Patent ID: 11881414
Assignee: TOPPAN PRINTING CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC C  H | IPC C  H

Claim 1:
2. A method for manufacturing a glass device, comprising the steps of:
providing a first wiring on a first surface of a glass substrate;
supporting a first wiring side of the glass substrate provided with the first wiring, using a support body;
forming a laser modified area using a laser light applied to a surface opposite to the first surface, the laser modified area extending from the first surface of the glass substrate toward a surface opposite to the first surface and serving as an area from which a through hole is formed;
forming a through hole while thinning the glass substrate by etching using a hydrogen fluoride etchant toward the first surface from the surface opposite to the first surface of the glass substrate, after the step of supporting the first wiring side of the glass substrate and the step of forming the laser modified area;
forming a through electrode inside the through hole, and providing a second wiring on a surface opposite to the first surface of the glass substrate, and connecting the first wiring and the second wiring to each other via the through electrode after the step of forming the through hole; and
removing the support body from the glass substrate after the second wiring is formed.