Abstract: An enhanced memory module assembly comprises a memory module including a substrate with a plurality of conductive traces arranged in an edge thereof. A first connector is detachably and electrically assembled to the edge of the substrate and includes a first housing having an elongate slot extending along a longitudinal direction thereof. The housing further defines a plurality of terminal cell with a plurality of first terminals assembled therein. Each terminal includes a first end extending into the elongate slot for electrically contacting with the conductive traces, and second end. A second connector is electrically connected to the first connector and includes a second housing. The first and second terminals are electrically connected when the first and second connectors are mated.

Abstract: An enhanced memory module assembly comprises a memory module including a substrate with a plurality of conductive traces arranged in an edge thereof. A first connector is detachably and electrically assembled to the edge of the substrate and includes a first housing having an elongate slot extending along a longitudinal direction thereof. The housing further defines a plurality of terminal cell with a plurality of first terminals assembled therein. Each terminal includes a first end extending into the elongate slot for electrically contacting with the conductive traces, and second end. A second connector is electrically connected to the first connector and includes a second housing. The first and second terminals are electrically connected when the first and second connectors are mated.

Abstract: A contact (1) for use with an electrical connector (2) for interconnecting a daughter board (4) and a mother board (3) in a mutually perpendicular relation, comprises a body portion (10) having an upper arm (12) and a lower arm (14). The upper arm extends in a first direction which is generally parallel to an axial direction of the body portion and the daughter board. The lower arm extends in a second direction which is generally perpendicular to the upper arm. The lower arm has a free end for engaging with the mother board. The upper arm has a free end with a curved edge (222) for engaging with the daughter board. The curved edge works in a plane that is mutually perpendicular to the first and second directions, facing the first direction. The contact has a body portion from which the upper and lower arms extend. The lower arm has a curved portion (16) which connects and offsets from the body portion. The curved portion moves in the third direction, facing the first direction.

Abstract: A male connector (10) includes first and second individual housing portions (28, 30) engaging with each other, a number of printed substrates (16) held by the first housing portion and a number of signal contacts (18) and a number of grounding terminals (20) held by the second housing portion with the signal contacts confronting the grounding terminals. Each printed substrate has a first edge (108) and a second edge (110) orthogonal with the first edge. The first edges of the printed substrates are hidden behind corresponding lead-in bars (44) of the first housing portion and the second edges of the printed substrates are sandwiched between and floatingly held by the signal contacts and the grounding terminals. The second edges are pushed toward the signal contacts because the grounding terminals are somewhat stronger than the signal contacts.

Abstract: An electrical connector (1) comprises a dielectric housing consisting of a first housing (10, 52) and a second housing (40, 51), a spacer (20) assembled at a bottom of the housing and a plurality of circuit boards (30). The housing defines a plurality of parallel channels (15) extending in a mating direction of the electrical connector. A plurality of bumps (106) extends downward from an upper wall of the housing in alignment with the channels for abutting against with an upper face of a corresponding circuit board. The spacer consists of a plurality of identical wafers (21) thereby each two adjacent wafers defining a slot (200) to receive a corresponding circuit board therein. Each wafer has a dielectric base (22), a plurality of terminals (23) attached on a first side of the dielectric base to electrically connect with a corresponding circuit board, and a grounding bus (24) mainly attached on an opposite second side of the dielectric base.

Abstract: A male connector (10) includes first and second individual housing portions (28, 30) engaging with each other, a number of printed substrates (16) held by the first housing portion and a number of signal contacts (18) and a number of grounding terminals (20) held by the second housing portion with the signal contacts confronting the grounding terminals. Each printed substrate has a first edge (108) and a second edge (110) orthogonal with the first edge. The first edges of the printed substrates are hidden behind corresponding lead-in bars (44) of the first housing portion and the second edges of the printed substrates are sandwiched between and removeably held by the signal contacts and the grounding terminals. The second edges of the printed substrates are pushed toward the signal contacts by the grounding terminals because the grounding terminals are somewhat stronger than the signal contacts.

Abstract: An electrical connector (50) mounted on a daughter backplane circuit board is used to mate with a complementary connector (60) mounted on the primary backplane circuit board. The connector (50) includes a top housing (51) and a bottom housing (52) and inner circuit boards (70) installed therebetween. Rows of paired signal contacts (80) and grounding plates (90) are arranged in an alternating sequence within the bottom housing (52) to engage with signal trace pairs (71) on one surface of the inner circuit boards (70) and grounding layers on both surfaces thereof. Similar arrangement of signal contacts and grounding plates (63) is adopted within the complementary connector (60).

