Inventor · disambiguated record
I-Chung Chang
Also filed as: CHANG I-CHUNG
4 granted patents·57 citations·filing 1999–2002
77Inventor score
Top patents by PatentIndex Score
4 records- 0156US7011754B2Filtering device having filter bag sealUFF INTERNATION CORP·Filed 2002·Granted Mar 14, 2006·11 cites·4 claims
- 0253US6357131B1Overlay reliability monitorTAIWAN SEMICONDUCTOR MFG·Filed 1999·Granted Mar 19, 2002·21 cites·2 claims
- 0349US6507394B1Method and apparatus for inspecting the surface of a semiconductor deviceTAIWAN SEMICONDUCTOR MFG·Filed 1999·Granted Jan 14, 2003·15 cites·7 claims
- 0444US6396567B1Method and apparatus for controlling the dose of radiations applied to a semiconductor wafer during photolithographyTAIWAN SEMICONDUCTOR MFG·Filed 1999·Granted May 28, 2002·10 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when I-Chung Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →