Patent ID: 6272742
Filing Date: 2001-08-14
Classification: H05K,Y10T

Abstract:
A method for electrically connecting first and second substrates each having at least one signal line therein in an electronic circuit package, said method comprising the steps of:placing one or more blind vias in said first substrate;placing one or more blind vias in said second substrate;electrically connecting one or more of said signal lines in each of said first and second substrates to one or more of said one or more blind vial in said first and second substrates, respectively;electrically connecting said one or more of said blind vias in said first substrate with respective ones of said one or more of said blind vias in said second substrate by positioning one or more solder balls over the openings of said substrates and providing solder paste relative to said one or more solder balls; andthereafter performing a solder reflow operation.