Invention Grant
- Patent Title: Detection of force applied by pick-up tool for transferring semiconductor devices
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Application No.: US16728677Application Date: 2019-12-27
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Publication No.: US11756810B1Publication Date: 2023-09-12
- Inventor: Oscar Torrents Abad , Daniel Brodoceanu , Ali Sengül , Pooya Saketi
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Fenwick & West LLP
- Main IPC: H01L21/67
- IPC: H01L21/67 ; B25J15/00 ; B65G47/90 ; B81C1/00 ; B25J7/00 ; B81B3/00

Abstract:
A pick-up head picks up a semiconductor device from a carrier substrate. The pick-up head includes a first leg portion, a second leg portion, a raised bridge base portion between the first and second leg portions, and a tip portion mounted on the raised bridge base portion. The tip portion engages with the semiconductor device to pick up the semiconductor device from the carrier substrate. The pick-up head is associated with a force detection mechanism that detects a force applied to the pick-up head for picking up the semiconductor device. The force detection mechanism includes cavities formed on the first leg portion and/or second leg portion, pillars arranged on the pick-up head, a force detection device arranged in a mount assembly that is attached on the pick-up head, or electrodes arranged on the mount assembly. Actuation of the pick-up head is determined based on the detected force.
Information query
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