Inventor

Ken Cheong Cheah

Inventor

Penang, MY

Overview

2001–2019

Patent span

Physics

Primary field (CPC G)

Patents· 17 as inventor

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

G11Cprimary

G11CStatic stores89%

G01RMeasuring electric variables11%

PatentTitleYear

10,229,744First read countermeasures in memory2019 10,026,486First read countermeasures in memory2018 7,672,803'Input of test conditions and output generation for built-in self test'2010 7,415,646'Pageâ€”EXE erase algorithm for flash memory'2008 7,284,167'Automated tests for built-in self test'2007 7,158,442'Flexible latency in flash memory'2007 7,028,240'Diagnostic mode for testing functionality of BIST (built-in-self-test) back-end state machine'2006 7,010,736'Address sequencer within BIST (Built-in-Self-Test) system'2006 6,980,473'Memory device and method'2005 6,973,003'Memory device and method'2005 6,970,368'CAM (content addressable memory) cells as part of core array in flash memory device'2005 6,891,752'System and method for erase voltage control during multiple sector erase of a flash memory device'2005 6,771,093'Implementing reference current measurement mode within reference array programming mode or reference array erase mode in a semiconductor'2004 6,707,718'Generation of margining voltage on-chip during testing CAM portion of flash memory device'2004 6,665,214'On-chip erase pulse counter for efficient erase verify BIST (built-in-self-test) mode'2003 6,631,086'On-chip repair of defective address of core flash memory cells'2003 6,243,291'Two-stage pipeline sensing for page mode flash memory'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2006Patents assigned to ADVANCED MICRO DEVICES INC (11)· patent assignee history

2001Based in Sunnyvale, CA, US· patent location history

2003–2010Based in Penang, MY· patent location history

2007–2010Patents assigned to SPANSION LLC (4)· patent assignee history

2018–2019Patents assigned to SANDISK TECHNOLOGIES LLC (2)· patent assignee history

2018–2019Based in San Jose, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ADVANCED MICRO DEVICES INC	11	2001–2006
SPANSION LLC	4	2007–2010
SANDISK TECHNOLOGIES LLC	2	2018–2019

Locations

Location	Patents	Span
Penang, MY	14	2003–2010
San Jose, California, US	2	2018–2019
Sunnyvale, California, US	1	2001