USPatentGranted
S1

Dicing die-bonding film

Granted 21 Aug 2007 · no office action yet

Assignee: Nitto Denko

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Attorney: Attorney · Log in to unlock

Inventors: Takeshi Matsumura, Sadahito Misumi · Examiner: Selina Sikder · AU 2912 · TC 2900

Application
29/225,423
filed 16 Mar 2005
Publication
Not published
not published
Patent· this page
US D549189
granted 21 Aug 2007

Life of the patent

2 dated events
⤢ drag to zoomApr 2005Jul 2005Oct 2005Jan 2006Apr 2006Jul 2006Oct 2006Jan 2007Apr 2007Jul 2007Oct 2007Prosecution
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Description

1 parts
›FIG. 1 is a front view of a…

FIG. 1 is a front view of a dicing die-bonding film showing our new design, it being understood that the cut away portion indicates that the film has an indeterminate length wherein the pattern is repeated uniformly throughout the length thereof.

FIG. 2 is a rear view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The article to which the design is applied is affixed to the rear side of a semiconductor wafer with a circuit pattern formed, is diced (cut) into specified sizes together with the semiconductor wafer, and is bonded (affixed) on to the circuit substrate as it is.

The present article is formed by exfoliatively interleaving light-transmitting resin with circular patterns at the widthwise center section as well as colored patterns on the periphery and transparent resin, and measures as a whole about 230 to 400 mm wide and about 10 to 100 μm thick, with the circular patterns at the center about 160 to 310 mm in diameter, and is continuous horizontally only in “front view” and “rear view.”

the grant prints no section headings; every part label below is ours, taken from that part's own first words

Claims

1 · 1 independent · depth 1
1 granted claims

Classifications

1 codes
USPC · US Patent Classification
D13/182

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File wrapper

Pendency
2.4 y
888 days filing → grant
Office actions
0
none on record
Responses
1
no RCE
Examiner
Selina Sikder
art unit 2912 · TC 2900
Citations: 9 back · 0 forward

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Chain of title

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Worldwide family

2 members · 2 offices
US1TW1
this patentIP5 & PCTother officessolid = grantedhover for detail · click to open
Members
2
DOCDB simple family 38374429
Offices
2
US
Granted
1 of 2
grant date present
›IP5 & PCT — 1 members
OfficePublicationKindPublishedFiledStatusTitle
USthis patentUS-D549189-SS121 Aug 200716 Mar 2005grantedDicing die-bonding film
›Other offices — 1 members
OfficePublicationKindPublishedFiledStatusTitle
TWTW-D121842-S1S111 Mar 200817 Mar 2005publishedDie attach film

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