公开(公告)号：US3573973A

公开(公告)日：1971-04-06

申请号：US3573973D

申请日：1967-11-13

Applicant: IBM

Inventor： DROTAR JOHN S ,  PARKER ARDEN A ,  SNYDER KEITH A

IPC: C23C18/28 ,  H05K3/18 ,  H05K3/34 ,  H05K3/38 ,  H05K1/00

CPC classification number: C23C18/285 ,  H05K3/184 ,  H05K3/3468 ,  H05K3/38 ,  H05K2201/0129 ,  H05K2203/044 ,  H05K2203/0723 ,  H05K2203/1105 ,  H05K2203/1407

Abstract: A HIGH SPEED ADDITIVE CIRCUIT PROCESS FOR MANUFACTURE OF CIRCUIT LINES UPON A POLYESTER OR POLYIMIDE SUBSTRATE, INCLUDING THROUGH-HOLES THEREIN, COMPRISING THE STEPS OF CLEANING, SENSITIZING, ACTIVATING, PRINTING A NEGATIVE FACSIMILE, OF THE FINAL DESIRED PATTERN OVER THE ACTIVATED SURFACE, HEAT SETTING, ELECTROLESS NICKEL PLATING, CURING, AND FINAL CONDUCTIVE COATING BY FLOW SOLDERING. ONLY ONE STEP MAY EXCEED ONE MINUTE IN TIME. TEMPERATURES AND TIME AT TEMPERATURE DETAILS ARE INCLUDED. CONDUCTIVE LINES AS FINE AS 2 MILS WIDE ON 4 MIL CENTERS MAY BE MADE BY THIS PROCESS.

公开(公告)号：US3919717A

公开(公告)日：1975-11-11

申请号：US49141174

申请日：1974-07-24

Applicant: IBM

Inventor： CULLEN FRANCIS M ,  ROSHON JR DAVID D ,  SNYDER KEITH A

IPC: G11B5/255 ,  G11B5/22

CPC classification number: G11B5/255 ,  Y10S428/90 ,  Y10S428/928 ,  Y10S428/935 ,  Y10T428/1164 ,  Y10T428/12486 ,  Y10T428/12625 ,  Y10T428/12646 ,  Y10T428/12861

Abstract: A wear-resistant surface for magnetic heads comprising diamond particles in a matrix of softer material. A preferred composition utilizes electroplated rhodium having a hardness greater than 900 Knoop, and the diamond particles are rounded particles of uniform size having an average diameter of nine microns.

Abstract translation: 用于磁头的耐磨表面，其包括较软材料的基质中的金刚石颗粒。 优选的组合物使用硬度大于900Nooop的电镀铑，并且金刚石颗粒是具有平均直径为9微米的均匀尺寸的圆形颗粒。

公开(公告)号：US3555235A

公开(公告)日：1971-01-12

申请号：US3555235D

申请日：1967-11-13

Applicant: IBM

Inventor： DARROW WILLIAM C ,  HOLMWOOD RICHARD H ,  SNYDER KEITH A ,  TREIBER WALTER C

IPC: C23C26/00 ,  B23K11/00 ,  B23K9/12 ,  B23K9/04

CPC classification number: B23K11/0013

Abstract: Apparatus for controlling intermittent contact at different points of a consumable element (such as an electrode) with a member (such as a workpiece to be locally hardened) by vibrating the element at high frequency and in such manner as automatically to compensate for consumption of the element and also accommodate and follow irregular contours on the member. Such apparatus is especially suitable for use in a metallic fusion system wherein a consumable electrode imparts its characteristics to the base metal of a workpiece.