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A kind of soft and hard combination plate for preventing cover plate breakage and its cover-opening and slicing process
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A soft-rigid combination board and slicing technology, which is applied in the direction of multi-layer circuit manufacturing, printed circuit components, printed circuits, etc., can solve the problems of large cover size and cover breakage, etc. The effect of reducing product scrap
Active Publication Date: 2019-04-16
高德(江苏)电子科技股份有限公司
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[0003] At present, in the production process of the existing Rigid-Flex board back-opening process, due to the need to confirm the quality and reliability of the product, it is unavoidable to perform micro-section analysis on it. Larger, the corresponding cover plate size is also relatively large, it is very easy to break the cover plate, as shown in figure 1 shown
Method used
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Embodiment 1
[0029] Example 1 A soft-rigid combination board that prevents the cover from breaking
[0030] Such as Figure 2-4 Shown: including inner core board soft board layer 1, inner core board hard board layer 2, first prepreg 3, second prepreg 4 and surface copper foil 5;
[0031] Set up in order from top to bottom, specifically: surface copper foil 5, first prepreg 3, inner core board hard board layer 2, second prepreg 4, inner core board soft board layer 1, second prepreg 4, The hard board layer 2 of the inner core board, the first prepreg 3 and the surface layer copper foil 5; after being pressed by a tablet press, a soft and hard combination board for preventing the cover board from breaking is obtained;
[0032] Several Coupons 6 are provided on the hard board layer 2 of the inner core board and the copper foil 5 on the surface layer.
[0033] The soft board layer 1 of the inner core board includes a soft board base material 1-1 and a soft board copper foil 1-2, and a layer o...
Embodiment 2
[0037] Example 2 Process of opening and slicing the rigid-flex board to prevent the breakage of the cover
[0038] Such as Figure 4-5 As shown, the specific steps are:
[0039] (1) Fabrication of the soft board layer of the inner core board: the soft board base material 1-1 is the middle layer, covered with a layer of soft board copper foil 1-2 on the upper and lower sides respectively, and the soft board copper foil 1-2 has a soft board skylight 1 -3;
[0040] (2) Production of the hard board layer of the inner core board: the hard board substrate 2-1 is the middle layer, and the upper and lower layers are respectively covered with a hard board copper foil 2-2; the four corners of the hard board copper foil 2-2 are A Coupon 6 is arranged on the top respectively, and a hard board skylight 2-3 is also opened on the hard board copper foil 2-2;
[0041] (3) Production of prepreg and surface layer copper foil: prepare the first prepreg 3 and the second prepreg 4; the first pre...
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Abstract
The invention relates to a flexible and hard combination board for preventing fracture of a cover plate and an uncapping and slicing process thereof, and belongs to the technical field of the flexible and hard combination boards. The flexible and hard combination board is sequentially provided with a surface-layer copper foil, a first semi-solidified piece, an inner-layer core plate hard board layer, a second semi-solidified piece, an inner-layer core plate flexible board layer, a second semi-solidified piece, an inner-layer core plate hard board layer, a first semi-solidified piece and a surface-layer copper foil, all of which are laminated by a tablet press machine to obtain the flexible and hard combination board for preventing the fracture of the cover plate. A depth parameter is obtained by carrying out sampling, analysis and laser cutting for any Coupon of the four corners through a random needle; and finally the laser cutting for uncapping is carried out to finish the whole process. According to the flexible and hard combination board for preventing the fracture of the cover plate and the uncapping and slicing process thereof, the defect of fracture of the cover plate while the slicing in a flexible and hard combination board post-uncapping process can be improved; as the Coupon is designed on the fractured edge of a printed circuit board, the flexible and hard combination board for preventing the fracture of the cover plate is small in boundary dimension, occupies little space, can be adjusted correspondingly based on the printed circuit boards different in type, dimension and layer number and is convenient for production management of printed circuit board processing plants; the work efficiency is increased; and unnecessary product scrap is reduced.
Description
technical field [0001] The invention relates to a soft-rigid combination board capable of preventing cover breakage and its cover-opening and slicing process, in particular to the processing of a printed circuit soft-hard combination board with a large size of the soft board (the size in the X or Y direction is greater than 5 cm) The technology belongs to the technical field of rigid-flex board. Background technique [0002] With the development trend of thinner, thinner, integrated and multi-functional consumer electronic products, the requirements for the production process of printed circuit rigid-flex boards are getting higher and higher. Following this trend, there will be more and more products for applications such as switching, stylus, mobile POS, and industrial control. The flexible and rigid boards used in this product have a characteristic, that is, the size of the flexible board is larger (the size of the X or Y direction is greater than 5cm or more), and the si...
Claims
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Application Information
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