GB1376595A - Methods of testing electric circuit arrangements - Google Patents
Methods of testing electric circuit arrangementsInfo
- Publication number
- GB1376595A GB1376595A GB5156870A GB5156870A GB1376595A GB 1376595 A GB1376595 A GB 1376595A GB 5156870 A GB5156870 A GB 5156870A GB 5156870 A GB5156870 A GB 5156870A GB 1376595 A GB1376595 A GB 1376595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltages
- board
- testing
- semi
- methods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
1376595 Testing printed circuit boards GENERAL ELECTRIC CO Ltd 3 Jan 1972 [29 Oct 1970] 51568/70 Heading G1U A method of testing a printed circuit board carrying one or more semi-conductor junctions is characterized in that the fixed potentials applied to the board, and those that are subsequently applied to effect the tests, are less than the barrier potentials of the semi-conductor junctions on the board. As described, fixed voltages of e.g. 100mV and OV are applied to appropriate lines 10, 11 of a circuit under test such as that shown, and then test voltages of a similar magnitude are applied sequentially to points A,B,C, automatically under programme control and the resulting voltages at other points 1, 2, 3 .... in the circuit are measured and compared with programmed pre-set tolerances, any deviations causing a print-out to be made.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5156870A GB1376595A (en) | 1970-10-29 | 1970-10-29 | Methods of testing electric circuit arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5156870A GB1376595A (en) | 1970-10-29 | 1970-10-29 | Methods of testing electric circuit arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1376595A true GB1376595A (en) | 1974-12-04 |
Family
ID=10460518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5156870A Expired GB1376595A (en) | 1970-10-29 | 1970-10-29 | Methods of testing electric circuit arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1376595A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167196A (en) * | 1984-11-09 | 1986-05-21 | Membrain Ltd | Device orientation test method |
EP0305148A1 (en) * | 1987-08-26 | 1989-03-01 | Hewlett-Packard Company | Determining component orientation |
-
1970
- 1970-10-29 GB GB5156870A patent/GB1376595A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167196A (en) * | 1984-11-09 | 1986-05-21 | Membrain Ltd | Device orientation test method |
US4727317A (en) * | 1984-11-09 | 1988-02-23 | Membrain Ltd. | Device orientation test method suitable for automatic test equipment |
EP0305148A1 (en) * | 1987-08-26 | 1989-03-01 | Hewlett-Packard Company | Determining component orientation |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |