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this video will demonstrate the inner
layer check capability available in the
constraint manager demonstrate it will
be how to create enter layer checks to
create our inter layer rules what to
select
from the left side and the right side
and then define down the bottom the type
the value or that's enabled or not the
DRC label which is the right-hand side
of the DRC marker which DRC subclass
that goes on in a description so first
let's create a gap rule this rule is
going to create a gap between vias and
pins to a transition area to prevent
cracking and splitting of the holes in
the Flex area so I want to create one
but I'm gonna I can now use these
filters and layers and things like that
so one side says vias and pin so I'm
going to select in here and select vias
and pins you notice now on the left-hand
side I only have available certain
layers it's redefined my left-hand side
to be only those on the layers that are
contained vias and pins the other one
has geometries for layer two but knows
there's a lot of different ones and
again remember this is a transition area
so I'm going to just type in T up here
it is now filtered everything with a T
I'll now do an R for transition and
notice the only thing now that comes out
as a transition zone so it's pretty easy
for me to fill this filter this out and
make this matrix a lot smaller so I
wanted the pins and vias on the internal
layer or the Flex one layer so I'm going
to select here and notice at the very
top my rules are that has been added in
layer 1 is the vias and pins on flex 1
and it against the transition zone I
have to define the rest of the values so
my rule type again is gonna be gap so I
will select under here change that the
gap the value wants to be twelve Mills
let's say I want that enabled the DRC
label again
and they'll put in like a lowercase T
for transition I'm gonna have that
defined on the put it on the D or C sub
class flex one and the description will
type in via and pin to transition area
to prevent cracking so that's my new
rule has been defined we can now check
to see if we have any violations of that
so let me go back to my design
I'll use a view file here is my
transition zone you can kind of see it
highlighted right there as a Texas
transition so this shape right here is a
transition zone these are my vias now
since I just created that rule either
update my DRC I'll use tools update DRC
notice now I have some violations here
I'll zoom in a little bit more now you
can see there's my vias notice that
there's the eye and the T the lowercase
T and the DRC marker says it should be
12 mil gap it's only basically three
mils away so I could go ahead now and
just slide these vias out of the way let
me go into edit application mode I'll
select and drag on the video does it
slow it down some
and therefore I have removed all my
DRC's let's define a insight rule we use
this to define that the edge of a
stiffener adhesive geometry to the edge
of this stiffener itself we're doing
this to make sure that we prevent the a
tease it from using outside the
stiffener we must have a minimum value
of 45 mils so that the stiffener
adhesive must be contained within the
boundary of the stiffener so since we
want this stiffen their adhesive to be
inside of the stiffener we'll use the
inside rule so let's take a look here at
another view file so right now we have
that's the stiffener we don't have the
adhesive done yet we'll do that in a
second so let's go create our rule we'll
go to the constraint manager we want to
put this back to geometries and for the
adhesive it's gonna be it starts off ADH
so we're gonna the adhesive on stiffener
flex one let's do this first then we'll
do there's our very set two geometries
so I want the stiffeners so we want the
rule for the adhesive on the stiffener
flex one with the stiffener flex one
that's the wall I want to create you can
see that got added up top here that's an
inside rule since the adhesive wants to
be inside of this stiffener so this is
layer 1 this is layer 2 so we want a one
inside to rule we want them to be at
least 45 mils inside the other one we're
going to enable that the DRC markers use
a a uppercase a4 like adhesive we'll
leave that on interlayer and we'll just
call this a adhesive
compression spacing to prevent leakage
so that rule has been created let's go
back to the PCB editor again
that's my stiffener flex one I don't
have the adhesive yet so let's we'll
just use the shape rectangular command
you're the options window make sure that
is on the class rigid flex subclass will
be adhesive stiffener flex one and I'm
gonna type in X and Y's
so notice that where that went in it's a
little bit inside the adhesives a little
bit inside there but not far enough I
move my mouse over the DRC notice it
wants to be 45 right now the way that
was put in that was only five mils
inside so again we could just use the
shape at application mode I could just
click when I get on a boundary you zoom
in some
drag that that way some
notice again it has to be on all edges
so that's why I have to keep on moving
these on ball four sides okay I have to
move it down just a little bit further
you get the idea
that's create and over that rule in this
case we'll use the overlap that the
templated material is extended into the
transition area so again I can go to my
visibility so we went here's the
transition area this is the tin plating
area we'll go back to the constraint
manager they're both on geometries not
they're not on conductors we'll do TR
for the transition area ten of the ten
area do it on the template bottom to the
transition so often now come down here
and create a new rule this wants to be
an overlap the value is going to be 25 I
have that enabled we'll pick a letter of
oh I'll have that on inter layer prevent
tin plating peeling good but the PCB
editor again we're doing update DRC
notice we have it violation down here
this week 25 mil door that there are
actually only 10 mils overlap
so again I could just drag this edge out
to guarantee that they're now overlapped
by that much this concludes the video
that demonstrated the interlayer check
capability available in the constraint
manager this video focused on how to
create enter layer checks
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