CN112397921A

CN112397921A - CPU socket connector

Info

Publication number: CN112397921A
Application number: CN202010798916.1A
Authority: CN
Inventors: 郑善雍; 陈昭杰; 司明伦
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2019-08-13
Filing date: 2020-08-11
Publication date: 2021-02-23
Also published as: TWI749695B; TW202121754A

Abstract

A CPU socket connector comprises an insulating body and a plurality of conductive terminals arranged on the insulating body; the conductive terminals comprise a plurality of first terminals with a first distance and a plurality of second terminals with a second distance, the first distance and the second distance are different, and the conductive terminals are arranged in at least two different distances, so that the layout of the conductive terminals is more reasonable and balanced.

Description

CPU socket connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to a CPU socket connector, and more particularly, to a CPU socket connector capable of mating with a CPU chip.

[ background of the invention ]

A conventional CPU socket connector has a plurality of conductive terminals arranged in a matrix form, the conductive terminals have contact portions for mating with a CPU chip, and the conductive terminals generally have the same pitch therebetween. Referring to the arrangement of the conductive terminals 1 of the CPU socket connector of the first prior art shown in fig. 1 and 2, the conductive terminals 1 are arranged in a regular matrix, the conductive terminals 1 are disposed in two regions A, B separated from each other, the conductive terminals 1 in each region A, B are arranged in a plurality of rows along the transverse direction X and in a plurality of columns along the longitudinal direction Y, and the distance S between each two adjacent conductive terminals 1 is 0.8 mm. Referring to the arrangement of the conductive terminals 1 'of the CPU socket connector of the second prior art shown in fig. 3 and 4, the conductive terminals 1' are disposed in two regions C, D separated from each other in the front and back, unlike the first prior art, the conductive terminals 1 'in each region C, D are arranged in an irregular matrix, specifically, the conductive terminals 1' in each region C, D are arranged in a plurality of rows along the longitudinal direction Y, each conductive terminal 1 'and the adjacent conductive terminal 1' in the adjacent row are staggered from each other along the transverse and longitudinal directions, and each conductive terminal 1 'is located between the two adjacent conductive terminals 1' in the adjacent row as viewed from the transverse direction X. The conductive terminals 1 'of the second prior art are arranged in a regular hexagonal matrix, specifically, the six conductive terminals 1' around the conductive terminal 1 'are located at six vertices of the regular hexagon H, and the conductive terminal 1' is located at the center of the enclosed hexagon H, and in the second prior art, the distance S 'between every two adjacent conductive terminals 1' in each area C, D is 0.9 mm.

However, the conductive terminals 1 and 1' in the first and second prior art can be arranged only in a single pitch manner, so that the conductive terminals can be in fit contact only in one manner when being in butt-joint fit with the CPU chip, and the contact portions 10 and 10' of the conductive terminals 1 and 1' distributed in the two regions can only extend in opposite directions to achieve the effect of force balance when the CPU chip is pressed and connected.

Therefore, there is a need to provide an improved CPU socket connector to solve the above problems.

[ summary of the invention ]

The invention mainly aims to provide a CPU socket connector adopting a mixed pitch arrangement mode.

In order to achieve the purpose, the invention adopts the following technical scheme: a CPU socket connector comprises an insulating body and a plurality of conductive terminals arranged on the insulating body; the conductive terminal comprises a plurality of first terminals with a first pitch and a plurality of second terminals with a second pitch, and the first pitch and the second pitch are different.

Furthermore, the first terminal is arranged at the central position of the insulating body and is provided with a first contact part which protrudes upwards out of the insulating body; the second terminal is arranged at an outer position of the insulating body and surrounds the periphery of the first terminal, and the second terminal is provided with a second contact part which protrudes upwards out of the insulating body.

Further, the first terminals are arranged in a first matrix, and the second terminals are arranged in a second matrix different from the first matrix.

Furthermore, the first terminals are arranged in a plurality of rows along the transverse direction and in a plurality of columns along the longitudinal direction, and a first space is formed between every two adjacent first terminals in each row and each column.

Furthermore, the second terminals are arranged in a plurality of rows along the longitudinal direction, and a second space is formed between every two adjacent second terminals in each row; each second terminal and the adjacent second terminal in the adjacent column are staggered with each other along the transverse direction and the longitudinal direction at the same time, and an equilateral triangle is formed between each second terminal and the adjacent two second terminals in the adjacent column.

