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Flexibility
The BETAsoft-Board software is very flexible, and can accomodate various
types of boards in most electronics industries. Multi-layer boards of
irregular shapes and sizes, as shown in the figure, are all handled
in BETAsoft.
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Library
Two libraries are provided in BETAsoft-Board to store component information.
The Working Library is created by the ECAD interface, and contains the
components on your design board. The Master Library contains 2500 fully
defined component, and allows for unlimited expansion. Components can
be saved into the Master Library from the Working Library as you build
a complete company database.
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Component Powers
Component Powers can be viewed graphically through our view component
power screen. The scale at the left assigns the different powers to
a color.
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Board and Environment
Board properties and environment setup are critical parts of thermal
analysis. Heat sinks, conduction pads, and thermal screws can be modeled
with ease. BETAsoft allows for forced convection analysis, or for sealed
enclosures with varying pressure and gravity. Space and ground based
electronics are both modeled effectively.
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Component Temperatures
The most important goal of thermal design is to obtain the component
casing and junction temperatures. BETAsoft-Board calculates the average
case temperature of each component, along with the junction temperatures
when THETAJC is provided. Color displays of the component casing and
junction temperatures provide a quick view of the hot components. The
values are also tabulated in the numerical output.
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Excess Temperature
The failure rates of components are exponentially proportional to the
junction temperatures and dependent on the I.C. technology. Therefore,
different types of components have different limiting temperatures.
BETAsoft-Board allows the user to input these limiting temperatures,
and provides an output screen to monitor the deviations from the specified
limits.
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Board Temperature Map
The temperature map predicted by BETAsoft reveals the heat conduction
phenomena in the board. Since the thermal expansion is proportional
to the temperature, the high temperature regions may bulge or warp during
operation. This may cause the pins of surface mount devices to detach.
BETAsoft-Board identifies the hot spots on the board during the design
stage.
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Temperature Gradient
A color map of temperature gradients across the board is also provided
as output. A severe temperature gradient usually induces high thermal
stress due to the significant differential in thermal expansion. High
thermal stress areas are also locations where board cracking or warping
is most likely to occur. BETAsoft alerts you to potential trouble spots
on your board.
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