IP Library Granted Patent US 10,985,006
Granted Patent B2
US 10,985,006 · App. 16/113,960 · Granted Apr 20, 2021

Electrolytic plating apparatus

Inventors: Fumito Shoji (Yokkaichi Mie, JP); Tatsuo Migita (Nagoya Aichi, JP); Masahiko Murano (Yokkaichi Mie, JP)
Assignee: TOSHIBA MEMORY CORPORATION
H01L21/02021C23C18/1628C23C18/1664C25D5/02C25D7/12C25D17/004C25D17/005H01L21/288H01L21/6723H01L21/67253
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,985,006
App. No.
16/113,960
Granted
Apr 20, 2021
Kind
B2
Abstract

An electrolytic plating apparatus includes a plating tank that is filled with plating liquid; a moving mechanism configured to vertically move a processing target substrate in a direction normal to a surface of the plating liquid; a seal member that is disposed at a peripheral edge portion of a processing target surface of a processing target substrate and is configured to seal the plating liquid to a center side of the processing target surface when the processing target substrate is immersed in the plating tank; and a contact member that is separated from the seal member and is electrically connected to the processing target surface.

Claims (34)

1. An electrolytic plating apparatus comprising:

a plating tank that is filled with plating liquid;

a moving mechanism configured to vertically move a processing target substrate in direction normal to a surface of the plating liquid;

a seal member that is disposed at a peripheral edge portion of a processing target surface of the processing target substrate and is configured to seal the plating liquid to a center side of the processing target surface when the processing target substrate is immersed in the plating tank; and

a contact member that is separated from the seal member and is electrically connected to the processing target surface; and

a contact support member that supports the contact member and is configured to adjust a distance from the contact member to the surface of the plating liquid along a direction normal to the surface of the plating liquid,

wherein the moving mechanism is configured to apply separately a first pressing force via the seal member and a second pressing force via the contact member, the first pressing force being a pressure applied to the processing target surface of the processing target substrate by the seal member, and the second pressing force being a pressure applied to a supporting substrate bonded to the processing target substrate by the contact member.

2. The electrolytic plating apparatus according to claim 1 ,

wherein the seal member has an annular shape.

3. The electrolytic plating apparatus according to claim 2 , wherein the contact member is provided at a plurality of portions at predetermined intervals along an outer peripheral edge of a supporting substrate which supports the processing target substrate.

4. The electrolytic plating apparatus according to claim 3 , comprising a plurality of contact members including the contact member, wherein the plurality of contact members are separated from each other.

5. The electrolytic plating apparatus according to claim 4 , wherein the seal member and the plurality of contact members are separated from each other.

6. The electrolytic plating apparatus according to claim 2 , wherein the seal member comprises an elastic insulating material.

7. The electrolytic plating apparatus according to claim 1 , wherein the contact member is in physical contact with at least one of a first surface which is a surface of the supporting substrate on a side of the supporting substrate that supports the processing target substrate, a second surface which is a side surface of the supporting substrate, or a third surface which is a surface of an opposite side of the first surface.

8. The electrolytic plating apparatus according to claim 7 , wherein the contact member is in physical contact with the first surface.

9. The electrolytic plating apparatus according to claim 7 , wherein the contact member is in physical contact with the second surface.

10. The electrolytic plating apparatus according to claim 7 , wherein the contact member is in physical contact with the third surface.

11. An electrolytic plating apparatus comprising:

a plating tank configured to hold plating liquid;

a processing target substrate support configured to support a processing target substrate, the processing target substrate support being movable in a direction normal to a surface of the plating liquid;

a seal disposed at a peripheral edge portion of a processing target surface of the processing target substrate and is configured to seal the plating liquid to a center side of the processing target surface when the processing target substrate is immersed in the plating tank;

a conductive contact, separate from the seal, electrically connected to the processing target surface; and

a conductive contact support member that supports the conductive contact and is configured to adjust a distance from the conductive contact to the surface of the plating liquid along a direction normal to the surface of the plating liquid; and

a moving mechanism configured to apply separately a first pressing force via the seal and a second pressing force via the conductive contact, the first pressing force being a pressure applied to the processing target surface of the processing target substrate by the seal, and the second pressing force being a pressure applied to a supporting substrate bonded to the processing target substrate by the conductive contact.

12. The electrolytic plating apparatus according to claim 11 ,

wherein the seal has an annular shape.

13. The electrolytic plating apparatus according to claim 12 , wherein the conductive contact is provided at a plurality of portions at predetermined intervals along an outer peripheral edge of a supporting substrate which supports the processing target substrate.

14. The electrolytic plating apparatus according to claim 13 , comprising a plurality of conductive contacts including the conductive contact, wherein the plurality of conductive contacts are separated from each other.

15. The electrolytic plating apparatus according to claim 14 , wherein the seal and the plurality of conductive contacts are separated from each other.

16. The electrolytic plating apparatus according to claim 12 , wherein the seal comprises an elastic insulating material.

17. The electrolytic plating apparatus according to claim 11 , wherein the conductive contact is in physical contact with at least one of a first surface which is a surface of the supporting substrate on a side of the supporting substrate that supports the processing target substrate, a second surface which is a side surface of the supporting substrate, or a third surface which is a surface of an opposite side of the first surface.

18. The electrolytic plating apparatus according to claim 17 , wherein the conductive contact is in physical contact with the first surface.

19. The electrolytic plating apparatus according to claim 17 , wherein the conductive contact is in physical contact with the second surface.

20. The electrolytic plating apparatus according to claim 17 , wherein the conductive contact is in physical contact with the third surface.

Assignments (4)
CHANGE OF NAME AND ADDRESS Recorded Feb 4, 2022
From: K.K PANGEA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 058957/0124 →
CHANGE OF NAME AND ADDRESS Recorded Jan 31, 2022
From: TOSHIBA MEMORY CORPORATION
To: KIOXIA CORPORATION
Reel/Frame 058905/0582 →
MERGER Recorded Jan 31, 2022
From: TOSHIBA MEMORY CORPORATION
To: K.K PANGEA
Reel/Frame 058946/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2019
From: SHOJI, FUMITO; MIGITA, TATSUO; MURANO, MASAHIKO
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 047893/0327 →
Priority Claims (1)
JP JP2018-053267 · Mar 20, 2018 · national
Continuity (1)
Related Publication 20190295836A1 · Sep 26, 2019