Dicing die-bonding film

- Nitto Denko Corporation
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Description

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.”

Claims

The ornamental design for a dicing die-bonding film, as shown and described.

Referenced Cited
U.S. Patent Documents
4961804 October 9, 1990 Aurichio
5844348 December 1, 1998 Gamo
6457220 October 1, 2002 Hamano
6977024 December 20, 2005 Yamazaki et al.
7054161 May 30, 2006 James
20030207479 November 6, 2003 Border et al.
20030226640 December 11, 2003 Yamazaki et al.
20050139973 June 30, 2005 Matsumura et al.
20050208736 September 22, 2005 Matsumura et al.
Patent History
Patent number: D549189
Type: Grant
Filed: Mar 16, 2005
Date of Patent: Aug 21, 2007
Assignee: Nitto Denko Corporation (Osaka)
Inventors: Sadahito Misumi (Ibaraki), Takeshi Matsumura (Ibaraki)
Primary Examiner: Selina Sikder
Attorney: Knobbe Martens Olson & Bear LLP
Application Number: 29/225,423