IP Library Granted Patent US 11,664,265
Granted Patent B2
US 11,664,265 · App. 17/226,362 · Granted May 30, 2023

Systems and methods for robotic arm sensing

Inventors: Yan-Hong Liu (Zhudong Township, Hsinchu County, TW); Ming-Feng Chen (Taoyuan, TW); Che-fu Chen (Taipei, TW); Hung-Wen Chen (Hsin-Chu, TW)
Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
H01L21/68707H01L21/67253H01L21/67706H01L21/67742
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 11,664,265
App. No.
17/226,362
Granted
May 30, 2023
Kind
B2
Abstract

In an embodiment, a robotic arm includes: a base; at least one link secured to the base; a gripper secured to the at least one link, wherein: the gripper comprises a finger, the gripper is configured to secure a wafer while the at least one link is in motion, and the gripper is configured to release the wafer while the at least one link is stopped, a sensor disposed on the finger, the sensor configured to collect sensor data characterizing the robotic arm's interaction with a semiconductor processing chamber while the wafer is secured using the finger.

Claims (35)

1. A method, comprising:

collecting sensor data from a sensor at a gripper hand, wherein:

the sensor data characterizes a relationship between a semiconductor processing chamber and the gripper hand, and

the gripper hand secures a wafer while the gripper hand is in motion;

detecting an adverse condition based on the sensor data; and

controlling the gripper hand in response to detecting the adverse condition,

wherein the sensor comprises an electronic nose configured to measure a concentration of a gas molecule around the gripper hand.

2. The method of claim 1 , further comprising:

executing a robotic arm routine using the gripper hand; and

modifying the robotic arm routine in response to detecting the adverse condition.

3. The method of claim 1 , further comprising:

retracting the gripper hand to a restart position in response to the detecting the adverse condition.

4. The method of claim 1 , the sensor data is at least one of: image data, distance data, temperature data, gas composition data, wafer weight data, and gripper hand movement speed.

5. The method of claim 1 , wherein the adverse condition comprises a value of the sensor data exceeding a threshold.

6. The method of claim 1 , wherein the adverse condition is a detection of less than a threshold distance between the sensor and a surface.

7. A method, comprising:

securing a wafer with a gripper configured to transport the wafer to a predetermined location within a processing chamber; and

collect first sensor data using a first sensor disposed on the gripper, wherein first sensor data characterizes a condition within a semiconductor processing chamber while the wafer is secured using the gripper, wherein the first sensor comprises an electronic nose configured to measure a concentration of a gas molecule around the gripper.

8. The method of claim 7 , further comprising collecting second sensor data using a second sensor coupled to the gripper, wherein the second sensor data indicates a weight of the wafer.

9. The method of claim 7 , further comprising collecting second sensor data using a second sensor coupled to the gripper, wherein the second sensor data characterizes a spatial relationship between the gripper and a surface of the semiconductor processing chamber.

10. The method of claim 7 , wherein the gripper is configured to move between multiple semiconductor processing chambers.

11. The method of claim 7 wherein the gripper hand comprises a set of fingers configured to secure the wafer or to release the wafer, and wherein the first sensor is disposed on a finger of the set of fingers.

12. The method of claim 7 , further comprising collecting image data using a second sensor coupled to the gripper.

13. The method of claim 7 , further comprising collecting temperature data using a second sensor coupled to the gripper.

14. The method of claim 7 , further comprising collecting gripper movement speed data using a second sensor coupled to the gripper.

15. A method, comprising:

providing a stabilization base;

securing a link to the stabilization base;

securing a gripper hand to the link, wherein the gripper hand is configured to secure a wafer while the link is in motion, and the gripper hand is configured to release the wafer while the link is stopped; and

coupling a first sensor to the gripper hand, wherein the first sensor comprises an electronic nose configured to measure a concentration of a gas molecule around the gripper.

16. The method of claim 15 , wherein the gripper hand comprises a set of fingers configured to secure the wafer or to release the wafer.

17. The method of claim 16 , wherein the first sensor is disposed on a finger of the set of fingers.

18. The method of claim 17 , wherein the finger comprises articulated joints and the first sensor is part of one of the articulated joints.

19. The method of claim 15 , further comprising coupling a second sensor to the gripper, wherein the second sensor is configured to collect data indicating a weight of the wafer.

20. The method of claim 15 , further comprising coupling a second sensor to the gripper, wherein the second sensor is configured to collect data indicating a spatial relationship between the gripper hand and a semiconductor processing chamber surface.

Continuity (3)
Division 15883525 · Jan 30, 2018
Provisional Application 62585752 · Nov 14, 2017
Related Publication 20210233797A1 · Jul 29, 2021