发明名称 |
Package assembly and method of tuning a natural resonant frequency of a package |
摘要 |
A package assembly comprises an electronic device; a package body; at least a first plurality of leads having a first geometrical shape and a second plurality of leads having a second geometrical shape, protruding from the package body; each of the first plurality of leads being located in corners of the package body; or the first and the second plurality of leads arranged in at least a first row and a second row located in parallel to the first row; each of the rows comprising at least two leads; the first row being transformable into the second row by mirroring the first row along a symmetry plane of the package body; each of the first plurality of leads having the first geometrical shape different from the second geometrical shape. |
申请公布号 |
US8947887(B2) |
申请公布日期 |
2015.02.03 |
申请号 |
US200913142857 |
申请日期 |
2009.02.23 |
申请人 |
Freescale Semiconductor, Inc. |
发明人 |
Bauer Robert;Hauck Thorsten |
分类号 |
H05K1/18;H01L23/495 |
主分类号 |
H05K1/18 |
代理机构 |
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代理人 |
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主权项 |
1. A package assembly, comprising:
an electronic device; a package body; at least a first plurality of leads having a first geometrical shape and a second plurality of leads having a second geometrical shape, protruding from said package body; said first and said second plurality of leads arranged in at least a first row and a second row located in parallel to said first row; each of said rows comprising at least two leads; said first row being transformable into said second row by mirroring said first row along a symmetry plane of said package body; each of said first plurality of leads having said first geometrical shape different from said second geometrical shape; and wherein a width of each of said first plurality of leads differs from a width of each of said second plurality of leads, wherein said width of each of said first plurality of leads is a sum of n times said width of one of said second plurality of leads plus (n−1) times a pitch between two neighboring leads of said second plurality of leads, n being an integer number. |
地址 |
Austin TX US |