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A multilayer printed circuit board having clustered blind vias in power layers to facilitate the routing of signal traces in signal layers. A portion of the blind vias in the power layers are grouped together to form a cluster of blind vias. Corresponding signal routing channels are provided in the

A multilayer printed circuit board having clustered blind vias in power layers to facilitate the routing of signal traces in signal layers. A portion of the blind vias in the power layers are grouped together to form a cluster of blind vias. Corresponding signal routing channels are provided in the signal layers and aligned with the cluster of blind vias in the power layers to permit routing of signal traces or signal circuitry therethrough. A method of manufacturing the multilayered printed circuit board includes assembling a first subassembly of power layers, forming a group of clustered power vias through the first subassembly, assembling a second subassembly of signal layers, combining the first subassembly with the second subassembly such that the clustered vias in the first subassembly align with signal routing channels in the second subassembly, forming signal vias that extend through the first and second subassemblies, and seeding or plating the power and signal vias.

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A multilayer printed circuit board having clustered blind vias in power layers to facilitate the routing of signal traces in signal layers. A portion of the blind vias in the power layers are grouped together to form a cluster of blind vias. Corresponding signal routing channels are provided in the

A multilayer printed circuit board having clustered blind vias in power layers to facilitate the routing of signal traces in signal layers. A portion of the blind vias in the power layers are grouped together to form a cluster of blind vias. Corresponding signal routing channels are provided in the signal layers and aligned with the cluster of blind vias in the power layers to permit routing of signal traces or signal circuitry therethrough. A method of manufacturing the multilayered printed circuit board includes assembling a first subassembly of power layers, forming a group of clustered power vias through the first subassembly, assembling a second subassembly of signal layers, combining the first subassembly with the second subassembly such that the clustered vias in the first subassembly align with signal routing channels in the second subassembly, forming signal vias that extend through the first and second subassemblies, and seeding or plating the power and signal vias. in Kinase from Soluble and Membrane Fractions of Maize Coleoptiles Biochemical and Biophysical Research Communications, vol. 170, No. 1 (Jul. 16, 1990) pp. 17-22. Harper et al., A Calcium-Dependent Protein Kinase With a Regulatory Domain Similar to Calmodulin Science, vol. 252, (May 17, 1991) pp. 951-954. Polya et al., Ca2+-dependent protein phosphorylation in germinated pollen of Nicotiana alata, an ornamental tobacco Physiologia Plantarum, vol. 67 (1986) pp. 151-158. Polya et al., Database Biosis Online, Biosciences Information Service, Philadelphia, PA, US; 1986: Calcium-Dependent Protein Phosphorylation in Germinated Pollen of Nicotiana-Alata an Ornamental Tobacco Accession No. PREV 198682086815. Putnam-Evans et al., Database Biosis Online, Biosciences Information Service, Philadelphia, PA, US; 1989: Calcium-Dependent Protein Kinase is Localized with F Actin in Plant Cells Accession No. PREV19897075577. Putnam-Evans et al., Calcium-Dependent Protein Kinase is Localized With F-Actin in Plant Cells Cell Motility and Cytoskeleton, vol. 12 (1989) pp. 12-22. Suen, K.L. and Choi, J.H., Isolation and sequence analysis of a cDNA clone for a carrot calcium-dependent protein kinase: homology to calcium/calmodulin-dependent protein kinases and to calmodulin Plant Molecular Biology, vol. 17 (1991) pp. 581-590. Barton et al., Bacillus thuringiensis delta-endotoxin expressed in transgenic Nicotiana tabacum provides resistance to lepidopteran insects Plant Physiology, vol. 85 (1987) pp. 1103-1109. Cheng, X. et al. Agrobacterium-transformed rice plants expressing synthetic crylA(b) and crylA(c) genes are highly toxic to striped stem borer and yellow stem borer Proceedings of the National Academy of Sciences, vol. 95 (Mar. 1998) pp. 2767-2772. De Rocher, E.J. et al., Direct Evidence for Rapid Degradation of Bacillus thuringiensis Toxin mRNA as a Cause of Poor Expression in Plants Plant Physiology, vol. 117 (1998) pp. 1445-1461. Del Vecchio Blanco, F. et al., A recombinant ribosome-inactivating protein from the plant Phytolacca diolca L. produced from a synthetic gene Federation of European Biochemical Societies Letters, vol. 437 (1998) pp. 241-245. Fischoff et al., Insect Tolerant Transgenic Tomato Plants Bio/Technology vol. 5 (1987) pp. 807-813. Geiser, et al. The hypervariable region in the genes coding for entomopathogenic crystal proteins of Bacillus thuringiensis: Nucleotide sequence of the kurhd1 gene of subsp. kurstaki HD1 Gene, vol. 48 (1986) pp. 109-118. Harper et al., Calcium and lipid regulation of an Arabidopsis protein kinase expressed in E. coli Biochemistry, vol. 32, No. 13 (1993) pp. 3282-3290. He, Y.K. et al., Differential mercury volatilization by tobacco organs expressing a modified bacterial merA gene Cell Research, vol. 11(3) (2001) pp. 231-236. Huang, J. et al. Expression and Purification of Functional Human α-1-Antitrypsin from Cultured Plant Cells Biotechnology Progress, vol. 17 (2001) pp. 126-133. Kim, et al. A 20 nucleotide upstream element is essential for the nopaline synthase (nos) promoter activity Plant Molecular Biology, vol. 24 (1994) pp. 105-117. Kuvshinov, V. et al., Transgenic crop plants expressing synthetic cry9Aa gene are protected against insect damage Plant Science, vol. 160 (2001) pp. 341-353. Mason, H. S. et al., Edible vaccine protects mice against Escherichia coli heat-labile enterotoxin (LT): potatoes expressing a synthetic LT-B gene Vaccine, vol. 16, No. 13 (1998) pp. 1336-1343. Murray et al. Codon Usage in Plant Genes Nucleic Acids Research, vol. 17 (1989) pp. 477-498. Murray et al., Analysis of unstable RNA transcripts of insecticidal crystal protein genes of Bacillus thuringiensis in transgenic plant and electroporated protoplasts Plant Molecular Biology, vol. 16 (1991) pp. 1035-1050. Ohta et al. High-level expression of a sweet potato sporamin gene promoter: beta-glucuronidase (GUS) fusion gene in the stems of transgenic tobacco plants is conferred by multi