Patents by Inventor Chen-Fu Chien
Chen-Fu Chien 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: 20190197569Abstract: An optimization method and system of matching a product experiencing activity with participants are disclosed. The method comprises the following steps: storing, in a memory, personal information of the applicants collected by conducting an investigation with questionnaires; clustering the personal information of the applicants to form a plurality of characteristic sample groups; evaluating a weight value of each of the applicants in each of the plurality of characteristic sample groups to produce a representative for each of the plurality of characteristic sample groups in accordance with the weight values; selecting a plurality of candidates to participate the experiencing activity in coordination with the characteristic sample groups and the representative according to an activity restriction of the experiencing activity; and notifying the candidates to participate the experiencing activity.Type: ApplicationFiled: March 21, 2018Publication date: June 27, 2019Inventors: CHEN-FU CHIEN, KUO-YI LIN
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Patent number: 9563857Abstract: Disclosure is a multi-objective semiconductor product capacity planning system and method thereof. The system comprises a data input module, a capacity planning module and a computing module. The machine information of the production stations, the product information and the order information are input by the data input module. According to the demand quantity of order, capacity information and product information, the capacity planning module plans a capacity allocation to determine the satisfied quantity of orders. The capacity allocation information is used to form a gene combination by chromosome encoding method. The computing module calculates the gene combination several times to generate numerous candidate solutions by a multi-objective genetic algorithm. The numerous candidate solutions sorts out and generates a new gene combination, and repeats the calculation to form candidate solution set until stop condition is satisfied.Type: GrantFiled: February 3, 2014Date of Patent: February 7, 2017Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Chen-Fu Chien, Jei-Zheng Wu, Jia-Nian Zheng
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Patent number: 9513626Abstract: Disclosure is a method of dispatching semiconductor batch production, including: measuring an actual line width to calculate an estimated value of line width bias reference level, an estimated value of product bias, an estimated value of chamber bias and a standard error of chamber bias, and storing in a historical data module; inputting a product category, a line width measurement before manufacturing and a target line width after manufacturing in a batch production module; calculating a similarity index of each chambers by a computing engine of a matching module according to the data stored in the historical data module; transforming the similarity index into a priority of machine allocation by a dispatching module and dispatching a production machine; updating the historical data module by measuring a line width after manufacturing. The line width bias generated by various variations will be eliminated during the manufacturing process.Type: GrantFiled: January 2, 2014Date of Patent: December 6, 2016Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Chen-Fu Chien, Chia-Yu Hsu, Ying-Jen Chen
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Publication number: 20160048628Abstract: The present invention discloses a method for dynamic experimental design that is applied in a semiconductor manufacturing process. During an experimental design process, it will be checked whether an experimental target range is changed so as to rebuild an experimental design table and retain completed experimental factors in order achieve the purpose of dynamically adjusting the experimental factors. The method for dynamic experimental design according to the present invention can be effectively applied in the high-tech industry.Type: ApplicationFiled: November 19, 2014Publication date: February 18, 2016Inventors: Chen-Fu Chien, Shih-Chung Chuang
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Patent number: 9082009Abstract: A method for classifying defect images is provided. Defect images are processed through an automatic optical detection. The present invention integrates image analysis and data mining. Defects are found on the images without using human eye. The defects are classified for reducing product defect rate. Thus, the present invention effectively enhances performance on finding and classifying defects with increased consistency, correctness and reliability.Type: GrantFiled: January 14, 2014Date of Patent: July 14, 2015Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Kuo-Hao Chang, Chen-Fu Chien, Ying-Jen Chen
