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Inventor

SONG-YUAN CHANG

Inventor
TW

Overview

1→
Patents
2021
Patent span
Electricity
Primary field (CPC H)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B24Bprimary
B24BMachines, devices, or processes for grinding or polishing17%
C09GPolishing compositions17%
C09KMaterials for miscellaneous applications, not provided for elsewhere17%
H01LSemiconductor devices17%
H10DInorganic electric semiconductor devices17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
PatentTitleYear
11,193,043System for chemical mechanical polishing of Ge-based materials and devices2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to TAIWAN SEMICONDUCTOR MFG CO LTD (1)· patent assignee history
2021Patents assigned to UWIZ TECH CO LTD (1)· patent assignee history
2021Based in TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAIWAN SEMICONDUCTOR MFG CO LTD12021
UWIZ TECH CO LTD12021
Locations
LocationPatentsSpan
TW12021