发明名称 |
Thin radio frequency transponder with leadframe antenna structure |
摘要 |
A novel radio frequency transponder (tag) with a minimum of components and connects is thin and flexible because these components and connects can be unsupported by a substrate layer. This is accomplished by using a conducting leadframe structure not only as a connection medium but also as a circuit element, i.e., the transponder antenna. In various preferred embodiments, the leadframe is mechanically positioned and fixably attached to a circuit chip so that the leadframe (antenna) is self supporting. A protective coating can be added where the leadframe is attached to the circuit chip. Further a protective surrounding can envelops the entire leadframe antenna, circuit chip, and, if provided, the protective coating.
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申请公布号 |
US5786626(A) |
申请公布日期 |
1998.07.28 |
申请号 |
US19960621784 |
申请日期 |
1996.03.25 |
申请人 |
IBM CORPORATION |
发明人 |
BRADY, MICHAEL J.;FAVREAU, NORMAND GILLES;GUINDON, FRANCOIS;MOSKOWITZ, PAUL ANDREW;MURPHY, PHILIP |
分类号 |
H01Q1/40;G06K19/077;H01L23/29;H01L23/31;H01L23/495;H01Q1/24;H04B1/59;(IPC1-7):H01L23/495;H01L23/48;H01L23/52;H01L29/40 |
主分类号 |
H01Q1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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