Power bar design for lead frame-based packages

• Main Authors: TENG SENG KIONG, FOONG CHEE SENG, TAN LAN CHU, LYE MENG KONG
• Format: Patent
• Language: English
• Published: 03.11.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A semiconductor device includes a semiconductor die encapsulated in a package casing and having four main side walls each oriented generally parallel with one of first or second orthogonal directions. Signal leads are electrically coupled to the die and each has an exposed portion that extends from one of the main side walls parallel with one of the first or second directions. One or more power bars are electrically coupled to the die and each has at least one power bar lead extending at a non-zero angle with respect to the first and second directions. The power bars and associated power bar leads are electrically isolated from the signal leads. One or more tie bars extends at a generally non-zero angle with respect to the first and second directions and is electrically isolated from the signal leads and the power bars and associated power bar leads.