a first dielectric layer, a second dielectric layer and an active layer sandwiched between the first and the second dielectric layers. The active layer is formed of one of gallium (Ga), germanium (Ge), arsenic (As), selenium (Se), indium (In), tin (Sn), antimony (Sb), tellurium (Te), and silver (Ag).Type: GrantFiled: October 20, 2000Date of Patent: January 14, 2003Assignee: Ritek CorporationInventors: Tzu-Feng Tseng, Wen-Rei Guo, Kuei-Yen Wu
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Patent number: 6471365Abstract: A sidemarker light which has a light housing, an EL slice and a fastening mechanism. The light housing has a bottom plate with at least two through holes and a top cover attached to the bottom plate. The EL slice has a lighting portion and two conductive terminals. The fastening mechanism has a pair of terminal receivers and a pair of plugs. Each terminal receiver has a terminal-buckling portion and a plug-buckling portion. The terminal-buckling portions buckle the two conductive terminals. The plug has a coupling portion that is buckled by the plug-buckling portion and a through portion that passes through the through holes on the bottom plate.Type: GrantFiled: March 19, 2001Date of Patent: October 29, 2002Assignee: Ritek CorporationInventors: Shaw-Jong Wang, Cheng-Chung Chen
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Publication number: 20020145382Abstract: Here discloses a method has following steps: a coating process for coating a photosensitive-polyimide isolating wall on an organic electroluminescent display panel; a prebaking process; an exposure process; a post-exposure baking process; a developing process for shaping the polyimide-isolating wall as a reverse-trapezoid cross-section; and a curing process for making the polyimide-isolating wall possess electric, thermal and mechanical stability. This improves the stability and lifetime of the organic electroluminescent display panel.Type: ApplicationFiled: May 30, 2002Publication date: October 10, 2002Applicant: Ritek CorporationInventor: Tien-Rong Lu
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Patent number: 6435343Abstract: A disk magazine for accessing Compact Disks includes a bottom stage, a vertical shaft fixed and supported at the bottom stage, a prop-up piece being loaded with Compact Disks and having an opening through which the vertical shaft extends, a barrel tightly combined with the bottom stage at the lower end, and a lid tightly covering up the upper side of the bottom stage. The lid is provided with a fixing hole into which the tapering tip pole of the vertical shaft inserts, and two O-rings are used for sealing between the lid and barrel, as well as between the bottom stage and barrel respectively to prevent the disk magazine from the environmental contamination.Type: GrantFiled: October 10, 2000Date of Patent: August 20, 2002Assignee: Ritek CorporationInventors: Jyh-Ming Wu, Yu-Pan Pai, Huan-Chang Lin
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Publication number: 20020085375Abstract: The present invention discloses a vibration-activated light emitting indication apparatus comprising: a case or a carrier; an indicator plate, which is transparent and contains a pattern, including, for example, a logo, characters, and drawings; an electroluminescent laminate; a power supply, which powers the electroluminescent laminate; a vibration sensor IC, which senses the vibration caused by an external act of pressing or shaking on the apparatus, and then controls an inverter to activate the electroluminescent laminate. The above-mentioned apparatus may be mounted on any case, such as a DVD box, a watch box, a jewelry box and any other cases. The pattern on the transparent indicator plate can be highlighted by the light emitted from the electrolumienscent laminate, achieving a vivid image such that the case is elaborately ornamented.Type: ApplicationFiled: May 25, 2001Publication date: July 4, 2002Applicant: Ritek CorporationInventors: Shaw-Jong Wang, Joseph Shen, Chien-Hua Wu, Charen Yu
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Patent number: 6411574Abstract: A coding method for high-capacity storage medium is provided. The the physical location of the code is arranged in an annulus area at inner side of the inner most edge of the compact disk and/or the lead-in area such that the storage medium is accessible in the existing CD-R/CD-RW. The recording time of the existing CD-R/CD-RW can be expended from 80 to 100 minutes.Type: GrantFiled: September 14, 1999Date of Patent: June 25, 2002Assignee: Ritek CorporationInventors: Chien-Fang Su, Chwei-Jing Yeh
