Abstract: A conductive contact (1) used for an electrical connector comprises a vertical base portion (10) defining a front surface (103) and a rear surface (101) opposite to each other in a thickness direction, the base portion (10) having at least one fastening slot (102) on the rear surface (101) thereof for securing the conductive contact (1) in an insulative housing of the electrical connector (100), a tail portion (12) located below said base portion (10) for mounting to a printed circuit board, an extension (13) located above said base portion (10), and a pair of arm portions (11) extending slantingly from opposite edges of the extension (13) in an upward direction.

Abstract: An electrical connector (100) includes an insulating base (10) defining therein a plurality of receiving units (11) each surrounded by sidewalls (13). A cover (20) is moveably disposed on the insulating base (10) and includes a plurality of apertures (21) each aligned with the receiving units (11). A driving mechanism (30) is disposed on the base to drive the cover (20) to move along the base (10). Each receiving unit (11) includes a leading-and-positioning arrangement (14) extending from an inner sidewall (13b) thereof, and dividing the receiving unit into a first space (110) and a second space (111). A plurality of terminals (40) is received in said receiving units (11), each comprises a contacting portion (42) projecting into the second space (111) of the receiving unit (11).

Abstract: An IC socket comprises a base, a cover moveably mounted to the base, and an actuating mechanism driving the cover to move between a first position and a second position. The base includes a plurality of passageways and at least a rib extending upwardly from a top surface. The cover defines a hole corresponding to the rib and has a plurality of apertures corresponding to the passageways.

Abstract: An LGA connector (100) adapted for receiving an electronic package (10), includes a housing (2) and a number of contacts received in the housing, a stiffener (3) enclosing the housing, a cover (5) pivotable between an open position and a closed position, and a lever (4) adapted for retaining the cover. The cover includes a pair of opposite first edges (53) each having a pair of resisting beams (531) extending toward opposite directions and projecting toward the housing. The resisting beams resiliently resist against the electronic package when the cover is rotated to the closed position.

Abstract: This invention discloses a voltage-type gas concentration sensor and sensing method thereof. An ionic sensing electrode, a solid electrolyte membrane and a gas-permeable membrane are provided. The ionic sensing electrode comprises a sensing window. The solid electrolyte membrane is disposed on the sensing window. The gas-permeable membrane is disposed on the solid electrolyte membrane. By detecting the change of a reaction voltage as a result of reaction between the ionic sensing electrode and a solution to be measured, the invention is able to determine the pH of the solution to be measured.

Abstract: An electrical connector (1) for electrically connecting an electrical chip to a printed circuit board includes a base (3), a number of contacts, a stiffener (4) partially surrounding the base, a metal clip (5) pivotally assembled to one end of the stiffener, and a lever (6) pivotally assembled to opposite the other end of the stiffener. The base has a number of contact receiving passageways, and includes a mounting surface (314) for arranging the electrical chip and opposite connecting surface (315) for positioning to the printed circuit board. The contacts are received in the contact receiving passageways of the main body. The base defines a plurality of through slots (310) extending from mounting surface to the connecting surface thereof for transferring heat produced by the electrical chip outwardly.

Abstract: A land grid array connector (100) has a stiffener defining a window (305) thereon, a metal clip (40) pivotably coupling with stiffener, a lever (50) engaging on the stiffener, a housing (10) received in the window of the stiffener and a number of contacts mounted to the housing. The lever includes a pair of locating portions (501) and an offset actuating portion (503) disposed between the locating portions. The clip includes a projecting portion (400) having a depress portion (405) for receiving the offset actuating portion of the lever, a protruding portion (406) bending upwardly and inwardly from an end of the depress portion and a pair of guiding portions (4060) extending outwardly from the protruding portion for resisting against opposite ends of the offset actuating portion.

Abstract: A ZIF socket connector comprises a base defining a plurality of passageway therein and each received therein a contact terminal therein. The base defines a first and second end. A cover is moveably attached to the base in a direction from the first end to the second end of the base, and defines a plurality of guiding holes each aligned with the passageway. An actuating lever with a cam portion is disposed in the first end of the housing, and is interengaged with the cover so as to move the cover on the base along the direction. The cover includes a top surface. A pick up cap is disposed on the top surface of the cover, and includes a first end disposed on the top surface of the cover, and a second end interlocked to a sidewall of the base at the second end. The first end of the pickup cap is released when the cover is moved away from the second end of the base.

Abstract: a fastening structure comprises a stiffener including a first end and a second end opposite to the first end. A load plate is pivotally supported on a first end of the stiffener and has a pair of lateral walls. A lever is pivotally mounted on the lateral walls of the load plate and a locking portion to lock the load plate to the stiffener. An LGA socket using the fastening structure comprises an insulative housing having a plurality of contacts. A stiffener includes a first end and a second end and is positioned on a bottom surface of the insulative housing. A load plate is pivotally attached on the first end of the stiffener and has at least a lateral sidewall. A lever is pivotally mounted on the lateral sidewall, the lever and the load plate is being pivotal between an open position and a closed position together, the lever has a transverse locking portion to lock the load plate to the stiffener near the second end of the stiffener.

Abstract: An LGA connector (100) adapted for receiving an electronic package (10), includes a housing (2) and a number of contacts received in the housing, a stiffener (3) enclosing the housing, a cover (5) pivotable between an open position and a closed position, and a lever (4) adapted for retaining the cover. The cover includes a pair of opposite first edges (53) each having a pair of resisting beams (531) extending toward opposite directions and projecting toward the housing. The resisting beams resiliently resist against the electronic package when the cover is rotated to the closed position.

