Terminal structure having large peel strength of land portion and ball

The present invention intends to provide a terminal structure strong in the peel strength of a land portion and a ball. In a terminal structure according to the invention, a land portion (2) includes a terminal portion for soldering a ball (7) ; a support portion (4) disposed in the neighborhood of...

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Bibliographic Details
Main Author HIROSE, YOSHITAKA
Format Patent
LanguageEnglish
French
German
Published 04.05.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
SEMICONDUCTOR DEVICES
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Summary:The present invention intends to provide a terminal structure strong in the peel strength of a land portion and a ball. In a terminal structure according to the invention, a land portion (2) includes a terminal portion for soldering a ball (7) ; a support portion (4) disposed in the neighborhood of an outer periphery portion of the terminal portion; and a link portion (5) for linking the terminal portion and the support portion; and wherein on a base material, with an entirety of the terminal portion including an edge portion located in the outer periphery portion of the terminal portion exposed, an insulating layer (6) is disposed so as to cover the support portion; and with a solder straddled a surface and an edge portion of the terminal portion, the ball is soldered to the terminal portion. Accordingly, the terminal structure that is large in the peel strength of the ball from the terminal portion and of the terminal portion from the base material can be obtained.
Bibliography:Application Number: EP20030250776