Chip resistor and method for making the same
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United States of America Patent
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-
Oct 11, 2011
Grant Date -
Aug 12, 2010
app pub date -
Apr 23, 2009
filing date -
Feb 6, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a chip resistor and method for making the same. The chip resistor includes a substrate, a pair of bottom electrodes, a resistive film, a pair of main upper electrodes, a first protective coat, a pair of barrier layers, a second protective coat, a pair of side electrodes and at least one plated layer. The first protective coat is disposed over the resistive film, and covers part of the main upper electrodes. The barrier layers are disposed on the main upper electrodes, and cover part of the first protective coat. The second protective coat is disposed on the first protective coat, and covers part of the barrier layers. The plated layers cover the barrier layers, the bottom electrodes and the side electrodes. As a result, the chip resistor features high corrosion resistance.
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