Artifact Details

Title

Identification sketch of chips representing the increase in bipolar integrated circuit complexity

Catalog Number

102783359

Type

Text

Date

ca. 1968

Extent

1 p.

Description

In 1968 Gordon Moore asked Harry Sello, who worked for him in the Palo Alto R & D Laboratory of Fairchild Semiconductor, to photograph a selection of devices that illustrated his observation of the increasing number of transistors that were being fabricated on a silicon chip every year. The resulting image is posted on the Silicon Engine online exhibit at: http://www.computerhistory.org/siliconengine/moores-law-predicts-the-future-of-integrated-circuits/

Either Harry or Gordon made this sketch to identify the devices in the image. The device type and approximate transistor count for each is as follows:

Upper Row (L to R):
2N697 planar transistor (1960) - 1 component (1 Tx); Micrologic Type G 3-input RTL Gate (1962) - 7 components (3 Tx + 4 R); Micrologic Type R RTL Half-Shift Register (late 1962) - 20 components (8 Tx + 12R): 945 DTL R-S flip-flop (early 1964) – 33 components (13 Tx + 21R)

Lower Row (L to R):
958 Micrologic RTL Decade Counter (late 1964) – 58 components (33 Tx + 25R); 9300 TTL Universal shift register (1966) – 125 components (85 Tx + 40R); 4500 Micromatrix 32-gate DTL array (1967) – 264 components (200 Tx + 64R)

Category

Paper/Record

Collection Title

Harry Sello papers

Credit

Gift of Sheila Sello

Lot Number

X8761.2019