The chip pin adjusting deviceTechnical field
The present invention relates to technical field of semiconductors, particularly a kind of chip pin adjusting device.
Background technology
Adopt the packing forms of the flat encapsulation technology of square (PQFP, Plastic Quad Flat Package) in the extensive or very lagre scale integrated circuit (VLSIC), distance is very little between the chip pin that this technology realizes, pin is very thin, and its number of pins is generally all more than 100.The chip of four side pin flat packaging, pin of chip are drawn from four sides and are gull wings (L) type.Yet the pin of chip of four side pin flat packaging often is bent (about skew or skew) up and down.
The said chip pin of adjustment adopts operating personnel to utilize the adjustment instrument from the rough more and more meticulousr adjustment that is registered in the prior art, adjusts one by one at last, and operation is pulled out pin crooked and distortion with tweezers usually; Carry out the adjustment of tiptoe and heel, smooth foot lever and coplanarity adjustment, however this chip pin method of adjustment wastes time and energy; And break chip pin easily, cause chip unavailable, along with increasing of chip pin; Spacing between the pin is more and more littler; Adjustment work is more and more difficult, and how a kind of chip pin adjusting device of simple and convenient is provided, and has become one of technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of chip pin adjusting device, the easily broken problem of chip pin when avoiding adjusting, and shorten the adjustment time, and reduce labour intensity, improve adjustment efficient.
Technical solution of the present invention is a kind of chip pin adjusting device, comprising:
A base is used to carry the chip that at least one has body and pin;
At least one draw-in groove is positioned at said base upper surface, and the body of said chip is snapped in the said draw-in groove, and said pin of chip strides across said draw-in groove and stretches out;
A plurality of fence are positioned at said base upper surface and are positioned at the said draw-in groove outside, and the space of each fence are used to place said pin of chip.
As preferably: also comprise a hamper, said hamper is hollow form, and buckle closure and will be suppressed said pin of chip to base on said draw-in groove and chip.
As preferably: the sidewall of said hamper is between said draw-in groove and said fence.
As preferably: said fence comprises the interval between a plurality of barrier boards and the adjacent gate breast board.
As preferably: the width of said barrier board is less than or equal to the spacing between said chip two adjacent leads, and the interval between the said barrier board is more than or equal to the width of said pin of chip.
As preferably: the top side wall of said draw-in groove is curved, and the bend that is positioned at said chip pin root strides across draw-in groove and stretches out.
As preferably: the radian of the bend of said chip pin root is the 2-10 degree.
As preferably: the material of said draw-in groove is a metal.
As preferably: the material of said fence is a metal.
Compared with prior art; The present invention adopts chip pin adjusting device simple in structure; Said adjusting device adopt on body and the base of the draw-in groove buckle chip on the base with the corresponding fence of pin of chip with about the pin of skew adjust in the suitable space of fence the easily broken problem of chip pin when effectively avoiding adjusting, and shorten the adjustment time; Reduce labour intensity, improve adjustment efficient; The present invention also adopts a hamper to suppress said chip pin to base, and the chip that squints up and down is adjusted on the same horizontal plane.
Description of drawings
Fig. 1 is the structural representation of the chip pin adjusting device of the specific embodiment of the invention;
Fig. 2 is that the chip of the specific embodiment of the invention is placed on the structural representation in the said chip pin adjusting device;
Fig. 3 is the profile after the hamper of the specific embodiment of the invention is placed;
Fig. 4 is the chip pin partial schematic diagram of the specific embodiment of the invention.
Embodiment
The present invention below will combine accompanying drawing to do further to detail:
A lot of details have been set forth in the following description so that make much of the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention does not receive the restriction of following disclosed practical implementation.
Secondly, the present invention utilizes sketch map to be described in detail, when the embodiment of the invention is detailed; For ease of explanation; The profile of expression device architecture can be disobeyed general ratio and done local the amplification, and said sketch map is instance, and it should not limit the scope of the present invention's protection at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Fig. 1 shows the structural representation of the chip pin adjusting device of one embodiment of the invention.
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the present invention provides a kind of chip pin adjusting device, comprising:
Abase 1 is used to carry the chip that at least one comprises body and pin;
At least one draw-ingroove 2 is positioned at the upper surface ofbase 1, and the material of said draw-in groove is metal, for example stainless steel.Thebody 41 of said chip is snapped in the said draw-ingroove 2; Said pin ofchip 42 strides across said draw-ingroove 2 and stretches out, and as shown in Figure 3, the top side wall of said draw-ingroove 2 is curved; Because draw-ingroove 2 sidewall tops are curved; When the bend of said pin ofchip 42 roots strides across said draw-ingroove 2 sidewall tops, can adjust the root ofchip pin 42 and guarantee it in same plane, the radian A of the bend of said chip pin root is the 2-10 degree;
A plurality offence 3; Be positioned atbase 1 upper surface and be positioned at the outside of said draw-ingroove 2; The material of said fence is a metal; Stainless steel for example, said fence comprises the space 31 between a plurality of barrier boards and the adjacent gate breast board, the space 31 between the said two adjacent gate breast boards is used to place said pin ofchip 42; The width w1 of wherein saidbarrier board 3 is less than or equal to the spacing d1 between said chip two adjacent leads, and the spacing d2 between the said two adjacent gate breast boards is more than or equal to thewidth W 2 of said pin of chip.
Said chip pin adjusting device also comprises a hamper 5, and said hamper is hollow form, and said hamper lower surface matches withbase 1, and buckle closure and will be suppressed said pin ofchip 42 tobase 1 on said draw-ingroove 2 and chip.When hamper 5 was positioned atbase 1 upper surface, the inwall of said hamper 5 was positioned at the outside of said draw-ingroove 2, and the outer wall of said hamper is positioned at the inboard of saidfence 3, and promptly the sidewall of hamper 5 is between draw-ingroove 2 andfence 3.
The use of chip pin adjusting device of the present invention is following:
At first place chip 4 and will wait to adjust the draw-ingroove 2 that thebody 41 of the chip of pin is put intobase 1 upper surface; Pin ofchip 42 extends outwardly intofence 3 places; Pin ofchip 42 is arranged in the space 31 of two adjacent gate breast boards; Because draw-in groove sidewall top is curved, when the bend of said pin of chip root strides across said draw-in groove sidewall top, can adjust the root ofchip pin 42 and guarantee that it is in same plane;
And then whether each pin of observing chip all be arranged in the space 31 of two adjacent gate breast boards, and the pin of chip that squints about adjustment all is arranged in the space 31 of two adjacent gate breast boards until each pin, and the spacing d1 between the adjacent leads is consistent;
And then hamper 5 is placed on thebase 1; Because the inwall of said hamper 5 is positioned at the outside of said draw-ingroove 2; The outer wall of said hamper 5 is positioned at the inboard of saidfence 3; All pin ofchip 42 all are compressed onbase 1 upper surface by hamper 5, thereby have adjusted the pin of chip of skew up and down, make said pin of chip on same horizontal plane; Take away hamper 5 after adjustment finishes, take out chip 4.
In sum; The present invention adopts chip pin adjusting device simple in structure; Said adjusting device adopt on draw-in groove buckle chip body and the base on the base with the corresponding fence of chip pin with about the pin of skew adjust in the suitable space of fence the easily broken problem of chip pin when effectively avoiding adjusting, and shorten the adjustment time; Reduce labour intensity, improve adjustment efficient; The present invention also adopts a hamper to suppress the chip that said chip pin will squint up and down to the base and is adjusted on the same horizontal plane.
The above is merely preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.