公开(公告)号：CA850806A

公开(公告)日：1970-09-01

申请号：CA850806D

Applicant: IBM

Inventor： GUNN JOHN B

公开(公告)号：CA762632A

公开(公告)日：1967-07-04

申请号：CA762632D

Applicant: IBM

Inventor： PRICE PETER J ,  GUNN JOHN B

公开(公告)号：DE1207504B

公开(公告)日：1965-12-23

申请号：DEJ0021911

申请日：1962-06-08

Applicant: IBM

Inventor： GUNN JOHN B

IPC: H01L21/00 ,  H01L21/24 ,  H01L29/00 ,  H01L29/06 ,  H01L29/861 ,  H01L29/88

Abstract: 987,708. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 12, 1962 [June 12, 1961], No. 22500/62. Heading H1K. A unitary semi-conductor device contains in parallel a tunnel junction and a different type of junction such as a normal rectifying junction or a backward junction. As shown in Fig. 1 a semi-conductor body, apparently of germanium, originally all of N+ conductivity has produced therein, for example by vapour diffusion of arsenic, a degenerate region 3. A material containing an acceptor impurity such as gallium is alloyed to the body and forms a tunnel junction 6 with the degenerate region and depending on the degree of doping of the original body forms either a normal rectifying junction or a backward diode junction with region 2. Leads are attached to a large area ohmic contact 8 bridging the two N-type regions and to the alloyed material 4. The forward characteristic of the device over its operating region is dominated by the behaviour of the tunnel junction 6 so that the peak current Ip of the device may be determined by jet etching the tunnel junction. The capacitance of the device can then be adjusted, without altering the peak current, by jet etching the other junction 7.

公开(公告)号：CA1001212A

公开(公告)日：1976-12-07

申请号：CA186056

申请日：1973-11-16

Applicant: IBM

Inventor： GUNN JOHN B

IPC: B41J2/075 ,  B41J2/085 ,  G06K15/10 ,  H04N1/034 ,  H04N1/23

Abstract: 1394019 Ink droplet printers INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1973 [29 Dec 1971] 55404/72 Heading B6F An ink droplet printer comprises droplet charging means in the form of a series of charging electrode segments 14, a charging pulse being applied to the segments in turn synchronized with the passage of a droplet past the segments. The pulses may be binary or analogue to scan the droplet train. In the case of analogue pulses, a combination of digital pulses may be applied to a charging ring (Fig. 5A, not shown) or each charging segment may comprise segments forming a ring, the segments being graded in size (Fig. 5B, not shown).

公开(公告)号：CA904410A

公开(公告)日：1972-07-04

申请号：CA904410D

Applicant: IBM

Inventor： GUNN JOHN B

公开(公告)号：CA769319A

公开(公告)日：1967-10-10

申请号：CA769319D

Applicant: IBM

Inventor： GUNN JOHN B