Core material, semiconductor package, and forming method of bump electrode

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10381319
APP PUB NO 20180174991A1
SERIAL NO

15832905

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A core material including a core and a solder plating layer of a (Sn—Bi)-based solder alloy made of Sn and Bi on a surface of the core. Bi in the solder plating layer is distributed in the solder plating layer at a concentration ratio in a predetermined range of, for example, 91.7% to 106.7%. Bi in the solder plating layer is homogeneous, and thus, a Bi concentration ratio is in a predetermined range over the entire solder plating layer including an inner circumference side and an outer circumference side in the solder plating layer.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SENJU METAL INDUSTRY CO LTDTOKYO 120-8555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hattori, Takahiro Tochigi, JP 30 155
Kawasaki, Hiroyoshi Tokyo, JP 65 151
Kondo, Shigeki Tochigi, JP 53 1581
Nishino, Tomoaki Tokyo, JP 8 12
Roppongi, Takahiro Tochigi, JP 28 160
Sato, Isamu Saitama, JP 96 1235
Soma, Daisuke Tochigi, JP 28 149

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 13, 2027
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 13, 2031
Fee Large entity fee small entity fee micro entity fee
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