selection is not just a matter of the technology of the stencil
but also the service the supplier can offer.
overiding philosophy of get it right first time, Photo Etch
Consultants operates its stencil division by responding to
customers requirements whether in assisting with stencil design
issues or providing stencils on extremely short lead times. We
endeavour to minimise the problems that this all important element
of the SMT process can present.
allows for the manufacture of both Laser cut and Chemically etched
stencils, which in their relative applications will produce prints
of equal quality and yield.
Laser cut stencils are manufactured
in Stainless Steel as this is the bespoke material for most Laser
cutting systems. The Etched stencils, however, are manufactured in
Nickel Silver, a material that Photo Etch has uniquely promoted
for many years.
For applications requiring variable depth in
the paste deposit we can provide multilevel or stepped stencils to
ensure maximisation of paste process.
For all types of stencil
we utilise in process quality control and final stencil inspection
reports give the process operative all the necessary information
for online SPC and process evaluation.
The Laser cut
stainless steel option will ensure that the pads printed for
devices such as fine pitch QFP’s and Micro BGA’s are
uniform across the stencil thus eliminating one of the variables
which can cause problems in the printing process.
of a Laser cut stencil is produced by the combination of accurate
and speedy positioning of the Laser combined with the quality and
power of the laser itself.
We have ensured that the
specification of the equipment in our Laser cutting system is the
best available in terms of accuracy speed and power. This will
ensure that we can provide stencils of exceptional quality at
extremely competitive prices with the flexibility to adapt to
changes in stencil technology.
Etched stencils are
still a popular choice due to their low cost in comparison to
Laser cut or electroformed varieties but are yet still totally
suitable for many printing requirements.
Etched stencils are
available in both stainless steel and nickel silver.
For printers that use
traditional aluminium section frames we can offer both new frames,
reconditioned or hold stock of customers own frames.
the QTS Wizard Tensioning system . This system provides foils with
a protective edging to ensure truely safe operator handling.
also manufacture stencils to suit the Zelflex and Tetra/Micromount
Other systems are subject to Patent design protection
and although some of these systems are available from
Liscenced manufacturers, some of the systems only allow supply of
stencils from the Patent Holders which obviously restricts choice
in terms of both cost and supplier.
When a variable
thickness stencil is required when can produce ‘Step up’
and ‘Step Down’ or a combination of the both suing our
in house etching facility.
PEC has worked closely
with manufacturers and end users on a variety of novel
solutions for the reprint of boards where component removal has
been necessary. We are therefore in a position to offer sound
advice dependent upon customers particular problems.
We can manufacture
squeege blades to your exact specification with significant
savings over OEM versions