Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2005-03-29
2005-03-29
Lam, Cathy F. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S629000, C428S632000, C428S640000, C428S670000, C428S671000, C428S697000, C428S702000
Reexamination Certificate
active
06872468
ABSTRACT:
In one embodiment, a peelable circuit board foil (200) has a metal support layer (205) and a conductive metal foil layer (210) bonded by an inorganic release material (215). The conductive metal foil layer has a an exposed surface (212) that is coated with a high temperature anti-oxidant barrier (220) and has a roughness less than 0.05 microns RMS. In a second embodiment, the peelable printed circuit foil (200) has a crystallized dielectric oxide layer (405) disposed on the exposed surface of the conductive metal foil layer and an electrode layer (415) disposed on the crystallized dielectric oxide layer, forming a dielectric peelable circuit board foil (400) that may be adhered to a layer of a flexible or rigid circuit board, after which the metal support layer can be peeled away, leaving a capacitive structure including the metal foil layer, the crystallized dielectric oxide layer, and the electrode layer.
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“Lead Zirconate Titanaate Thin Films On Base-Metal Foils: An Approach For Embedded High K Passive Components” Journal of the American Ceramic Society, 84 (10) 2436 (2001).
Chelini Remy J.
Dean Timothy B.
Dunn Gregory J.
Gamboa Claudia V.
Lam Cathy F.
Lamb James A.
Motorola Inc.
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