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公开(公告)号：EP0860028A1
公开(公告)日：1998-08-26
申请号：EP96940832.0
申请日：1996-11-06
申请人： ENDGATE CORPORATION
发明人： STONEHAM, Edward, B.
IPC分类号： H01L29
CPC分类号： H01L29/93
摘要： A varactor (100) comprising a substrate of semiconductor material (10) on which is grown both the electrostatic barrier having a first layer (22 or 26) of material doped with donor impurities and a second layer (24) of material doped with acceptor impurities and a depletable layer (30). In other embodiments of the present invention varactors are provided that include a plurality of barrier and depletable layer pairs grown in a serial arrangement. Both homojunction and heterojunction varactors are disclosed.
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公开(公告)号：EP0860024A2
公开(公告)日：1998-08-26
申请号：EP96938669.0
申请日：1996-10-25
申请人： ENDGATE CORPORATION
CPC分类号： H01L23/66 , H01L24/81 , H01L25/16 , H01L2223/6627 , H01L2223/6644 , H01L2224/16 , H01L2224/81801 , H01L2924/01013 , H01L2924/01033 , H01L2924/0106 , H01L2924/10329 , H01L2924/1305 , H01L2924/1306 , H01L2924/13091 , H01L2924/14 , H01L2924/1423 , H01L2924/15174 , H01L2924/1903 , H01L2924/19043 , H01L2924/3011 , H03F3/265 , H03F3/604 , H03F2200/372 , H03F2200/451 , H03F2200/543 , H01L2924/00
摘要： A means of connecting a plurality of essentially identical active devices (Q1, Q2, Q3, Q4) is presented for the purpose of multifunction and multiple function operation. These devices (Q1, Q2, Q3, Q4), mounted on a chip (66), are flip-mounted to a circuit motherboard having large passive elements. A push-pull amplifier (50) is presented as an example in which the multiple function operation is the combining of amplifiers (56, 58) whose active devices (Q1, Q2, Q3, Q4) are on a single chip (66). The electromagnetic coupling, impedance matching and signal transmission are variously provided by the use of striplines (82, 88), slotlines (94, 100), coplanar waveguides (116, 130), and a slotline (180) converted into a coplanar waveguide (176, 178).
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