公开(公告)号：CA1079851A

公开(公告)日：1980-06-17

申请号：CA250132

申请日：1976-04-13

Applicant: IBM

Inventor： CURTIS HUNTINGTON W ,  VERKUIL ROGER L

IPC: G11C11/38

Abstract: A novel solid state device which exhibits two-terminal negative resistance characteristics. The negative resistance characteristic may be readily shaped by external bias control, providing a wide range of oscillatory or bistable properties. The negative resistance characteristic is obtained by a novel means of device operation exploiting an electron hole pair multip.ication effect which is enhanced by high substrate doping in conjunction with appropriate biasing of the junctions within the device. The device exhibits a bias voltage controlled small signal negative resistance region, i.e., the device has a unique feature, a negative slope over an adjustable portion of its V-I characteristic. Bistable action is obtained with a single device. In the first stable state ("off") of the device, power dissipation is zero. In the second stable state ("on") of the device, power dissipation is adjustable to less than one micro-watt.

公开(公告)号：CA1232950A

公开(公告)日：1988-02-16

申请号：CA469466

申请日：1984-12-06

Applicant: IBM

Inventor： CURTIS HUNTINGTON W ,  DODGE FREDERICK A ,  FRANCIS DAVID B ,  MIZZI JOHN V

IPC: A61B5/04 ,  A61B5/0432 ,  B41J3/407 ,  B41J5/30 ,  G01D9/00 ,  G06F3/12 ,  G06F17/00 ,  G06K15/00

Abstract: SYSTEM FOR PLOTTING A MINIATURE ECG A method of printing an analog waveform having a time variable, such as an ECG by first converting the analog waveform into a time sequence of digitally expressed values, forming predetermined groups of digital data and then determining maximum and minimum amplitude values of the digital data within the groups. These values are stored in a line buffer memory. A recording medium advances past a transversely oriented linear array of discrete recording elements, such as a linear array dot printhead. The serial stored values are read out in parallel to each of the recording elements, with the elements actuated in parallel by the stored values at an initial time and for time durations for each element that is a function of the stored maximum and minimum amplitude values for that element. The waveform is recorded as a series of appropriately placed short parallel longitudinal lines to form in aggregate a transverse waveform display on the recording medium.

公开(公告)号：FR2307335A1

公开(公告)日：1976-11-05

申请号：FR7605142

申请日：1976-02-17

Applicant: IBM

Inventor： CURTIS HUNTINGTON W ,  VERKUIL ROGER L

IPC: G11C11/35 ,  G11C11/39 ,  G11C11/412 ,  H01L29/78 ,  H01L21/331 ,  H01L21/8247 ,  H01L27/11 ,  H01L29/10 ,  H01L29/417 ,  H01L29/73 ,  H01L29/739 ,  H01L29/788 ,  H01L29/792 ,  H03K3/356 ,  G11C11/40 ,  G11C5/02

Abstract: A novel solid state device which exhibits two-terminal negative resistance characteristics. The negative resistance characteristic may be readily shaped by external bias control, providing a wide range of oscillatory or bistable properties. The negative resistance characteristic is obtained by a novel means of device operation exploiting an electron hole pair multiplication effect which is enhanced by high substrate doping in conjunction with appropriate biasing of the junctions within the device.