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Product Info

RODUCT PARAMETERS Unit (mm) 

PRODUCT NAME

MODEL

INSTRUCTIONS

STANDARD SIZE

REMARK

High Performance Back-drill Entry Sheet

HB33A13B

Thickness:0.46mm±10%;

Aluminum sheet thickness:0.125mm±0.01mm;

Resin thickness:

0.33mm±10%



37"*49"; 41"*49";43"*49";                                              

Can be cut according to 

customer requirements. 

1.The surface of the product is blue.

Insulation layer: The thickness of 0.33mm can effectively insulate the contact between the drill tip and the aluminum sheet, and prevent short-circuit caused by accidents such as scratches and collisions, resulting in abnormal drilling depth.

PRODUCT ADVANTAGES:

① Compared with the traditional back-drilling process of the Traditional Aluminum Sheet+Phenolic Entry Board, it can effectively improve the production efficiency, reduce the production cost, and meet the quality requirements of customers for back drilling.It is the best choice for back drilling process to improve the increases productivity and reduce the production cost.

② The margin design (metal edge) greatly facilitates the operation of the mushroom head of the drilling rig during back drilling and improves production efficiency.

③ It has recycling value, can effectively save costs and meet environmental protection requirements.

④ It can be customized according to customers' different product structures and needs to meet customers' diversified needs.


METHOD OF USE & STORAGE CONDITIONS:     

① When used, the blue side is facing up, the aluminum sheet is facing down and covered on the PCB of same size,and the four sides are fixed with textured adhesive paper or mechanical means, and there is no arching visually.

② The drill needs to reserve a chip removal space of 10% to 20% of the effective edge length.   

③ After each small package is opened, use it up as soon as possible within 12 hours.If it cannot be used up, please repackage it for storage.

④ It is strictly forbidden to store it vertically.The original packaging storage period is six months.It must be placed horizontally when stored,with the aluminum sheet facing up and the blue side facing down. The temperature is controlled at 23±5℃, and the humidity is controlled at RH55±10%.