General Information

Serial #

D1A02A-4U21A1

Part Number

23

Total Parts

32

AKA

N/A

Patents

N/A

General Description

Synthetic casing/ Synthetic board with metallic? finish/ Paper labels

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

24.5 cm

Width

22.4 cm

Height

N/A

Thickness

4.2 cm

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Computing Technology

Category

Development & maintenance equipment

Sub-Category

N/A

Manufacturer

AKA

United Microelectronics

Country

Taiwan

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Unknown

Function

A mask is a representation of the layout of a layer of an integrated circuit and is made from the constructions plans for that circuit. A high energy UV-light is shone through the mask onto a silicon wafer which is a coated with photosensitive film, thus imprinting the areas of the wafer not covered by the mask. Additional layers of photosensitive material and different masks are used to build the circuit layer by layer, and metal coating is used to form the wires of the integrated circuit.

Technical

Unknown

Area Notes

Unknown

Details

Markings

Black lettering on two labels reads 'D1A02A-4U22A1' with bar codes/ Raised lettering on case reads'TOPPAN PRINTING CO., LTD./ YOKYO JAPAN', 'TOPPAN' and 'MADE IN JAPAN'/ Indented lettering on case reads '6025 0009'/ Lettering on board reads 'TCE-A1XJ1', 'UMC8D-N-D1A02A-4U22A1' and '23200.00 X 14970.00 UM'/ Blue and white label on case reads in part 'DNP DAI NIPPON PRINTING CO., LTD./ SEMICONDUCTOR COMPONENTS OPERATIONS/ SHIP TO: UMC'/ White and blue label on back reads in part 'Precision Semiconductor Mask Corp./ 6" Reticule 6025 NIK/ Customer: UMC Fab: UB/ Mask Title: UMC8D-N-DIAO4X-4U67A1'

Missing

Unknown - appears complete

Finish

Transparent orange casing/ Metallic board/ White paper

Decoration

N/A