Ninety-nine percent of the manufacturers of military chips are foreign companies, mainly in Europe and America, followed by Japan, South Korea, Taiwan Province Province and China.
The main manufacturers of military chips are TI, ADI, MAXIM, Lingte, Anhuagao, Cypress, NXP, HITITE, E2V, ATMEL, XILINX, LITTCE, ACTEL,,,,, too many, some make microwave chips, and most of them are used in communication and military industry, which is awesome. Many domestic research institutes imitate other people's things.
Specific classification: single chip microcomputer, FPGA, CPLD, power amplifier, DSP, power management chip LDO, DC-DC, charge pump, sensor, aviation rectifier, diode and CMOS tube are all very expensive.
I can't learn this for a while. You need to work in this company for a few more years, and you will learn it naturally.