JPH05343651A - Master slice type integrated circuit device - Google Patents

Abstract

PURPOSE:To improve a utilization efficiency of an element by disposing the element in a different shape from a matrix state partly in an integrated circuit device to constitute a constant-voltage circuit. CONSTITUTION:First resistors 7 (e.g. high resistance), second resistors (e.g. low resistance) and first transistors 9 (e.g. high-power N-P-N transistor), second transistors 10 (e.g. low-power N-P-N transistor) are disposed regularly in a matrix state. Resistors R11, R22, R33 and transistors Q14, Q25, Q36 required for a constant-voltage circuit are disposed in addition to the region in which they are regularly disposed in the matrix state as above. Thus, an accurate constant-voltage circuit can be formed without using the elements disposed in the matrix state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a master-slice type integrated circuit device, and more particularly to a structure for improving the utilization efficiency of elements and improving the degree of integration when forming a highly accurate constant voltage circuit. The present invention relates to a master-slice method integrated circuit device.

[0002]

2. Description of the Related Art In a conventional master-slice type integrated circuit device, as shown in FIG. 3 (a schematic diagram of elements of a conventional integrated circuit device), elements such as transistors, resistors and capacitors are arranged in a matrix on the entire chip. Has been done. Note that FIG.
In FIG. 7, 7 is a first resistor (7a is a first resistor used, 7b is a first resistor not used), and 8 is a second resistor. Further, 9 is the first transistor, 10 is the second transistor (10a is the second transistor used).
, 10b is a second transistor which is not used).

[0003]

In the conventional master-slice type integrated circuit device, since there are only two types of resistance, high resistance and low resistance, the resistance value is largely restricted. When designing an integrated circuit to be mounted on a portable device, the battery-check function is essential, and the current consumption must be reduced. A good constant voltage circuit is needed.

When this is designed with a bandgap constant voltage circuit, as shown in FIG. 2 (circuit diagram of the constant voltage circuit), a high resistance with a halfway value is required. It is impossible to realize the combination, and even if the resistance value close to the optimum value is adopted, as shown in FIG. 3, the resistor 1 (FIG. 2) used for the six second transistors 10a used is used. 32) (1 high resistance is 10KΩ, 102K is 102.5K, 7.2K is 7.5K). In addition, in FIG. 2, 1 to 3 are resistors R ₁ , R ₂ and R ₃
And 4 to 6 are transistors Q ₁ , Q ₂ and Q ₃ .

Therefore, since the ratio of the transistor to be used and the resistance becomes extremely unbalanced, it becomes difficult to form a circuit by an unused element in the vicinity of the element being used, and the utilization efficiency of the element is extremely high. There was a problem of going down.

Therefore, an object of the present invention is to provide a master-slice type integrated circuit device that solves the above-mentioned problems, and more specifically, a master-slice that improves the utilization efficiency of elements and improves the degree of integration. A method integrated circuit device is provided.

[0007]

In the master-slice system integrated circuit device of the present invention, resistors, transistors, etc. necessary for forming a constant voltage circuit having a shape different from that of the elements arranged in a matrix are provided. The element has a structure in which it is formed on the semiconductor substrate together with the matrix-shaped element, thereby achieving the above object.

That is, the present invention relates to a "master-slice type integrated circuit device in which a plurality of elements are arranged in a matrix form and the plurality of elements are connected by metal wiring to form a circuit. The master-slice system integrated circuit device is characterized in that a constant voltage circuit is constituted by elements arranged in a shape different from the matrix in a part of the above. "

[0009]

Embodiment An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a schematic view of elements of an integrated circuit device chip showing an embodiment of the present invention.

In this embodiment, as shown in FIG.
Resistor 7 (eg high resistance) and second resistor 8 (eg low resistance) and first transistor 9 (eg high power NPN transistor) and second transistor 10 (eg low power N).
PN transistors) are regularly arranged in a matrix. In addition to the regions arranged in a regular matrix, the resistors R ₁ , R ₂ and R ₃ and the transistors Q ₁ , Q ₂ and Q, which are the elements necessary for the constant voltage circuit of FIG. ₃ , the resistance R ₁ 1,
Resistor R ₂ 2, resistors R ₃ 3 and the transistor Q ₁ 4, transistors Q ₂ 5, is made of the transistor Q ₃ 6 from structure placed respectively.

[0011]

As described above, according to the present invention, since the elements necessary for forming the constant voltage circuit are arranged in addition to the elements arranged in the matrix, the elements arranged in the matrix. A high-precision constant voltage circuit can be configured without using a device. With such a configuration, the utilization efficiency of the element is improved, and the degree of integration of the integrated circuit device can be improved. That is, in the master-slice method integrated circuit device, when configuring a high-precision constant voltage circuit, according to the present invention, the elements necessary to configure the constant voltage circuit are arranged in advance in the optimum value state. Since it can be easily configured without waste and it is not necessary to use the elements arranged in a matrix, the effect of improving the utilization efficiency of the elements is produced.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an element of an integrated circuit device showing an embodiment of the present invention.

FIG. 2 is a circuit diagram of a constant voltage circuit.

FIG. 3 is a schematic view of elements of a conventional integrated circuit device.

[Explanation of symbols]

1 to 3 resistors R _{1 to} R ₃ 4 to 6 transistors Q _{1 to} Q ₃ 7 first resistor 7 a used first resistor 7 b not used first resistor 8 second resistor 9 first resistor Transistor 10 Second transistor 10a Second transistor used 10b Second transistor not used

Claims (1)

[Claims] 1. A plurality of elements are arranged in a matrix,
In a master-slice system integrated circuit device that forms a circuit by connecting the plurality of elements with metal wiring,
A master-slice type integrated circuit device, wherein a constant voltage circuit is constituted by elements arranged in a part of the integrated circuit device in a shape different from the matrix shape.