公开(公告)号：US3860465A

公开(公告)日：1975-01-14

申请号：US32851573

申请日：1973-02-01

Applicant: ERICSSON TELEFON AB L M

Inventor： MATZNER EVA ,  STERNBECK OLAF

IPC: H01L21/00 ,  H01L29/8605 ,  H01L7/50

CPC classification number: H01L29/8605 ,  H01L21/00 ,  Y10S148/051 ,  Y10S148/085 ,  Y10S148/136

Abstract: The invention refers to a method for obtaining an accurately determined high resistance in a resistor produced in a single crystalline substrate in the form of a diffused region limited in length, width and depth direction, which region is covered with an oxide layer and is provided with a first and a second window in the oxide layer for connection of two terminal contacts. According to the invention, a third window is made in the oxide layer on the top of the diffused region by means of a conventional photo-resist and etching technique whereupon the diffused region is etched in the depth direction through the third window for a predetermined time period during which such a quantity of material is removed that the resistance of the quantity of material remaining in the diffused region, measured between the first and second window, will be equal to a predetermined resistance value.

Abstract translation: 本发明涉及一种在长度，宽​​度和深度方向上限制的扩散区形式的单晶衬底中制造的电阻器中精确确定的高电阻的方法，该区域被氧化物层覆盖，并且具有 用于连接两个端子触点的氧化物层中的第一和第二窗口。 根据本发明，通过常规的光刻胶和蚀刻技术在扩散区域顶部的氧化物层中形成第三窗口，于是扩散区域沿深度方向通过第三窗口蚀刻预定时间 消除这样的材料量的时间段，即在第一和第二窗口之间测量的在扩散区域中剩余的材料的数量的电阻将等于预定的电阻值。

公开(公告)号：US3490740A

公开(公告)日：1970-01-20

申请号：US3490740D

申请日：1967-11-30

Applicant: ERICSSON TELEFON AB L M

Inventor： STERNBECK OLAF ,  ANDERSEN KARE ,  LAGERCRANTZ BENGT AKE

IPC: H01G9/035 ,  H01G9/02 ,  H01G9/022

CPC classification number: H01G9/022

公开(公告)号：US3867652A

公开(公告)日：1975-02-18

申请号：US40685673

申请日：1973-10-16

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORKLUND FRITZ LARS GUNNAR ,  STERNBECK OLAF

IPC: H03K17/90 ,  H03F15/00 ,  H01V5/00

CPC classification number: H03K17/90 ,  Y10T307/766

Abstract: The invention refers to a contactless switch, comprising a Halleffect element that has a pair of input electrodes for applying an operating voltage to generate a current in an internal current path and at least one output electrode located adjacent the current path to derive a Hall-potential when an external magnetic field influences the current laterally, and an amplifier circuit that is controlled by the Hall-potential. According to the invention, the Hall-effect element is provided with at least one control electrode for controlling the magnitude of such current, and the amplifier circuit is provided with at least one output terminal connected to the control electrode of the Hall-effect element for feeding back an amplified Hall-potential in such a phase that the amplifier circuit is provided with positive feedback.

Abstract translation: 本发明涉及一种非接触式开关，包括霍尔效应元件，该霍尔效应元件具有一对输入电极，用于施加工作电压以产生内部电流通路中的电流，并且至少一个输出电极位于电流路径附近以导出霍尔 当外部磁场横向影响电流时的电位，以及由霍尔电位控制的放大器电路。 根据本发明，霍尔效应元件设置有用于控制这种电流的大小的至少一个控制电极，并且放大器电路设置有连接到霍尔效应元件的控制电极的至少一个输出端子， 在放大器电路提供正反馈的相位中反馈放大的霍尔电位。