Title
Identification sketch of chips representing the increase in bipolar integrated circuit complexityCatalog Number
102783359Type
DocumentDescription
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)
Date
ca. 1968Extent
1 p.Category
Paper/RecordCollection Title
Harry Sello papersCredit
Gift of Sheila SelloLot Number
X8761.2019
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