Summary of the invention:
The object of the invention is to overcome above-mentioned deficiency, provide smooth and easy, the good rate of a kind of production to improve, with low cost, best in quality, reliability is high, integrated circuit or discrete component flat array bump package structure that heat radiation property is high.
The object of the present invention is achieved like this: a kind of integrated circuit or discrete component flat array bump package structure, comprise Ji Dao, chip, function output pin and plastic packaging body, described function output pin is distributed in the outside of Ji Dao, and chip is positioned on the Ji Dao, it is characterized in that:
The Ji Dao of described plastic packaging external body and function output pin protrude from the plastic packaging surface;
Described Ji Dao has single Ji Dao or a plurality of Ji Dao;
Described function output pin has single or/and many rows;
Described chip has single or multiple.
Compared with prior art, the present invention adopts flat bump array encapsulation (FBP BGA) to have following advantage:
One, the collocation form of Ji Dao and chip:
The metal substrate adopts the mode etch partially to arrange in pairs or groups behind the circuit finish layer again, can accomplish that equally single basic island single-chip, many of single Ji Dao arrange chip, can accomplish equally that in same packaging body many of many Ji Dao arrange the modes of emplacements such as chip; And the cost of metal substrate is lower. The cost of plastic circuit substrate exceeds more than the twice at least than the Metal Substrate plate material cost of flat bump array encapsulation.
Two, the difference mode of plastic packaging external body function output pin:
The metal substrate adopts twice etched mode can easily reach the multiple distribution mode of plastic packaging external body function output pin, and such as single, many rows etc., and cost is lower.
Three, the protrusion performance of plastic packaging external body function output pin
The function output pin that the metal substrate adopts twice etched mode can easily reach the plastic packaging external body protrudes from the surface of plastic packaging body.
Four, the coplanar ability of Ji Dao and function output pin:
The metal substrate adopts twice etched mode to guarantee the absolute coplanar property of Ji Dao and function output pin, and the problem that can never have function output pin to fall, lack, cave in produces.
Five, the heat radiation ability bottom the base island exposed plastic packaging body
The metal substrate adopts the mode of second etch to make the Ji Dao of heat transmission directly expose and protrude from the bottom of plastic packaging body, and Ji Dao is welded on the printed circuit board (PCB) with function output pin; So, when utilizing air to dispel the heat, the heat energy that chip changes into because of electric energy directly can also be seen through rapidly printed circuit board (PCB) and dissipate away.
Concrete enforcement mode:
Embodiment 1:
Referring to Fig. 1, adopt integrated circuit of the present invention or discrete component flat array bump package structure, mainly formed by basic island 1, chip 2, function output pin 3, gold thread 4 and plastic packaging body 5. Described function output pin 3 is distributed in the outside on basic island 1, and described chip 2 is positioned on the basic island 1. Gold thread 4 is connected between chip 2 and the function output pin 3, and described basic island 1, chip 2, function output pin 3 and gold thread 4 are all sealed with plastic packaging body 5, and makes the basic island 1 of plastic packaging external body and function output pin 3 protrude from plastic packaging body 5 surfaces. Described function output pin 3 comprises metal layer 3.1, activation layer 3.2, metal substrate layer 3.3, activation layer 3.4 and metal layer 3.5 from the inside to the outside successively. The surface that function output pin 3 protrudes from plastic packaging body 5 is coated by skin activation layer 3.4 and outer layer metal layer 3.5. Described basic island 1 comprises metal layer 1.1, activation layer 1.2, metal substrate layer 1.3, activation layer 1.4 and metal layer 1.5 from the inside to the outside successively, and the surface that basic island 1 protrudes from plastic packaging body 5 is coated by skin activation layer 1.4 and outer layer metal layer 1.5.
There are single Ji Dao or a plurality of Ji Dao in described basic island 1; Described function output pin 3 has single or/and many rows distribute; Described chip 2 has single or many.
In addition: above-described embodiment 1 can also have several special cases:
1) inside and outside two layers of activation layer 3.2,3.4 and 1.2,1.4 also can be save in function output pin 3 and basic island 1.
2) function output pin 3 and basic island 1 part that protrudes from plastic packaging body 5 only has bottom face to be coated by skin activation layer 3.4,1.4 and outer layer metal layer 3.5,1.5, and all the other parts are not wrapped by.
3) inside and outside two layers of activation layer 3.2,3.4 and 1.2,1.4 are save on function output pin 3 and basic island 1, and the part that function output pin 3 and basic island 1 protrude from the plastic packaging body only has bottom face to be coated by outer layer metal layer 3.5,1.5, and the remaining surface part is not wrapped by.
Embodiment 2: single Ji Dao/single function output pin/single-chip
Referring to Fig. 2~3, described Ji Dao has single, and the function output pin in the outside, single basic island has single, and single function output pin is arranged in a side (Fig. 1) or the many sides (Fig. 2) of single Ji Dao, and single chips is arranged on single Ji Dao.
Embodiment 3: single Ji Dao/many row functions output pin/single-chip
Referring to Fig. 4, described Ji Dao has single, and the function output pin in the outside, single basic island has many rows, and many row functions output pin is arranged in a side or the many sides of single Ji Dao; On single Ji Dao single chips is arranged. (Fig. 5)
Embodiment 4: single Ji Dao/single function output pin/multi-chip
Referring to Fig. 5~6, described Ji Dao has single, and the function output pin in the outside, single basic island has single, and single function output pin is arranged in a side (Fig. 5) or the many sides (Fig. 6) of single Ji Dao, on single Ji Dao multiple chips is arranged. The arrangement of multiple chips on single Ji Dao has to be arranged or/and stacking.
Embodiment 5: single Ji Dao/many row functions output pin/multi-chip
Referring to Fig. 7, described Ji Dao has single, and the function output pin in the outside, single basic island has many rows, and many row functions output pin is arranged in a side or the many sides of single Ji Dao; On single Ji Dao multiple chips is arranged. The arrangement of multiple chips on single Ji Dao has to be arranged or/and stacking.
Embodiment 6: many Ji Dao/single function output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in the outside, a plurality of basic island has single, and single function output pin is arranged in a side or the many sides of a plurality of Ji Dao, on each Ji Dao single chips is arranged in a plurality of basic islands.
Embodiment 7: many Ji Dao/single function output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and single function output pin is arranged in a side or the many sides of each Ji Dao, on each Ji Dao single chips is arranged in a plurality of basic islands.
Embodiment 8: many Ji Dao/many row functions output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in each outside, basic island has many rows in a plurality of basic islands, and many row functions output pin is arranged in a side or the many sides of each Ji Dao; On each Ji Dao single chips is arranged in a plurality of basic islands.
Embodiment 9: many Ji Dao/list, many row functions output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and many rows are also arranged, and the single row or multiple rows function output pin is arranged in a side or the many sides of each Ji Dao; On each Ji Dao single chips is arranged in a plurality of basic islands.
Embodiment 10: many Ji Dao/single function output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in the outside, a plurality of basic island has single, and single function output pin is arranged in a side or the many sides of a plurality of Ji Dao; On each Ji Dao multiple chips is arranged in a plurality of basic islands. The arrangement of multiple chips on each Ji Dao has to be arranged or/and stacking.
Embodiment 11: many Ji Dao/single function output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and single function output pin is arranged in a side or the many sides of each Ji Dao, on each Ji Dao multiple chips is arranged in a plurality of basic islands. The arrangement of multiple chips on each Ji Dao has to be arranged or/and stacking.
Embodiment 12: many Ji Dao/many row functions output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in each outside, basic island has many rows in a plurality of basic islands, and many row functions output pin is arranged in a side or the many sides of each Ji Dao; On each Ji Dao multiple chips is arranged in a plurality of basic islands. The arrangement of multiple chips on each Ji Dao has to be arranged or/and stacking.
Embodiment 13: many Ji Dao/list, many row functions output pin/multi-chip
Described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and many rows are also arranged, and the single row or multiple rows function output pin is arranged in a side or the many sides of each Ji Dao; On each Ji Dao multiple chips is arranged in a plurality of basic islands. The arrangement of multiple chips on each Ji Dao has to be arranged or/and stacking.
Embodiment 14: many Ji Dao/single function output pin/list, multi-chip
Referring to Fig. 8~9, described Ji Dao has a plurality of, and the function output pin in the outside, a plurality of basic island has single, and single function output pin is arranged in a side or the many sides of a plurality of Ji Dao; On the Ji Dao that has in a plurality of basic islands single chips is arranged, on the Ji Dao that has multiple chips is arranged, the arrangement of multiple chips on Ji Dao has to be arranged or/and stacking.
Embodiment 15: many Ji Dao/single function output pin/list, multi-chip
Referring to Figure 10, described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and single function output pin is arranged in a side or the many sides of each Ji Dao; On the Ji Dao that has in a plurality of basic islands single chips is arranged, on the Ji Dao that has multiple chips is arranged, the arrangement of multiple chips on Ji Dao has to be arranged or/and stacking.
Embodiment 16: many Ji Dao/many row functions output pin/list, multi-chip
Referring to Figure 11, described Ji Dao has a plurality of, and the function output pin in each outside, basic island has many rows in a plurality of basic islands, and many row functions output pin is arranged in a side or the many sides of each Ji Dao; On the Ji Dao that has in a plurality of basic islands single chips is arranged, on the Ji Dao that has multiple chips is arranged, the arrangement of multiple chips on Ji Dao has to be arranged or/and stacking.
Embodiment 17: many Ji Dao/list, many row functions output pin/list, multi-chip
Referring to Figure 12, described Ji Dao has a plurality of, and the function output pin in a plurality of basic islands outside each basic island has single, and many rows are also arranged, and the single row or multiple rows function output pin is arranged in a side or the many sides of each Ji Dao; On the Ji Dao that has in a plurality of basic islands single chips is arranged, on the Ji Dao that has multiple chips is arranged, the arrangement of multiple chips on Ji Dao has to be arranged or/and stacking.