Further, the first terminals are arranged in two separated first regions, and the first contact portions of the first terminals located in the two first regions are formed to extend toward each other.

Further, the second terminals are arranged in two separate second regions, and second contact portions of the second terminals located in the two second regions are formed so as to extend toward each other.

Furthermore, the extending direction of the second contact part and the extending direction of the first contact part are all perpendicular to each other.

Furthermore, the first terminals are continuously arranged in the same region, and the second terminals are continuously arranged in another region around the periphery of the first terminals; the first contact portions of all the first terminals extend along the same direction, and the second contact portions of all the second terminals extend opposite to the first contact portions.

Furthermore, the first terminals are continuously arranged in the same region, the second terminals surround the periphery of the first terminals and are arranged in two separated and different peripheral regions, the second contact part in one peripheral region and all the first contact parts extend along the same direction, and the second contact part in the other peripheral region and the first contact parts extend oppositely to form.

Compared with the prior art, the conductive terminals are arranged in at least two different intervals, so that the layout of the conductive terminals is more reasonable and balanced.

[ description of the drawings ]

Fig. 1 is a schematic diagram of a first prior art CPU socket connector.

Fig. 2 is a partially enlarged schematic view of a dotted line portion in fig. 1.

Fig. 3 is a schematic diagram of a second prior art CPU socket connector.

Fig. 4 is a partially enlarged schematic view of a dotted line portion in fig. 3.

Fig. 5 is a schematic diagram of a CPU socket connector according to a first embodiment of the present invention.

Fig. 6 is a partially enlarged schematic view of a dotted line portion in fig. 5.

Fig. 7 is a schematic diagram of a CPU socket connector according to a second embodiment of the present invention.

Fig. 8 is a partially enlarged schematic view of a dotted line portion in fig. 7.

Fig. 9 is a schematic diagram of a CPU socket connector according to a third embodiment of the present invention.

Fig. 10 is a partially enlarged schematic view of a dotted line portion at the upper right corner of fig. 9.

Fig. 11 is a partially enlarged schematic view of another dotted and dashed line portion in fig. 9.

[ description of main element symbols ]

Conductive terminals 1, 1 'contact parts 10, 10'

Region A, B, C, D Pitch S, S'

First areas

101, 102 of

CPU socket connectors

100, 100', 100 ″

Second regions

103, 104 are hexagons H, 105

Insulating body 120 terminal groove 130

First terminals

140, 140', 140 "

first contact portions

142, 142', 142"

First holding portion 143

second terminal

150, 150', 150 "

Second contact portion 152, 152' second holding portion 153

Transverse direction X longitudinal direction Y

First spacing S1 second spacing S2

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

Referring to fig. 5-6, a CPU (Central Processing Unit) socket connector 100 according to a first embodiment of the present invention is shown, wherein the CPU socket connector 100 is configured to be mounted on a circuit board (not shown) and mated with a CPU chip (not shown) to achieve electrical connection. The CPU socket connector 100 includes an insulating body 120 and a plurality of conductive terminals disposed on the insulating body 120 for mating with the CPU chip module. The insulating body 120 is provided with a plurality of terminal slots 130 vertically penetrating along the height direction for accommodating and mounting the conductive terminals.

The conductive terminals include a plurality of first terminals 140 arranged in a first matrix and a plurality of second terminals 150 arranged in a second matrix. The first terminals 140 are arranged in a regular first matrix at a central position of the insulating body 120, and are disposed in two separated

first regions

101 and 102 spaced apart from each other at right and left, and the two

first regions

101 and 102 are both arranged in a rectangular shape and are partially staggered in the longitudinal direction Y. The first terminals 140 in each

first region

101, 102 are arranged in rows along the transverse direction X and in columns along the longitudinal direction Y, that is, every two adjacent first terminals 140 in each

first region

101, 102 are aligned with each other along the transverse direction X and the vertical direction Y, and the first spacing S1 between two adjacent first terminals 140 in each

first region

101, 102 is 0.8mm, that is, the first spacing S1 between two adjacent first terminals 140 in each row or each column is 0.8mm, where the first spacing S1 refers to the distance between the centers of two adjacent first terminals 140. The first terminal 140 has a first contact portion 142 protruding upward from the insulating housing 120, a first holding portion 143 fixed in the terminal groove 130 of the insulating housing 120, and a first mounting portion (not numbered) extending downward from the insulating housing 120 for mounting to a circuit board, wherein the first contact portion 142 extends obliquely. The first contact portions 142 of the first terminals 140 in the two

