Silicon carbide power device with improved robustness and corresponding manufacturing process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12125762
APP PUB NO 20230092543A1
SERIAL NO

18052510

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An electronic power device includes a substrate of silicon carbide (SiC) having a front surface and a rear surface which lie in a horizontal plane and are opposite to one another along a vertical axis. The substrate includes an active area, provided in which are a number of doped regions, and an edge area, which is not active, distinct from and surrounding the active area. A dielectric region is arranged above the front surface, in at least the edge area. A passivation layer is arranged above the front surface of the substrate, and is in contact with the dielectric region in the edge area. The passivation layer includes at least one anchorage region that extends through the thickness of the dielectric region at the edge area, such as to define a mechanical anchorage for the passivation layer.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS S R LVIA C OLIVETTI 2 AGRATE BRIANZA 20864

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chibbaro, Claudio Catania, IT 6 6
Guarnera, Alfio Trecastagni, IT 30 44
Lizio, Francesco Catania, IT 5 10
Rascuna', Simone Catania, IT 32 22
Saggio, Mario Giuseppe Aci Bonaccorsi, IT 82 188

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 22, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 22, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 22, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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