Your company has recently achieved the simultaneous shipment of 4-nanometer node multi-chip system-integrated packaging products, with the largest package area being about 1,500 square millimeters. Regarding this 4-nanometer multi-chip system-integrated packaging product and the packaging area of ​​up to 1,500 square millimeters, can your company introduce more technical details of the packaging method used this time, how many chips are integrated in this area, and whether it is a two-dimensional method or a stacked method? Thank you for your answer.

Changdian Technology: Dear investors, hello. Changdian Technology XDFOI? includes 2D/2.5D/3D Chiplet, which can provide customers with one-stop services from conventional density to extremely high density, from extremely small size to extremely large size, and can effectively solve the pain points of customer chip finished product manufacturing in the post-Moore era. Through the heterogeneous integration technology of small chips, one or more logic chips (CPU/GPU, etc.), as well as I/O Chiplet and/or high-bandwidth memory chip (HBM), etc. are placed on the organic rewiring stacking interposer (RDL Stack Interposer, RSI) to form a highly integrated heterogeneous package. The company's organic rewiring stacking interposer has a minimum line width and line spacing of 2um, which can realize multi-layer wiring, and the overall thickness can be controlled within 50um. At the same time, it adopts extremely narrow pitch bump interconnection technology, and the center distance of micro bumps (μBump) is 40μm, which realizes high-density integration of various processes in thinner and smaller unit areas, achieving higher integration, stronger module functions and smaller package sizes. In addition, the company can also perform metal deposition on the back of the package, effectively improving the heat dissipation efficiency while enhancing the electromagnetic shielding capability of the package according to design requirements and improving the yield rate of the finished chip. Thank you for your attention and support to the company.