SGS Microelettronica S.p.A.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5237485 Apparatus and method for improved thermal coupling of a semiconductor package to a cooling plate and increased electrical coupling of package leads on more than one side of the package to a circuit boardExpiredOct 22, 90Aug 17, 93[H05K]
5001547 Method and apparatus for improving thermal coupling between a cooling plate of a semiconductor package housing and a heat sinkExpiredAug 07, 89Mar 19, 91[]
4971930 EPROM semiconductor device erasable with ultraviolet rays and manufacturing process thereofExpiredJul 21, 88Nov 20, 90[H01L]
4965219 Method for the manufacturing of insulated gate field effect transistors (IGFETS) having a high response speed in high density integrated circuitsExpiredJan 19, 90Oct 23, 90[H01L]
4949142 Integrated N-channel power MOS bridge circuitExpiredSep 06, 85Aug 14, 90[H01L]
4935790 EEPROM memory cell with a single level of polysilicon programmable and erasable bit by bitExpiredDec 22, 87Jun 19, 90[H01L, G11C]
4926376 Method of designing integrated microcomputers and integrated microcomputer with modular structure obtained by said methodExpiredJul 14, 89May 15, 90[G06F]
4920510 Sample data band-pass filter deviceExpiredJun 17, 87Apr 24, 90[G06G, H03H]
4916085 MOS power structure with protective device against overvoltages and manufacturing process thereforExpiredJun 15, 89Apr 10, 90[H01L]
4897365 Reduced-beak planox process for the formation of integrated electronic componentsExpiredNov 23, 87Jan 30, 90[H01L]
4892615 Method for decontamination of a chamber used in vacuum processes for deposition, etching and/or growth of high purity filmsExpiredDec 02, 87Jan 09, 90[C23C, B05D, B44C]
4892836 Method for manufacturing semiconductor integrated circuits including CMOS and high-voltage electronic devicesExpiredMar 23, 87Jan 09, 90[H01L]
4890149 Integrated device for shielding charge injection into the substrate, in particular in driving circuits for inductive and capacitive loadsExpiredSep 21, 87Dec 26, 89[H01L]
4888307 Method for manufacturing plastic encapsulated semiconductor devicesExpiredAug 27, 87Dec 19, 89[H01L]
4886982 Power transistor with improved resistance to direct secondary breakdownExpiredDec 21, 87Dec 12, 89[H03K, H01L, G05F]
4887142 Monolithically integrated semiconductor device containing bipolar junction transistors, CMOS and DMOS transistors and low leakage diodes and a method for its fabricationExpiredNov 28, 88Dec 12, 89[H01L]
4887149 Semiconductor device mounted in a highly flexible, segmented package, provided with heat sinkExpiredJul 14, 87Dec 12, 89[H01L]
4874965 Circuital device for the power-on reset of digital integrated circuits in MOS technologyExpiredNov 25, 87Oct 17, 89[H03K, G11C]
4871963 Method and apparatus for testing EPROM type semiconductor devices during burn-inExpiredOct 17, 88Oct 03, 89[G01R]
4868422 TTL compatible CMOS logic circuit for driving heavy capacitive loads at high speedExpiredDec 09, 87Sep 19, 89[H03K]

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