公开(公告)号：JPS6385687A

公开(公告)日：1988-04-16

申请号：JP12728087

申请日：1987-05-26

Applicant: IBM

Inventor： BOWMAN PAUL ,  COWBURN ANTHONY RICHARD ,  MANSBRIDGE DENNIS STANLEY ,  MORGAN WILLIAM MORRIS ,  MOTH FRANK TIMOTHY

IPC: G09F9/30 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/136 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/153

公开(公告)号：GB1178554A

公开(公告)日：1970-01-21

申请号：GB1104767

申请日：1967-03-09

Applicant: IBM

Inventor： MANSBRIDGE DENNIS STANLEY

IPC: C25F3/02

Abstract: 1,178,554. Electrolytic etching and polishing. INTERNATIONAL BUSINESS MACHINES CORP. March 9, 1967, No.11047/67. Hdading C7B. A metal layer on an article is electrolytically etched or polished in an electrolyte which floats on a second liquid and the article is then passed into the second liquid where no etching or polishing occurs. The Figure illustrates uniform electrolytic removal of a Cr layer 5 from an article 7 using an aqueous electrolyte 3, comprising NaOH and Na 2 CO 3 , which floats on an inert liquid 2 such as trichlorethylene trichlorotrifluoroethane or glycerol. In operation, the article is connected as anode and a stainless steel electrode 4 is connected as cathode. The article 7 is then lowered into the electrolyte 3 at a uniform speed. When the whole of the article 7 has been lowered through the electrolyte 3 into the liquid 2 the power supply is switched off. The article is then removed, washed and dried. Removal of Cr from a SiO substrate in making a printed circuit is referred to.

公开(公告)号：DE3684150D1

公开(公告)日：1992-04-09

申请号：DE3684150

申请日：1986-09-26

Applicant: IBM

Inventor： BOWMAN PAUL ,  COWBURN ANTHONY RICHARD ,  MANSBRIDGE DENNIS STANLEY ,  MORGAN WILLIAM MORRIS ,  MOTH FRANK TIMOTHY

IPC: G09F9/30 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/136 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/153 ,  G02F1/17

Abstract: Each display electrode (1,2) is connected to a respective switch through a conductive path (3,4,5). The display electrodes are divided into a number of subsets each of which is formed in respective layers so that the electrodes of an upper subset overlap the edges (10) of the electrodes of the lower subset. The layers are separated by intermediate layers of electrically insulating material (11). The conductive paths from each higher subset pass through gaps between electrodes of any lower subset and through the insulating layers to connect their respective electrodes to the corresp. switches.