Abstract: Provided herewith a land grid array socket comprises an insulative housing having a plurality of contacts. The insulative housing has a top surface for receiving a land grid array package. A cover member is pivotally mounted on a first end of the insulative housing. The cover member is pivotal between an open position and a closed position where the cover member presses the land grid array package toward the top surface of the insulative housing so that the land grid array package electrically connects to the contacts.

Abstract: A socket connector (1) for connecting an IC package to a printed circuit board includes a base (10) mounting a plurality of conductive terminals therein. A cover (13) assembled on the base (10) and sliding along a first direction relative to the base defines a pair of sidewalls (132, 133) extending downwardly therefrom. An actuating lever (14) drives the cover (13) sliding on the base (10). The sidewalls (132, 133) of the cover (13) are fitly engaging with corresponding sides (111, 112) of the base (10) except a releasing slot (1110, 1120) defined between part portion of the sidewall and the side.

Abstract: An LGA connector (1) includes an housing (2), a stiffener (3) surrounding the housing, a clip (5) pivotably engaged the stiffener, and a lever (4) engaged with the stiffener for pressing the clip. The housing has a supporting portion (21) and a mounting portion (22) having four mating faces surrounding the supporting portion. Each mating face includes at least one spring latch (24) extending outwardly therefrom and a cavity (241) defined on the spring latch for engaging with the stiffener.

Abstract: The present invention provides an anti-ovarian cancer bispecific antibody. Said antibody includes two polypeptide domains connected by a polypeptide linker, one is anti-ovarian cancer antibody, or its Fab fragment, single complementarity determining region (CDR) antibody or single chain Fv (scFv) and the other is anti-CD3 antibody, or its Fab fragment, single CDR antibody or scFv. The present invention also provides DNA sequences encoding said antibody, an expression vector containing said DNA sequence, and a host cell containing said expression vector.

Abstract: A land grid array connector (100) has a stiffener defining a window (305) thereon, a metal clip (40) pivotably coupling with stiffener, a lever (50) engaging on the stiffener, a housing (10) received in the window of the stiffener and a number of contacts mounted to the housing. The lever includes a pair of locating portions (501) and an offset actuating portion (503) disposed between the locating portions. The clip includes a projecting portion (400) having a depress portion (405) for receiving the offset actuating portion of the lever, a protruding portion (406) bending upwardly and inwardly from an end of the depress portion and a pair of guiding portions (4060) extending outwardly from the protruding portion for resisting against opposite ends of the offset actuating portion.

Abstract: An electrical socket comprises an insulative housing including a base with a cover moveably assembled thereon. An actuator is arranged between the base and the cover, and has a lever and a cam device to move the cover from a first position to a second position, wherein an interengaging arrangement is arranged between the lever and the housing, and has guiding means for properly positioning the lever and the cover in the second position easily.

Abstract: An LGA connector (1) includes an housing (2), a stiffener (3) surrounding the housing, a clip (5) pivotably engaged the stiffener, and a lever (4) engaged with the stiffener for pressing the clip. The housing has a supporting portion (21) and a mounting portion (22) having four mating faces surrounding the supporting portion. Each mating face includes at least one spring latch (24) extending outwardly therefrom and a cavity (241) defined on the spring latch for engaging with the stiffener.

Abstract: An electrical connector (1) for electrically connecting an electrical chip to a printed circuit board includes a base (3), a number of contacts, a stiffener (4) partially surrounding the base, a metal clip (5) pivotally assembled to one end of the stiffener, and a lever (6) pivotally assembled to opposite the other end of the stiffener. The base has a number of contact receiving passageways, and includes a mounting surface (314) for arranging the electrical chip and opposite connecting surface (315) for positioning to the printed circuit board. The contacts are received in the contact receiving passageways of the main body. The base defines a plurality of through slots (310) extending from mounting surface to the connecting surface thereof for transferring heat produced by the electrical chip outwardly.

Abstract: A ZIF socket connector comprises a base defining a plurality of passageway therein and each received therein a contact terminal therein. The base defines a first and second end. A cover is moveably attached to the base in a direction from the first end to the second end of the base, and defines a plurality of guiding holes each aligned with the passageway. An actuating lever with a cam portion is disposed in the first end of the housing, and is interengaged with the cover so as to move the cover on the base along the direction. The cover includes a top surface. A pick up cap is disposed on the top surface of the cover, and includes a first end disposed on the top surface of the cover, and a second end interlocked to a sidewall of the base at the second end. The first end of the pickup cap is released when the cover is moved away from the second end of the base.

Abstract: A wireless pH measurement system is disclosed, the wireless pH measurement system includes a portable module and a receiver end. The portable module comprises a signal detecting and processing portion and a wireless transmission portion. The signal detecting and processing portion comprises a sensor unit for detecting a pH signal, amplifying, filtering noise, analog/digital conversion and numerical processing to generate a pH measurement signal. The wireless transmission portion receives the pH measurement signal via a transmission interface and transmits by a Bluetooth module. The receiver end includes a Bluetooth receiver for receiving the pH measurement signal. The receiver end processes the pH measurement signal by programs, displays, analyzes and stores the pH measurement signal and transmits warning signal when an abnormal pH measurement signal is received.