Patents.com Logo
Choose Language:
 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Kenneth K. O -

City: Gainesville
State/Country: FL US
Email and Contact Information


Kenneth K. O ( Gainesville, FL )
No Company infomation exists

Kenneth K. O ( Gainesville, FL )
The subject invention relates to a metal-semiconductor diode clamped semiconductor device and method for producing such device. A specific embodiment of the subject invention utilizes one or more Schottky barriers at, for example, the drain and/or source of at least one transistor of a field effect transistor integrated circuit. The use of one or more Schottky barriers is useful for reducing the susceptibility of latch-up for circuits having two opposite type transistors, i.e., two opposite polarity carriers, in which the two transistors are in close enough proximity to experience latch-up. This can allow the spacing between n- and p-type transistors to be reduced, thus reducing the area of the circuit. The subject invention can also allow the elimination of a metal contact by utilizing the metal layer used to form the metal-semiconductor junction in a complementary IGFET structure, to further reduce the circuit area. The subject invention is applicable to complementary metal oxide silicon (CMOS) devices. Advantageously, the manufacturing process required to produce the subject devices can require minimal adjustments to the standard processing steps used in conventional CMOS processing.
Emitter widths of 0.3 .mu.m on double polysilicon bipolar transistors are achieved using O.8 .mu.m photolithography and a double spacer process. The emitter width reduction is confirmed with structural and electrical measurements. The double-spacer device exhibits superior low current f.sub.T and f.sub.max.