Abstract: A method for manufacturing an electrical connector assembly (100) comprises the steps of: (a) providing a plurality of first wafers (21) each having a first block (25) and a second block (26) disposed on opposite surfaces; (b) inserting terminals (23) into corresponding first wafers and inserting a plurality of grounding buses (24) between every two adjacent first wafers to defines a first spacer (20), each grounding bus including a body portion and a contacting legs (242) on the surfaces of corresponding first spacer; (c) inserting a plurality of circuit boards (30) into slots (27) between the first wafers, in which the circuit boards electrically engage the grounding buses; (d) bringing the first spacer and the circuit boards into a housing (10) to form a receptacle (1); (e) repeating the steps (a) to (d) to form a second spacer (90) having identical structure with the first spacer; and (f) inserting the second spacer into a second housing (82) to form a header (8), inserting the header into the receptacle

Abstract: An electrical connector assembly comprises a receptacle (1) and a header (8). The receptacle comprises a first interface connection piece (20) including a plurality of first wafers (21) assembled together to define a plurality of slots (200) between adjacent first wafers. Each first wafer includes a plurality of signal terminals and a grounding member mounted on opposite sides of a dielectric base thereof. A plurality of daughter circuit boards (30) each has a first mating portion (302) and a second mating portion (300). The mounting portions are inserted into the slots of the first interface connection piece and engage with the signal contacts and the grounding member. The header has a second interface connection piece (90) including a plurality of second wafers (91) assembled together to define a plurality of slots (900) between adjacent second wafers. Each second wafer has an identical construction with that of the first wafer.

Abstract: An electrical connector (1) mounted on a daughter backplane circuit board is used to mate with a complementary connector (2) mounted on the primary backplane circuit board. The connector (1) includes a top housing (11) and a bottom housing (12) and inner circuit boards (3) installed therebetween. Rows of paired signal contacts (5) and grounding plates (4) are arranged in an alternating sequence within the bottom housing (12) to engage with the inner circuit boards (3). Two projections (37) extend out of edges of every inner circuit board (3) so that the inner circuit board (3) can be positioned after the projections (37) are inserted into corresponding holes (15, 19) formed respectively in the top and bottom housing (11, 12) when the connector (1) is assembled.

Abstract: A male connector (10) includes first and second individual housing portions (28, 30) engaging with each other, a number of substrates (16) held by the first housing portion and a number of signal contacts (18) and a number of grounding terminals (20) held by the second housing portion with the signal contacts confronting the grounding terminals. Each substrate has a first edge (108) and a second edge (110) orthogonal with the first edge. The first edges of the substrates are hidden behind corresponding lead-in bars (44) of the first housing portion and the second edges of the substrates are sandwiched between and removeably held by the signal contacts and the grounding terminals. The second edges are pushed toward the signal contacts by the grounding terminals because the grounding terminals are stronger than the signal contacts.

Abstract: An electrical connector assembly comprises a receptacle (1) and a header (8). The receptacle comprises a first interface connection piece (20) including a plurality of first wafers (21) assembled together to define a plurality of slots (200) between adjacent first wafers. Each first wafer includes a plurality of signal terminals and a grounding member mounted on opposite sides of a dielectric base thereof. A plurality of daughter circuit boards (30) each has a first mating portion (302) and a second mating portion (300). The mounting portions are inserted into the slots of the first interface connection piece and engage with the signal contacts and the grounding member. The header has a second interface connection piece (90) including a plurality of second wafers (91) assembled together to define a plurality of slots (900) between adjacent second wafers. Each second wafer has an identical construction with that of the first wafer.

Abstract: An electrical connector (50) includes a first housing member (52), a second housing member (60) attached to the first housing member by a cap (68), a plurality of contacts (64) and a plurality of grounding buses (66) assembled to the second housing member and a plurality of printed substrates (10) assembled to the first and second housing members. Each printed substrate has a first edge (28) adjacent a front face (56) of the first housing member, a perpendicular second edge (30) received in a slot (62) of the second housing member. The printed substrate has a plurality of couples of traces (14) and a plurality of grounding coatings (22) in on a first surface thereof and each grounding coating is located between two adjacent couples of traces. The printed substrate further has a row of first conductive pads (16) adjacent the first edge and a row of second conductive pads (18) adjacent the second edge and both rows are on the first surface.

