Patents
US 9620501 B1: Enhancement-depletion mode circuit element with differential passivation
- Granted
- 2017-04-11
- Filed
- 2016-02-29 application 15055877
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An enhancement-depletion circuit element includes a depletion-mode load transistor and an enhancement-mode drive transistor formed from the common elements of: a first patterned conductive layer including a load gate electrode and a drive gate electrode; a patterned inorganic dielectric stack including a load gate dielectric and a drive gate dielectric; a patterned inorganic semiconductor layer including a load semiconductor region and a drive semiconductor region; a second patterned conductive layer including a load source, a load drain, a drive source and a drive drain; and a patterned differential passivation structure having a patterned polymer dielectric layer and a patterned conformal inorganic dielectric layer. The depletion-mode load transistor has a load back-channel in contact with the patterned conformal inorganic dielectric layer. The enhancement-mode drive transistor has a drive back-channel in contact with the patterned polymer dielectric layer.
Source: PVGPATDIS, file of 2026-04-10 (ipg170411.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| EASTMAN KODAK COMPANY 2,417 patents | US company or organization | Rochester, NY | EASTMAN KODAK COMPANY Federal lobbying client EXACT high confidence: identical full name and state EASTMAN KODAK CO SEC filer FUZZY low confidence: same name (legal endings aside), one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Carolyn Rae Ellinger | Rochester, NY | 74 | PVGPATDIS, file of 2026-04-10 | |
| Shelby F. Nelson | Pittsford, NY | 63 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H10D | Inorganic electric semiconductor devices | H10D30/6728 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2021-03-04 | Security interest Security interest Notice of security interests | EASTMAN KODAK COMPANY signed 2021-02-26 | BANK OF AMERICA, N.A., AS AGENT BOSTON, MA | 56984/1 | PASDL, file of 2026-10-15 |
| 2021-03-04 | Security interest Security interest Intellectual property security agreement | EASTMAN KODAK COMPANY signed 2021-02-26 | ALTER DOMUS (US) LLC CHICAGO, IL | 56734/233 | PASDL, file of 2026-10-15 |
| 2021-03-04 | Security interest Security interest Intellectual property security agreement | EASTMAN KODAK COMPANY signed 2021-02-26 | ALTER DOMUS (US) LLC CHICAGO, IL | 56734/1 | PASDL, file of 2026-10-15 |
| 2021-03-04 | Security interest Security interest Intellectual property security agreement | EASTMAN KODAK COMPANY signed 2021-02-26 | ALTER DOMUS (US) LLC CHICAGO, IL | 56733/681 | PASDL, file of 2026-10-15 |
| 2020-01-24 | Release of security interest Release of security interest | BARCLAYS BANK PLC signed 2017-02-02 | EASTMAN KODAK COMPANY ROCHESTER, NY FAR EAST DEVELOPMENT LTD. ROCHESTER, NY FPC INC. ROCHESTER, NY KODAK (NEAR EAST) INC. ROCHESTER, NY KODAK AMERICAS LTD. ROCHESTER, NY KODAK REALTY INC. ROCHESTER, NY LASER PACIFIC MEDIA CORPORATION ROCHESTER, NY QUALEX INC. ROCHESTER, NY KODAK PHILIPPINES LTD. ROCHESTER, NY NPEC INC. ROCHESTER, NY | 52773/1 | PASDL, file of 2026-10-15 |
| 2019-07-30 | Release of security interest Release of security interest | JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT signed 2019-06-17 | EASTMAN KODAK COMPANY ROCHESTER, NY FAR EAST DEVELOPMENT LTD. ROCHESTER, NY PFC, INC. ROCHESTER, NY KODAK (NEAR EAST), INC. ROCHESTER, NY KODAK AMERICAS, LTD. ROCHESTER, NY KODAK IMAGING NETWORK, INC. ROCHESTER, NY KODAK PORTUGUESA LIMITED ROCHESTER, NY KODAK REALTY, INC. ROCHESTER, NY LASER PACIFIC MEDIA CORPORATION ROCHESTER, NY PAKON, INC. ROCHESTER, NY QUALEX, INC. ROCHESTER, NY KODAK PHILIPPINES, LTD. ROCHESTER, NY NPEC, INC. ROCHESTER, NY CREO MANUFACTURING AMERICA LLC ROCHESTER, NY KODAK AVIATION LEASING LLC ROCHESTER, NY | 49901/1 | PASDL, file of 2026-10-15 |
| 2019-07-22 | Release of security interest Release of security interest | JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT signed 2019-06-17 | EASTMAN KODAK COMPANY ROCHESTER, NY FAR EAST DEVELOPMENT LTD. ROCHESTER, NY FPC, INC. ROCHESTER, NY KODAK (NEAR EAST), INC. ROCHESTER, NY KODAK AMERICAS, LTD. ROCHESTER, NY KODAK IMAGING NETWORK, INC. ROCHESTER, NY KODAK PORTUGUESA LIMITED ROCHESTER, NY KODAK REALTY, INC. ROCHESTER, NY LASER PACIFIC MEDIA CORPORATION ROCHESTER, NY PAKON, INC. ROCHESTER, NY QUALEX, INC. ROCHESTER, NY KODAK PHILIPPINES, LTD. ROCHESTER, NY NPEC, INC. ROCHESTER, NY CREO MANUFACTURING AMERICA LLC ROCHESTER, NY KODAK AVIATION LEASING LLC ROCHESTER, NY | 50239/1 | PASDL, file of 2026-10-15 |
| 2016-05-02 | Security interest Security interest Intellectual property security agreement | EASTMAN KODAK COMPANY signed 2016-03-15 FAR EAST DEVELOPMENT LTD. signed 2016-03-15 FPC INC. signed 2016-03-15 KODAK (NEAR EAST), INC. signed 2016-03-15 KODAK AMERICAS, LTD. signed 2016-03-15 KODAK REALTY, INC. signed 2016-03-15 LASER-PACIFIC MEDIA CORPORATION signed 2016-03-15 QUALEX INC. signed 2016-03-15 KODAK PHILIPPINES, LTD. signed 2016-03-15 NPEC INC. signed 2016-03-15 | BANK OF AMERICA N.A. CHARLOTTE, NC | 38592/249 | PASDL, file of 2026-08-13 |
| 2016-04-06 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2016-03-15 FAR EAST DEVELOPMENT LTD. signed 2016-03-15 FPC INC. signed 2016-03-15 KODAK (NEAR EAST), INC. signed 2016-03-15 KODAK AMERICAS, LTD. signed 2016-03-15 KODAK REALTY, INC. signed 2016-03-15 LASER-PACIFIC MEDIA CORPORATION signed 2016-03-15 QUALEX INC. signed 2016-03-15 KODAK PHILIPPINES, LTD. signed 2016-03-15 NPEC INC. signed 2016-03-15 | BANK OF AMERICA N.A. BOSTON, MA | 38202/340 | PASDL, file of 2026-08-13 |
| 2016-04-06 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2016-03-15 FAR EAST DEVELOPMENT LTD. signed 2016-03-15 FPC INC. signed 2016-03-15 KODAK (NEAR EAST), INC. signed 2016-03-15 KODAK AMERICAS, INC. signed 2016-03-15 KODAK REALTY, INC. signed 2016-03-15 LASER-PACIFIC MEDIA CORPORATION signed 2016-03-15 QUALEX INC. signed 2016-03-15 KODAK PHILIPPINES, LTD. signed 2016-03-15 NPEC INC. signed 2016-03-15 | BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT NEW YORK, NY | 38202/194 | PASDL, file of 2026-08-13 |
| 2016-04-06 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2016-03-15 FAR EAST DEVELOPMENT LTD. signed 2016-03-15 FPC INC. signed 2016-03-15 KODAK (NEAR EAST), INC. signed 2016-03-15 KODAK AMERICAS, LTD. signed 2016-03-15 KODAK REALTY, INC. signed 2016-03-15 LASER-PACIFIC MEDIA CORPORATION signed 2016-03-15 QUALEX INC. signed 2016-03-15 KODAK PHILIPPINES, LTD. signed 2016-03-15 NPEC INC. signed 2016-03-15 | JPMORGAN CHASE BANK, N.A. AS ADMINISTRATIVE AGENT NEWARK, DE | 38201/935 | PASDL, file of 2026-08-13 |
| 2016-03-24 | Assignment Assignment of assignor's interest | ELLINGER, CAROLYN RAE signed 2016-03-03 NELSON, SHELBY FORRESTER signed 2016-03-07 | EASTMAN KODAK COMPANY ROCHESTER, NY | 38087/528 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.