Abstract: An adapter is provided for mounting a ball grid array device on a pin-type integrated circuit socket, and includes a base plate and an interfacing plate. The base plate has a device mounting side formed with a plurality of solder pads thereon. The base plate is further formed with a plurality of upper through holes, each of which corresponds to one of the solder pads. The interfacing plate is formed with a plurality of lower through holes that correspond respectively with the upper through holes and are coaxial therewith. The interfacing plate further has a socket confronting side with a plurality of insert pins depending therefrom. Electrical conductors are provided on the base plate and the interfacing plate for connecting electrically and respectively the solder pads and the insert pins via the upper and lower through holes.

Abstract: A memory module includes parallel first and second printed circuit boards, each having a mounting edge, a chip mounting side with a set of memory chips mounted thereon, and signal traces that extend from the mounting edge and that are connected to the set of memory chips on the chip mounting side. A signal conductor unit is disposed between the first and second printed circuit boards, and interconnects the signal traces on the first and second printed circuit boards.

Abstract: An adapter is provided for mounting a ball grid array device on a pin-type integrated circuit socket, and includes a base plate and an interfacing plate. The base plate has a device mounting side formed with a plurality of solder pads thereon. The solder pads correspond to and are adapted for surface mounting of solder balls of the ball grid array device thereon. The base plate is further formed with a plurality of upper through holes, each of which corresponds to one of the solder pads. The interfacing plate is formed with a plurality of lower through holes that correspond respectively with the upper through holes. The interfacing plate further has a socket confronting side with a plurality of insert pins depending therefrom. The insert pins correspond to and are adapted for insertion into pin holes in the integrated circuit socket in order to establish electrical contact with board mounting pins that are disposed in the pin holes.

Abstract: An adapter is provided for mounting a ball grid array device on a pin-type integrated circuit socket, and includes a base plate and an interfacing plate. The base plate has a device mounting side formed with a plurality of solder pads thereon. The solder pads correspond to and are adapted for surface mounting of solder balls of the ball grid array device thereon. The base plate is further formed with a plurality of upper through holes, each of which corresponds to one of the solder pads. The interfacing plate is formed with a plurality of lower through holes that correspond respectively with the upper through holes. The interfacing plate further has a socket confronting side with a plurality of insert pins depending therefrom. The insert pins correspond to and are adapted for insertion into pin holes in the integrated circuit socket in order to establish electrical contact with board mounting pins that are disposed in the pin holes.