Questions on PCB terminology

Hi there - I've been running across a lot of PCB terminology lately,
and thought I should make sure I'm not completely lost here:

NSMD vs. SMD pads: NSMD means that the hole in the solder mask is
larger than the copper pad, while SMD means the hole in the solder
mask is smaller than the copper pad.

blind via: via that only comes out one side of the PCB
buried via: via that does not come out either side of PCB

Tented via: via with soldermask covering entire hole and pad, can be
done on one or both sides
capped via: via that has the holes covered on the top and bottom
layers with copper (so that hole is not visible)
plugged via: via that is filled with some nonconductive material (what
kind of material is this?)
filled via: via that is filled with solder
encroached via: alot like a tented via, except that the hole is not
completely covered with soldermask - only the majority of the via pad
is covered with soldermask

How far off the mark am I on these? Can anybody give me an idea of
added cost to low quantity PCB runs of all of these via types? I am
mostly interested in how they'd effect runs of 4-8 layer PCBs that I'd
be purchasing in 10-50 unit quantities. Also - what is the idea behind
an encroached via? Is the idea that it's easier/cheaper to do than a
tented via, while being nearly as effective in keeping solder from
being wicked away from a surface mount pad?

Also - does anybody know of some master list that would explain all of
this terminology (and all that I'm leaving out) to me? Maybe a killer
book on the subject? I got my BSEE last May but this sort of stuff was
never even mentioned in my classes.

Thanks!

-Michael
.

Relevant Pages

  • Re: small soldering job
    ... >> Hot air works okay for them too, at least for a few prototypes. ... > pad in the center that is intended to be soldered directly to a pad on the ... > more copper on the other side of the PCB. ... > I like Paul's idea of leaving a hole big enough to get the solder in from ...
    (sci.electronics.design)
  • Re: Home Made UHF 50 Ohm Dummy Load
    ... The only good dummy load I made that works very well at UHF ... sized holes in each, plus a 3mm hole in the centre of one, and a 1.5mm hole ... soldering to both sides of the pcb material. ... Solder a stiff thick insulated ...
    (sci.electronics.repair)
  • Re: Anyone with Eagle ?
    ... this kind of circuit can be easily mounted on perfored, one pad for hole, soldering protoboards using semirigid copper wire for power supply and wirewrapping wire for signals. ... obtaining a PCB hard to do at home. ...
    (comp.os.cpm)
  • Re: small soldering job
    ... > Hot air works okay for them too, at least for a few prototypes. ... pad in the center that is intended to be soldered directly to a pad on the ... more copper on the other side of the PCB. ... I like Paul's idea of leaving a hole big enough to get the solder in from ...
    (sci.electronics.design)
  • Re: DFX to Gerber?
    ... You can drill that by hand no problems, probably take 15 to 20 minutes. ... To line up the two sides print to overhead film on a laser and lay them back to back, line up the pad holes and run some tape down the side of the two overhead films. ... Have the taped bit an inch or two from the edge of the pcb to minimise the error due to the thickness of the pcb that will be placed between them. ... They make it easy to solder both sides if needed and also for fault finding/debugging. ...
    (rec.crafts.metalworking)