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Microtechnology

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Figure 6. Micro-T packages compared with TO-18 can.

DISPLACEMENT VOLUME

PLAN AREA

(cu. in.)

(sq. in.)

Excluding
Including
Excluding
Including
leads
leads
leads
leads
Micro-T Package
..... . . . .00030
.00033
.0057
.0107
TO-18 package
..... . . . . .0058
.0063 .044 .044
Ratio: TO-18 to Micro-T
19:1
19:1 8:1
4:1
quency, but constant development efforts over the past two years have now produced a high-performance high-frequency micropower transistor. Figure 5 shows its gain-bandwidth product-a measure of performance-versus bias current (a function of power) compared with that of a commercially available counterpart.   The special micropower devices are already available in quantity to the intelligence community. The reduction in operating power and increase in frequency brought a further reduction in size. Figure 6 shows a half dozen of the Micro-T packages surrounding a TO-18 can. The reduction in size and power is not limited to a particular type of transistor but applies
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Posted: May 08, 2007 08:19 AM
Last Updated: Aug 05, 2011 01:03 PM