CH263405A - Process for the manufacture of elements of alternating current rectifiers. - Google Patents

Process for the manufacture of elements of alternating current rectifiers.

Info

Publication number
CH263405A
CH263405A CH263405DA CH263405A CH 263405 A CH263405 A CH 263405A CH 263405D A CH263405D A CH 263405DA CH 263405 A CH263405 A CH 263405A
Authority
CH
Switzerland
Prior art keywords
manufacture
elements
alternating current
current rectifiers
rectifiers
Prior art date
Application number
Other languages
French (fr)
Inventor
Westinghouse Brake Sig Limited
Original Assignee
Westinghouse Brake & Signal
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 Westinghouse Brake & Signal filed Critical Westinghouse Brake & Signal
Publication of CH263405A publication Critical patent/CH263405A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
    • H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/105—Treatment of the surface of the selenium or tellurium layer after having been made conductive
CH263405D 1938-12-28 1946-05-21 Process for the manufacture of elements of alternating current rectifiers. CH263405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37680/38A GB523216A (en) 1938-12-28 1938-12-28 Improvements relating to the manufacture of alternating current rectifiers

Publications (1)

Publication Number Publication Date
CH263405A true CH263405A (en) 1949-08-31

Family

ID=10398214

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263405D CH263405A (en) 1938-12-28 1946-05-21 Process for the manufacture of elements of alternating current rectifiers.

Country Status (5)

Country Link
US (1) US2266922A (en)
CH (1) CH263405A (en)
DE (1) DE856663C (en)
FR (1) FR859693A (en)
GB (1) GB523216A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE445491A (en) * 1941-05-07
BE471989A (en) * 1941-07-16
US2522474A (en) * 1942-07-02 1950-09-12 Battelle Memorial Institute Treatment of zinc surfaces
US2438923A (en) * 1943-02-11 1948-04-06 Fed Telephone & Radio Corp Method and means for making selenium elements
BE476039A (en) * 1943-07-30 1900-01-01
DE967323C (en) * 1943-08-06 1957-11-07 Siemens Ag Process for the production of selenium rectifiers, the top electrode of which is thallium added in small quantities
BE474674A (en) * 1945-05-12
NL148598B (en) * 1948-12-29 1900-01-01 Science Union & Cie METHOD FOR THE PREPARATION OF A MEDICINAL PRODUCT WHICH REDUCES THE TENDENCY OF PLATELETS TO CLUGGING AND STICKING TOGETHER AND SHOWS FIBRINOLYTIC ACTIVITY, A MEDICINAL PRODUCT WITH SUCH ACTIVITY, AND A METHOD FOR THE PREPARATION OF A MEDICINAL COMPOUND.
US2841749A (en) * 1955-04-11 1958-07-01 Sarkes Tarzian Selenium rectifier

Also Published As

Publication number Publication date
DE856663C (en) 1952-11-24
FR859693A (en) 1940-12-24
GB523216A (en) 1940-07-09
US2266922A (en) 1941-12-23

Similar Documents

Publication Publication Date Title
CH260423A (en) Process for the manufacture of dry alternating current rectifiers.
CH263405A (en) Process for the manufacture of elements of alternating current rectifiers.
FR51098E (en) Process for the manufacture of electrically conductive elements
FR854709A (en) Process for the manufacture of electric heating elements
CH214020A (en) Process for the manufacture of selenium rectifiers.
FR868733A (en) Process for the manufacture of isoquinoleine compounds
FR858998A (en) Process for the manufacture of selenium rectifiers
DK71160C (en) Process for the production of selenium rectifiers.
FR863157A (en) Process for manufacturing powdered alloys
FR837345A (en) Process for the manufacture of electrically conductive elements
FR857215A (en) Process for the manufacture of diethylenediamine
FR860507A (en) Process for obtaining combinations with high bactericidal power
FR49396E (en) Ionic valve for the production of alternating current
FR859999A (en) Method for improving the operation of mechanical current rectifiers
FR868963A (en) Process for the manufacture of prostheses
FR843209A (en) Improvements in equipment for the manufacture of products from molten materials
FR882477A (en) Process for the manufacture of agglomerates
FR919256A (en) Process for the manufacture of construction elements
FR875180A (en) Process for the manufacture of perchlorethylene
DK73048C (en) Process for the production of selenium material for the production of selenium rectifiers.
FR931877A (en) Advanced steelmaking process
FR867945A (en) Manufacturing process for dry current rectifiers
FR868732A (en) Process for the manufacture of isoquinoline compounds
FR844435A (en) Apparatus for the production of curved metal sheets
FR840682A (en) Apparatus for the production of curved metal sheets