first regions

101, 102 extend toward each other, that is, the extending directions of the first contact portions 142 in the two

first regions

101, 102 are parallel to a straight line and are disposed facing each other, in this embodiment, the first contact portion 142 in the left first region 101 extends toward the right rear with an angle of 45 degrees, and the first contact portion 142 in the right first region 102 extends toward the left front with an angle of 45 degrees, which can counteract the reaction force of the first contact portions 142 in the two

first regions

101, 102 when they are mated with the CPU chip, so as to achieve the effect of force balance.

The second terminals 150 are arranged at an outer position of the insulating body 120 and around the periphery of the first terminals 140, the second terminals 150 are arranged in two separated

second regions

103 and 104 spaced back and forth, the two

second regions

103 and 104 are approximately in a U-shaped configuration with openings facing each other, and the two

second regions

103 and 104 are partially offset in the transverse direction X. Different from the arrangement of the first terminals 140, the second terminals 150 in each

second region

103, 104 are arranged in an irregular second matrix, specifically, the second terminals 150 in each

second region

103, 104 are arranged in a plurality of rows along the longitudinal direction Y, each second terminal 150 is staggered from the adjacent second terminal 150 in the adjacent row along the transverse and longitudinal directions, when viewed from the transverse direction X, each second terminal 150 is located between two adjacent second terminals 150 in the adjacent row, and each second terminal 150 forms an equilateral triangle with two adjacent second terminals 150 in the adjacent row. Further, in the present embodiment, the second terminals 150 are arranged in a hexagonal matrix, specifically, in each of the

second regions

103, 104, the six surrounding second terminals 150 adjacent to any one second terminal 150 are located at six vertices of the regular hexagon 105, the any one second terminal 150 is located at a center position of the surrounded hexagon 105, and the second spacing S2 between any two adjacent second terminals 150 in each

second region

103, 104 is 0.9mm, so that the second spacing S2 between two adjacent second terminals 150 is greater than the second spacing 140 between two adjacent first terminals 140. The second terminal 150 has a second contact portion 152 protruding upward from the insulative housing 120, a second holding portion 153 fixed in the terminal slot 130 of the insulative housing 120, and a second mounting portion (not numbered) extending downward from the insulative housing 120 for mounting to a circuit board, and the second contact portion 142 extends obliquely upward. The second contact portions 152 of the second terminals 150 located in the two

second regions

103, 104 are also formed to extend toward each other, that is, the extending directions of the second contact portions 152 in the two

second regions

103, 104 are parallel to the same straight line and are arranged facing each other, and this configuration can also counteract the reaction force of the second contact portions 152 in the two

second regions

103, 104 when they are mated with the CPU chip, so as to achieve the effect of force balance. In this embodiment, the second contact portion 152 in the front second region 103 extends in a direction inclined at an angle of 45 degrees to the left rear, and the second contact portion 152 in the rear second region 103 extends in a direction inclined at an angle of 45 degrees to the right front, so that the extending direction of the second contact portion 152 and the extending direction of the first contact portion 151 are perpendicular to each other.

In this embodiment, the first pitch S1 between two adjacent first terminals 140 in each row or each column of the first terminals 140 is 0.8mm, and the second pitch S2 between any two adjacent second terminals 150 in the second terminals 150 is 0.9mm, so all the pitches of the first terminals 140 are the first pitch S1, and all the pitches of the second terminals 150 are the second pitch S2. In other embodiments, the first pitch S1 may refer to only the pitch formed between two adjacent first terminals 140 in each row of the first terminals 140, and the second pitch S2 refers to only the pitch formed between two adjacent second terminals 150 in each row of the second terminals 150; alternatively, the first pitch S1 may be only the pitch formed between two adjacently disposed first terminals 140 in each row of the first terminals 140, and the second pitch S2 is only the pitch formed between two adjacently disposed second terminals 150 in each row of the second terminals 150; as long as the first spacing S1 and the second spacing S2 are spacings formed between two adjacent terminals with respect to the same position in the first and

second terminals

140 and 150.

