blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News flashes

New version of the European Patent Register - SPC information for Unitary Patents.

2024-03-06

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP4177955

EP4177955 - SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREFOR [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  07.04.2023
Database last updated on 10.07.2024
FormerThe international publication has been made
Status updated on  01.04.2023
Formerunknown
Status updated on  17.01.2023
Most recent event   Tooltip09.07.2024The date on which the examining division becomes responsible, has been established 
09.07.2024Amendment by applicant 
Applicant(s)For all designated states
Changxin Memory Technologies, Inc.
No. 388 Xingye Avenue
Airport Industrial Park
Economic and Technological Development Area
Hefei, Anhui 230601 / CN
[2023/19]
Inventor(s)01 / LU, Jingwen
Hefei Anhui 230601 / CN
 [2024/23]
Representative(s)Lavoix
Bayerstraße 83
80335 München / DE
[2023/19]
Application number, filing date21949522.319.11.2021
[2023/19]
WO2021CN131910
Priority number, dateCN20211113859627.09.2021         Original published format: CN202111138596
[2023/19]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023045057
Date:30.03.2023
Language:ZH
[2023/13]
Type: A1 Application with search report 
No.:EP4177955
Date:10.05.2023
Language:EN
[2023/19]
Search report(s)International search report - published on:CN30.03.2023
(Supplementary) European search report - dispatched on:EP20.12.2023
ClassificationIPC:H01L29/423, H01L21/8234, H01L27/088, H10B12/00, H01L21/762
[2024/03]
CPC:
H10B12/053 (EP); H01L29/4236 (EP,US); H01L21/76224 (EP);
H01L29/42368 (EP); H10B12/02 (US); H10B12/485 (EP);
H10B12/488 (EP,US) (-)
Former IPC [2023/19]H01L29/423, H01L21/8234, H01L27/088
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/19]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:HALBLEITERSTRUKTUR UND HERSTELLUNGSVERFAHREN DAFÜR[2023/19]
English:SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREFOR[2023/19]
French:STRUCTURE SEMI-CONDUCTRICE ET SON PROCÉDÉ DE FABRICATION[2023/19]
Entry into regional phase17.01.2023Translation filed 
17.01.2023National basic fee paid 
17.01.2023Search fee paid 
17.01.2023Designation fee(s) paid 
17.01.2023Examination fee paid 
Examination procedure17.01.2023Examination requested  [2023/19]
08.07.2024Amendment by applicant (claims and/or description)
08.07.2024Date on which the examining division has become responsible
Fees paidRenewal fee
24.11.2023Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]CN101572230  (SEMICONDUCTOR MFG INT BEIJING [CN]) [A] 5* abstract *;
 [XAI]US2014361354  (TING YU-WEI [TW], et al) [X] 1-3,11-15 * paragraph [0011] - paragraph [0054]; figures 1-12 * [A] 5 [I] 4,6-10;
 [X]US2018190661  (WANG YUNG-MING [TW], et al) [X] 1,11,14,15 * paragraph [0010] - paragraph [0013]; figures 1, 2 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.