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Patent number: 6410115Abstract: A multi-rewritable optical recording medium includes a surface plasmon super-resolution layer. The surface plasmon super-resolution layer is a three-layer structure including a first dielectric layer, a second dielectric layer, and a metal layer sandwiched between said first dielectric layer and said second dielectric layer. The metal layer with a certain thickness performs the surface plasmon effect when a laser beam with a suitable wavelength irradiates thereon. By the design and arrangement of the surface plasmon super-resolution layer, the small size of information-carrying pits and the recording marks in the range of around 100 nm is accessible. As a result, the super-resolution without the limit of the optical diffraction is achieved.Type: GrantFiled: February 26, 2000Date of Patent: June 25, 2002Assignee: Ritek CorporationInventors: Din Ping Tsai, Chwei-Jin Yeh
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Patent number: 6405857Abstract: A transportation mechanism of magnetic handling for accessing Compact Disks. The transportation mechanism includes a reciprocating device having a base, an electromagnetic head provided on the base, a control unit controlling the reciprocating device such that the base is reciprocated between different processing positions, and a magnetic spacer. The Compact Disk, sandwiched by the electromagnetic head and the magnetic spacer as the magnetic spacer is attracted by the electromagnetic head, is further transported by the transportation mechanism whereby the damage due to bad suction for CDs is minimized. Comparing with the conventional suction means by vacuum, the transportation mechanism of the invention is also advantaged for the simple structure, easy maintenance, and low cost, thereby raising the production yield.Type: GrantFiled: October 18, 2000Date of Patent: June 18, 2002Assignee: Ritek CorporationInventors: Jyh-Ming Wu, Yu-Pan Pai, Huan Chang Lin
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Patent number: 6402558Abstract: An integrative memory card adapter capable of accommodating a compact flash card, a multi-media card, a digital card and a smart media card. By positioning contact pins and entrance slots in various locations on the memory card adapter according to the specifications and input/output contact positions of various memory cards, all four types of memory card are accommodated. The memory cards can be accommodated because the input/output contact points of each memory card are in contact with corresponding contact pins inside the slots. The contact pins are in turn wired to a printed circuit board with external connection.Type: GrantFiled: March 13, 2001Date of Patent: June 11, 2002Assignee: Ritek CorporationInventors: Shen Hung-Ju, Yu-Chuan Lin
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Patent number: 6404722Abstract: A method of increasing recording density and capacity of a compact disc. The compact disc has a transparent substrate and a data-recording region on the transparent substrate. To perform data access, a laser light beam emitting from a light source transmits through the transparent substrate and is incident on the data recording region. By inserting a optical plate with a super-resolution near-field structure between the light source and the compact disc, the light intensity of the laser light beam is increased and the aperture of the laser light beam is reduced. Therefore, the recording dimension of data recording region on the compact disc is reduced, and the recording density and capacity of the compact disc is increased. The super-resolution near-field structure is formed of a first dielectric layer, a second dielectric layer and an active layer sandwiched between the first and second dielectric layers.Type: GrantFiled: November 3, 2000Date of Patent: June 11, 2002Assignee: Ritek CorporationInventors: Tzu-Feng Tseng, Wen-Rei Guo, Kuei-Yen Wu
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Patent number: 6394266Abstract: A DVD retaining structure is constructed in a DVD holder plate inside a DVD case and adapted to hold an individual DVD, including a deformable keeper and a plurality of spring strips around said keeper, each spring strip having a free end terminating in a smoothly curved contact portion, the keeper having a plurality of recessed portions spaced around the periphery thereof and adapted to receive the contact portion of each of the spring strips, prohibiting the spring strips from rubbing against the DVD during its loading or unloading procedure.Type: GrantFiled: July 3, 2001Date of Patent: May 28, 2002Assignee: Ritek CorporationInventor: Shou Ming Chou
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Patent number: 6391395Abstract: The present invention is directed to a method of forming a polysilicon layer. A light shield layer having a super-resolution near-field structure is arranged on an amorphous silicon layer. The super-resolution near-field structure includes a first dielectric layer, a second dielectric layer, and an active layer between the first dielectric layer and the second dielectric layer. The light shield layer is irradiated by a laser beam having a first intensity to generate a transmitted laser beam having a second intensity. The second intensity is greater than the first intensity. An annealing process is performed to irradiate the amorphous silicon layer with the transmitted laser beam having a second intensity thereby converting the amorphous silicon layer into a polysilicon layer.Type: GrantFiled: October 23, 2000Date of Patent: May 21, 2002Assignee: Ritek CorporationInventors: Tzu-Feng Tseng, Yi-Ming Chen, Wen-Rei Guo
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Patent number: 6387467Abstract: An optical recording medium structure and its method of manufacture. The optical recording medium structure includes, from bottom to top, a transparent substrate, a first dielectric layer, a first buffer layer, a recording layer, a second buffer layer, a second dielectric layer, an optical compensation layer and a reflection layer. The optical recording medium structure is manufactured by forming the first dielectric layer, the first buffer layer, the recording layer, the second buffer layer, the second dielectric layer, the optical compensation layer and the reflection layer in sequence over the transparent substrate. The first buffer layer and the second buffer layer serves to prevent the diffusion of at least one element from the recording layer into the first and the second dielectric layer and vice versa. The optical compensation layer enhances thermal sensitivity of the recording layer during an optical read/write operation.Type: GrantFiled: October 23, 2000Date of Patent: May 14, 2002Assignee: Ritek CorporationInventors: Wei-Hsiang Wang, Min-Hui Huang
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Patent number: 6358589Abstract: An organic write-once optical recording medium includes a surface plasmon super-resolution layer. The surface plasmon super-resolution layer is a three-layer structure including a first dielectric layer, a second dielectric layer, and a metal layer sandwiched between said first dielectric layer and said second dielectric layer. The metal layer with a certain thickness performs the surface plasmon effect when a laser beam with a suitable wavelength irradiates thereon. By the design and arrangement of the surface plasmon super-resolution layer, the small size of information-carrying pits and the recording marks in the range of around 100 nm is accessible. As a result, the super-resolution without the limit of the optical diffraction is achieved.Type: GrantFiled: February 26, 2000Date of Patent: March 19, 2002Assignee: Ritek CorporationInventors: Din Ping Tsai, Chwei-Jin Yeh
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Patent number: 6348250Abstract: An optical recording medium is provided that includes a spirally grooved polymer substrate, a recording layer, a reflecting layer, and a protection layer. The recording layer includes one or a mixture of phthalocyanine dyes. The phthalocyanine dye includes a bicyclo-alkyl substituent, providing solubility in any of a plurality of solvents that will not damage the surface of the substrate.Type: GrantFiled: October 27, 1999Date of Patent: February 19, 2002Assignee: Ritek CorporationInventors: Shyh-Yeu Wang, Jen-Hua Chung, Chwei-Jing Yeh
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Patent number: 6348251Abstract: An inorganic write-once optical recording medium includes a surface plasmon super-resolution layer. The surface plasmon super-resolution layer is a three-layer structure including a first dielectric layer, a second dielectric layer, and a metal layer sandwiched between said first dielectric layer and said second dielectric layer. The metal layer with a certain thickness performs the surface plasmon effect when a laser beam with a suitable wavelength irradiates thereon. By the design and arrangement of the surface plasmon super-resolution layer, the small size of information-carrying pits and the recording marks in the range of around 100 nm is accessible. As a result, the super-resolution without the limit of the optical diffraction is achieved.Type: GrantFiled: February 26, 2000Date of Patent: February 19, 2002Assignee: Ritek CorporationInventors: Din Ping Tsai, Chwei-Jin Yeh
