KR200343280Y1 - Ic socket - Google Patents

Abstract

The present invention relates to an IC socket (socket) configured to be removable to the fixed body fixed to the printed circuit board (PCB) that can be moved by inserting the IC element.

According to the present invention, an IC socket for mounting an IC device on a printed circuit board (PCB) includes a plurality of second contact pins partially exposed at a lower end thereof, and a lower end of the second contact pin is soldered to the PCB to form a PCB. And a plurality of first contact pins fixed to the body and a plurality of first contact pins contacting the pins of the IC device into which the IC device is inserted and corresponding to the first contact pins respectively corresponding to the second contact pins of the fixed body. It is made of a configuration including a movable body detachable to the fixed body to be in contact with, so that even if the contact portion wears out by frequent contact with the IC element, it is not necessary to replace the entire IC socket, significantly damage the PCB due to replacement of the IC socket Can be reduced, and the effect of reducing the cost and improving the inspection efficiency can be achieved.

Description

IC SOCKET {IC SOCKET}

The present invention relates to an IC socket, and more particularly, to an IC socket configured to be detachable from a fixed body fixed to a printed circuit board (PCB) by a movable body which can be moved by inserting an IC element. It is about.

In general, after fabricating a semiconductor integrated circuit device (hereinafter referred to as an IC (Intergrated Circuit) device), the inspection is carried out in a final package state, which is manufactured by inserting the manufactured IC device into an inspection socket and using a computer. The program checks the electrical and functional characteristics of IC devices in a short time, and distinguishes whether the product is good or bad.

For this inspection, a test socket for inserting an IC device under test must be prepared, and the test socket must have the same pinout and dimensions as the IC device under test.

There are several types of IC devices. One of the most common and traditional forms is a dual in-line package (DIP) type package. A DIP package is a type in which pins (ie terminals) connected to a chip are arranged side by side on both sides of a rectangular plastic or ceramic package. In order to inspect a DIP type IC device, as described above, the pin arrangement of the IC device to be inspected is DIP type sockets complying with the standards and specifications shall be used.

An example of a conventional socket for a DIP type IC device is shown in FIG. It is manufactured by embedding, the upper part of the contact pin 12 in the "U" shape is open on the upper surface to be electrically connected to the pin of the IC element to be inserted, the contact pin connected to the "U" shape ( The lower end of 12 is exposed out of the socket body 11. In order to use such a socket for inspection, the end of the contact pin 12 protruding below the socket body 11 should be fixed to the printed circuit board (PCB) of the inspection equipment by soldering. Proceed after inserting into the socket. In other words, the IC element is inserted into the socket, the predetermined inspection is carried out and then taken out. Then, the new IC element is mounted again and the continuous inspection is performed.

Therefore, when the IC element is inserted into or removed from the socket many times, the socket part in contact with the IC element is worn out. When replacing the worn socket, the solder is removed from the PCB at each end of the contact pin 12 to replace the worn socket. Since the copper foil of the PCB is likely to be damaged, the inspection equipment may be defective.

Furthermore, since only a part of the damaged contact pins 12 cannot be replaced, there is a disadvantage in terms of cost reduction, such as the need to replace the entire socket.

The present invention has been devised in view of the above-mentioned matters, and the movable body which can be moved by inserting the IC element is fixed to the PCB so that the entire IC socket is not replaced even if the contact part is worn out due to frequent contact with the IC element. An object of the present invention is to provide an IC socket configured to be detachable from a fixed body.

The present invention for achieving the above object is, in the IC socket for mounting the IC element on a printed circuit board (PCB), a plurality of second contact pins partially exposed at the lower end is embedded so that the lower end of the second contact pin A fixed body fixed to the PCB by soldering to the PCB, and a plurality of first contact pins are inserted into the IC contact with the pins of the IC device inserted and inserted into the second contact pins of the fixed body. It provides an IC socket comprising a movable body detachable to the fixed body so that the first contact pins respectively correspond to each other.

The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a view of a conventional DIP type IC socket,

2 is a schematic cross-sectional view illustrating a DIP type IC socket according to the present invention.

<Description of the symbols for the main parts of the drawings>

11 socket body 12 contact pin

20: movable body 22: insertion portion

24: engaging projection 26: the first contact pin

28: first contact terminal 30: fixed body

32: mounting portion 34: coupling groove

36: second contact pin 38: second contact terminal

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic cross-sectional view illustrating a DIP type IC socket according to a preferred embodiment of the present invention.

The IC socket according to the present invention is divided into two parts, a movable body 20 which can be moved by inserting an IC element, and a fixed body 30 fixed to a printed circuit board (PCB).

The movable body 20 has an insertion portion 22 into which an IC element is inserted on an upper surface thereof, and a plurality of first contact pins 26 so that pins and upper ends of the IC element inserted into the insertion portion 22 are connected. The first contact terminal 28 connected to the lower end of the buried first contact pin 26 is exposed on the lower surface thereof, and the first contact terminal 28 has an appropriate area.

