Circuit card with flexible connection for memory module with heat spreader

A memory module comprising:

• a main printed-circuit board (PCB) having a first side and a second side, the main PCB comprising a plurality of edge connectors configured to be in electrical communication with corresponding socket connectors of a computer system, the main PCB further comprising a first plurality of contacts in electrical communication with the plurality of edge connectors;
• and
• a first daughter circuit card positioned on the first side of the main PCB and oriented generally parallel to the main PCB, the first daughter circuit card comprising a rigid portion and a plurality of memory devices mounted thereto, the first daughter circuit card further comprising a flexible connector and a second plurality of contacts thereon, the second plurality of contacts in electrical communication with the first plurality of contacts, the flexible connector having a first side and a second side, the flexible connector comprising:
• a dielectric layer;
• a plurality of electrical conduits on the first side of the flexible connector, the plurality of electrical conduits in electrical communication with the plurality of memory devices and the second plurality of contacts;
• and
• an electrically conductive layer on the second side of the flexible connector, the electrically conductive layer superposed with the plurality of electrical conduits with the dielectric layer therebetween, wherein the electrically conductive layer does not cover one or more portions of the second side of the flexible connector, thereby providing improved flexibility of the flexible connector.

A computer system comprising a memory module comprising:

• a printed-circuit board (PCB) having a first side and a second side, the PCB comprising a plurality of edge connectors configured to be in electrical communication with corresponding socket connectors of a computer system, the PCB further comprising a first plurality of contacts in electrical communication with the plurality of edge connectors;
• and
• a first daughter circuit card positioned on the first side of the PCB and oriented generally parallel to the PCB, the first daughter circuit card comprising a rigid portion and a plurality of memory devices mounted thereto, the first daughter circuit card further comprising a flexible connector and a second plurality of contacts thereon, the second plurality of contacts in electrical communication with the first plurality of contacts, the flexible connector having a first side and a second side, the flexible connector comprising:
• a dielectric layer;
• a plurality of electrical conduits on the first side of the flexible connector, the plurality of electrical conduits in electrical communication with the plurality of memory devices and the second plurality of contacts;
• and
• an electrically conductive layer on the second side of the flexible connector, the electrically conductive layer superposed with the plurality of electrical conduits with the dielectric layer therebetween, wherein the electrically conductive layer does not cover one or more portions of the second side of the flexible connector, thereby providing improved flexibility of the flexible connector.

An electronic circuit module for a computer system, the module comprising:

• a first printed-circuit board (PCB) having an edge connector, a first side, and a second side;
• a first plurality of electrical components mounted on the first side of the first PCB, the first plurality of electrical components electrically coupled to the edge connector;
• a second plurality of electrical components mounted on the second side of the second PCB, the second plurality of electrical components electrically coupled to the edge connector;
• a second PCB having a first side facing towards the first PCB and a second side facing away from the first PCB;
• a third plurality of electrical components mounted on the first side of the second PCB;
• a fourth plurality of electrical components mounted on the second side of the second PCB;
• at least one electrical conduit between the first PCB and the second PCB, the at least one electrical conduit electrically coupling the third plurality of electrical components to the edge connector and electrically coupling the fourth plurality of electrical components to the edge connector;
• and
• a heat spreader comprising a thermally conductive material, the heat spreader comprising:
• a first portion thermally coupled to the first plurality of electrical components;
• a second portion thermally coupled to the second plurality of electrical components and to the third plurality of electrical components;
• and
• a third portion thermally coupled to the fourth plurality of electrical components.