Hdi circuit boards and buried blind hole PCB distinction

by:Rocket PCB     2020-07-17
Have buried blind hole is not necessarily hdi PCB circuit board, hdi board usually have blind holes, buried hole is not necessarily, to see your product is the product of a few order pressure. Instructions are as follows: 6 layers PCB in order, second order is the need for laser drilling of the board, namely HDI PCB. 6 layer of first-order HDI board refers to the blind hole: 1 - 2, 2 - 5, 5 - 6, 1 - namely 2, 5 - 6 laser drilling. 6 layer of second order HDI board refers to the blind hole: 1 - 2, 2 - 3, 3 - 4, 4 - 5, 5 - 6. That is 2 times the laser punch. Drill 3 - in the first place 4 buried hole, then pressing 2 - 5, then drill 2 - for the first time 3, 4 - 5 laser hole, then time pressing 1-2 6, then drill 1 - for the second time 2, 5 - 6 laser hole, finally to drill hole, so the second order twice pressing after the HDI board, two laser drilling. 12 buried layer blind hole PCB second-order HDI board also is divided into: wrong hole second-order HDI board and pile hole second-order HDI board, wrong hole second-order HDI board is refers to the blind hole 1 - 2 and 2 - 3 is staggered, and fold the second-order HDI board is refers to the blind hole hole 1 - 2 and 2 - 3 fold together, for example: blind: 1 - 3, 3 - 4, 4 - 6. So on the third order and fourth order & # 8230; … Are the same. Rocket PCB as a professional supplier of PCB circuit boards, focus on high-precision double-sided/multi-layer circuit board, HDI board, thick copper, blind hole buried plate proofing and small batch, high frequency circuit board production and PCB board production.
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