Then, the movable body 20 is integrally formed with a coupling protrusion 24 corresponding to both sides to prevent the falling off after the coupling to the fixed body 30 and the coupling.

On the other hand, the fixed body 30, the lower side is fixed on the PCB, the mounting portion 32 is recessed to the bottom while the upper portion is opened in the middle portion so as to correspond to the shape of the movable body 20 detachably coupled In the mounting portion 32, coupling grooves 34 into which the coupling protrusions 24 of the movable body 10 are fitted are formed at both sides.

When the movable body 20 is coupled, an appropriate area is provided on the inner bottom surface of the corresponding fixed body 30 mounting portion 32 so as to be in contact with the first contact terminal 28 exposed on the lower surface of the movable body 20. The second contact terminal 38 having an exposed portion is exposed, a plurality of second contact pins 36 connected to the second contact terminal 38 at an upper end thereof are embedded in the fixing body 30 in a vertical direction, and the second contact pins ( The lower end of 36) protrudes a predetermined length from the lower surface of the fixing body 30 so that its end can be fixed to the PCB by soldering.

In addition, the movable body 20 is slide-fitted into the mounting portion 32 of the fixed body 30 from the side, for this purpose, the second contact terminal 38 located on the inner bottom of the mounting portion 32 for this purpose. ) May be suitably provided so as not to interfere with the movable body 20 to be fitted. For example, only one side is fixed on the bottom surface and the other side is inclined so as to be positioned in the space, and is inserted by the movable body 20 from the side. The other side is pressed while being horizontal, and when the movable body 20 is pulled out, the other side can be configured to rise in space again.

The operation of the present invention having the above configuration will be described below.

First, the exposed lower end of the second contact pin 36 of the fixed body 30 is soldered onto the PCB of the inspection equipment to fix the fixed body 30 on the PCB.

On the other hand, the IC element of the inspection object is inserted into the upper surface insertion part 22 of the movable body 20 regardless of the place and the like, so that the pin of the IC element and the upper end of the first contact pin 26 of the movable body 20 are inserted. The IC element is inserted into the movable body 20 to be in contact and electrically connected.

Next, the movable body 20 into which the IC element is inserted is moved, and the movable body 20 is inserted into the fixed body 30 by being inserted from the side to the mounting portion 32 of the fixed body 30 that is fixed on the PCB in advance. And a first contact terminal 28 connected to the first contact pin 26 on the bottom surface of the movable body 20 and a second contact pin 36 on the bottom of the mounting body 32 according to the coupling. The second contact terminals 38 are in contact with each other to be electrically connected, and in this state, the IC device can be inspected.

At this time, both coupling protrusions 24 of the movable body 20 are fitted into both coupling grooves 34 of the fixed body 30 to prevent some of the movable body 20 from falling off from the fixed body 30. Let's do it.

Subsequently, to remove the IC element after the inspection is completed, the movable body 20 is pushed laterally with respect to the fixed body 30 to be separated from the fixed body 30, and then the IC element is separated from the separated movable body 20. Just do it.

In this way, a plurality of IC elements can be replaced and inspected. If the movable body 20 is inserted or damaged due to frequent replacement of the IC elements, only the movable body 20 needs to be replaced. , The fixed body 30 can be used continuously in a fixed state on the PCB.

As described above, the above description merely illustrates a preferred embodiment of the present invention, and those skilled in the art should recognize that modifications and changes can be made to the present invention without changing the subject matter of the present invention.

According to the present invention, the entire IC socket does not need to be replaced even if the contact is worn out due to frequent contact with the IC element, thereby greatly reducing the damage of the PCB due to the replacement of the IC socket, thereby improving cost reduction and inspection efficiency. It works.

Claims (3)

In the IC socket for mounting the IC element on a printed circuit board (PCB), A fixed body fixed to the PCB by embedding a plurality of second contact pins partially exposed at a lower end thereof and soldering the lower end of the second contact pins to the PCB; A plurality of first contact pins are inserted into the IC element and in contact with the pins of the inserted IC element, so that the first contact pins correspond to the second contact pins of the fixed body to correspond to each other. IC socket including a removable body detachable. The method of claim 1, The movable body, An inserting portion provided on an upper surface to insert the IC element; A first contact terminal connected to a lower end of the first contact pin and exposed on a lower surface thereof; IC socket, characterized in that it comprises a coupling protrusion protruding on both sides to prevent falling off after coupling to the fixed body. The method according to claim 1 or 2, The fixed body, A mounting portion corresponding to the shape of the movable body and recessed downwardly while being opened at an intermediate portion so as to have a coupling groove into which the coupling protrusion of the movable body is fitted on both sides thereof, the movable body being slidably inserted from the side; And a second contact terminal connected to an upper end of the second contact pin to be in contact with the first contact terminal in a coupled state with the movable body and exposed on an inner bottom surface of the mounting portion.