US2018082939A1PendingUtilityA1

Printed circuit board and method of fabricating an element

Assignee: SILICON MOTION INCPriority: Mar 18, 2016Filed: Nov 27, 2017Published: Mar 22, 2018
Est. expiryMar 18, 2036(~9.6 yrs left)· nominal 20-yr term from priority
H05K 3/242H05K 3/0097H05K 2201/09681H05K 2203/1316H05K 2203/072H05K 1/18H05K 3/00H05K 2203/0723H10P 54/00H10W 74/129H10W 74/016H10W 74/014H10W 72/0198H10W 70/657H10W 70/05H10W 72/00H10W 70/65H01L 23/3114H01L 21/565H01L 21/4846H01L 21/78H01L 23/49805H01L 23/49838H01L 24/97H01L 21/561
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Claims

Abstract

The present invention provides a printed circuit board fabricated by a Non-Plating Process that includes at least one plating bar disposed around at least one package unit of the printed circuit board. The package unit includes at least one ground line, at least one power line and a plurality of signal lines. The ground line has a first contact pad exposed on a surface of the printed circuit board, and at least one of the ground lines is connected to the plating bar. The power line has a second contact pad exposed on the surface, and at least one of the power lines is connected to the neighboring plating bar. The signal line has a third contact pad exposed on the surface.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A printed circuit board, being divided into at least one package unit, comprising:
 at least one plating bar, being disposed around the package unit, wherein the printed circuit board is fabricated by a Non-Plating Process, and each of the package units comprises:   at least one ground line, wherein the ground line has a first contact pad exposed on a surface of the printed circuit board, and at least one of the ground lines is connected to the plating bar;   at least one power line, wherein the power line has a second contact pad exposed on the surface of the printed circuit board, and at least one of the power lines is connected to the plating bar; and   a plurality of signal lines, wherein each of the signal lines has a third contact pad exposed on the surface of the printed circuit board and all of the signal lines of each of the package units are decoupled from the plating bars.   
     
     
         2 . The printed circuit board as claimed in  claim 1 , wherein the power line of each of the package units is connected to the neighboring plating bar. 
     
     
         3 . The printed circuit board as claimed in  claim 1 , wherein the plating bars are connected to ground. 
     
     
         4 . A printed circuit board, having a plurality of edges, comprising:
 at least one ground line, wherein the ground line has a first contact pad exposed on a first surface of the printed circuit board; and   at least one power line, wherein the power line has a second contact pad exposed on the first surface of the printed circuit board, wherein the printed circuit board is fabricated by a Non-Plating process, a terminal of at least one of the ground lines is extended to reach a first edge of the edges and exposed on a second surface which is on the first edge and vertical to the first surface, and a terminal of at least one of the power lines is extended to a second edge of the edges and exposed on a third surface which is on the second edge and vertical to the first surface.   
     
     
         5 . The printed circuit board as claimed in  claim 4 , wherein the terminals of the power lines are extended to reach the second edge and exposed on the third surface which is on the second edge. 
     
     
         6 . The printed circuit board as claimed in  claim 4 , wherein the terminals of all of the power lines are extended to reach the second edge of the edges and exposed on the third surface which is on the second edge. 
     
     
         7 . A method of fabricating an element, comprising:
 applying a non-plating process to fabricate a printed circuit board, wherein the printed circuit board is divided into a plurality of package units, and the non-plating process fabricating the printed circuit board comprises:   performing a first plating through at least one ground pad to form at least one ground line and at least one power line on the surface of each of the package units of the printed circuit board.   
     
     
         8 . The method as claimed in  claim 7 , wherein in the first plating, the at least one ground line and the at least one power line are coupled through a plating bar, so that the at least one ground line and the at least one power line are plated at the same time in the first plating. 
     
     
         9 . The method as claimed in  claim 7 , wherein in the first plating, the at least one ground line, the at least one power line are coupled through a plating bar, so that the at least one ground line, the at least one power line are plated at the same time in the first plating. 
     
     
         10 . The method as claimed in  claim 7 , further comprising a packaging process for manufacturing a plurality of elements, wherein the packaging process further comprises:
 performing a plurality of wirings to respectively bond dies with the package units;   molding the printed circuit board with the dies; and   cutting the molded printed circuit board to separate the package units and separate the ground lines from the power lines.

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