Patent
   D962883
Priority
Nov 02 2020
Filed
Apr 22 2021
Issued
Sep 06 2022
Expiry
Sep 06 2037

TERM.DISCL.
Assg.orig
Entity
unknown
4
30
n/a
The ornamental design for a temporary protective film for manufacturing semiconductor devices, as shown and described.

Temporary protective film for manufacturing semiconductor devices

FIG. 1.1 is a perspective view of a temporary protective film for manufacturing semiconductor devices showing my design;

FIG. 1.2 is another perspective view thereof;

FIG. 1.3 is another perspective view thereof;

FIG. 1.4 is a front view thereof;

FIG. 1.5 is a back view thereof;

FIG. 1.6 is a top view thereof;

FIG. 1.7 is a bottom view thereof;

FIG. 1.8 is a left side view thereof;

FIG. 1.9 is a right side view thereof;

FIG. 1.10 is a sectional view thereof along lines A-A in FIG. 1.8.

The article includes a core part and a film part, and is characterized by the fact that the width of the core part is smaller than the width of the film part, and the film part is wound while partially protruding from the core part; each article is temporarily attached to a back of a lead frame when manufacturing a semiconductor device with only one side encapsulated and the lead frame on the back side exposed; the film part of each article has an adhesive layer on one side; since the core part does not protrude from the film part, each article can be easily positioned when set to equipment for manufacturing semiconductor devices, and it is possible to prevent the article from being misaligned when it is temporarily adhered to the back surface of the lead frame. The parallel thin lines in the representation represent contours only and do not illustrate an ornamentation or decoration on the surface of the product.

Tomori, Naoki

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 19 2021TOMORI, NAOKISHOWA DENKO MATERIALS CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0586660590 pdf
Apr 22 2021SHOWA DENKO MATERIALS CO., LTD.(assignment on the face of the patent)
Oct 01 2023Resonac CorporationResonac CorporationCHANGE OF ADDRESS0665990037 pdf
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