FR71643E - Improvements to electric crystal rectifiers - Google Patents

Improvements to electric crystal rectifiers

Info

Publication number
FR71643E
FR71643E FR71643DA FR71643E FR 71643 E FR71643 E FR 71643E FR 71643D A FR71643D A FR 71643DA FR 71643 E FR71643 E FR 71643E
Authority
FR
France
Prior art keywords
wire
sealed
copper
semi
metal
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
Other languages
French (fr)
Inventor
James Grierson Litterick
Charles William Ambrose
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Priority claimed from GB13657/51A external-priority patent/GB716250A/en
Priority claimed from GB19173/53A external-priority patent/GB753488A/en
Priority claimed from US434865A external-priority patent/US2928030A/en
Priority claimed from GB4261/56A external-priority patent/GB797822A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority claimed from GB23454/58A external-priority patent/GB835865A/en
Application granted granted Critical
Publication of FR71643E publication Critical patent/FR71643E/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
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Abstract

914,592. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. April 17, 1959 [April 23, 1958], No. 13142/59. Class 37. [Also in Group XXII] A semi-conductor element is mounted in a casing comprising a metal part including a rim fitting into a channel in another metal part of different hardness. After assembling the parts with the rim in the channel, the housing is sealed by plastic deformation in the cold of one of the parts. In one embodiment the softer part is a threaded copper bolt 4 with an annular channel 3. Sealing is effected by deforming the edges of the channel over the flanged edge of steel cylinder 6. External connection to the upper face of the semi-conductor element is provided by a stranded copper or silver wire (Fig. 4) with a conical solid end engaging the element. The wire leaves the housing through a metal tubule 8 in a sintered glass bead 7. The wire, which is deformed and solid where it passes through the tubule, is pinch sealed therein in vacuo or in an inert atmosphere, the abutting surfaces of the wire and tube being coated with a low-melting metal, e.g., tin, to facilitate sealing. In an alternative arrangement, the wire consists of a solid-headed part 11b of silver and an upper part 11a of tinned copper, the abutting solid ends 13a, 13b having the cross-sections shown to facilitate evacuation of the housing prior to sealing. During the pinch sealing process, the two parts of the wire are joined and sealed within the tube. In a modification of the above device, the copper base is internally threaded for mounting on a cooling block and silverplated to allow etching of the mounted semiconductor element without copper contamination of the etchant. A transistor is also described, comprising two sub-assemblies 5, 6, 7, 8 of the construction shown in Fig. 1, sealed in annular grooves on opposite faces of an apertured plate carrying the semi-conductor element. In another arrangement (Fig. 3) comprising copper base-plate 4 and steel cap 2, connections are sealed through the base-plate by glass-metal seals, as shown in Fig. 3a, the edges of apertures 10 being deformed in the cold state to fix the seals.
FR71643D 1951-06-08 1957-02-08 Improvements to electric crystal rectifiers Expired FR71643E (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB13657/51A GB716250A (en) 1951-06-08 1951-06-08 Improvements in or relating to electric semi-conducting devices
GB19173/53A GB753488A (en) 1953-07-10 1953-07-10 Improvements in or relating to electrical couplings to semiconductor elements
US434865A US2928030A (en) 1954-06-07 1954-06-07 Semiconductor devices
GB4261/56A GB797822A (en) 1951-06-08 1956-02-10 Improvements in or relating to semi-conductor junction diodes
DEST13682A DE1098102B (en) 1951-06-08 1958-04-23 A method of manufacturing an electric semiconductor device
GB23454/58A GB835865A (en) 1957-05-21 1958-07-22 Improvements in or relating to crystal rectifiers and methods of manufacture thereof
DE884824X 1958-09-30
DEST15123A DE1255823B (en) 1951-06-08 1959-05-13 Process for the production of cooling elements for electrical components from cooling plates arranged on a bolt perpendicular to the longitudinal axis, in particular for semiconductor power rectifiers and transistors

Publications (1)

Publication Number Publication Date
FR71643E true FR71643E (en) 1960-01-13

Family

ID=31982807

Family Applications (4)

Application Number Title Priority Date Filing Date
FR1066148D Expired FR1066148A (en) 1951-06-08 1952-06-06 Improvements to electric crystal rectifiers
FR66909D Expired FR66909E (en) 1951-06-08 1954-07-06 Improvements to electric crystal rectifiers
FR69762D Expired FR69762E (en) 1951-06-08 1955-06-06 Improvements to electric crystal rectifiers
FR71643D Expired FR71643E (en) 1951-06-08 1957-02-08 Improvements to electric crystal rectifiers

Family Applications Before (3)

Application Number Title Priority Date Filing Date
FR1066148D Expired FR1066148A (en) 1951-06-08 1952-06-06 Improvements to electric crystal rectifiers
FR66909D Expired FR66909E (en) 1951-06-08 1954-07-06 Improvements to electric crystal rectifiers
FR69762D Expired FR69762E (en) 1951-06-08 1955-06-06 Improvements to electric crystal rectifiers

Country Status (8)

Country Link
US (1) US2785349A (en)
BE (4) BE554903A (en)
CH (2) CH342657A (en)
DE (6) DE968077C (en)
FR (4) FR1066148A (en)
GB (4) GB795113A (en)
LU (1) LU37433A1 (en)
NL (3) NL238107A (en)

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DE1237695B (en) * 1961-10-24 1967-03-30 Siemens Ag Semiconductor arrangement with a semiconductor element enclosed in a gas-tight housing
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US3216084A (en) * 1963-04-10 1965-11-09 Motorola Inc Semiconductor process control technique
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USRE30458E (en) 1977-12-30 1980-12-23 Hitachi Maxell, Ltd. Dry cells
US4574330A (en) * 1982-12-20 1986-03-04 Burr-Brown Corporation Heat sink for dissipating heat generated by electronic displays
DE3421672A1 (en) * 1984-06-09 1985-12-12 SEMIKRON Gesellschaft für Gleichrichterbau u. Elektronik mbH, 8500 Nürnberg INTERCHANGEABLE RESISTANT, SWITCHABLE SEMICONDUCTOR COMPONENT
DE10128970A1 (en) * 2001-06-15 2002-12-19 Fortu Bat Batterien Gmbh Rechargeable battery cell comprises a negative electrode, an electrolyte system, and a positive electrode with one electrode having an electrically conducting deviating element with a surface layer made from a protective metal
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Also Published As

Publication number Publication date
DE1255823B (en) 1967-12-07
NL86185C (en) 1900-01-01
DE968077C (en) 1958-01-16
BE554903A (en) 1900-01-01
CH384722A (en) 1965-02-26
DE1015934B (en) 1957-09-19
GB795113A (en) 1958-05-14
GB914592A (en) 1963-01-02
FR69762E (en) 1958-12-30
NL238107A (en) 1900-01-01
DE1069726B (en) 1959-11-26
LU37433A1 (en) 1900-01-01
US2785349A (en) 1957-03-12
BE538791A (en) 1900-01-01
GB877644A (en) 1961-09-20
FR1066148A (en) 1954-06-02
GB884824A (en) 1961-12-20
FR66909E (en) 1957-10-31
DE1098102B (en) 1961-01-26
BE512559A (en) 1900-01-01
CH342657A (en) 1959-11-30
DE1060992B (en) 1959-07-09
NL170157B (en) 1900-01-01
BE530249A (en) 1900-01-01

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