US Patent No: 7,138,068
Number of patents in Portfolio can not be more than 2000
Printed circuit patterned embedded capacitance layer
Stats
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Nov 21, 2006
Issued date -
Mar 21, 2005
filing date -
11/084,938
serial no -
In Force
status
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Abstract
A method is disclosed for fabricating a patterned embedded capacitance layer. The method includes fabricating (1305, 1310) a ceramic oxide layer (510) overlying a conductive metal layer (515) overlying a printed circuit substrate (505), perforating (1320) the ceramic oxide layer within a region (705), and removing (1325) the ceramic oxide layer and the conductive metal layer in the region by chemical etching of the conductive metal layer. The ceramic oxide layer may be less than 1 micron thick.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,027,253 Printed circuit boards and cards having buried thin film capacitors and processing techniques for fabricating said boards and cards | 106 | 1990 | |
| 5,796,587 Printed circut board with embedded decoupling capacitance and method for producing same | 50 | 1996 | |
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| 6,183,880 Composite foil of aluminum and copper | 14 | 1998 | |
| 6,660,406 Method for manufacturing printed wiring board comprising electrodeposited copper foil with carrier and resistor circuit; and printed wiring board comprising resistor circuit | 7 | 2001 | |
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| 2004/0256,731 Dielectric composite material | 16 | 2003 | |
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| 6,005,777 Ball grid array capacitor | 21 | 1998 | |
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| 6,407,929 Electronic package having embedded capacitors and method of fabrication therefor | 83 | 2000 | |
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| 6,541,137 Multi-layer conductor-dielectric oxide structure | 47 | 2000 | |
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| 5,261,153 In situ method for forming a capacitive PCB | 164 | 1992 | |
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| 6,346,335 Copper foil composite including a release layer | 36 | 2000 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 21, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 21, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |