SPEC SHEET
PCO2-14™ Polyimide Curing Oven
A clean process oven designed for
polyimide baking and curing applications
The Despatch PCO2-14™ electrically heated oven was designed to meet
the specific process requirements for hard baking polyimide coatings in
an inert atmosphere. This high-performance, clean process oven (ISO
Class 5/Class 100 recirculated airflow) offers many unique components,
including a pressure relief system, an oxygen control system and a process
monitoring system which allows the oven to achieve the strict oxygen level
and atmospheric requirements involved in polyimide curing.
Pressure Relief System
In the "hard bake" polyimide cure process, residual
solvent is removed and desired surface properties are. finalized. The
process of removing solvents requires that the oven contain equipment
to help prevent and collect solvent condensation. Despatch designed the
PCO2-14™ with a pressure relief system that includes a removable "cold
trap", an easy-to-clean condensate trap that helps to prevent polyimide
buildup in the oven's exhaust. Oxygen Monitor and Control System
The PCO2-14™ is an inert atmosphere oven which
allows the oxygen level to be maintained at
20ppm or less to help prevent oxidation of the
polyimides being cured. The oven contains an
O2 monitor which is wired to the purge valve
and turns the nitrogen purge on whenever the
oxygen level is above the O2 monitor set point.
Once the nitrogen purge is complete, the O2
level is maintained at a set point by a controller
that operates a modulating valve during the
curing process. This process minimizes the
nitrogen usage and allows for consistent and
repeatable product curing. Process Monitoring System
The oven's
PC features Protocol 3™ software to
allow for communication between
the PC and the oven, an Ethernet
connection and a 15in (38.1cm) . flat
panel display screen. . The Protocol 3™
software communicates directly with
the oven's Protocol 3™ controller, O2
controller, O2 monitor and integrated
PC to observe and data log entire
cycles and provide the user with realtime
information on set points, actual
chamber temperatures and O2 levels
throughout the entire process.
Standard Features:
- Compact cabinet design that
minimizes footprint
- All interior seams continuously
welded on insulation side to
protect the work chamber from
contamination
- 4in (10.2cm) thick insulation in
chamber to minimize heat loss,
air leakage and external thermal
spots
- Recirculation air is 100%
filtered through a 99.99% HEPA
filter for ISO Class 5 (Class 100)
or better operation
- Magnehelic gauge monitors
HEPA filter pressure to indicate
when to replace filter
- Protocol 3™ control with large LCD display, integrated data
logging capabilities and USB port for simple oven set-up and
data export.
- Silicone-free construction
- End of cycle, high-limit audible
and visual alarms
- Programmable, electronic
door lock
- Installation and burn-off of
HEPA filter including post-burn
off cleaning of the chamber
- Cleaning and triple bagging in
clean room before shipment
- Port 1" (2.5cm) with tri-clamp fitting in center rear of oven
- The removable “cold trap†is an
easy-to-clean condensate trap
that prevents polyimide buildup
in the oven’s exhaust