The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2005
Filed:
Jul. 12, 2002
Choon Heung Lee, Kyunggi-do, KR;
Sung Sik Jang, Kyunggi-do, KR;
Su Yol Yoo, Seoul, KR;
Amkor Technology, Inc., Chandler, AZ (US);
Abstract
A leadframe comprising a frame body having four peripheral sides, each adjacent pair of which collectively defines a frame corner. Disposed within a central space or opening defined by the frame body is a die paddle including four peripheral edge segments, each adjacent pair of which collectively define a paddle corner. The leadframe also includes a plurality of tie bars, each of which comprises a first portion extending from a respective paddle corner of the die paddle and a second portion which extends angularly from the first portion and perpendicularly into connection with one of the sides of the frame body. Connected to and extending from the sides of the frame body toward and in spaced relation to respective ones of the peripheral edge segments of the die paddle are a plurality of leads. Additionally, connected to and extending from the sides of the frame body in close proximity to respective ones of the frame corners are a plurality of corner leads. Each of the corner leads extends in spaced, generally parallel relation to at least one of the peripheral edge segments of the die paddle.