GB1299077A - Improvements relating to solid state circuit packages - Google Patents
Improvements relating to solid state circuit packagesInfo
- Publication number
- GB1299077A GB1299077A GB2090769A GB2090769A GB1299077A GB 1299077 A GB1299077 A GB 1299077A GB 2090769 A GB2090769 A GB 2090769A GB 2090769 A GB2090769 A GB 2090769A GB 1299077 A GB1299077 A GB 1299077A
- Authority
- GB
- United Kingdom
- Prior art keywords
- neck portion
- angle
- strip
- solid state
- state circuit
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
- H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
1299077 Lead frames for semi-conductor devices C BRANDAUER & CO Ltd 14 April 1970 [24 April 1969] 20907/69 Heading H1K A lead frame for a solid state circuit includes an outer rim 9 with at least one lead strip 15 extending inwardly therefrom, the strip 15 including a portion 17 having parallel longitudinal edges and a neck portion 19 joining the portion 17 to the rim 9 and having a longitudinal edge 20 which joins and includes an obtuse angle with one of the edges of the portion 17 and which also intersects the produced median line 22 of the portion 17 at an acute included angle 23. The angle- 23 is preferably 25-30 degrees, and the neck portion 19 of the strip 15 is ultimately severed from the lead frame along a line 26 which includes an angle of 50- 60 degrees with the edge 20 of the neck portion 19. An alternative shape for the neck portion 19 is disclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2090769A GB1299077A (en) | 1969-04-24 | 1969-04-24 | Improvements relating to solid state circuit packages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2090769A GB1299077A (en) | 1969-04-24 | 1969-04-24 | Improvements relating to solid state circuit packages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1299077A true GB1299077A (en) | 1972-12-06 |
Family
ID=10153820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2090769A Expired GB1299077A (en) | 1969-04-24 | 1969-04-24 | Improvements relating to solid state circuit packages |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1299077A (en) |
-
1969
- 1969-04-24 GB GB2090769A patent/GB1299077A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |