Patents by Inventor Wen-Hao Liu
Wen-Hao Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130121829Abstract: A bearing/stator set retainer structure includes a base seat, a stator set and a retainer member. The base seat has a bearing cup having an internal bearing hole in which a bearing is disposed. The stator set is assembled on the base seat and has an abutment section on one side distal from the base seat. The retainer member has at least one latch section for fixedly assembling the retainer member on the bearing cup. The retainer member further has at least one protrusion section in abutment with the abutment section and at least one inner flange section in abutment with the bearing. Accordingly, the retainer member can be easily disassembled from and reassembled with the bearing cup to facilitate reworking. Also, the retainer member is able to fix the bearing and the stator set at the same time to simplify the assembling process and prolong lifetime of the fan.Type: ApplicationFiled: November 15, 2011Publication date: May 16, 2013Inventors: Wen-Hao Liu, Guan-Chen Yin
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Patent number: 8431291Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage.Type: GrantFiled: October 25, 2011Date of Patent: April 30, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Publication number: 20130061196Abstract: The present disclosure provides integrated circuit methods for target-based dummy insertion. A method includes providing an integrated circuit (IC) design layout, and providing a thermal model for simulating thermal effect on the IC design layout, the thermal model including optical simulation and silicon calibration. The method further includes providing a convolution of the thermal model and the IC design layout to generate a thermal image profile of the IC design layout, defining a thermal target for optimizing thermal uniformity across the thermal image profile, comparing the thermal target and the thermal image profile to determine a difference data, and performing thermal dummy insertion to the IC design layout based on the difference data to provide a target-based IC design layout.Type: ApplicationFiled: September 7, 2011Publication date: March 7, 2013Applicant: Taiwan Semiconductor Manufacturing Company, LTD.Inventors: Ying-Chou Cheng, Boren Luo, Wen-Hao Liu, Tsong-Hua Ou, Chih-Wei Hsu, Wen-Chun Huang, Ru-Gun Liu
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Publication number: 20130014842Abstract: A symmetrical series fan structure includes multiple frame bodies made with single mold. Each frame body has a first through hole, a second through hole and a base having multiple connection members. The base is positioned in the second through hole on one side of the frame body and connected to the frame body via the connection members. The frame body has multiple fixing members and multiple fixing holes on the same side of the frame body as the base. The frame bodies are serially connected by means of inserting the fixing members into the fixing holes with the bases and the connection members of the frame bodies attached to each other. Accordingly, the frame bodies can be made with single mold and assembled to form the symmetrical series fan structure. In this case, the mold development cost is saved and the manufacturing cost is lowered.Type: ApplicationFiled: July 11, 2011Publication date: January 17, 2013Applicant: ASIA VITAL COMPONENTS CO., LTD.Inventor: Wen-Hao Liu
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Publication number: 20120313469Abstract: A waterproof and salt spray-resistant fan motor structure includes a base, a stator assembly, a case, and at least one circuit board. The base has a bearing cup vertically projected from one side thereof. The stator assembly is externally fitted around the bearing cup, and includes a plurality of silicon steel plates having windings mounted thereon. The case is arranged between the base and the stator assembly and internally defines a closed space, and the circuit board is located in the closed space. With these arrangements, the case protects the circuit board against corrosion by water and salt spray, enabling a fan to have largely extended service life.Type: ApplicationFiled: June 8, 2011Publication date: December 13, 2012Applicant: ASIA VITAL COMPONENTS CO., LTD.Inventor: Wen-Hao Liu
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Patent number: 8332797Abstract: The present disclosure relates to parameterized dummy cell insertion for process enhancement and methods for fabricating the same. In accordance with one or more embodiments, methods include providing an integrated circuit (IC) design layout with defined pixel-units, simulating thermal effect to the IC design layout including each pixel-unit, generating a thermal effect map of the IC design layout including each pixel-unit, determining a target absorption value for the IC design layout, and performing thermal dummy cell insertion to each pixel-unit of the IC design layout based on the determined target absorption value.Type: GrantFiled: December 2, 2010Date of Patent: December 11, 2012Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ying-Chou Cheng, Tsong-Hua Ou, Wen-Hao Liu, Ru-Gun Liu, Wen-Chun Huang
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Publication number: 20120219419Abstract: A round axial fan with balancing structure includes a hub, a ring-shaped band located around an outer side of the hub, and a plurality of blades extended between the hub and the ring-shaped band. At least one removable area is defined on the ring-shaped band for serving as a balancing area. By determining and removing one or more balancing areas at appropriate locations from the ring-shaped band, uneven weight distribution of the components of the round axial fan can be adjusted to enable stable rotation of the fan without producing vibration. The provision of the balancing area on the ring-shaped band of the round axial fan also enables reduced material and labor costs for adjusting the weight distribution of the fan.Type: ApplicationFiled: February 28, 2011Publication date: August 30, 2012Inventor: Wen-Hao Liu
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Publication number: 20120171024Abstract: A fan module includes a frame; a fan wheel; and a bearing holding structure having a hollow bearing cup, an elastic member, and a bearing. The frame has a base, on a center of which the hollow bearing cup is formed. A portion of an inner wall surface of the hollow bearing cup is radially inward protruded, forming a shoulder portion between the inner wall surface and the protruded portion. The elastic member includes a first and a second section tightly bearing on the shoulder portion and the inner wall surface, respectively, and the bearing is tightly supported on the elastic member. The fan wheel has a shaft extended through the bearing and is therefore rotatably mounted on the base and located in the frame. With the elastic member, the bearing is tightly received in the hollow bearing cup without colliding therewith, and stable operation of the bearing is ensured.Type: ApplicationFiled: January 2, 2011Publication date: July 5, 2012Applicant: ASIA VITAL COMPONENTS CO., LTD.Inventor: Wen-Hao Liu
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Publication number: 20120170882Abstract: A fan bearing retaining structure includes a fan base, a bearing and at least one resilient member. The fan base has a bearing bushing perpendicularly extending from one face of the fan base. The bearing bushing is formed with a bushing bore in which the bearing is disposed. An annular groove is formed on an inner circumference of the bearing bushing. The resilient member is fitted around the outer circumference of the bearing and correspondingly received in the annular groove. The resilient member serves to eliminate the gap between the bearing and the bearing bushing so as to avoid vibration of the bearing. In this case, the fan can operate more stably and the lifetime of the fan can be prolonged. Moreover, the noise can be minified.Type: ApplicationFiled: January 2, 2011Publication date: July 5, 2012Applicant: ASIA VITAL COMPONENTS CO., LTD.Inventor: Wen-Hao Liu
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Publication number: 20120144361Abstract: The present disclosure relates to parameterized dummy cell insertion for process enhancement and methods for fabricating the same. In accordance with one or more embodiments, methods include providing an integrated circuit (IC) design layout with defined pixel-units, simulating thermal effect to the IC design layout including each pixel-unit, generating a thermal effect map of the IC design layout including each pixel-unit, determining a target absorption value for the IC design layout, and performing thermal dummy cell insertion to each pixel-unit of the IC design layout based on the determined target absorption value.Type: ApplicationFiled: December 2, 2010Publication date: June 7, 2012Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ying-Chou Cheng, Tsong-Hua Ou, Wen-Hao Liu, Ru-Gun Liu, Wen-Chun Huang
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Publication number: 20120121410Abstract: A round axial fan with balancing structure includes a hub; a ring-shaped band located around an outer side of the hub to thereby define an annular flow passage between the hub and the ring-shaped band; a plurality of blades located in the annular flow passage; and a plurality of recesses circumferentially spaced on and along the ring-shaped band, each of the recesses internally defining a receiving space for at least one balancing element to fit therein. With these arrangements, it is able to achieve weight balance of the round axial fan for the latter to rotate in a balanced state and to avoid any vibration due to unbalanced rotation of the round axial fan.Type: ApplicationFiled: November 11, 2010Publication date: May 17, 2012Inventor: Wen-Hao Liu
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Publication number: 20120040278Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage.Type: ApplicationFiled: October 25, 2011Publication date: February 16, 2012Applicant: Taiwan Semiconductor Manufacturing Company, Ltd., ("TSMC")Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Publication number: 20110252387Abstract: Embodiments of the present disclosure provide methods and apparatuses for integrated circuits. An exemplary integrated circuit (IC) method includes providing an IC design layout that includes a design feature; determining a dimensional difference between the design feature and a corresponding developed photoresist feature of a photoresist layer; modifying the CD of the design feature to compensate for the difference, thereby generating a modified IC design layout; and making a mask using the modified IC design layout.Type: ApplicationFiled: April 12, 2010Publication date: October 13, 2011Applicant: Taiwan Semiconductor Manufacturing Company, Ltd. ("TSMC")Inventors: Wen Hao Liu, Hsien-Huang Liao, Chi-Cheng Hung, Wen-Chun Huang, Ru-Gun Liu
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Publication number: 20110217630Abstract: An intensity selective exposure photomask, also describes as a gradated photomask, is provided. The photomask includes a first region including a first array of sub-resolution features. The first region blocks a first percentage of the incident radiation. The photomask also includes a second region including a second array of sub-resolution features. The second region blocks a second percentage of the incident radiation different that the first percentage. Each of the features of the first and second array includes an opening disposed in an area of attenuating material.Type: ApplicationFiled: March 11, 2011Publication date: September 8, 2011Applicant: Taiwan Semiconductor Manufacturing Company, Ltd., ("TSMC")Inventors: George Liu, Kuei Shun Chen, Chih-Yang Yeh, Te-Chih Huang, Wen-Hao Liu, Ying-Chou Cheng, Boren Luo, Tsong-Hua Ou, Yu-Po Tang, Wen-Chun Huang, Ru-Gun Liu, Shu-Chen Lu, Yu Lun Liu, Yao-Ching Ku, Tsai-Sheng Gau
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Patent number: 7887221Abstract: One face of a substrate of a diffuser with a light condensing function is disposed with a plurality of prism rods; at least one inclined face of parts of prism rods is disposed with a rough diffusion face; the diffusion face may be positioned on any position of the inclined face of the prism rod; the diffusion face is disposed with a plurality of irregularly arranged raised and indented stripes perpendicular, not perpendicular or parallel to a crest line of the prism rod; chromatid dispersion can be reduced and stripes of the prism rods can be atomized effectively by utilizing the diffusion face to eliminate the occurrence of moiré fringes and elevate the yield factor.Type: GrantFiled: March 31, 2008Date of Patent: February 15, 2011Assignee: Optivision Technology Inc.Inventors: Whey-Bin Lor, Kuang-Lin Yuan, Wen-Hao Liu
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Publication number: 20100232022Abstract: One face of a substrate of a diffuser with a light condensing function is disposed with a plurality of prism rods; at least one inclined face of parts of prism rods is disposed with a rough diffusion face; the diffusion face may be positioned on any position of the inclined face of the prism rod; the diffusion face is disposed with a plurality of irregularly arranged raised and indented stripes perpendicular, not perpendicular or parallel to a crest line of the prism rod; chromatid dispersion can be reduced and stripes of the prism rods can be atomized effectively by utilizing the diffusion face to eliminate the occurrence of moiré fringes and elevate the yield factor.Type: ApplicationFiled: March 31, 2008Publication date: September 16, 2010Inventors: Whey-Bin Lor, Kuang-Lin Yuan, Wen-Hao Liu
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Publication number: 20090207497Abstract: One face of a substrate of a diffuser with a light condensing function is disposed with a plurality of prism rods; at least one inclined face of parts of prism rods is disposed with a rough diffusion face; the diffusion face may be positioned on any position of the inclined face of the prism rod; the diffusion face is disposed with a plurality of irregularly arranged raised and indented stripes perpendicular, not perpendicular or parallel to a crest line of the prism rod; chromatic dispersion can be reduced and stripes of the prism rods can be atomized effectively by utilizing the diffusion face to eliminate the occurrence of moiré fringes and elevate the yield factor.Type: ApplicationFiled: February 16, 2009Publication date: August 20, 2009Inventors: Whey-Bin LOR, Kuang-Lin YUAN, Wen-Hao LIU
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Publication number: 20080181772Abstract: A conductive device for a cooling fan with luminous figures provides a first circuit board, which surrounds and fits with the axial barrel in the fan frame, and the first and second conductors of the first circuit board connect with the first and second bearings respectively. The central shaft of the fan wheel fits with the first and second bearings and is surrounded with an elastic member on top of the first bearing. An insulation portion of the shaft is disposed at a position corresponding the first bearing and the elastic member. A second circuit board, which is attached to one of the blades on the fan wheel, provides luminous components and contacts with the elastic member and the shaft respectively. Once the fan is powered on and electricity is reached to the second circuit board via the first and second conductors, the first and second bearings and the elastic member, the luminous component is lighted up to show bright figures along with running fan wheel.Type: ApplicationFiled: January 29, 2007Publication date: July 31, 2008Inventors: Wen-Hao Liu, Bing-Tsang Ho
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Publication number: 20080180938Abstract: A cooling fan capable of showing luminous figures includes an impeller and a control unit. The impeller provides a hub and a plurality of blades being attached to the circumferential side of the hub. At least one of the blades has a cut-out edge at a lateral side thereof and a slot is disposed at the circumferential side corresponding to the cut-out edge. The control unit has a first circuit board and a second circuit board. The first circuit board electrically connects with the second circuit board and extending outward from the second circuit board. At least a luminous component is arranged on the first circuit board and controlled with the second circuit board. The second circuit board is placed in the hub and the first circuit board penetrates the circumferential side via the slot to fit with the cut-out edge to form the same dimension as any other blade for weight of the impeller being distributed evenly.Type: ApplicationFiled: January 29, 2007Publication date: July 31, 2008Inventors: Wen-Hao Liu, Bing-Tsang Ho
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Publication number: 20080138199Abstract: A fan device capable of increasing air pressure and air supply includes a frame, a first blade wheel, a second blade wheel and a guide flow part. The frame is a hollow casing to define a flow passage with a first air port and a second air port available for air passing through. The guide flow part is held with a support in the flow passage and a driving device is received in the support. The first blade wheel with first fan blades and the second blade wheel with second fan blades are disposed in the flow passage next to the support for being driven by the driving device. The number of the first fan blades is more than that of the second fan blades. Once the first and second fan wheels are in operation, air induced by the fan wheels is guided by the guide flow part and air pressure and air supply of the fan system are increased substantively due to number of the first fan blades being greater than that of the second fan blades.Type: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Inventors: Bor-Haw Chang, Wen-Hao Liu, Chia-Lieh Huang