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Publication number: 20150098655Abstract: A method for classifying defect images is provided. Defect images are processed through an automatic optical detection. The present invention integrates image analysis and data mining. Defects are found on the images without using human eye. The defects are classified for reducing product defect rate. Thus, the present invention effectively enhances performance on finding and classifying defects with increased consistency, correctness and reliability.Type: ApplicationFiled: January 14, 2014Publication date: April 9, 2015Applicant: National Tsing Hua UniversityInventors: Kuo-Hao Chang, Chen-Fu Chien, Ying-Jen Chen
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Publication number: 20150074025Abstract: Disclosure is a multi-objective semiconductor product capacity planning system and method thereof. The system comprises a data input module, a capacity planning module and a computing module. The machine information of the production stations, the product information and the order information are input by the data input module. According to the demand quantity of order, capacity information and product information, the capacity planning module plans a capacity allocation to determine the satisfied quantity of orders. The capacity allocation information is used to form a gene combination by chromosome encoding method. The computing module calculates the gene combination several times to generate numerous candidate solutions by a multi-objective genetic algorithm. The numerous candidate solutions sorts out and generates a new gene combination, and repeats the calculation to form candidate solution set until stop condition is satisfied.Type: ApplicationFiled: February 3, 2014Publication date: March 12, 2015Applicant: National Tsing Hua UniversityInventors: Chen-Fu CHIEN, Jei-Zheng WU, Jia-Nian ZHENG
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Publication number: 20150066177Abstract: Disclosure is a method of dispatching semiconductor batch production, including: measuring an actual line width to calculate an estimated value of line width bias reference level, an estimated value of product bias, an estimated value of chamber bias and a standard error of chamber bias, and storing in a historical data module; inputting a product category, a line width measurement before manufacturing and a target line width after manufacturing in a batch production module; calculating a similarity index of each chambers by a computing engine of a matching module according to the data stored in the historical data module; transforming the similarity index into a priority of machine allocation by a dispatching module and dispatching a production machine; updating the historical data module by measuring a line width after manufacturing. The line width bias generated by various variations will be eliminated during the manufacturing process.Type: ApplicationFiled: January 2, 2014Publication date: March 5, 2015Applicant: National Tsing Hua UniversityInventors: Chen-Fu CHIEN, Chia-Yu HSU, Ying-Jen CHEN
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Publication number: 20150051859Abstract: The present invention relates to an analytic system of wafer bin map and a non-transitory computer readable media thereof. The analytic system of wafer bin map includes a wafer bin map input module, a wafer bin map database, a degeneration module, a standardization module, a coordinate transformation module, a defect density characterization module, a test of randomness module, a similarity comparison module, and a pattern evaluation module.Type: ApplicationFiled: October 22, 2013Publication date: February 19, 2015Applicant: National Tsing Hua UniversityInventors: Chen-Fu CHIEN, Chia-Yu HSU, Wei-Ju CHEN
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Publication number: 20150051936Abstract: Disclosure is a resource planning system and method for classification products. The system comprises an input module and a planning module. The input module is used to receive wafer information, manufacturing process information, classification product information and order information. The wafer information comprises a wafer purchasing cost and a wafer inventory cost; the manufacturing process information comprises a production distribution and a production cost for the manufacturing process; the classification product information comprises a classification product inventory cost; the order information comprises a sale amount of customer orders and a penalty cost by unmet orders. The planning module calculates a profit by deducting the wafer purchasing cost, the production cost, the wafer inventory cost, the classification product inventory cost and the penalty cost from the sale amount. The profit gets the maximum value by planning resource allocation of each module.Type: ApplicationFiled: November 22, 2013Publication date: February 19, 2015Applicant: NATIONAL TSING HUA UNIVERSITYInventors: Chen-Fu CHIEN, Jia-Nian ZHENG
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Patent number: 8863047Abstract: The present invention relates to a photolithography capacity planning system and a non-transitory computer readable media thereof. The photolithography capacity planning system includes a cost calculation module, a capacity calculation module, a demand calculation module, and a data processing module. The cost calculation module calculates a production cost, an unfulfilled demand cost, and a mask cost of the photolithography manufacturing process. The capacity calculation module calculates a capacity of light sources, a capacity of shared equipments, and a capacity of specified equipments of the photolithography manufacturing process. The demand calculation module calculates a quantity of unfulfilled demand. The data processing module produces a planning result.Type: GrantFiled: October 21, 2013Date of Patent: October 14, 2014Assignee: National Tsing Hua UniversityInventors: Chen-Fu Chien, Jei-Zheng Wu
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Patent number: 8407631Abstract: The present invention applies the data mining methodology by which the wafer exposure effectiveness and efficiency are predictable in terms of the chip size, chip length and chip width. More specifically, in the present invention, an index, named “Mask-field-utilization weighted Overall Wafer Effectiveness” (MOWE), integrates the two parameters of “Overall Wafer Effectiveness” (OWE) and “Mask-Field-Utilization” (MFU), mainly regarding the wafer exposure effectiveness and efficiency respectively, in order to construct a model tree of the MOWE to achieve the data mining. By the MOWE model tree, the causal relationship between design independent variables and fabrication dependent variables is constructed, which can be accordingly applied as design guidelines in the design phase to improve the chip layout in order to produce a better wafer exposure effectiveness and efficiency.Type: GrantFiled: August 20, 2010Date of Patent: March 26, 2013Assignee: National Tsing Hua UniversityInventors: Chen-Fu Chien, Chia-Yu Hsu
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Patent number: 8200528Abstract: A factor analysis system and method thereof is disclosed. The factor analysis system comprises a data receiving module for receiving a plurality of factors having influence on a target total value, a plurality of base values corresponding to the factors, and a target improvement percentage; a first computing unit for computing a reference target total value and a plurality of upgraded target total values; a second computing unit using the upgraded target total values and the reference target total value to compute the sensitivity of each of the factors; and a processing module for multiplying a factor improvement of each factor in percentage point by the factor sensitivity of each factor to obtain the level of contribution of each factor to the target total value. Through the factor analysis, a decision maker can decide the optimal combination of different factor improvements for achieving the planned target total value.Type: GrantFiled: October 19, 2010Date of Patent: June 12, 2012Assignee: National Tsing Hua UniversityInventors: Chen-Fu Chien, Chih-Han Hu
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Publication number: 20120046775Abstract: The present invention applies the data mining methodology by which the wafer exposure effectiveness and efficiency are predictable in terms of the chip size, chip length and chip width. More specifically, in the present invention, an index, named “Mask-field-utilization weighted Overall Wafer Effectiveness” (MOWE), integrates the two parameters of “Overall Wafer Effectiveness” (OWE) and “Mask-Field-Utilization” (MFU), mainly regarding the wafer exposure effectiveness and efficiency respectively, in order to construct a model tree of the MOWE to achieve the data mining. By the MOWE model tree, the causal relationship between design independent variables and fabrication dependent variables is constructed, which can be accordingly applied as design guidelines in the design phase to improve the chip layout in order to produce a better wafer exposure effectiveness and efficiency.Type: ApplicationFiled: August 20, 2010Publication date: February 23, 2012Inventors: Chen-Fu CHIEN, Chia-Yu Hsu
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Publication number: 20120029957Abstract: A factor analysis system and method thereof is disclosed. The factor analysis system comprises a data receiving module for receiving a plurality of factors having influence on a target total value, a plurality of base values corresponding to the factors, and a target improvement percentage; a first computing unit for computing a reference target total value and a plurality of upgraded target total values; a second computing unit using the upgraded target total values and the reference target total value to compute the sensitivity of each of the factors; and a processing module for multiplying a factor improvement of each factor in percentage point by the factor sensitivity of each factor to obtain the level of contribution of each factor to the target total value. Through the factor analysis, a decision maker can decide the optimal combination of different factor improvements for achieving the planned target total value.Type: ApplicationFiled: October 19, 2010Publication date: February 2, 2012Applicant: NATIONAL TSING HUA UNIVERSITYInventors: CHEN-FU CHIEN, CHIH-HAN HU
