F.T.L. Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 3359

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8097541 Method for surface treating semiconductorAug 15, 06Jan 17, 12[H01L]
6867147 Method of surface treatment of semiconductorDec 11, 02Mar 15, 05[H01L]
5387557 Method for manufacturing semiconductor devices using heat-treatment vertical reactor with temperature zonesOct 22, 92Feb 07, 95[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0202,352 METHOD OF AND APPARATUS FOR MANUFACTURING SEMICONDUCTOR DEVICEAbandonedApr 19, 12Aug 09, 12[C23C, H01L]
2010/0184,297 METHOD FOR PROTECTING SEMICONDUCTOR WAFER AND PROCESS FOR PRODUCING SEMICONDUCTOR DEVICEAbandonedJun 20, 08Jul 22, 10[H01L]
6793734 Heating furnace and semiconductor wafer-holding jig assembly and process of manufacturing semiconductor devicesExpiredJul 25, 02Sep 21, 04[C23C, H01L, F27D, A47G]
2004/0175,878 Heating furnace and semiconductor wafer-holding jig assembly and process of manufacturing semiconductor devicesAbandonedMar 12, 04Sep 09, 04[H01L]
2003/0186,517 Method of and apparatus for manufacturing semiconductor deviceAbandonedMar 31, 03Oct 02, 03[C23C, H01L, C30B]
6248672 Method of producing a semiconductor device in a heating furnace having a reaction tube with a temperature-equalizing zoneExpiredMay 13, 99Jun 19, 01[C23C]
6204194 Method and apparatus for producing a semiconductor deviceExpiredJan 15, 99Mar 20, 01[H01L]
6159873 Method for producing semiconductor device and production apparatus of semiconductor deviceExpiredMar 29, 96Dec 12, 00[H01L]
5972116 Method and apparatus for producing a semiconductor deviceExpiredDec 28, 95Oct 26, 99[C23C]
5643839 Method for producing semiconductor deviceExpiredJan 25, 95Jul 01, 97[H01L]
5445676 Method and apparatus for manufacturing semiconductor devicesExpiredOct 12, 94Aug 29, 95[C23C]
5407485 Apparatus for producing semiconductor device and method for producing semiconductor deviceExpiredApr 08, 94Apr 18, 95[C23C]

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