Semiconductor device and process for producing the same

When a semiconductor chip is mounted on a mount substrate by bonding bumps, bonding failure is caused by misalignment between the bumps. Before a semiconductor chip having a plurality of bumps is mounted on a mount substrate ( 3 ) having a plurality of bumps ( 4 ) by flip chip bonding, a resist laye...

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Bibliographic Details
Main Author SENDA AYUMI
Format Patent
LanguageEnglish
Published 10.08.2006
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:When a semiconductor chip is mounted on a mount substrate by bonding bumps, bonding failure is caused by misalignment between the bumps. Before a semiconductor chip having a plurality of bumps is mounted on a mount substrate ( 3 ) having a plurality of bumps ( 4 ) by flip chip bonding, a resist layer ( 5 ) having a thickness larger than that of the bumps ( 4 ) is formed on the mount substrate ( 3 ) with the bumps. By patterning the resist layer ( 5 ), projecting guides ( 5 A) of semicircular cross section are formed on the mount substrate ( 3 ) so as to protrude near the bumps ( 4 ) and from a surface on which the bumps ( 4 ) are provided, and to have guide faces (curved faces) pointing toward the bumps ( 4 ).
Bibliography:Application Number: US20050539987