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Full text of "USPTO Patents Application 10020506"

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if i hi mi mr ii 



Attorney: Robert A. Green 
Docket No.: 47490/RAG/S968 
1nventor(s): Kalu K Vasoya et al 
LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 
Sheet 2 of 15 



First lamination cycle 



Second lamination cycle 



Pattern electrically 
conductive layers 



FIG. 2A 



Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K Vasoyaetai. 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 3 of 15 




FIG. 2B 



Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
Inventor(s): Kalu K Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 4 of 15 




Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
Inventor(s): Kalu K Vasoya et al. 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 5 of 15 




Attorney: Robert A. Green 
Docket No.: 47490/RAG/S968 
Inventor(s): Kalu K Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 6 of 15 




Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K. Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 7 of 15 




Attorney: Robert A Green 
Docket No.: 4749G/RAG/S968 
Inventor(s): Kalu K Vasoya et al. 
LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 
Sheet 8 of 15 




Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
Inventor(s): Kalu K. Vasoya et a! 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 9 of 15 




Attorney: Robert A. Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K. Vasoya et al. 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 10 of 15 




Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K. Vasoya et a!. 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 11 of 15 




Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
Inventor(s): Kalu K Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 12 of 15 



M 
Q 



152^ 



154^ 



156^ 



158^ 



160* 



162* 



164* 



Form two laminates 



Pattern power or ground 
regions on laminates 



Oxide treatment 



Clearance hole drilling 



Second lamination 



Chimney drilling 



Chimney copper plating 



Pattern circuit layers 



Oxide treatment on all 
patterned layers 



Third lamination 



Final drilling 



Copper plating 



Pattern outer circuit layers 



-166 



^168 



v 150 



-170 



-172 



-174 



-176 



FIG. 11 A 



Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K. Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 13 of 15 



192 



194 



Create model of structure 
ofPWB 




r 



Copper pouring on outer 
layers 



196 



Add chimneys 



FIG. 11 B 



Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K. Vasoya et al 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 14 of 15 



Create model of structure of 
PWB 



Determine locations of through 
holes and ground plane or power 
plane intersections 



Determine subset of locations 
where an electrical connection is 
not desired 






FIG. 11 C 



Attorney: Robert A Green 
Docket No.: 47490/RAG/S968 
lnventor(s): Kalu K Vasoya et a) 
Title: LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES 

Sheet 15 of 15