EP 3495894 B1 20230104 - METHOD FOR MANUFACTURING A CLOCK COMPONENT
Title (en)
METHOD FOR MANUFACTURING A CLOCK COMPONENT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER UHRKOMPONENTE
Title (fr)
PROCÉDÉ DE FABRICATION D'UN COMPOSANT HORLOGER
Publication
Application
Priority
EP 17205320 A 20171205
Abstract (en)
[origin: US2019171164A1] A method of manufacturing a clock or watch component (19; 29) includes (i) providing (Ell; E21) a wafer (11; 21) having a single slice (12; 22) including a material of the component, notably silicon, diamond, quartz, sapphire or ceramic, optionally first coating the lower surface of the slice (22) with a lower layer (24), (iii) etching (E12 to E14; E22 to E24) the slice (12; 22) starting from its upper surface to form at least one clock or watch component, (iv) revealing (E15; E25) at least one clock or watch component (19; 29), by removing a layer that served as a mask for etching (E15; E25) and (y) optionally releasing (E26) the slice and the at least one etched clock or watch component by removing the lower layer (24).
IPC 8 full level
G04B 15/14 (2006.01); G04B 13/02 (2006.01); G04B 17/06 (2006.01); G04B 19/04 (2006.01)
CPC (source: EP US)
G04B 13/02 (2013.01 - EP US); G04B 15/14 (2013.01 - EP US); G04B 17/066 (2013.01 - EP US); G04B 19/042 (2013.01 - EP US)
Citation (examination)
EP 2579105 A2 20130410 - SUISSE ELECTRONIQUE MICROTECH [CH]
Designated contracting state (EPC)
AL 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
DOCDB simple family (publication)
EP 3495894 A1 20190612; EP 3495894 B1 20230104; CN 109870891 A 20190611; CN 109870891 B 20230530; JP 2019132827 A 20190808; JP 7393120 B2 20231206; US 11429065 B2 20220830; US 2019171164 A1 20190606
DOCDB simple family (application)
EP 17205320 A 20171205; CN 201811474412 A 20181204; JP 2018224857 A 20181130; US 201816202284 A 20181128