Dave,
     this topic is of great interest to me.
I am using Cadence Allegro and recently I started
to look into HDI.
We do not have demand for via in pad yet,but
I tried my design with blind via in pad.
The Specctra autorouter would not put microvia
in fine pitch pads 20 mils.
I am not sure why, there is enough space.
I am waiting for Cadence to help me with this problem.

So what I am saying is I did not find Cadence to be great
for HDI.
I would like to hear from other Cadence and other designers as well.

Happy Friday

Mirka




Requesting some feedback from end users -

Which toolset is the best for HDI/Microvia design?

Thanks,

Dave Schaefer                          Voice: (204)478-8059
Senior PCB Designer                 FAX:  (204)942-3001
Symbol Technologies                Email: [log in to unmask]
1000 Waverley Street
Winnipeg, MB  R3T 0P3


--
| Mirka Halas                            TSI TelSys Incorporated   |
| Senior PCB Designer                    7100 Columbia Gateway Dr. |
| [log in to unmask]                  Columbia, Maryland 21046  |
| http://www.tsi-telsys.com              (410) 872-3900: Main      |
| (410) 872-3922: Direct                 (410) 872-3901: FAX       |
 -=+=-*********************************************************-=+=-

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