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Patent number: 6343882Abstract: An apparatus for developing a pixel-defining layer of an organic light emitting diode (OLED) display panel. The apparatus has a developing unit, a cleaning unit, a drying unit, a conveying unit and a control unit. The conveying unit transports the display panel to each of the connected units. The control unit determines a conveying order and a conveying time of the conveying unit so as to precisely control a processing time of the display panel in each of the units connected with the conveying unit. The conveying unit continuously transports the display panel to the developing unit, the cleaning unit and the drying unit in sequence to complete the developing process. Thereby, the apparatus can precisely control the predetermined developing time, the quality of pixel-defining layers and effectively reduce the period of the developing process and the labor cost.Type: GrantFiled: May 4, 2000Date of Patent: February 5, 2002Assignee: Ritek CorporationInventors: Yih Chang, Tien-Rong Lu
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Patent number: 6326735Abstract: A long-life type colorful electroluminescent (EL) display panel is disclosed. The EL display panel comprises a luminescent laminate, two electrodes located at the two sides of the luminescent laminate, several terminals, and a display surface. One of the two electrodes includes plural separated sub-electrodes. Each sub-electrode comprises at least one branch portion and a bus bar connecting at least one branch portion to one of the terminals. Each of the branch portions in one sub-electrode is accompanied with one branch portion in a sub-electrode different from the one sub-electrode, and extends in parallel thereto in a position corresponding to a portion of the display surface which is representative of substantially the same area. By means of the above structure, the display panel will have a life span more than double the normal and can display colorfully.Type: GrantFiled: July 24, 2000Date of Patent: December 4, 2001Assignee: Ritek CorporationInventors: Shaw-Jong Wang, Chi-Jung Shen
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Patent number: 6306478Abstract: An optical recording layer of an optical recording medium comprises a dye material represented by the formula (I), wherein R1 is a hydrogen atom, a methyl group, or an ethyl group, R2 and R3 each is, independent from each other, a substituted or unsubstituted C1 to C12 alkyl group, A⊖ is an anion selected from the group consisting of halogen atoms, ClO4⊖, BF4⊖, PF6⊖, SbF6⊖, CF3SO2⊖, C2F5SO3⊖, CF3COO⊖, and CH3C6H4SO3⊖, X is hydrogen, alkyl, alkoxy, halogen, nitro, or fused benzene, Y is hydrogen, alkoxy, halogen, alkyl, aryl, alkoxycarbonyl, aryloxycarbonyl, alkylamine, arylamine, alkylamide, arylamide, alkylsulfonyl, aryl sulfonyl, alkoxysulfonyl, aryloxysulfonyl, nitro, or cyano groups.Type: GrantFiled: January 6, 2000Date of Patent: October 23, 2001Assignee: Ritek CorporationInventors: Hui-jen Chen, Chang-sheng Huang, Mei-jung Hu, Yi-shiu Lin, Shyh-yeu Wang, Chwei-jin Yeh
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Patent number: 6285652Abstract: A pre-recording type optical recording medium includes a surface plasmon super-resolution layer. The surface plasmon super-resolution layer is a three-layer structure including a first dielectric layer, a second dielectric layer, and a metal layer sandwiched between said first dielectric layer and said second dielectric layer. The metal layer with a certain thickness performs the surface plasmon effect when a laser beam with a suitable wavelength irradiates thereon. By the design and arrangement of the surface plasmon super-resolution layer, the small size of information-carrying pits in the range of around 100 nm is accessible. As a result, the super-resolution without the limit of the optical diffraction is achieved.Type: GrantFiled: February 26, 2000Date of Patent: September 4, 2001Assignee: Ritek CorporationInventors: Din Ping Tsai, Chwei-Jin Yeh