Interconnect architecture with stacked flex cable

Abstract

Stacked flex cable assemblies and their manufacture are described. One assembly includes a first flex cable and a second flex cable electrically coupled to the first flex cable. The assembly also includes a connector electrically coupled to the first flex cable. The first flex cable is positioned between the connector and the second flex cable. Other embodiments are described and claimed.

What is claimed: 
     
         1 - 14 . (canceled) 
     
     
         15 . A method for forming a stacked flex cable assembly, comprising:
 coupling a first flex cable to a second flex cable; and   coupling a connector to the first flex cable;   wherein the first flex cable is positioned between the connector and the second flex cable.   
     
     
         16 . The method of  claim 15 , wherein the coupling the connector to the first flex cable comprises forming a solder connection between the connector and the first flex cable, and wherein the coupling the first flex cable to the second flex cable comprises forming a solder connection between the first flex cable and the second flex cable. 
     
     
         17 . The method of  claim 16 , wherein the coupling the connector to the first flex cable is carried out prior to the coupling the first flex cable to the second flex cable. 
     
     
         18 . The method of  claim 16 , wherein the forming a solder connection between the connector and the first flex cable and the forming a solder connection between the first flex cable and the second flex cable are carried out during a single heating operation. 
     
     
         19 . The method of  claim 15 , further comprising positioning the connector on a substrate in electrical contact with a semiconductor die. 
     
     
         20 . A method for forming a stacked flex cable assembly, comprising:
 providing a flex cable including a first flex cable portion and a second flex cable portion;   coupling a connector to the flex cable;   coupling a body to the flex cable, wherein the body is positioned on an opposite side of the flex cable than the connector; and   bending the flex cable around the body so that the stacked flex cable assembly comprises a first flex cable portion positioned on a first side of the body, a second flex cable portion positioned on a second side of the body opposite the first side, and a curved flex cable portion connecting the first flex cable portion and the second flex cable portion.   
     
     
         21 . The method of  claim 20 , wherein the coupling the connector to the flex cable is carried out prior to the coupling the body to the flex cable. 
     
     
         22 . The method of  claim 20 , wherein the coupling the connector to the flex cable comprises forming a solder connection between the body and the flex cable. 
     
     
         23 . The method of  claim 20 , further comprising coupling the connector to the flex cable so that:
 a first group of electrical signals may travel from the connector away from the curved flex cable portion and along the first flex cable portion; and   a second group of electrical signals passed through the connector may travel from the connector towards and around the curved flex cable portion and along the second flex cable portion.   
     
     
         24 . The method of  claim 20 , wherein the second flex cable portion extends in a direction parallel to that of the first flex cable portion. 
     
     
         25 . The method of  claim 20 , further comprising positioning the connector on a substrate in electrical contact with a semiconductor die. 
     
     
         26 . A method for forming a stacked flex cable assembly comprising:
 coupling a first flex cable portion to a second flex cable portion;   coupling a connector to the first flex cable portion; and   coupling a stiffener to the second flex cable portion;   wherein the first flex cable portion is located between the second flex cable portion and the connector.   
     
     
         27 . The method of  claim 26 , wherein the stiffener is located between the first flex cable portion and the second flex cable portion. 
     
     
         28 . The method of  claim 27 , wherein the first flex cable portion and the second flex cable portion are part of a single flex cable. 
     
     
         29 . The method of  claim 28 , wherein the single flex cable includes a curved region extending from the first flex cable portion to the second flex cable portion. 
     
     
         30 . The method of  claim 26 , including forming the stacked flex cable assembly from a plurality of flex cables, wherein the first flex cable portion is part of a first flex cable and the second flex cable portion is part of a second flex cable. 
     
     
         31 . The method of  claim 30 , including positioning the connector and the stiffener so that the first flex cable portion and the second flex cable portion are located therebetween. 
     
     
         32 . The method of  claim 26 , wherein the coupling the connector to the first flex cable portion is carried out prior to the coupling the first flex cable portion to the second flex cable portion. 
     
     
         33 . The method of  claim 26 , wherein the coupling the first flex cable portion to the second flex cable portion and the coupling the connector to the first flex cable portion are carried out during a single heating operation. 
     
     
         34 . The method of  claim 26 , further comprising providing a first group of electrically conductive pathways that extend from the first flex cable portion to the connector, and providing a second group of electrically conductive pathways that extend from the second flex cable portion to the connector, the second group of electrically conductive pathways passing through the first flex cable portion prior to reaching the connector.