公开(公告)号：US3396317A

公开(公告)日：1968-08-06

申请号：US51049165

申请日：1965-11-30

Applicant: TEXAS INSTRUMENTS INC

Inventor： VENDELIN GEORGE D

IPC: H01L21/00 ,  H01L21/316 ,  H01L23/485 ,  H01L27/00 ,  H01L29/00

CPC classification number: H01L27/00 ,  H01L21/00 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/31662 ,  H01L23/485 ,  H01L29/00 ,  H01L2924/0002 ,  Y10S148/035 ,  Y10S148/037 ,  Y10S148/05 ,  Y10S148/085 ,  Y10S148/151 ,  H01L2924/00

公开(公告)号：US3571722A

公开(公告)日：1971-03-23

申请号：US3571722D

申请日：1967-09-08

Applicant: TEXAS INSTRUMENTS INC

Inventor： VENDELIN GEORGE D

IPC: H01P5/10 ,  H04B1/26

CPC classification number: H01P5/10

Abstract: A strip line compensated unbalanced-to-balanced converter having an inherently wide bandwidth for impedance matching or filtering in strip line applications. A two-sided printed circuit board contains the unbalanced input circuit on one side and the balanced output circuit on the opposite side in the area of the strip line circuit. By analogy, the ''''balun'''' acts like a pushpull transformer having two output signals 180 electrical degrees out-of-phase from each other. Balun circuits find application as the coupling device for connecting the local oscillator signal to a mixer circuit. Another application of a strip line balun is in a harmonic generator wherein two baluns are used, one at the input and the other at the output.

公开(公告)号：US3636420A

公开(公告)日：1972-01-18

申请号：US3636420D

申请日：1970-02-02

Applicant: TEXAS INSTRUMENTS INC

Inventor： VENDELIN GEORGE D ,  WEBSTER ROGER R

IPC: H01L29/00 ,  H01L29/93 ,  H01L3/00

CPC classification number: H01L29/93 ,  H01L29/00 ,  Y10S148/031 ,  Y10S148/05

Abstract: A planar varactor diode for integrated circuit applications, especially at high frequencies, is disclosed. This diode has lowleakage currents, improved reversed bias characteristics, and reduced junction and MOS capacitance. The low-leakage currents are obtained by minimizing the surface perimeter of the device; the low-junction capacitance is obtained by reducing the junction area of the two active regions; and the reduced MOS capacitance is achieved by offsetting the anodic region underneath the anode contact.

公开(公告)号：US3559005A

公开(公告)日：1971-01-26

申请号：US3559005D

申请日：1969-03-07

Applicant: TEXAS INSTRUMENTS INC

Inventor： VENDELIN GEORGE D ,  WEBSTER ROGER R

IPC: H01L27/00 ,  H01L29/86 ,  H01L5/00

CPC classification number: H01L27/00 ,  H01L29/86 ,  Y10S148/037 ,  Y10S148/05

Abstract: DISCLOSED IN A PLANAR VARACTOR DIODE AND A METHOD OF PRODUCING THE SAME FOR INTEGRATED APPLICATIONS, ESPECIALLY AT HIGH FRQUENCIES. THIS DIODE HAS LOW LEAKAGE CURRENTS, IMPROVE REVERSE BIAS CHARACTERISTICS, AND REDUCED JUNCTION AND MOS CAPACITANCE. THE LOW LEAKAGE CURRENTS ARE OBTAINED BY MINIMIZING THE SURFACE PERIMETER OF THE DEVICE, THE LOW JUNCTION CAPACITANCE IS ATTAINED BY REDUCING THE JUNCTION AREA OF THE TWO ACTIVE REGIONS AND THE REDUCED MOS CAPACITANCE IS ACHIEVED BY FORMING A CAVITY BENEATH THE CONTACT OF THE ANODE REGION OR BY OFFSETTING THE ANODE REGION UNDERNEATH THE ANODE CONTACT.