公开(公告)号：US3919700A

公开(公告)日：1975-11-11

申请号：US49052774

申请日：1974-07-22

Applicant: IBM

Inventor： COZZO JOSEPH ,  GARROD DAVID K ,  KAZYAKA THOMAS G ,  MELCHER ROBERT L ,  SHIREN NORMAN S

IPC: G11C11/42 ,  G11C13/04 ,  H01L41/00 ,  H03K3/45

CPC classification number: H03K3/45 ,  G11C11/42 ,  G11C13/042 ,  H01L41/00

Abstract: Piezoelectric photosensitive semiconductor crystals or semiinsulators are employed either to store or to process high frequency signals. Storage is accomplished in the crystal by a stable pattern of trapped electrons produced by the interference between two radio-frequency input signal pulses. The latter are applied successively to the crystal, after an initial illumination, causing ultrasonic waves to be generated. The ultrasonic wave of the first pulse, together with the electric field of the second, cause the trapped electrons to be redistributed in a pattern which has the same spatial variation as the ultrasonic wave. In effect, the information contained in the original pulse is stored in the crystal, the latter serving as a recording medium operating over the whole radio frequency range.

Abstract translation: 压电光敏半导体晶体或半绝缘体用于存储或处理高频信号。 通过由两个射频输入信号脉冲之间的干扰产生的捕获电子的稳定图案在晶体中实现存储。 后者在初始照射之后连续施加到晶体，导致产生超声波。 第一脉冲的超声波与第二脉冲的超声波一起导致被俘获的电子以与超声波相同的空间变化的图案重新分布。 实际上，包含在原始脉冲中的信息被存储在晶体中，后者用作在整个射频范围内工作的记录介质。

公开(公告)号：FR2280172A1

公开(公告)日：1976-02-20

申请号：FR7517192

申请日：1975-05-27

Applicant: IBM

Inventor： COZZO JOSEPH ,  MELCHER ROBERT L ,  GARROD DAVID K ,  SHIREN NORMAN S ,  KAZYAKA THOMAS G

IPC: G11C11/42 ,  G11C13/04 ,  H01L41/00 ,  H03K3/45 ,  G11C11/21 ,  G11C27/00 ,  H01L41/10 ,  H03H9/00

Abstract: Piezoelectric photosensitive semiconductor crystals or semi-insulators are employed either to store or to process high frequency signals. Storage is accomplished in the crystal by a stable pattern of trapped electrons produced by the interference between two radio-frequency input signal pulses. The latter are applied successively to the crystal, after an initial illumination, causing ultrasonic waves to be generated. The ultrasonic wave of the first pulse, together with the electric field of the second, cause the trapped electrons to be redistributed in a pattern which has the same spatial variation as the ultrasonic wave. In effect, the information contained in the original pulse is stored in the crystal, the latter serving as a recording medium operating over the whole radio frequency range.

公开(公告)号：DE2531783A1

公开(公告)日：1976-02-19

申请号：DE2531783

申请日：1975-07-16

Applicant: IBM

Inventor： COZZO JOSEPH ,  GARROD DAVID K ,  KAZYAKA THOMAS G ,  MELCHER ROBERT L ,  SHIREN NORMAN S

IPC: G11C11/42 ,  G11C13/04 ,  H01L41/00 ,  H03K3/45 ,  H01L31/00 ,  G11C11/34

Abstract: Piezoelectric photosensitive semiconductor crystals or semi-insulators are employed either to store or to process high frequency signals. Storage is accomplished in the crystal by a stable pattern of trapped electrons produced by the interference between two radio-frequency input signal pulses. The latter are applied successively to the crystal, after an initial illumination, causing ultrasonic waves to be generated. The ultrasonic wave of the first pulse, together with the electric field of the second, cause the trapped electrons to be redistributed in a pattern which has the same spatial variation as the ultrasonic wave. In effect, the information contained in the original pulse is stored in the crystal, the latter serving as a recording medium operating over the whole radio frequency range.