GB904211A - Improvements in and relating to methods of manufacturing pellets - Google Patents

Improvements in and relating to methods of manufacturing pellets

Info

Publication number
GB904211A
GB904211A GB39844/58A GB3984458A GB904211A GB 904211 A GB904211 A GB 904211A GB 39844/58 A GB39844/58 A GB 39844/58A GB 3984458 A GB3984458 A GB 3984458A GB 904211 A GB904211 A GB 904211A
Authority
GB
United Kingdom
Prior art keywords
pellets
indium
acid
relating
methods
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
GB39844/58A
Inventor
Clifford Benjamin Phillips
Reginald George Phillips
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB39844/58A priority Critical patent/GB904211A/en
Publication of GB904211A publication Critical patent/GB904211A/en
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

Pellets of substantially equal weight and substantially spherical shape are obtained by first producing non-spherical pellets of substantially equal weight, e.g. cylindrical pellets obtained by punching from strip, and then allowing these to fall through a bath of liquid which is so heated that the temperature in the upper part of the bath is above the melting point of the pellet material, while the temperature in the lower part is below that melting point. The treatment of indium in silicone oil and in n-octoic acid is referred to, as is the treatment of indium and indium-gallium alloys in brominated n-octoic acid and in a mixture of n-octoic acid and monochloracetic acid.
GB39844/58A 1958-12-10 1958-12-10 Improvements in and relating to methods of manufacturing pellets Expired GB904211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB39844/58A GB904211A (en) 1958-12-10 1958-12-10 Improvements in and relating to methods of manufacturing pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39844/58A GB904211A (en) 1958-12-10 1958-12-10 Improvements in and relating to methods of manufacturing pellets

Publications (1)

Publication Number Publication Date
GB904211A true GB904211A (en) 1962-08-22

Family

ID=10411799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39844/58A Expired GB904211A (en) 1958-12-10 1958-12-10 Improvements in and relating to methods of manufacturing pellets

Country Status (1)

Country Link
GB (1) GB904211A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505434A (en) * 1966-12-29 1970-04-07 Ici Australia Ltd Method of producing spherical polymer particles
US4076637A (en) * 1976-09-29 1978-02-28 Tyler Corporation Metal dispersions and method for producing same
US4842654A (en) * 1986-07-22 1989-06-27 Matsushita Electric Industrial Co. Ltd. Method of heat treatment of low melting-point metal on an electrode of a chip part
US5653783A (en) * 1994-01-20 1997-08-05 Nippon Steel Corporation Method of producing fine metal balls

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505434A (en) * 1966-12-29 1970-04-07 Ici Australia Ltd Method of producing spherical polymer particles
US4076637A (en) * 1976-09-29 1978-02-28 Tyler Corporation Metal dispersions and method for producing same
US4842654A (en) * 1986-07-22 1989-06-27 Matsushita Electric Industrial Co. Ltd. Method of heat treatment of low melting-point metal on an electrode of a chip part
EP0325660A1 (en) * 1986-07-22 1989-08-02 Matsushita Electric Industrial Co., Ltd. Method of heat treatment of low melting -point metal
US5653783A (en) * 1994-01-20 1997-08-05 Nippon Steel Corporation Method of producing fine metal balls

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