公开(公告)号：US3740523A

公开(公告)日：1973-06-19

申请号：US3740523D

申请日：1971-12-30

Applicant: BELL TELEPHONE LABOR INC

Inventor： COHEN M ,  FULTON A

IPC: G11C17/08 ,  H01L21/00 ,  H01L23/482 ,  H01L23/525 ,  B23K9/00

CPC classification number: H01L23/5258 ,  G11C17/08 ,  H01L21/00 ,  H01L23/4822 ,  H01L24/01 ,  H01L2924/10253 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/00

Abstract: A beam-lead silicon integrated circuit read-only memory is made in a conventional manner by forming an array of transistors on a silicon substrate, except that the gold portion of one conductive lead to each memory cell is severed, as by gold etching. Conductive connection to each memory cell is, however, maintained by the platinum-titanium intermediate layer that underlays the gold conductor. The array is permanently encoded by selectively vaporizing, with a laser beam, the exposed platinum layer of certain memory cells. This technique permits laser encoding of a beam-lead silicon integrated circuit with a sufficiently low power beam as not to endanger the silicon substrate.

Abstract translation: 通过在硅衬底上形成晶体管阵列，除了通过金蚀刻将每个存储单元的一个导电引线的金部分切断之外，以常规方式制造光束引线硅集成电路只读存储器。 然而，通过支撑金导体的铂钛中间层来保持与每个存储单元的导电连接。 通过用激光束选择性地蒸发某些存储器单元的暴露的铂层来永久地编码阵列。 该技术允许具有足够低功率光束的光束引线硅集成电路的激光编码，以免危及硅衬底。

公开(公告)号：US3720784A

公开(公告)日：1973-03-13

申请号：US3720784D

申请日：1971-02-12

Applicant: BELL TELEPHONE LABOR INC

Inventor： MAYDAN D ,  COHEN M ,  KERWIN R

IPC: B23K26/08 ,  B41M5/24 ,  G03B15/00 ,  G03C9/00 ,  G09G3/00 ,  G11B7/241 ,  H04N1/23 ,  H04N5/76 ,  G11B7/00 ,  G11B11/02

CPC classification number: H04N5/76 ,  B23K26/0821 ,  B23K26/361 ,  B23K26/389 ,  B23K26/40 ,  B23K2203/42 ,  B23K2203/50 ,  G03B15/00 ,  G03C9/00 ,  G09G3/002 ,  G09G3/025 ,  G11B7/241 ,  G11B7/2535 ,  H04N1/23

Abstract: An image comprising a multitude of small discrete holes is formed by a laser in a radiation absorbing film. Appropriate means form a large number of brief-duration, amplitude-modulated pulses of optical radiation. These pulses are then deflected and focused to form an array of discrete holes in a film, such as a 500 Angstrom thick layer of bismuth, on a polyester substrate. By varying the energy in each pulse, the size of the holes can be varied to form images having a gray scale.

Abstract translation: 通过激光在辐射吸收膜中形成包括多个小离散孔的图像。 适当的手段形成了大量的短时间，幅度调制的光辐射脉冲。 然后这些脉冲被偏转和聚焦，以在聚酯基底上形成薄膜（例如500埃厚的铋层）中的离散孔阵列。 通过改变每个脉冲中的能量，可以改变孔的尺寸以形成具有灰度级的图像。