In the present invention, the first terminals 140 arranged to form the first matrix are disposed in the

first regions

101, 102 at the central position, and the second terminals 150 arranged to form the second matrix are disposed in the

second regions

103, 104 surrounding the first terminals 140, because the first spacing S1 between the terminals formed by the first terminals 140 is smaller and the arrangement density is larger, and the second spacing S2 between the terminals formed by the second terminals 150 is larger and the arrangement density is smaller, when the conductive terminals are mated with the CPU chip, the bearing capacity of the central region is larger, and the bearing capacity of the peripheral region is smaller. In this embodiment, the first terminal 140 and the second terminal 150 may be terminals of different transmission types, for example, the first terminal 140 is a power supply terminal, and the second terminal 150 is a signal terminal for transmitting signals. And the first terminal 140 and the second terminal 150 may have different structures, such as a width or a thickness of the first terminal 140 transmitting power is larger than that of the second terminal 150 transmitting a signal.

Referring to fig. 7-8, a CPU socket connector 100' according to a second embodiment of the present invention is shown, unlike the first embodiment, the first terminals 140' of the CPU socket connector 100' of the second embodiment are continuously disposed only in the same region of the center of the insulative housing 120', the second terminals 150 'are continuously arranged at an outer position of the insulative housing 120' and surround the periphery of the first terminals 140', the first contact portions 142' of all the first terminals 140 'extend in the same direction, the second contact portions 152' of all the second terminals 150 'extend in a direction opposite to the first contact portions 142', i.e., all of the first contact portions 142 'and the second contact portions 152' face each other, in this embodiment, all the first contact portions 142' extend obliquely toward the right front 45 degree angle direction, and all the second contact portions extend obliquely toward the left lower 45 degree angle direction. The conductive terminal structure makes the CPU socket connector 100' easy to assemble, and can reduce the manufacturing cost.

Referring to fig. 9-10, a CPU socket connector 100 "according to a third embodiment of the present invention is similar to the second embodiment in that the first terminals 140" of the CPU socket connector 100 "of the third embodiment are continuously disposed only in the same region of the center of the insulating body 120", and the difference is that the second terminals 150 "are disposed at the outer position of the insulating body 120" and around the periphery of the first terminals 140 "and are disposed in two separate and different peripheral regions, one of which is L-shaped and the other of which is C-shaped. And the second contact portions 152 "in the L-shaped peripheral region and all the first contact portions 142" extend in the same direction, and the second contact portions 152 "in the C-shaped peripheral region and all the first contact portions 142" extend in the opposite direction, in this embodiment, the second contact portions 152 "in the L-shaped peripheral region and all the first contact portions 142" extend obliquely toward the front 45 degree angle on the right, and the second contact portions in the C-shaped region extend obliquely toward the rear 45 degree angle on the left. Compared with the second embodiment, the conductive terminal arrangement structure makes the stress of the CPU socket connector 100 ″ and the CPU chip more balanced when the CPU socket connector is mated with the CPU chip.

The above are merely three preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. The invention mainly relates to a CPU socket connector which adopts conductive terminals with different spacing arrangement modes, so that the layout of the conductive terminals is more reasonable and balanced, and the contact parts of the conductive terminals adopt different or opposite extension directions in different areas, thereby achieving the effect of more balanced stress when in butt joint and matching with a CPU chip. In addition, because the conductive terminals adopt different arrangement modes in different areas, the problem that the conductive terminals with different distances are better positioned by adopting the mold top in the process of manufacturing and assembling the CPU socket connector needs to be solved, and the mutual interference among the mold ejector pins is prevented. The conductive terminals of the first embodiment of the invention adopt an arrangement mode of four regions, the conductive terminals of the second embodiment adopt an arrangement mode of two regions, and the conductive terminals of the third embodiment adopt an arrangement mode of three regions.

It can be understood that the main feature of the present invention is to adopt two mixed pitch arrangements of different pitches for the conductive terminals, which can be applied to all existing CPU socket connectors, and is especially suitable for the situation where the number of the conductive terminals is large, such as the CPU socket connector structures disclosed in U.S. published or published patent numbers US6957987, US7429200, US7927121, US8454373, US8979565, US8998623, US9466900, US20190089098, US20190221956, etc., and the CPU socket connectors disclosed in chinese published or published patent numbers CN107086401A, CN205863524U, CN205944491U, CN206685589U, CN207282768U, etc. That is, the feature of the mixed pitch arrangement of the conductive terminals of the present invention is obviously applicable to the CPU socket connector structure to replace the existing single pitch arrangement of the conductive terminals.

From another perspective, the existing CPU socket connector is obviously not patentable if the feature of the mixed pitch arrangement of the conductive terminals of the present invention is combined after the present invention is applied, even though the present invention does not describe in detail the peripheral architectures such as the carrier board (load board) for pressing the CPU chip, the stiffener (stiff) for surrounding the insulating body, the cover (cover) for preventing dust, the carrier (carrier) for loading the CPU chip, the heat sink (heat sink) for mounting the CPU chip, and the Printed Circuit Board (PCB) for mounting the CPU socket connector, it is obvious that such architectures can be directly applied in the present invention, and thus such architectures can be regarded as a part of the application and implementation of the present invention.

Although the specification and drawings do not describe or show the complete structure of the conductive terminal individually in detail, in the present invention, the conductive terminal may adopt an LGA/BGA structure, that is, the contact portion of the conductive terminal adopts a Land Grid Array (LGA) mode, and the mounting portion adopts a Ball Grid Array (BGA) mode; alternatively, an LGA/LGA structure may be employed, in which both the contact portion and the mounting portion of the conductive terminal are formed by Land Grid Array (LGA). For LGA/BGA structure of conductive terminal, it is referred to the conductive terminal structure disclosed in U.S. Pat. nos. US7563107, US7909617, US8454373, etc. the holding portion of the conductive terminal of the present invention may include a pair of connectors with a certain included angle, the contact portion and the mounting portion respectively extend upward and downward from the corresponding connectors, and the mounting portion is mounted on the printed circuit board by means of solder balls. In conclusion, all simple equivalent changes and modifications made according to the claims and the contents of the present specification should still fall within the scope of the present patent.

Claims

1. A CPU socket connector comprises an insulating body and a plurality of conductive terminals arranged on the insulating body; the method is characterized in that: the conductive terminal comprises a plurality of first terminals with a first pitch and a plurality of second terminals with a second pitch, and the first pitch and the second pitch are different.

2. The CPU socket connector of claim 1, wherein: the first terminals are arranged at the central position of the insulating body and are provided with first contact parts which protrude upwards out of the insulating body; the second terminal is arranged at an outer position of the insulating body and surrounds the periphery of the first terminal, and the second terminal is provided with a second contact part which protrudes upwards out of the insulating body.

3. The CPU socket connector of claim 2, wherein: the first terminals are arranged in a first matrix and the second terminals are arranged in a second matrix different from the first matrix.

4. The CPU socket connector of claim 3, wherein: the first terminals are arranged in a plurality of rows along the transverse direction and in a plurality of columns along the longitudinal direction, and the first space is formed between every two adjacent first terminals in every row and every column.

5. The CPU socket connector of claim 3, wherein: the second terminals are arranged in a plurality of rows along the longitudinal direction, and the second distance is formed between every two adjacent second terminals in each row; each second terminal and the adjacent second terminal in the adjacent column are staggered with each other along the transverse direction and the longitudinal direction at the same time, and an equilateral triangle is formed between each second terminal and the adjacent two second terminals in the adjacent column.

6. The CPU socket connector of claim 2, wherein: the first terminals are arranged in two separated first regions, and first contact portions of the first terminals located in the two first regions are formed so as to extend toward each other.

7. The CPU socket connector of claim 6, wherein: the second terminals are arranged in two separate second regions, and second contact portions of the second terminals located in the two second regions are formed so as to extend toward each other.

8. The CPU socket connector of claim 7, wherein: the extending direction of the second contact part is perpendicular to the extending direction of the first contact part.

9. The CPU socket connector of claim 2, wherein: the first terminals are continuously arranged in the same area, and the second terminals are continuously arranged in another area around the periphery of the first terminals; the first contact portions of all the first terminals extend along the same direction, and the second contact portions of all the second terminals extend opposite to the first contact portions.

10. The CPU socket connector of claim 2, wherein: the first terminals are continuously arranged in the same region, the second terminals surround the periphery of the first terminals and are arranged in two separated and different peripheral regions, the second contact part in one peripheral region and all the first contact parts extend along the same direction, and the second contact part in the other peripheral region and the first contact parts extend oppositely to form the second contact part.