HDI PCB clone (High Density Interconnector PCB Clone) is a high-precision reverse engineering service for high-density interconnection circuit boards, which is a high-difficulty and high-precision core project in the field of PCB cloning. HDI PCB is a new type of high-density circuit board developed for miniaturization and high integration of electronic products, featuring micro holes, fine lines, narrow spacing, high wiring density and multi-layer stacking structure. Compared with traditional multi-layer PCBs, HDI boards have smaller via hole diameter, higher interconnection density and more compact circuit layout, which can effectively reduce the board area and thickness of electronic products and improve product integration and performance. They are widely used in high-end smart terminal equipment, so HDI PCB clone has extremely high requirements on technical precision and process level.

The technical difficulty of HDI PCB clone is mainly reflected in the restoration of micro-hole process, fine line layout and high-density interconnection structure. The via hole diameter of traditional PCB is generally above 0.2mm, while the micro-hole diameter of HDI board is as small as 0.075-0.15mm, with extremely dense hole distribution and complex interlayer interconnection logic. At the same time, the line width and line spacing of HDI board are as narrow as 0.05-0.1mm, and the wiring density is more than 3 times that of ordinary multi-layer boards. Tiny process errors will lead to circuit short circuit, open circuit and signal failure, which puts forward ultra-high precision requirements for our scanning analysis, design restoration and production processing.

Our HDI PCB clone service adopts international leading ultra-high precision reverse technology and professional HDI dedicated production process. In the sample analysis stage, we use micron-level industrial scanning equipment and 3D microscopic imaging technology to carry out full-data collection of micro holes, fine lines, interlayer connections and stacking structures of HDI boards without dead angle. For the blind buried hole structure and laser micro-hole process unique to HDI boards, we carry out targeted technical analysis to accurately distinguish laser holes, mechanical holes, blind holes and buried holes, and restore the hole position distribution, hole depth and interlayer conduction logic one by one to ensure that all micro-process details of the original board are completely reproduced.

In the design restoration stage of HDI PCB clone, we use professional high-precision PCB design software to carry out hierarchical fine layout, strictly follow the original board's high-density wiring rules, impedance matching design and signal shielding design, and accurately restore the differential line, impedance line, grounding design and high-speed signal transmission channel of HDI board. For the multi-stage stacking and asymmetric stacking structure of high-end HDI boards, we completely copy the original board's stacking sequence, dielectric layer thickness and copper foil parameters to ensure that the structural stability and electrical performance of the cloned board are consistent with the original board. After the completion of design, we carry out high-speed signal simulation and impedance verification to eliminate signal attenuation, distortion and interference problems.

In the production stage, we adopt professional laser drilling process and fine line etching process for HDI board production. The laser drilling equipment accurately processes micro holes with precise hole position and smooth hole wall, ensuring the stability of interlayer conduction. The fine line etching process ensures that the narrow lines are complete and smooth without burrs, breakpoints and short circuits. At the same time, we adopt high-precision lamination process to control the layer alignment error within 0.02mm, completely solving the problems of layer dislocation and pressing deformation easily occurring in HDI board production. The surface treatment processes such as micro-gold plating and OSP high-precision anti-oxidation are all consistent with the original board standards to ensure the welding performance and service life of the product.

HDI PCB clone is mainly applied to high-end miniaturized electronic products, including flagship smart phones, tablet computers, folding screen terminals, high-end Bluetooth headsets, smart wearable devices, 5G communication modules, automotive intelligent sensing equipment and medical miniature precision instruments. These products have strict requirements on PCB volume, weight, performance and stability, and only high-precision HDI cloned boards can meet the matching use requirements. Our HDI clone service supports all types of HDI boards such as first-order HDI, second-order HDI, third-order HDI and stacked hole HDI, covering all high-density interconnection circuit board types in the current market.

We have a professional HDI technical team and advanced production equipment, with rich experience in high-difficulty HDI board cloning. All cloned HDI PCBs pass strict high-speed signal test, impedance test, micro-hole conduction test and environmental aging test, with product precision and performance reaching the international high-end level. We can provide customers with one-stop services including HDI board reverse design, prototype proofing, small-batch trial production and large-batch mass production, and provide complete technical documents and quality test reports, helping customers quickly complete high-end electronic product research and development and mass production.