Browse Prior Art Database

Green Sheet Transfer

IP.com Disclosure Number: IPCOM000044681D
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Haas, RG Zykoff, FB [+details]

Abstract

A rapid and precise arrangement for the transfer of green sheet from a handling chuck to a handling chuck is provided for a multilayer ceramic (MLC) punch tool. In the MLC manufacturing punch operation, the first process step involves punching four corner locating holes in a ceramic sheet. The sheet is then transferred to a first position on an X-Y table where via holes are punched and then to a second position on the table where via verification occurs. The sheets are finally transferred to an accept/reject station. The dimensional relationship of the via holes with respect to the four corner locating holes is of a critical nature. In other downstream operations, metallic paste is screened into the via holes and the sheets are stacked for lamination, both operations using the four corner locating holes for location.