CN201655776U

CN201655776U - Sucker mold for rectifier crystal grain production

Info

Publication number: CN201655776U
Application number: CN2010201511961U
Authority: CN
Inventors: 陈鉴章
Original assignee: GOOD ELECTRONIC (WUHU) CO Ltd
Current assignee: GOOD ELECTRONIC (WUHU) CO Ltd
Priority date: 2010-03-31
Filing date: 2010-03-31
Publication date: 2010-11-24
Anticipated expiration: 2020-03-31

Abstract

The utility model discloses a sucker mold for rectifier crystal grain production, which comprises an upper mold and a lower mold. The upper mold and the lower mold are detachably connected together to form a hollow cavity capable of being vacuumized, a groove is arranged on the upper surface of the upper mold, a plurality of regularly hexagonal counter bores arranged on the bottom surface of the groove are tightly arranged in a honeycomb shape, and each counter bore is communicated with the hollow cavity. By adopting the structure, the sucker mold has the advantages that 1 the sucker mold can be used in a production method of regularly hexagonal rectifier crystal grains, lead regularly hexagonal baffle plates to be in honeycomb-shaped tight arrangement, be adjusted in width and adhered with an adhesive tape, be used for adhering the baffle plates with a chip, and facilitate production of the regularly hexagonal crystal grains; 2 vacuum pumping of the hollow cavity can lead the baffle plates to be closely attached into the counter bores and facilitate adhering the adhesive tape; and 3 the sucker mold is simple in structure and convenient in utilization.

Description

A kind of production rectifier grain suction cup mould

Technical field

The utility model relates to the rectifier grain technical field, particularly a kind of production rectifier grain suction cup mould.

Background technology

At present, the crystal grain profile of rectifier employing is square usually.Square crystal grain long-pending utilance on same welding table top is less, and when required forward current was definite value, area caused resistance value bigger for a short time, and forward dc voltage is bigger, and the device heating amount is big, the product poor durability; Surge forward current is less, and product is anti-relatively poor towards ability; Because the angle of square crystal grain is 90 °, the point discharge effect is big, causes the reverse withstand voltage properties of product poor simultaneously; Easily expose and breakage the corner of square crystal grain when rectifier welds.Needing a kind of rectifier grain that can reach the shape of better performance at present, the mould of this shape crystal grain is provided, is the problem that prior art need solve.

The utility model content

Technical problem to be solved in the utility model is, at the deficiencies in the prior art, provides a kind of production rectifier grain suction cup mould, to reach the purpose of technology of production that this mould is used for improving the regular hexagon crystal grain of performance.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of production rectifier grain suction cup mould, comprise upper die and lower die, described patrix and counterdie are to be detachably connected to form the cavity that can be evacuated, the upper surface of described patrix is provided with groove, the bottom surface of described groove is provided with a plurality of cellular compact arranged regular hexagon counterbores that are, and described each counterbore all is connected with described cavity.

Described mould is provided with a ventilation mouth that is connected with described cavity, and described ventilation mouth is connected with vacuum pump.

The periphery of described patrix extends flange downwards and forms an opening, and described counterdie is provided with the projection that matches with described opening.

Described patrix is connected locking with counterdie by bolt.

Described groove is rounded.

The utility model adopts said structure, have the following advantages: 1, can be used in the production method of rectifier grain of regular hexagon, can make the regular hexagon catch be cellular tight arrangement, and view picture sticks adhesive tape, be used for catch and chip adhesion are made things convenient for the production of regular hexagon crystal grain; 2, vacuumizing of cavity can make catch be close in the counterbore, conveniently tapes; 3, the utility model is simple in structure, the convenient use.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1 in the utility model;

In Fig. 1～Fig. 2,1, patrix; 2, counterdie; 3, cavity; 4, groove; 5, counterbore; 6, ventilation mouth; 7, vacuum pump; 8, projection; 9, bolt.

Embodiment

As Fig. 1～a kind of production rectifier grain suction cup mould shown in Figure 2, comprise patrix 1 and counterdie 2, patrix 1 forms the cavity that can be evacuated 3 with counterdie 2 for being detachably connected, and the upper surface of patrix 1 is provided with groove 4, and groove 4 is rounded.The bottom surface of groove 4 is provided with a plurality of cellular compact arranged regular hexagon counterbores 5 that are, and each counterbore 5 all is connected with cavity 3.Mould is provided with a ventilation mouth 6 that is connected with cavity 3, and ventilation mouth 6 is connected with vacuum pump 7.The periphery of patrix 1 extends flange downwards and forms an opening, and counterdie 2 is provided with the projection 8 that matches with opening, and patrix 1 is connected locking with counterdie 2 by bolt 9, and this structure makes that patrix 1 and counterdie 2 are detachable.This mould adopts wear-resisting alloy material to make.

