Original document(53 pages) Authorized document(53 pages) 中文版
    A final-stage power amplification transistor is formed of unit transistors arranged in a mixed manner in a region in which the final output amplification transistors is formed. Furthermore, an inductance element is connected between output signal lines to which the final output stage transistors are coupled. Thus, the final-stage transistors in a dual band power amplifier can be made free from current concentration due to heat generation without impairing inter-band isolation.
Application Number
申请号
02155787 Application Date
申请日
2002.12.05
Title 名称 Multi-frequency band power amplifier
Publication Number
公开号
1424762 Publication Date
公开日
2003.06.18
Approval Pub. Date 2006.03.15 Granted Pub. Date 2006.03.15
International Classification 分类号 H01L27/08;H03F3/21
Applicant(s) Name
申请人
Mitsubishi Electric Corp.
Address 地址
Inventor(s) Name 发明人 Yamamoto Kazuya;Suzuki Satoshi
Attorney & Agent 代理人 yang kai wang zhongzhong

  
Programmable element for programming utilizing resistance value change by phase change
Semiconductor memory
Non-valatile memory structure with nitride tunnel penetrating layer
Use of pressure sensitive adhesive in removing surplus indium layer in preparation of indium beads for focal plane device
Semiconductor device and manufacture thereof
Built-in protective P-type high-voltage MOS transistors
Built-in protetive N-type high-voltage MOS transistors
Transverse buffer P-type MOS transistors
Semiconductor memory with multi-byte memory unit and manufacture thereof
Packaging method for short wavelength LED
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.