公开(公告)号：US3409481A

公开(公告)日：1968-11-05

申请号：US38200964

申请日：1964-07-13

Applicant: SIEMENS AG

Inventor： HANS MERKEL ,  SIEGFRIED LEIBENZEDER

IPC: C30B25/02 ,  H01L21/00 ,  H01L21/205 ,  H01L21/3065

CPC classification number: C30B29/06 ,  C30B25/02 ,  H01L21/00 ,  H01L21/3065 ,  Y10S117/913 ,  Y10S148/016 ,  Y10S148/051 ,  Y10S148/052 ,  Y10S148/054 ,  Y10S257/912

公开(公告)号：US3340009A

公开(公告)日：1967-09-05

申请号：US26673663

申请日：1963-03-20

Applicant: SIEMENS AG

Inventor： FRITZ WENZEL ,  HANS MERKEL

IPC: C01B25/06 ,  C22C1/00 ,  C30B25/00 ,  H01L21/00

CPC classification number: C30B25/00 ,  C01B25/06 ,  C22C1/007 ,  C30B29/40 ,  H01L21/00 ,  Y10S148/049 ,  Y10S148/065 ,  Y10S148/072 ,  Y10S148/079

公开(公告)号：US3359071A

公开(公告)日：1967-12-19

申请号：US32996063

申请日：1963-12-12

Applicant: SIEMENS AG

Inventor： HANS MERKEL ,  JOACHIM DRABNER ,  WOLFGANG KRAUSE

IPC: C01G28/00 ,  C22B30/04

CPC classification number: C01G28/007 ,  C22B30/04

公开(公告)号：US3021196A

公开(公告)日：1962-02-13

申请号：US60833456

申请日：1956-09-06

Applicant: SIEMENS AG

Inventor： HANS MERKEL

IPC: C01B21/064 ,  C01B25/08

CPC classification number: C01B25/084 ,  C01B21/064 ,  C01B25/08

公开(公告)号：US3269878A

公开(公告)日：1966-08-30

申请号：US33496163

申请日：1963-12-05

Applicant: SIEMENS AG

Inventor： EDWARDO WENZEL FEDERICO ,  HANS MERKEL

IPC: C01B25/06 ,  C22C1/00 ,  C30B25/00 ,  H01L21/00

CPC classification number: C30B25/00 ,  C01B25/06 ,  C22C1/007 ,  C30B29/40 ,  H01L21/00 ,  Y10S148/049 ,  Y10S148/065 ,  Y10S148/072 ,  Y10S148/079

公开(公告)号：US3192139A

公开(公告)日：1965-06-29

申请号：US11621461

申请日：1961-04-19

Applicant: SIEMENS AG

Inventor： HANS MERKEL

IPC: C25C3/34 ,  C25C7/00 ,  C30B13/00

CPC classification number: C25C7/005 ,  C25C3/34 ,  C30B13/00 ,  C30B29/02

Abstract: 913,028. Electrolytically purifying gallium. SIEMENS' - SCHUCKERTWERKE A.G. April 20, 1961 [April 21, 1960], No. 14391/61. Class 41. Gallium is purified by subjecting it to melt electrolysis using as electrolyte a halide of divalent Ga, e.g. GaBr 2 , purified to an extremely high degree by a zone purification method performed one or more times. Fig. 1 shows apparatus comprising an anode at 3 of impure liquid Ga, a cathode at 4 of pure liquid Ga and an electrolyte, e.g. of GaBr 2 , at 1 heated by a furnace 2 to about 190‹ C. Current is supplied by conductors 5 and 6 having Pt points 5a and 6a. An anode current density of 5-10 amps./dm. 2 and a terminal voltage of 0.5 to 1 v. are specified. The GaBr 2 is said to be in the form of Ga + (GaBr 4 ) - and the current yield 100%. The cathode product of one cell may be fed to the anode of a following cell for further purification. Fig. 3 shows apparatus for larger scale working. Ga to form the anode is fed from a storage vessel 39 to the cell 32 via a syphon 40, a level controller 41 being provided. A furnace for heating the cell has a winding 48. Purified cathodic Ga 33, 34 is removed at 44. The parts of the apparatus may be constructed of glass, quartz glass or materials resembling quartz glass.

公开(公告)号：US3395985A

公开(公告)日：1968-08-06

申请号：US56044866

申请日：1966-06-27

Applicant: SIEMENS AG

Inventor： HANS MERKEL

IPC: C01B25/06 ,  C22C1/00 ,  C30B15/00 ,  C30B15/02 ,  C30B15/10

CPC classification number: C30B29/40 ,  C01B25/06 ,  C22C1/007 ,  C30B15/02 ,  C30B15/10 ,  Y10S148/065 ,  Y10S420/903

公开(公告)号：US3392069A

公开(公告)日：1968-07-09

申请号：US38223064

申请日：1964-07-13

Applicant: SIEMENS AG

Inventor： HANS MERKEL ,  SIEGFRIED LEIBENZEDER

IPC: C30B25/02 ,  H01L21/00 ,  H01L21/205 ,  H01L21/3065

CPC classification number: C30B29/06 ,  C30B25/02 ,  H01L21/00 ,  H01L21/3065 ,  Y10S117/913 ,  Y10S148/016 ,  Y10S148/051 ,  Y10S148/052 ,  Y10S148/054 ,  Y10S257/912

公开(公告)号：US3200001A

公开(公告)日：1965-08-10

申请号：US18870162

申请日：1962-04-19

Applicant: SIEMENS AG

Inventor： HANS MERKEL ,  SIEGFRIED LEIBENZEDER

IPC: C23F1/24 ,  H01L21/00 ,  H01L21/20

CPC classification number: H01L21/0262 ,  H01L21/00 ,  H01L21/02532

公开(公告)号：US2927853A

公开(公告)日：1960-03-08

申请号：US74478158

申请日：1958-06-26

Applicant: SIEMENS AG

Inventor： HANS MERKEL

IPC: C22B58/00

CPC classification number: C22B58/00