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Inventor

Ping-Yi Chang

Inventor
Kaohsiung, TW

Overview

7→
Patents
2002–2015
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H10Bprimary
H10BElectronic memory devices30%
C23CCoating metallic material20%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1020%
B24BMachines, devices, or processes for grinding or polishing10%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1010%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
8,926,755'Lift-off deposition system featuring a density optimized HULA substrate holder in a conical deposition chamber'20156,849,504'Method for fabricating flash memory'20056,706,596'Method for forming flash memory cell'20046,589,854'Method of forming shallow trench isolation'20036,458,660'Method of flash cell formation'20026,407,454'Inter-metal dielectric layer'20026,336,841'Method of CMP endpoint detection'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2005Patents assigned to MACRONIX INT CO LTD (6)· patent assignee history
2002–2005Based in Kaohsiung, TW· patent location history
2003Based in Daliao Township, TW· patent location history
2015Patents assigned to CHANG PING (1)· patent assignee history
2015Patents assigned to FERROTEC USA CORP (1)· patent assignee history
2015Patents assigned to WALLACE GREGG (1)· patent assignee history
2015Based in Danville, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MACRONIX INT CO LTD62002–2005
CHANG PINGself12015
FERROTEC USA CORP12015
WALLACE GREGG12015
Locations
LocationPatentsSpan
Kaohsiung, TW52002–2005
Danville, California, US12015
Daliao Township, TW12003