Patent ID: 8641453

Claim:
A memory module, comprising: a module substrate having a side portion, the side portion configured for insertion into a socket of a main board; a plurality of connection pads on the module substrate along the side portion, one or more of the plurality of connection pads having a step portion and a contact portion, the step portion being of a first height from a surface of the module substrate, the contact portion being of a second height from the surface of the module substrate, the second height being greater than the first height; and at least one semiconductor package on the module substrate, the at least one semiconductor package electrically connected to one or more of the plurality of connection pads, wherein the side portion of the module substrate is configured for insertion by an interference fit within the socket of the main board, the module substrate configured such that a connector pin of the socket arrives at the contact portion of the plurality of connection pads via the step portion.