Abstract: An electrical connector (50) includes a first housing member (52), a second housing member (60) attached to the first housing member by a cap (68), a plurality of contacts (64) and a plurality of grounding buses (66) assembled to the second housing member and a plurality of printed substrates (10) assembled to the first and second housing members. Each printed substrate has a first edge (28) adjacent a front face (56) of the first housing member, a perpendicular second edge (30) received in a slot (62) of the second housing member. The printed substrate has a plurality of couples of traces (14) and a plurality of grounding coatings (22) in on a first surface thereof and each grounding coating is located between two adjacent couples of traces. The printed substrate further has a row of first conductive pads (16) adjacent the first edge and a row of second conductive pads (18) adjacent the second edge and both rows are on the first surface.

Abstract: A contact (1) for use with an electrical connector (2) for interconnecting a daughter board (4) and a mother board (3) in a mutually perpendicular relation, comprises a body portion (10) having an upper arm (12) and a lower arm (14). The upper arm extends in a first direction which is generally parallel to an axial direction of the body portion and the daughter board. The lower arm extends in a second direction which is generally perpendicular to the upper arm. The lower arm has a free end for engaging with the mother board. The upper arm has a free end with a curved edge (222) for engaging with the daughter board. The curved edge works in a plane that is mutually perpendicular to the first and second directions, facing the first direction. The contact has a body portion from which the upper and lower arms extend. The lower arm has a curved portion (16) which connects and offsets from the body portion. The curved portion moves in the third direction, facing the first direction.

Abstract: An electrical connector (1) includes a number of individual wafers (21) assembled together to define a number of slots (200) therebetween for receiving a number of circuit boards (30) in the slots. Each wafer includes a dielectric base (22) and a number of signal contacts (23) and a grounding bus (24) respectively mounted on opposite sides of the dielectric base. Each grounding bus has a number of flaps (247) adjacent to a bottom edge thereof. Each signal contact has a tail portion (232) for electrically engaging with a printed circuit board on which the connector is mounted, and an end portion (236) located near the tail portion and aligned with a corresponding flap of the grounding bus. The flaps are disposed between the end portions of the signal contacts of adjacent rows for functioning as shielding between the end portions, thereby ensuring better signal transmission performance of the connector.

Abstract: An electrical connector (1) comprises a dielectric frame (10) defining a receiving cavity (12), a plurality of printed circuit substrates (30), and a spacer (20) assembled with the printed circuit substrates. The spacer includes a plurality of wafers (21) and defines a plurality of tunnels (22) between every two adjacent wafers for receiving corresponding printed circuit substrates. Each wafer has a dielectric body (23), a plurality of terminals (25) for conductively contacting signal traces of the printed circuit substrate, and a grounding bus (24) covering on the dielectric body. Each grounding bus forms at least one resilient arm (28) conductively contacting with grounding traces on the printed circuit substrate before the signal terminals conductively contact the signal traces on the printed circuit substrate.

Abstract: An electrical connector (1) comprises an insulative housing (10) defining a plurality of channels (14), a plurality of circuit boards (30) partially received in the channels, and a spacer (20) assembled with the circuit boards. The spacer includes a plurality of wafers (21) and defines a plurality of tunnels (200) between every two adjacent wafers for partially receiving corresponding circuit boards. Each wafer has a body portion (22), a plurality of terminals (23) for conductively contacting with the circuit board, and a grounding bus (24) covering on the body portion. Each grounding bus forms lead-in portions (245, 248) at opposite sides of an upper end thereof for facilitating insertion of the circuit board and a neighboring circuit board.

Abstract: A backplane connector (100) includes a connector housing (1) defining plural openings (14) therethrough, a number of signal terminals (11) arranged in the connector housing, a number of circuit boards (2) retained in respective openings, and a shield member (3). Each circuit board is provided with signal traces (20) and conductive layer (21) on opposite sides thereof. The shield member substantially encloses the connector housing and the circuit boards. The shield member has a number of inwardly projected, resilient tabs (301) stamped therefrom. The resilient tabs are arranged in two staggered rows and each extend between adjacent circuit boards for mechanically and electrically contacting with the conductive layer of a corresponding circuit board to thereby achieve a grounding purpose.

Abstract: An electrical connector (1) includes a dielectric housing (10) defining a number of parallel channels (14), and a spacer (20) consisting of a number of wafers (21) assembled together. A number of slots (200) is defined between adjacent wafers. Each wafer includes a dielectric base (22), and a number of signal terminals (23) and a grounding bus (24) respectively mounted on opposite sides of the dielectric base. A number of circuit boards (30) is disposed between the housing and the spacer. Each circuit board has a mating portion (300) aligned with a corresponding channel of the housing, and a mounting portion (302) received in a corresponding slot of the spacer. The mounting portions of the circuit boards mechanically and electrically engage with the signal terminals and the grounding buses and do not have an engagement with the dielectric bases of the spacer.