National Semiconductor Corporation

Terh Kuen Yii

Peng Soon Lim

Lee Han Meng@Eugene Lee

Yee Kim Lee

Felix C Li

Sek Hoi Chong

Ken Pham

You Chye How

Shee Min Yeong

Mohd Sabri Bin Mohamad Zin

A semiconductor package configured to attain a thin profile and low moisture sensitivity. Packages of this invention can include a semiconductor die mounted on a die attachment site of a leadframe and further connected with a plurality of elongate I/O leads arranged about the die attach pad and extending in said first direction. The leadframe having an 'up-set' bonding pad arranged with a bonding support for supporting a plurality of wire bonds and a large mold flow aperture in the up-set bonding pad. The package encapsulated in a mold material that surrounds the bonding support and flows through the large mold flow aperture to establish well supported wire bonds such that the package has low moisture sensitivity.

Delamination resistant device package having raised bond surface and mold locking aperture

A lead frame and package construction configured to attain a thin profile and low moisture sensitivity. Lead frames of this invention may include a die attach pad having a die attachment site and an elongate ground lead that extends from the die attach pad. The lead frame includes a plurality of elongate I/O leads arranged about the die attach pad and extending away from the die attach pad in at least two directions. An inventive lead frame features 'up-set' bonding pads electrically connected with the die attach pad and arranged with a bonding surface for supporting a plurality of wire bonds. The bonding surfaces also constructed to define at least one mold flow aperture for each up-set bonding pad. A package incorporating the lead frame is further disclosed such that the package includes an encapsulant that surrounds the bonding support and flows through the mold flow aperture to establish well supported wire bonds such that the package has low moisture sensitivity. Such packages can be constructed in single inline configuration, dual inline configuration, quad package configurations.

Delamination resistant device package having low moisture sensitivity

A lead frame and package construction configured to attain a thin profile and low moisture sensitivity. Lead frames of this invention may include a die attach pad having a die attachment site and an elongate ground lead that extends from the die attach pad. The lead frame includes a plurality of elongate I/O leads arranged about the die attach pad and extending in said first direction. An inventive lead frame features an 'up-set' bonding pad electrically connected with the die attach pad and arranged with a bonding support for supporting a plurality of wire bonds. The lead frame also having a large mold flow aperture in the up-set bonding pad. A package incorporating the lead frame is further disclosed such that the package includes an encapsulant that surrounds the bonding support and flows through the large mold flow aperture to establish well supported wire bonds such that the package has low moisture sensitivity.

TO263 device package having low moisture sensitivity

An improved leadframe panel suitable for use in packaging IC dice for use in power applications is described. The described leadframe panel enables more efficient means of encapsulation and singulation as compared with a conventional power leadframe panel. Additionally, a thin IC power package is described that enables increased package heat dissipation, the use of a larger die attach pad as well as the use of a larger die as compared with conventional power devices.

Leadframe panel for power packages

An improved leadframe panel suitable for use in packaging IC dice is described. The described leadframe panel is configured such that the amount of leadframe material that is removed during singulation of the leadframe panel is reduced.

Leadframe panel

Apparatuses and methods directed to a semiconductor chip package having an optical component are disclosed. Packages include a die having a light sensing region and a stress buffer on a first surface, a first opaque encapsulant having an opening therethrough disposed atop the first surface, and a second transparent or translucent encapsulant formed within the first encapsulant opening and directly atop and contacting the light sensing region. A leadless leadframe or other conductive component can be coupled to a second surface of the die. The die may also have light sensitive regions that are shielded by the first encapsulant and/or stress buffer. The stress buffer can be a layer formed at the wafer stage or a dam formed at the panel stage. A customized mold is used while dispensing the first encapsulant such that the opening therethrough is properly formed.

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Kuala Lumpur, Malaysia

Terh Kuen Yii