| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US26627888A | 1988-11-02 | 1988-11-02 | 
| Publication Number | Publication Date | 
|---|---|
| GB8924432D0 GB8924432D0 (en) | 1991-08-21 | 
| GB2243716A GB2243716A (en) | 1991-11-06 | 
| GB2243716Btrue GB2243716B (en) | 1993-05-05 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB8924432AExpired - LifetimeGB2243716B (en) | 1988-11-02 | 1989-10-31 | Self-aligned,planar heterojunction bipolar transistor and method of forming the same | 
| Country | Link | 
|---|---|
| GB (1) | GB2243716B (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| GB2010580A (en)* | 1977-11-14 | 1979-06-27 | Tokyo Shibaura Electric Co | Method for manufacturing a semiconductor device | 
| EP0004292A2 (en)* | 1978-03-27 | 1979-10-03 | International Business Machines Corporation | Process of making a MESA bipolar transistor with self-aligned base and emitter regions | 
| EP0199497A2 (en)* | 1985-04-10 | 1986-10-29 | Fujitsu Limited | Process for fabricating a self-aligned bipolar transistor | 
| EP0206787A2 (en)* | 1985-06-21 | 1986-12-30 | Matsushita Electric Industrial Co., Ltd. | Heterojunction bipolar transistor and method of manufacturing same | 
| GB2179792A (en)* | 1985-08-28 | 1987-03-11 | Mitsubishi Electric Corp | Bipolar transistor | 
| US4683487A (en)* | 1984-11-09 | 1987-07-28 | Hitachi, Ltd. | Heterojunction bipolar transistor | 
| EP0255882A2 (en)* | 1986-08-07 | 1988-02-17 | Siemens Aktiengesellschaft | Npn bipolar transistor with extremely thin emitter/base structure and method for manufacturing the same | 
| EP0289343A1 (en)* | 1987-04-30 | 1988-11-02 | Sony Corporation | Heterojunction bipolar transistors | 
| EP0312965A2 (en)* | 1987-10-23 | 1989-04-26 | Siemens Aktiengesellschaft | Method of producing a planar self-aligned heterojunction bipolar transistor | 
| EP0335720A2 (en)* | 1988-03-30 | 1989-10-04 | Kabushiki Kaisha Toshiba | Bipolar transistor device and method of manufacturing the same | 
| EP0367698A2 (en)* | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Heretojunction bipolar transistor | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| GB2010580A (en)* | 1977-11-14 | 1979-06-27 | Tokyo Shibaura Electric Co | Method for manufacturing a semiconductor device | 
| EP0004292A2 (en)* | 1978-03-27 | 1979-10-03 | International Business Machines Corporation | Process of making a MESA bipolar transistor with self-aligned base and emitter regions | 
| US4683487A (en)* | 1984-11-09 | 1987-07-28 | Hitachi, Ltd. | Heterojunction bipolar transistor | 
| EP0199497A2 (en)* | 1985-04-10 | 1986-10-29 | Fujitsu Limited | Process for fabricating a self-aligned bipolar transistor | 
| EP0206787A2 (en)* | 1985-06-21 | 1986-12-30 | Matsushita Electric Industrial Co., Ltd. | Heterojunction bipolar transistor and method of manufacturing same | 
| GB2179792A (en)* | 1985-08-28 | 1987-03-11 | Mitsubishi Electric Corp | Bipolar transistor | 
| EP0255882A2 (en)* | 1986-08-07 | 1988-02-17 | Siemens Aktiengesellschaft | Npn bipolar transistor with extremely thin emitter/base structure and method for manufacturing the same | 
| EP0289343A1 (en)* | 1987-04-30 | 1988-11-02 | Sony Corporation | Heterojunction bipolar transistors | 
| EP0312965A2 (en)* | 1987-10-23 | 1989-04-26 | Siemens Aktiengesellschaft | Method of producing a planar self-aligned heterojunction bipolar transistor | 
| EP0335720A2 (en)* | 1988-03-30 | 1989-10-04 | Kabushiki Kaisha Toshiba | Bipolar transistor device and method of manufacturing the same | 
| EP0367698A2 (en)* | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Heretojunction bipolar transistor | 
| Title | 
|---|
| Applied physics letter, Vol.52 No10, 7 March 1988,pp822-824.* | 
| GaAs Integrated Circuit Symposium,1EEE Technical Digest 1985catalogue No.85CH2182,pp53-56* | 
| Publication number | Publication date | 
|---|---|
| GB2243716A (en) | 1991-11-06 | 
| GB8924432D0 (en) | 1991-08-21 | 
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| Date | Code | Title | Description | 
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years | Expiry date:20091030 |