Inventor
Thomas Chang
Inventor
Hsinchu, TW
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices31%
H10BElectronic memory devices19%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1019%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
G11CStatic stores5%
G01QScanning-probe techniques or apparatus2%
G08BSignalling systems, e.g. personal calling systems2%
G09FDisplaying2%
PatentTitleYear
7,589,990'Semiconductor ROM device and manufacturing method thereof'20096,617,636'Nonvolatile memory structures and fabrication methods'20036,365,455'Flash memory process using polysilicon spacers'20026,355,524'Nonvolatile memory structures and fabrication methods'20026,162,724'Method for forming metalization for inter-layer connections'20006,057,576'Inverse-T tungsten gate apparatus'20006,043,547'Circuit structure with an anti-reflective layer'20006,008,515'Stacked capacitor having improved charge storage capacity'19995,930,631'Method of making double-poly MONOS flash EEPROM cell'19995,909,621'Single-side corrugated cylindrical capacitor structure of high density DRAMs'19995,858,867'Method of making an inverse-T tungsten gate'19995,851,898'Method of forming stacked capacitor having corrugated side-wall structure'19985,843,822'Double-side corrugated cylindrical capacitor structure of high density DRAMs'19985,827,783'Stacked capacitor having improved charge storage capacity'19985,827,780'Additive metalization using photosensitive polymer as RIE mask and part of composite insulator'19985,821,564'TFT with self-align offset gate'19985,789,297'Method of making EEPROM cell device with polyspacer floating gate'19985,789,267'Method of making corrugated cell contact'19985,728,598'Method of manufacturing a SRAM cell having a low stand-by current'19985,724,825'Automatic temperature controlling system'19985,703,388'Double-poly monos flash EEPROM cell'19975,701,013'Wafer metrology pattern integrating both overlay and critical dimension features for SEM or AFM measurements'19975,672,243'Antireflection coating for highly reflective photolithographic layers comprising chromium oxide or chromium suboxide'19974,929,936'LED illuminated sign'19904,868,619'Single transistor electrically programmable memory device and method'19894,769,340'Method for making electrically programmable memory device by doping the floating gate by implant'19884,698,787'Single transistor electrically programmable memory device and method'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1989Patents assigned to EXEL MICROELECTRONICS INC (3)· patent assignee history
1987–2003Based in Santa Clara, CA, US· patent location history
1990Patents assigned to HOME SECURITY SYSTEMS INC (1)· patent assignee history
1990Based in Las Vegas, NV, US· patent location history
1997–2003Patents assigned to MOSEL VITELIC INC (20)· patent assignee history
1997Patents assigned to MOSEL VILTELIC INC (1)· patent assignee history
1997–2009Based in Hsinchu, TW· patent location history
1997–2002Based in Taichung, TW· patent location history
1998Based in Taichang, TW· patent location history
2009Patents assigned to TAIWAN IMAGINGTEK CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOSEL VITELIC INC | 20 | 1997–2003 |
| EXEL MICROELECTRONICS INC | 3 | 1987–1989 |
| HOME SECURITY SYSTEMS INC | 1 | 1990 |
| MOSEL VILTELIC INC | 1 | 1997 |
| TAIWAN IMAGINGTEK CORP | 1 | 2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 9 | 1997–2009 |
| Santa Clara, California, US | 8 | 1987–2003 |
| Taichung, TW | 8 | 1997–2002 |
| Taichang, TW | 1 | 1998 |
| Las Vegas, NV, US | 1 | 1990 |