The production method step of regular hexagon crystal grain comprises:

A) will spread photoresist on the good silicon earlier, the MASK film is drawn a plurality of graph line that are cellular compact arranged regular hexagon, again the post-exposure of MASK film is pasted on the two sides of silicon respectively, and, then make the GPP chip with the one side of silicon graph line open channels according to the MASK film;

B) upper glass plate: the Chinese wax of chip after by preheating is sticked on the sheet glass;

C) chip is waxed: the reverse side of chip and sheet glass adhesion face is coated Chinese wax;

D) arrange catch: will put into this suction cup mould with the regular hexagon catch of the crystal grain same model of needs production, will put into suction cup mould, and make catch all fall into each counterbore 5 of suction cup mould with the regular hexagon catch of the crystal grain same model of needs production.The shape of catch, big or small corresponding, the shape of catch, big or small corresponding simultaneously with the regular hexagon crystal grain that will produce with counterbore 5.With vacuum pump 7 cavity 3 is vacuumized, atmospheric pressure makes catch be close in the counterbore 5, and view picture sticks adhesive tape on all catch, loosens to take off the adhesive tape that is stained with catch after the vacuum and get final product.

E) sticking catch: the adhesive tape that will be stained with catch is attached on the one side that scribbles Chinese wax of chip, tentatively the catch on the adhesive tape is alignd with the graph line of the MASK film of chip back, and catch and graph line driving fit are not misplaced, and makes catch by Chinese wax and chip adhesion;

F) accurately align: the Chinese wax on the preheating chip is to softening, and the position facing to microscope is accurately calibrated catch makes catch and graph line align driving fit, tears adhesive tape off behind the cooling Chinese wax;

G) blast cutting: with chip post catch towards last, put on the position, suction hole of blowing machine drive belt and inhale, transmit adhesive tape and enter in the blast cavity, blowing machine carries out blast cutting to chip;

H) separate crystal grain: the material that blast is intact is put into separating tank successively and is separated, put into proper amount of acetone and dissolve Chinese wax, make sheet glass, catch and die separation open, pull sheet glass and catch out, isolate crystal grain and sand grains with screen cloth, isolated crystal grain is put into the ultrasonic oscillator removal of contamination, dry crystal grain, remove foreign material and particle with screen cloth, at last crystal grain is put in storage.

The rectifier grain of producing is regular hexagon, and its regular hexagon area is 1.299 times of square crystal grain in the past, has improved area utilization 30%.When required DC Forward Current was definite value, resistance value reduced when area increased, and forward dc voltage reduces, and the device heating amount reduces, and the product durability strengthens.Surge forward current increases, and the shock-resistant ability of product strengthens; The regular hexagon tip is 120 degree obtuse angles, compares with foursquare an angle of 90 degrees, and the point discharge effect reduces, and the reverse withstand voltage properties of product strengthens; Regular hexagon is than the more approaching circle of square, and copper conductor table top center is more approached in the crystal grain position when rectifier welds, and has avoided the breakage that expose the corner of crystal grain in the welding; Produce this regular hexagon rectifier grain, use machine cuts mode in the past to be difficult to realize.Simultaneously, with respect to machine cuts mode in the past, the GPP crystal grain that the blast method cuts out is to full blow across catch to be separated into crystal grain, and the glass furrow rim is neat, and the electrical property protection is more superior.The performance range of this regular hexagon rectifier grain is DC Forward Current: 1A～50A; Peak-inverse voltage: 5V～2000V; Forward dc voltage: 0.93V～1.8V; Reverse recovery time: 20ns～9000ns; Reverse dc: 0.5 μ A～10 μ A.

In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.

Claims

1. produce the rectifier grain suction cup mould for one kind, it is characterized in that: comprise patrix (1) and counterdie (2), described patrix (1) forms a cavity that can be evacuated (3) with counterdie (2) for being detachably connected, the upper surface of described patrix (1) is provided with groove (4), the bottom surface of described groove (4) is provided with a plurality of cellular compact arranged regular hexagon counterbores (5) that are, and described each counterbore (5) all is connected with described cavity (3).

2. a kind of production rectifier grain suction cup mould according to claim 1 is characterized in that: described mould is provided with a ventilation mouth (6) that is connected with described cavity (3), and described ventilation mouth (6) is connected with vacuum pump (7).

3. a kind of production rectifier grain suction cup mould according to claim 1 is characterized in that: the periphery of described patrix (1) extends flange downwards and forms an opening, and described counterdie (2) is provided with the projection (8) that matches with described opening.

4. a kind of production rectifier grain suction cup mould according to claim 1 is characterized in that: described patrix (1) is connected locking with counterdie (2) by bolt (9).

5. a kind of production rectifier grain suction cup mould according to claim 1, it is characterized in that: described groove (4) is rounded.