Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
STENCIL STRUCTURE AND MANUFACTURE HTEREOF
Document Type and Number:
Japanese Patent JPH06106873
Kind Code:
A
Abstract:

PURPOSE: To improve precision in printing by positioning a second stainless stencil whose open part is the same as that of a first stencil, with groove therein, and fixing those stencils.

CONSTITUTION: In a stencil structure to be used when a solder cream is to be printed on a surface mounting substrate 1, a groove 2 is formed by half etching at one side on a stencil surface excepting an open part 5 of a first stainless stencil. The stencil surface excepting the open part 5 and the groove 2 is coated with an adhesive, on which a second stainless stencil whose open part is the same as that of the open part 5 of the stencil is attached under pressure. The adhesive is cured, two stencils are fixed so as to make a stencil structure. By forming such a stencil structure, in surface mounting method with very minute surface mounting semiconductor element, change of composition of the solder cream with time, which affects the parting property of the solder cream, can be restrained.


Inventors:
HIRABAYASHI MITSUO
Application Number:
JP25840292A
Publication Date:
April 19, 1994
Filing Date:
September 28, 1992
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SEIKO EPSON CORP
International Classes:
B41N1/24; H05K3/34; H05K3/12; (IPC1-7): B41N1/24
Attorney, Agent or Firm:
Kisaburo Suzuki (1 outside)