GB1316699A - Power transistors having controlled emitter impurity concentrations - Google Patents

Power transistors having controlled emitter impurity concentrations

Info

Publication number
GB1316699A
GB1316699A GB4217471A GB4217471A GB1316699A GB 1316699 A GB1316699 A GB 1316699A GB 4217471 A GB4217471 A GB 4217471A GB 4217471 A GB4217471 A GB 4217471A GB 1316699 A GB1316699 A GB 1316699A
Authority
GB
United Kingdom
Prior art keywords
power transistors
emitter
impurity concentrations
sheet resistance
emitter impurity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4217471A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB1316699A publication Critical patent/GB1316699A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Bipolar Transistors (AREA)
GB4217471A 1970-09-17 1971-09-09 Power transistors having controlled emitter impurity concentrations Expired GB1316699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7302770A 1970-09-17 1970-09-17

Publications (1)

Publication Number Publication Date
GB1316699A true GB1316699A (en) 1973-05-09

Family

ID=22111267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4217471A Expired GB1316699A (en) 1970-09-17 1971-09-09 Power transistors having controlled emitter impurity concentrations

Country Status (10)

Country Link
US (1) US3614553A (enExample)
JP (1) JPS5128472B1 (enExample)
AU (1) AU461443B2 (enExample)
BE (1) BE772710A (enExample)
CA (1) CA922423A (enExample)
DE (1) DE2143028B2 (enExample)
FR (1) FR2106574B1 (enExample)
GB (1) GB1316699A (enExample)
NL (1) NL7112750A (enExample)
SE (1) SE361980B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296336A (en) * 1979-01-22 1981-10-20 General Semiconductor Co., Inc. Switching circuit and method for avoiding secondary breakdown

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192082A (en) * 1962-10-23 1965-06-29 Hitachi Ltd Process for the production of npn or pnp junction
US3458367A (en) * 1964-07-18 1969-07-29 Fujitsu Ltd Method of manufacture of superhigh frequency transistor
US3338758A (en) * 1964-12-31 1967-08-29 Fairchild Camera Instr Co Surface gradient protected high breakdown junctions
GB1153497A (en) * 1966-07-25 1969-05-29 Associated Semiconductor Mft Improvements in and relating to Semiconductor Devices
FR1541622A (fr) * 1966-10-24 1968-10-04 Philips Nv Transistor
US3487301A (en) * 1968-03-04 1969-12-30 Ibm Measurement of semiconductor resistivity profiles by measuring voltages,calculating apparent resistivities and applying correction factors

Also Published As

Publication number Publication date
JPS5128472B1 (enExample) 1976-08-19
DE2143028A1 (de) 1972-03-23
FR2106574B1 (enExample) 1977-08-05
FR2106574A1 (enExample) 1972-05-05
DE2143028B2 (de) 1976-02-19
NL7112750A (enExample) 1972-03-21
CA922423A (en) 1973-03-06
SE361980B (enExample) 1973-11-19
BE772710A (fr) 1972-01-17
US3614553A (en) 1971-10-19
AU3291771A (en) 1973-03-08
AU461443B2 (en) 1975-05-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees