Patent ID: 7211470
Filing Date: 2007-05-01
Classification: H01L,H05K

Abstract:
1. A method of depositing conductive paste within openings of a circuitized substrate, said method comprising: providing a vacuum base member having a porous member positioned thereon; providing a circuitized substrate having first and second opposing surfaces and a plurality of openings therein extending substantially through said circuitized substrate; positioning said circuitized substrate having said plurality of openings therein on said porous member positioned on said vacuum base member such that said first opposing surface of said circuitized substrate rests on said porous member; and applying a quantity of conductive paste across said second opposing surface of said circuitized substrate while substantially simultaneously applying a vacuum through said porous member to substantially completely fill selected ones of said plurality of openings within said circuitized substrate with said conductive paste, said applying of said quantity of conductive paste being accomplished using a first squeegee drawn across said second opposing surface of said circuitized substrate in a first direction and a second squeegee drawn across said second opposing surface of said circuitized substrate also in said first direction and after said first squeegee is drawn across said second opposing surface.