In this paper

the concept "integration of information security chips based on SiP" is proposed

in order to solve the problem that its hard to integrate the logic chips or blocks with the memory in security systems

while bringing better performance on high-quality

lower-power consumption and high-reliability.The detailed development flow is expounded

and a product of SiP integrating CPU

Flash memory and cryptographic chip is designed.The function and properties of the SiP product satisfy the requirement

thus certificating the feasibility of this scheme.And the scheme represents the major tendency for the electronic technology and information security system in the future.