Patent
   D962882
Priority
Nov 14 2019
Filed
May 07 2020
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.

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

FIG. 1.2 is a front view thereof;

FIG. 1.3 is a back view thereof;

FIG. 1.4 is a top view thereof;

FIG. 1.5 is a bottom view thereof;

FIG. 1.6 is a left side view thereof;

FIG. 1.7 is a right side view thereof;

FIG. 1.8 is a vertical cross-sectional view passing through the center of FIG. 1.6.

FIG. 3.1 is a perspective view of a temporary protective film for manufacturing semiconductor devices showing my design;

FIG. 3.2 is a front view thereof;

FIG. 3.3 is a back view thereof;

FIG. 3.4 is a top view thereof;

FIG. 3.5 is a bottom view thereof;

FIG. 3.6 is a left side view thereof;

FIG. 3.7 is a right side view thereof;

FIG. 3.8 is a vertical cross-sectional view passing through the center of FIG. 3.6.

Each article includes a core part and a film part, and is characterized by the fact that the width of the core part is larger than the width of the film part, and the core part protrudes greatly to one side; 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; each article is easy to position when set on a manufacturing equipment. 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 28 2020TOMORI, NAOKIHitachi Chemical Company, LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0544610055 pdf
May 07 2020SHOWA DENKO MATERIALS CO., LTD.(assignment on the face of the patent)
Oct 01 2020Hitachi Chemical Company, LTDSHOWA DENKO MATERIALS CO , LTD CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0545240056 pdf
Oct 01 2023Resonac CorporationResonac CorporationCHANGE OF ADDRESS0665990037 pdf
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