JPS61164053U - - Google Patents

Info

Publication number

JPS61164053U

JPS61164053U JP4421285U JP4421285U JPS61164053U JP S61164053 U JPS61164053 U JP S61164053U JP 4421285 U JP4421285 U JP 4421285U JP 4421285 U JP4421285 U JP 4421285U JP S61164053 U JPS61164053 U JP S61164053U

Authority

JP

Japan

Prior art keywords

semiconductor device

emitter region

semiconductor substrate

bipolar transistor

utility

Prior art date

1985-03-25

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 239000004065 semiconductor Substances 0.000 claims description 5
• 239000000758 substrate Substances 0.000 claims description 3
• 238000002955 isolation Methods 0.000 claims description 2
• 238000009792 diffusion process Methods 0.000 claims 1
• 238000000034 method Methods 0.000 claims 1