Assignee
ENF TECHNOLOGY CO LTD
KR·16 granted patents·12 pending applications·1 citations·filing 2016–2025
Top patents by PatentIndex Score
28 records- 0178US2025346812A1Composition for the selective etching of siliconENF TECHNOLOGY CO LTD·Filed 2025·Application pending·0 cites
- 0269US10982144B2Silicon nitride layer etching composition and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2019·Granted Apr 20, 2021·1 cites·17 claims
- 0367US2023212457A1Composition for the selective etching of siliconENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 0466US12415955B2Etchant composition for silicon layer and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2022·Granted Sep 16, 2025·0 cites·11 claims
- 0564US12134724B2Etching compositionENF TECHNOLOGY CO LTD·Filed 2022·Granted Nov 5, 2024·0 cites·13 claims
- 0664US2023017238A1Composition for photoresist stripperENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 0758US11987740B2Silicon nitride film etching composition and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2021·Granted May 21, 2024·0 cites·13 claims
- 0858US2025171689A1Etching composition for silicon nitride layerENF TECHNOLOGY CO LTD·Filed 2024·Application pending·0 cites
- 0956US12385142B2Etchant composition for titanium-containing metal layer and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2023·Granted Aug 12, 2025·0 cites·16 claims
- 1054US12134723B2Etching compositionENF TECHNOLOGY CO LTD·Filed 2022·Granted Nov 5, 2024·0 cites·16 claims
- 1153US12173216B2Etchant composition for semiconductor substratesENF TECHNOLOGY CO LTD·Filed 2022·Granted Dec 24, 2024·0 cites·11 claims
- 1253US2024150654A1Composition for the selective etching of siliconENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 1353US2023076065A1Composition for the selective etching of siliconENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 1452US12031077B2Etching composition for metal nitride layer and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2022·Granted Jul 9, 2024·0 cites·9 claims
- 1552US2023086417A1Composition for treating semiconductor substrateENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 1651US2024150681A1Cleaning agent composition for substrate for semiconductor devices and method for cleaning substrate for semiconductor devices using the sameENF TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 1751US2025305150A1Etchant composition for metal layer containing silver and preparation method thereofENF TECHNOLOGY CO LTD·Filed 2025·Application pending·0 cites
- 1850US11939505B2Silicon nitride film etching composition and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2021·Granted Mar 26, 2024·0 cites·14 claims
- 1950US2023092160A1Composition for the selective etching of siliconENF TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
- 2049US11926807B2Cleaning composition and cleaning method using the sameENF TECHNOLOGY CO LTD·Filed 2021·Granted Mar 12, 2024·0 cites·15 claims
- 2148US11220659B2Thinner compositionENF TECHNOLOGY CO LTD·Filed 2019·Granted Jan 11, 2022·0 cites·17 claims
- 2248US11091695B2Etching composition and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2020·Granted Aug 17, 2021·0 cites·4 claims
- 2346US2022089953A1Silicon nitride film etching composition and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2021·Application pending·0 cites
- 2444US10577696B2Copper etchant compositionENF TECHNOLOGY CO LTD·Filed 2016·Granted Mar 3, 2020·0 cites·2 claims
- 2542US2023303925A1Etchant composition of titanium layer and etching method using the sameENF TECHNOLOGY CO LTD·Filed 2023·Application pending·0 cites
- 2641US11149201B2Silicon nitride layer etching compositionENF TECHNOLOGY CO LTD·Filed 2019·Granted Oct 19, 2021·0 cites·8 claims
- 2739US10920142B2Polysiloxane-based compound, silicon nitride layer etching composition including the sameENF TECHNOLOGY CO LTD·Filed 2019·Granted Feb 16, 2021·0 cites·15 claims
- 2837US9828575B2Cleaner compositionENF TECHNOLOGY CO LTD·Filed 2016·Granted Nov 28, 2017·0 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →