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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
VISHAY-SILICONIX	2201 LAURELWOOD ROAD SANTA CLARA CA 95054

International Classification(s)

• H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....

• 2002 Application Filing Year
• H01L Class
• 14069 Applications Filed
• 7752 Patents Issued To-Date
• 55.10 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kasem, Mohammed	Santa Clara, CA	12	124
# of filed Patents : 12 Total Citations : 124
Korec, Jacek	San Jose, CA	63	2629
# of filed Patents : 63 Total Citations : 2629
Xu, Robert Q	Fremont, CA	9	179
# of filed Patents : 9 Total Citations : 179

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Patent Citation Ranking

• 6 Citation Count
• H01L Class

• 2.00 % this patent is cited more than
• 20 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 9887266

Ultra-low drain-source resistance power MOSFET

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Abstract

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Ultra-low drain-source resistance power MOSFET. In accordance with an embodiment of the preset invention, a semiconductor device comprises a plurality of trench power MOSFETs. The plurality of trench power MOSFETs is formed in a second epitaxial layer. The second epitaxial layer is formed adjacent and contiguous to a first epitaxial layer. The first epitaxial layer is formed adjacent and contiguous to a substrate highly doped with red Phosphorus. The novel red Phosphorus doped substrate enables a desirable low drain-source resistance.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2023
• MAFP2019
• I2015
• STCF2015
• AS2015
• AS2013
• P2013
• F2012

Date	Code	Event	Description
May 09, 2023	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Apr 02, 2019	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
Nov 10, 2015	I	Issuance
Oct 21, 2015	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Aug 25, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CENOVUS FCCL LTD.;REEL/FRAME:036638/0181 Owner name: FCCL PARTNERSHIP, CANADA Effective Date: Aug 25, 2015
Aug 06, 2013	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PRICE, GLENN ROBERT;SUN, SUSAN WEI;WASYLYK, MICHAEL JOHN;SIGNING DATES FROM 20130702 TO 20130710;REEL/FRAME:030953/0553 Owner name: CENOVUS FCCL LTD., AS OPERATOR FOR FCCL PARTNERSHI
Jun 27, 2013	P	Published
Dec 20, 2012	F	Filing