公开(公告)号：IT1148822B

公开(公告)日：1986-12-03

申请号：IT2161180

申请日：1980-04-24

Applicant: IBM

Inventor： BLUM SAMUEL EMIL ,  GUTFELD VON ROBERT JACOB ,  MELCHER ROBERT LEE ,  ROMANKIW LUBOMYR TARAS ,  KOVAC ZLATA

IPC: H05K20060101 ,  H05K

Abstract: A selective electroplating process involves placing a cathode and an anode in a non-photo decomposable electrolyte, directing a focusable beam of energy of intensity 102-106 W/cm2 onto the cathode surface to heat the regions to be plated, and establishing an electrical potential between the cathode and the anode. Also claimed is a similar process which employs a light beam of intensity \-102W/cm2 for heating the cathode surface. The process is esp. useful for personalising the repairing integrated circuits, but is also useful e.g. in video display techniques. Deposition rates of about 103 times greater on the heated regions than on the background can be achieved.

公开(公告)号：SG54481A1

公开(公告)日：1998-11-16

申请号：SG1997000898

申请日：1997-03-22

Applicant: IBM

Inventor： SCHROTT ALEJANDRO GABRIEL ,  GAMBINO RICHARD JOSEPH ,  GUTFELD VON ROBERT JACOB

IPC: G01V15/00 ,  G06K19/06 ,  G08B13/24 ,  H05K1/02

Abstract: The invention relates to a special type of magnetic tag that serves both as an identifier of the article to which it is attached and as an antitheft device. The former attribute is especially important should stolen property be recovered. Identification comes about through the use of an array of individual magnetic elements that are closely spaced, preferably along and perpendicular to an amorphous wire or strip. The magnetic elements can take the form of magnetic ink, high coercivity wire, thin foil, or amorphous wire. The array may be personalized (coded) by leaving out elements of the array or driving selected elements to saturation while others remain demagnetized. The elements can also be in the form of a double array to constitute '1's and '0's to form a code. Reading of the elements is accomplished with a special reading head consisting or one or more small magnetic circuits coupled to one or more pickup loops. A longer length of soft magnetic wire or thin strip is used to trigger an anti-theft alarm when activated by an external field from a magnetic gate.