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Patent number: 7586609Abstract: A method for analyzing overlay errors in lithography is described. Interfield sampling and intrafield sampling are first conducted to sample multiple positions on each of the wafers, and then the overlay error value at each of the positions is measured. An overlay error model including coefficients of intrafield and interfield overlay errors of different types is used to fit the measured overlay error values with respect to the sampled positions. In the overlay error model, the intrafield overlay errors include intrafield translation, isotropic magnification, reticle rotation, asymmetric magnification and asymmetric rotation, and the interfield overlay errors include interfield translation, scale error, wafer rotation and orthogonality error.Type: GrantFiled: April 21, 2005Date of Patent: September 8, 2009Assignee: MACRONIX International Co., Ltd.Inventors: Shun-Li Lin, Chen-Fu Chien, Chia-Yu Hsu, I-Pien Wu
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Patent number: 7353077Abstract: A method of optimizing die placement on a wafer having an alignment mark with a computing system includes arranging a plurality of fields on the wafer in a first position. Dummies are inserted between at least one arranged field and the alignment mark and inserted adjacent to the wafer edge. The total number of dies manufacturable on the wafer at the first position is determined. The wafer position is shifted to a second position relative to the position of the plurality of fields, and the total number of dies manufacturable on the wafer at the second position is determined. The total number of manufacturable dies from each of the first and the second positions is compared, and the positions having the higher number of manufacturable die are candidates of optimal die placement position. Then the total number of fields, the total number of dummies, and the total number of shared dummies are evaluated to decide the optimal die placement position.Type: GrantFiled: September 8, 2005Date of Patent: April 1, 2008Assignee: Taiwan Semiconductor Manufacturing CompanyInventors: Chih-Wei Lin, Hong-Hsing Chou, Yeh-Jye Wang, Chen-Fu Chien, Jen-Hsin Wang, Chih-Wei Hsiao
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Publication number: 20070027567Abstract: A method of optimizing die placement on a wafer having an alignment mark with a computing system includes arranging a plurality of fields on the wafer in a first position. Dummies are inserted between at least one arranged field and the alignment mark and inserted adjacent to the wafer edge. The total number of dies manufacturable on the wafer at the first position is determined. The wafer position is shifted to a second position relative to the position of the plurality of fields, and the total number of dies manufacturable on the wafer at the second position is determined. The total number of manufacturable dies from each of the first and the second positions is compared, and the positions having the higher number of manufacturable die are candidates of optimal die placement position. Then the total number of fields, the total number of dummies, and the total number of shared dummies are evaluated to decide the optimal die placement position.Type: ApplicationFiled: September 8, 2005Publication date: February 1, 2007Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Wei Lin, Hong-Hsing Chou, Yeh-Jye Wang, Chen-Fu Chien, Jen-Hsin Wang, Chih-Wei Hsiao
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Publication number: 20060238761Abstract: A method for analyzing overlay errors in lithography is described. Interfield sampling and intrafield sampling are first conducted to sample multiple positions on each of the wafers, and then the overlay error value at each of the positions is measured. An overlay error model including coefficients of intrafield and interfield overlay errors of different types is used to fit the measured overlay error values with respect to the sampled positions. In the overlay error model, the intrafield overlay errors include intrafield translation, isotropic magnification, reticle rotation, asymmetric magnification and asymmetric rotation, and the interfield overlay errors include interfield translation, scale error, wafer rotation and orthogonality error.Type: ApplicationFiled: April 21, 2005Publication date: October 26, 2006Inventors: Shun-Li Lin, Chen-Fu Chien, Chia-Yu Hsu, I-Pien Wu
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Patent number: 6975974Abstract: In the manufacturing of VLSI circuits, production of overlay is a critical step. To obtain a higher resolution and alignment accuracy in microlithographic process, overlay errors must be measured so that overlay errors can be reduced to a tolerable level. This invention provides an overlay error model and a sampling strategy. Utilizing the overlay model and sampling strategy, a device for measuring overlay errors is also designed.Type: GrantFiled: August 1, 2001Date of Patent: December 13, 2005Assignee: Macronix International Co., Ltd.Inventors: Chen-Fu Chien, Kuo-Hao Chang, Chih-Ping Chen, Shun-Li Lin