EP-4707957-A3 - METHOD FOR MANUFACTURING A TIMEPIECE COMPONENT
EP4707957A3EP 4707957 A3EP4707957 A3EP 4707957A3EP-4707957-A3
Abstract
The present invention relates to a method for manufacturing at least one watch component, in which, on a first side of a monolithic silicon wafer (100), a first primary etching mask (200) is made and then the wafer (100) is etched through the first mask (200) to form the edges of a first level of the component; at least one stop layer (400) is made on the first etched side (101) of the wafer (100); On the second side of the wafer (102) opposite to the first side (101), a second secondary etching mask (300) is made and then the wafer (100) is etched through this second mask (300) to form the edges of a second level of the component, the secondary etching reaching at least locally the stop layer.
Inventors
- Glassey, Marc-André
Assignees
- Sigatec SA
Dates
- Publication Date
- 20260513
- Application Date
- 20220523